Specification Title of Invention: Olefin Polymer Technical field [One] [Mutual citation with related application] [2] This application claims the benefit of priority based on Korean Patent Application No. 10-2017-0179657 filed on December 26, 2017, and all contents disclosed in the documents of the Korean patent application are included as part of this specification. [3] [Technical field] [4] The present invention relates to an olefin-based polymer, and more specifically, to a low-density olefin-based polymer having improved blocking properties through improved hardness. Background [5] Polyolefins have excellent moldability, heat resistance, mechanical properties, hygiene quality, water vapor permeability, and appearance properties of molded products, and are widely used for extrusion molded products, blow molded products and injection molded products. However, since polyolefins, especially polyethylene, do not have a polar group in their molecule, they have low compatibility with polar resins such as nylon, and low adhesiveness with polar resins and metals. As a result, it has been difficult to blend polyolefins with polar resins or metals or to laminate them with these materials. Further, the molded article of polyolefin has a problem of low surface hydrophilicity and antistatic property. [6] In order to solve this problem and increase the affinity for polar materials, a method of grafting a polar group-containing monomer onto a polyolefin through radical polymerization has been widely used. However, this method has a problem of low miscibility due to poor viscosity balance between the graft polymer and polar resin due to intramolecular crosslinking and cleavage of the molecular chain of the polyolefin during the graft reaction. In addition, there was a problem in that the appearance characteristics of the molded article were low due to a gel component generated by intramolecular crosslinking or a foreign substance generated by cleavage of a molecular chain. [7] In addition, as a method of preparing an olefin polymer such as an ethylene homopolymer, an ethylene/α-olefin copolymer, a propylene homopolymer or a propylene/α-olefin copolymer, a polar monomer is copolymerized under a metal catalyst such as a titanium catalyst or a vanadium catalyst. Method was used. However, when a polar monomer is copolymerized using a metal catalyst as described above, there is a problem in that the molecular weight distribution or composition distribution is wide, and the polymerization activity is low. [8] As another method, a method of polymerization in the presence of a metallocene catalyst made of a transition metal compound such as zircononocene dichloride and an organoaluminum oxy compound (aluminoxane) is known. When a metallocene catalyst is used, a high molecular weight olefin polymer is obtained with high activity, and the resulting olefin polymer has a narrow molecular weight distribution and a narrow composition distribution. [9] In addition, a metallocene compound having a ligand of a non-crosslinked cyclopentadienyl group, a crosslinked or non-crosslinked bisindenyl group, or an ethylene bridged unsubstituted indenyl group/fluorenyl group is used as a catalyst to prepare a polyolefin containing a polar group. As a method, a method of using a metallocene catalyst is also known. However, these methods have a disadvantage of very low polymerization activity. For this reason, although a method of protecting a polar group by a protecting group is being carried out, when introducing a protecting group, there is a problem that the process becomes complicated because the protecting group must be removed again after the reaction. [10] Ansa-metallocene compound is an organometallic compound comprising two ligands connected to each other by a bridge group, and rotation of the ligand is prevented by the bridge group, and the activity of the metal center and The structure is determined. [11] Such ansa-metallocene compounds are used as catalysts in the production of olefin-based homopolymers or copolymers. In particular, it is known that an ansa-metallocene compound containing a cyclopentadienyl-fluorenyl ligand can produce a high molecular weight polyethylene, through which the microstructure of polypropylene can be controlled. have. [12] In addition, an ansa-metallocene compound containing an indenyl ligand is known to be capable of producing a polyolefin having excellent activity and improved stereoregularity. [13] As such, various studies have been made on ansa-metallocene compounds that can control the microstructure of olefin-based polymers while having higher activity, but the degree is still insufficient. Detailed description of the invention Technical challenge [14] The problem to be solved by the present invention is to provide a low-density olefin-based polymer having improved blocking properties by improving hardness. Means of solving the task [15] In order to solve the above problems, the present invention has a (1) density (d) of 0.85 g/cc to 0.90 g/cc, and (2) a melt index (Melt Index, MI, 190°C, 2.16 kg load condition) of 0.1 g/10 minutes to 15 g/10 minutes, (3) the density and melting temperature (Tm) satisfy the following Equation 1, and (4) the ratio of the hardness (Shore A) to the melting temperature (Tm) (hardness/ Tm) provides an olefin-based polymer of 1.0 to 1.3. [16] [Equation 1] [17] Tm(℃)= a×db [18] In Equation 1, 2350 7.91 (MI 2.16 ) It could be -0.188 . The I 10 and I 2. 16 represent a melt index (MI), measured by ASTM D-1238, and can be used as a label for molecular weight. [48] The olefin-based polymer is an olefin-based monomer, specifically an alpha-olefin-based monomer, a cyclic olefin-based monomer, a diene olefin-based monomer, a triene olefin-based monomer, and a styrene-based monomer, or any one homopolymer selected from 2 It may be a copolymer of more than one species. More specifically, the olefin-based polymer may be a copolymer of ethylene and an alpha-olefin having 3 to 12 carbon atoms or 3 to 10 carbon atoms. [49] The alpha-olefin comonomer is propylene, 1-butene, 1-pentene, 4-methyl-1-pentene, 1-hexene, 1-heptene, 1-octene, 1-decene, 1-undecene, 1-dodecene , 1-tetradecene, 1-hexadecene, 1-itocene, norbornene, nobonadiene, ethylidene noboden, phenyl noboden, vinyl noboden, dicyclopentadiene, 1,4-butadiene, 1,5 -Pentadiene, 1,6-hexadiene, styrene, alpha-methylstyrene, divinylbenzene, and a mixture of two or more selected from the group consisting of 3-chloromethylstyrene. [50] More specifically, the olefin copolymer according to an example of the present invention may be a copolymer of ethylene and propylene, ethylene and 1-butene, ethylene and 1-hexene, ethylene and 4-methyl-1-pentene, or ethylene and 1-octene. have. [51] When the olefin-based polymer is a copolymer of ethylene and an alpha-olefin, the amount of the alpha-olefin is 80% by weight or less, more specifically 60% by weight or less, even more specifically 5% to 40% by weight based on the total weight of the copolymer. It may be weight percent. When included in the above range, it is easy to implement the above-described physical properties, [52] The olefin-based polymer according to an embodiment of the present invention having the above physical properties and constitutional characteristics is prepared through a continuous solution polymerization reaction in the presence of a metallocene catalyst composition containing at least one transition metal compound in a single reactor. Can be. Accordingly, in the olefin-based polymer according to an embodiment of the present invention, a block composed of two or more repeating units derived from any one of the monomers constituting the polymer in the polymer is connected in a linear manner is not formed. That is, the olefin-based polymer according to the present invention does not contain a block copolymer, and is selected from the group consisting of a random copolymer, an alternating copolymer, and a graft copolymer. It may be, and more specifically, may be a random copolymer. [53] Specifically, the olefin-based copolymer of the present invention can be obtained by a production method comprising the step of polymerizing an olefin-based monomer in the presence of a catalyst composition for olefin polymerization comprising a transition metal compound of Formula 1 below. [54] However, in the preparation of the olefin-based polymer according to an embodiment of the present invention, the range of the structure of the following first transition metal compound is not limited to a specific disclosed form, and all modifications and equivalents included in the spirit and scope of the present invention It should be understood to include water or substitutes. [55] [Formula 1] [56] [57] In Formula 1, [58] R 1 is hydrogen; Alkyl of 1 to 20 carbon atoms; Cycloalkyl having 3 to 20 carbon atoms; Alkenyl having 2 to 20 carbon atoms; Alkoxy having 1 to 20 carbon atoms; Aryl of 6 to 20 carbon atoms; Arylalkoxy having 7 to 20 carbon atoms; Alkylaryl having 7 to 20 carbon atoms; Or arylalkyl having 7 to 20 carbon atoms, [59] R 2a to R 2e are each independently hydrogen; halogen; Alkyl of 1 to 20 carbon atoms; Cycloalkyl having 3 to 20 carbon atoms; Alkenyl having 2 to 20 carbon atoms; Alkoxy having 1 to 20 carbon atoms; Or aryl having 6 to 20 carbon atoms, [60] R 3 is hydrogen; halogen; Alkyl of 1 to 20 carbon atoms; Cycloalkyl having 3 to 20 carbon atoms; Alkenyl having 2 to 20 carbon atoms; Aryl of 6 to 20 carbon atoms; Alkylaryl having 6 to 20 carbon atoms; Arylalkyl of 7 to 20 carbon atoms; Alkyl amido having 1 to 20 carbon atoms; Aryl amido having 6 to 20 carbon atoms; Alkylidene having 1 to 20 carbon atoms; Or halogen, alkyl having 1 to 20 carbon atoms, cycloalkyl having 3 to 20 carbon atoms, alkenyl having 2 to 20 carbon atoms, alkoxy having 1 to 20 carbon atoms and aryl having 6 to 20 carbon atoms Is phenyl, [61] R 4 to R 9 are each independently hydrogen; Silyl; Alkyl of 1 to 20 carbon atoms; Cycloalkyl having 3 to 20 carbon atoms; Alkenyl having 2 to 20 carbon atoms; Aryl of 6 to 20 carbon atoms; Alkylaryl having 7 to 20 carbon atoms; Arylalkyl of 7 to 20 carbon atoms; Or a metalloid radical of a Group 14 metal substituted with a hydrocarbyl having 1 to 20 carbon atoms; Two or more adjacent to each other among the R 6 to R 9 may be connected to each other to form a ring, [62] Q is Si, C, N, P or S, [63] M is a Group 4 transition metal, [64] X 1 and X 2 are each independently hydrogen; halogen; Alkyl of 1 to 20 carbon atoms; Cycloalkyl having 3 to 20 carbon atoms; Alkenyl having 2 to 20 carbon atoms; Aryl of 6 to 20 carbon atoms; Alkylaryl having 7 to 20 carbon atoms; Arylalkyl of 7 to 20 carbon atoms; Alkylamino of 1 to 20 carbon atoms; Arylamino having 6 to 20 carbon atoms; Or alkylidene having 1 to 20 carbon atoms. [65] [66] In an example of the present invention, in the transition metal compound of Formula 1, [67] R 1 is hydrogen; Alkyl of 1 to 20 carbon atoms; Cycloalkyl having 3 to 20 carbon atoms; Alkoxy having 1 to 20 carbon atoms; Aryl of 6 to 20 carbon atoms; Arylalkoxy having 7 to 20 carbon atoms; Alkylaryl having 7 to 20 carbon atoms; Or it may be a C7 to C20 arylalkyl, [68] R 2a to R 2e are each independently hydrogen; halogen; Alkyl of 1 to 12 carbon atoms; Cycloalkyl having 3 to 12 carbon atoms; Alkenyl having 2 to 12 carbon atoms; Alkoxy having 1 to 12 carbon atoms; Or may be phenyl, [69] R 3 is hydrogen; halogen; Alkyl of 1 to 12 carbon atoms; Cycloalkyl having 3 to 12 carbon atoms; Alkenyl having 2 to 12 carbon atoms; Aryl of 6 to 20 carbon atoms; Alkylaryl having 7 to 13 carbon atoms; Arylalkyl of 7 to 13 carbon atoms; Or halogen, alkyl having 1 to 12 carbon atoms, cycloalkyl having 3 to 12 carbon atoms, alkenyl having 2 to 12 carbon atoms, alkoxy having 1 to 12 carbon atoms, and phenyl substituted with one or more selected from the group consisting of phenyl, [70] Each of R 4 to R 9 is independently hydrogen; Alkyl of 1 to 20 carbon atoms; Cycloalkyl having 3 to 20 carbon atoms; Aryl of 6 to 20 carbon atoms; Alkylaryl having 7 to 20 carbon atoms; Or it may be a C7 to C20 arylalkyl, [71] Two or more adjacent to each other among the R 6 to R 9 may be connected to each other to form an aliphatic ring having 5 to 20 carbon atoms or an aromatic ring having 6 to 20 carbon atoms; The aliphatic ring or aromatic ring may be substituted with halogen, alkyl having 1 to 20 carbon atoms, alkenyl having 2 to 12 carbon atoms, or aryl having 6 to 12 carbon atoms, [72] Q may be Si, [73] M may be Ti, [74] X 1 and X 2 are each independently hydrogen; halogen; Alkyl of 1 to 12 carbon atoms; Cycloalkyl having 3 to 12 carbon atoms; Alkenyl having 2 to 12 carbon atoms; Aryl of 6 to 12 carbon atoms; Alkylaryl having 7 to 13 carbon atoms; Arylalkyl of 7 to 13 carbon atoms; Alkylamino of 1 to 13 carbon atoms; Arylamino having 6 to 12 carbon atoms; Alternatively, it may be an alkylidene having 1 to 12 carbon atoms. [75] [76] Further, in another example of the present invention, in the transition metal compound of Formula 1, [77] R 1 is hydrogen; Alkyl of 1 to 12 carbon atoms; Cycloalkyl having 3 to 12 carbon atoms; Alkoxy having 1 to 12 carbon atoms; Aryl of 6 to 12 carbon atoms; Arylalkoxy having 7 to 13 carbon atoms; Alkylaryl having 7 to 13 carbon atoms; Or it may be a C7 to C13 arylalkyl, [78] R 2a to R 2e are each independently hydrogen; halogen; Alkyl of 1 to 12 carbon atoms; Cycloalkyl having 3 to 12 carbon atoms; Alkenyl having 2 to 12 carbon atoms; Alkoxy having 1 to 12 carbon atoms; Or may be phenyl, [79] R 3 is hydrogen; halogen; Alkyl of 1 to 12 carbon atoms; Cycloalkyl having 3 to 12 carbon atoms; Alkenyl having 2 to 12 carbon atoms; Alkylaryl having 7 to 13 carbon atoms; Arylalkyl of 7 to 13 carbon atoms; Phenyl; Or halogen, alkyl having 1 to 12 carbon atoms, cycloalkyl having 3 to 12 carbon atoms, alkenyl having 2 to 12 carbon atoms, alkoxy having 1 to 12 carbon atoms, and phenyl substituted with one or more selected from the group consisting of phenyl, [80] Each of R 4 to R 9 is independently hydrogen; Alkyl of 1 to 12 carbon atoms; Cycloalkyl having 3 to 12 carbon atoms; Aryl of 6 to 12 carbon atoms; Alkylaryl having 7 to 13 carbon atoms; Or it may be a C7 to C13 arylalkyl, [81] Two or more adjacent to each other among the R 6 to R 9 may be connected to each other to form an aliphatic ring having 5 to 12 carbon atoms or an aromatic ring having 6 to 12 carbon atoms; [82] The aliphatic ring or aromatic ring may be substituted with halogen, alkyl having 1 to 12 carbon atoms, alkenyl having 2 to 12 carbon atoms, or aryl having 6 to 12 carbon atoms, [83] Q may be Si, [84] M may be Ti, [85] X 1 and X 2 are each independently hydrogen; halogen; An alkyl group having 1 to 12 carbon atoms; Or it may be an alkenyl having 2 to 12 carbon atoms. [86] [87] In addition, in another example of the present invention, in the transition metal compound of Formula 1, [88] The R 1 may be hydrogen or alkyl having 1 to 12 carbon atoms, [89] R 2a to R 2e are each independently hydrogen; Alkyl of 1 to 12 carbon atoms; Or it may be alkoxy having 1 to 12 carbon atoms, [90] R 3 is hydrogen; Alkyl of 1 to 12 carbon atoms; Or may be phenyl, [91] R 4 and R 5 are each independently hydrogen; Or it may be an alkyl having 1 to 12 carbon atoms, [92] The R 6 to R 9 may each independently be hydrogen or methyl, [93] Q may be Si, [94] M may be Ti, [95] Each of X 1 and X 2 may be independently hydrogen or alkyl having 1 to 12 carbon atoms. [96] [97] The compound represented by Formula 1 may specifically be any one of the compounds represented by Formulas 1-1 to 1-10 below. [98] [Formula 1-1] [99] [100] [Formula 1-2] [101] [102] [Formula 1-3] [103] [104] [Formula 1-4] [105] [106] [Formula 1-5] [107] [108] [Formula 1-6] [109] [110] [Formula 1-7] [111] [112] [Formula 1-8] [113] [114] [Formula 1-9] [115] [116] [Formula 1-10] [117] [118] [119] In addition, it may be a compound having various structures within the range defined in Chemical Formula 1. [120] The transition metal compound represented by Chemical Formula 1 has a narrow Cp-MN angle structurally because the metal sites are linked by a cyclopentadienyl ligand into which tetrahydroquinoline is introduced, and the X 1 -MX 2 angle approached by the monomer is wide. It has a characteristic to maintain. In addition, Cp, tetrahydroquinoline, nitrogen and metal sites are sequentially connected by a cyclic bond to form a more stable and rigid pentagonal ring structure. Therefore, when these compounds are activated by reacting with a cocatalyst such as methylaluminoxane or B(C 6 F 5 ) 3 and then applied to olefin polymerization, the characteristics of high activity, high molecular weight and high co-polymerization even at high polymerization temperatures are achieved. It is possible to polymerize the possessed olefin-based polymer. [121] Each of the substituents defined in the present specification will be described in detail as follows. [122] The term'hydrocarbyl group' as used herein, unless otherwise noted, is a carbon number consisting of carbon and hydrogen regardless of its structure, such as alkyl, aryl, alkenyl, alkynyl, cycloalkyl, alkylaryl or arylalkyl. It means a 1-20 monovalent hydrocarbon group. [123] The term'halogen' as used herein means fluorine, chlorine, bromine or iodine unless otherwise stated. [124] The term'alkyl' as used herein, unless otherwise stated, means a straight or branched chain hydrocarbon moiety. [125] The term “alkenyl” as used herein refers to a linear or branched alkenyl group unless otherwise stated. [126] The branched chain is alkyl having 1 to 20 carbon atoms; Alkenyl having 2 to 20 carbon atoms; Aryl of 6 to 20 carbon atoms; Alkylaryl having 7 to 20 carbon atoms; Or it may be an arylalkyl having 7 to 20 carbon atoms. [127] According to an example of the present invention, the aryl group preferably has 6 to 20 carbon atoms, and specifically, phenyl, naphthyl, anthracenyl, pyridyl, dimethylanilinyl, anisolyl, and the like, but are not limited thereto. [128] The alkylaryl group means an aryl group substituted by the alkyl group. [129] The arylalkyl group refers to an alkyl group substituted by the aryl group. [130] The ring (or heterocyclic group) refers to a monovalent aliphatic or aromatic hydrocarbon group having 5 to 20 ring atoms and including one or more hetero atoms, and may be a single ring or a condensed ring of two or more rings. In addition, the heterocyclic group may or may not be substituted with an alkyl group. Examples of these include indoline, tetrahydroquinoline, and the like, but the present invention is not limited thereto. [131] The alkyl amino group refers to an amino group substituted by the alkyl group, and includes a dimethylamino group and a diethylamino group, but are not limited thereto. [132] According to an embodiment of the present invention, the aryl group preferably has 6 to 20 carbon atoms, and specifically, phenyl, naphthyl, anthracenyl, pyridyl, dimethylanilinyl, anisolyl, and the like, but are limited to these examples. no. [133] [134] The transition metal compound of Formula 1 and the transition metal compound of Formula 2 have a density of 0.90 g/cc or less, specifically 0.85 g/due, because of the structural characteristics of the catalyst, not only low-density polyethylene but also a large amount of alpha-olefins can be introduced. It is possible to prepare a low-density polyolefin copolymer having a density of from cc to 0.89 g/cc, more specifically from 0.855 g/cc to 0.89 g/cc. [135] The transition metal compound of Formula 1 may be prepared from a ligand compound represented by Formula 2. [136] [Formula 2] [137] [138] In Chemical Formula 2, [139] R 1 and R 10 are each independently hydrogen; Alkyl of 1 to 20 carbon atoms; Cycloalkyl having 3 to 20 carbon atoms; Alkenyl having 2 to 20 carbon atoms; Alkoxy having 1 to 20 carbon atoms; Aryl of 6 to 20 carbon atoms; Arylalkoxy having 7 to 20 carbon atoms; Alkylaryl having 7 to 20 carbon atoms; Or arylalkyl having 7 to 20 carbon atoms, [140] R 2a to R 2e are each independently hydrogen; halogen; Alkyl of 1 to 20 carbon atoms; Cycloalkyl having 3 to 20 carbon atoms; Alkenyl having 2 to 20 carbon atoms; Alkoxy having 1 to 20 carbon atoms; Or aryl having 6 to 20 carbon atoms, [141] R 3 is hydrogen; halogen; Alkyl of 1 to 20 carbon atoms; Cycloalkyl having 3 to 20 carbon atoms; Alkenyl having 2 to 20 carbon atoms; Aryl of 6 to 20 carbon atoms; Alkylaryl having 6 to 20 carbon atoms; Arylalkyl of 7 to 20 carbon atoms; Alkyl amido having 1 to 20 carbon atoms; Aryl amido having 6 to 20 carbon atoms; Alkylidene having 1 to 20 carbon atoms; Or halogen, alkyl having 1 to 20 carbon atoms, cycloalkyl having 3 to 20 carbon atoms, alkenyl having 2 to 20 carbon atoms, alkoxy having 1 to 20 carbon atoms and aryl having 6 to 20 carbon atoms Is phenyl, [142] R 4 to R 9 are each independently hydrogen; Silyl; Alkyl of 1 to 20 carbon atoms; Cycloalkyl having 3 to 20 carbon atoms; Alkenyl having 2 to 20 carbon atoms; Aryl of 6 to 20 carbon atoms; Alkylaryl having 7 to 20 carbon atoms; Arylalkyl of 7 to 20 carbon atoms; Or a metalloid radical of a Group 14 metal substituted with a hydrocarbyl having 1 to 20 carbon atoms; Two or more adjacent to each other among the R 6 to R 9 may be connected to each other to form a ring, [143] Q is Si, C, N, P or S. [144] In the ligand compound, the definition of R 1 to R 9 of the compound represented by Formula 2 may be the same as the definition of the compound represented by Formula 1 which is a transition metal compound. [145] The compound represented by Formula 2 may be specifically any one of the compounds represented by Formulas 2-1 to 2-10 below. [146] [Formula 2-1] [147] [148] [Formula 2-2] [149] [150] [Formula 2-3] [151] [152] [Formula 2-4] [153] [154] [Formula 2-5] [155] [156] [Formula 2-6] [157] [158] [Formula 2-7] [159] [160] [Formula 2-8] [161] [162] [Formula 2-9] [163] [164] [Chemical Formula 2-10] [165] [166] The ligand compound represented by Chemical Formula 2 of the present invention can be prepared as shown in Scheme 1 below. [167] [Scheme 1] [168] [169] In Scheme 1, R 1 to R 10 and Q are as defined in Formula 2. [170] [171] Specifically, the method for preparing the ligand compound of Formula 2 is: a) reacting a compound represented by the following [Formula 4] with a compound represented by the following [Formula 5] to prepare a compound represented by the following [Formula 3] step; And b) reacting a compound represented by the following [Chemical Formula 3] with a compound represented by the following [Chemical Formula 6] to prepare a compound represented by the following [Chemical Formula 2]. [172] [Formula 4] [173] [174] [Formula 5] [175] [176] [Formula 3] [177] [178] [179] [Formula 6] [180] R 1 R 10 NH [181] [Formula 2] [182] [183] In the above formula, R 1 to R 10 and Q are as defined in Formula 2. [184] In the step of preparing a compound represented by the following [Chemical Formula 3] by reacting a) a compound represented by the following [Chemical Formula 4] with a compound represented by the following [Chemical Formula 5], the compound represented by Formula 4 and the formula The compound represented by 5 may be reacted in a molar ratio of 1: 0.8 to 1: 5.0, specifically in a molar ratio of 1: 0.9 to 1: 4.0, and more specifically in a molar ratio of 1:1 to 1:3.0. [185] In addition, the reaction may be carried out for 1 hour to 48 hours at a temperature range of -80 ℃ to 140 ℃. [186] Meanwhile, b) in the step of preparing a compound represented by the following [Chemical Formula 2] by reacting a compound represented by the following [Chemical Formula 3] with a compound represented by the following [Chemical Formula 6], the compound represented by Formula 3 and the The compound represented by Formula 6 may be reacted in a molar ratio of 1: 0.8 to 1: 5.0, specifically 1: 0.9 to 1: 4.5, and more specifically 1:1 to 1: 4.0. [187] [188] The compound represented by Chemical Formula 4 can be prepared as shown in Scheme 2 below. [189] [Scheme 2] [190] [191] In Reaction Scheme 2, R 4 to R 9 are as defined in Formula 1 or Formula 2. [192] The transition metal compound represented by Formula 1 of the present invention can be prepared as shown in Scheme 3 below by using the ligand compound represented by Formula 2. [193] [Scheme 3] [194] [195] In the above formula, R 1 to R 10 , Q, M, X 1 and X 2 are as defined in Formula 1 or Formula 2. [196] [197] According to an embodiment of the present invention, the transition metal compound represented by Formula 1 may be in a form in which a Group 4 transition metal is coordinated with the compound represented by Formula 2 as a ligand. [198] Specifically, as in Reaction Scheme 3, the compound represented by Formula 2 is reacted with a compound represented by Formula 7 below and an organolithium compound as a metal precursor, and a Group 4 transition metal using the compound represented by Formula 2 as a ligand This coordination bonded transition metal compound of Formula 1 can be obtained. [199] [200] [Formula 2] [201] [202] [Formula 7] [203] M(X 1 X 2 ) 2 [204] [Formula 1] [205] [206] In the above formula, R 1 to R 10 , Q, M, X 1 and X 2 are as defined in Chemical Formula 1. [207] In Reaction Scheme 3, the organolithium compound is, for example, n-butyllithium, sec-butyllithium, methyllithium, ethyllithium, isopropyllithium, cyclohexyllithium, allyllithium, vinyllithium, phenyllithium, and benzyllithium. One or more types may be selected from the group consisting of. [208] The compound represented by Formula 2 and the compound represented by Formula 7 may be mixed in a molar ratio of 1: 0.8 to 1: 1.5, preferably 1: 1.0 to 1: 1.1. [209] In addition, the organolithium compound may be used in an amount of 180 to 250 parts by weight based on 100 parts by weight of the compound represented by Formula 2. [210] The reaction may be carried out for 1 hour to 48 hours at a temperature range of -80 ℃ to 140 ℃. [211] The transition metal compounds of Formula 1 are mixed alone or in the form of a composition further comprising at least one of the cocatalyst compounds represented by the following Formulas 8, 9, and 10 in addition to the transition metal compound of Formula 1 , It can be used as a catalyst for polymerization reaction. [212] [Formula 8] [213] - [Al (R 11 ) -O] a - [214] [Formula 9] [215] A(R 11 ) 3 [216] [Formula 10] [217] [LH] + [W (D) 4 ] - or [L] + [W (D) 4 ] - [218] In Formulas 8 to 10, [219] R 11 may be the same or different from each other, and each independently selected from the group consisting of halogen, hydrocarbyl having 1 to 20 carbon atoms, and hydrocarbyl having 1 to 20 carbon atoms substituted with halogen, [220] A is aluminum or boron, [221] D is each independently an aryl having 6 to 20 carbon atoms or alkyl having 1 to 20 carbon atoms in which one or more hydrogen atoms may be substituted with a substituent, wherein the substituent is halogen, a hydrocarbyl having 1 to 20 carbon atoms, an alkoxy having 1 to 20 carbon atoms And at least one selected from the group consisting of aryloxy having 6 to 20 carbon atoms, [222] H is a hydrogen atom, [223] L is a neutral or cationic Lewis acid, [224] W is a group 13 element, [225] a is an integer of 2 or more. [226] Examples of the compound represented by Chemical Formula 8 include alkyl aluminoxanes such as methyl aluminoxane (MAO), ethyl aluminoxane, isobutyl aluminoxane, and butyl aluminoxane, and two or more of the alkyl aluminoxanes are mixed. And modified alkylaluminoxane, specifically methylaluminoxane, and modified methylaluminoxane (MMAO). [227] Examples of the compound represented by Formula 9 include trimethyl aluminum, triethyl aluminum, triisobutyl aluminum, tripropyl aluminum, tributyl aluminum, dimethyl chloro aluminum, triisopropyl aluminum, tri-s-butyl aluminum, tricyclopentyl aluminum , Tripentyl aluminum, triisopentyl aluminum, trihexyl aluminum, trioctyl aluminum, ethyl dimethyl aluminum, methyl diethyl aluminum, triphenyl aluminum, tri-p-tolyl aluminum, dimethyl aluminum methoxide, dimethyl aluminum ethoxide, trimethyl Boron, triethyl boron, triisobutyl boron, tripropyl boron, tributyl boron and the like are included, and specifically, may be selected from trimethyl aluminum, triethyl aluminum, and triisobutyl aluminum. [228] Examples of the compound represented by Chemical Formula 10 include triethylammonium tetraphenylboron, tributylammonium tetraphenylboron, trimethylammonium tetraphenylboron, tripropylammonium tetraphenylboron, trimethylammonium tetra(p-tolyl)boron, trimethylammonium tetra (o,p-dimethylphenyl) boron, tributyl ammonium tetra (p-trifluoromethylphenyl) boron, trimethyl ammonium tetra (p-trifluoromethylphenyl) boron, tributyl ammonium tetrapentafluorophenyl boron, N,N -Diethylanilinium tetraphenyl boron, N,N-diethylanilinium tetrapentafluorophenyl boron, diethyl ammonium tetrapentafluorophenyl boron, triphenylphosphonium tetraphenyl boron, trimethylphosphonium tetraphenyl boron, dimethyl Anilinium tetrakis (pentafluorophenyl) borate, triethylammonium tetraphenylaluminum, tributylammonium tetraphenylaluminum, trimethylammonium tetraphenylaluminum, tripropylammonium tetraphenylaluminum, trimethylammonium tetra(p-tolyl)aluminum, tri Propyl ammonium tetra (p-tolyl) aluminum, triethyl ammonium tetra (o,p-dimethylphenyl) aluminum, tributyl ammonium tetra (p-trifluoromethylphenyl) aluminum, trimethyl ammonium tetra (p-trifluoromethylphenyl) aluminum , Tributylammonium tetrapentafluorophenylaluminum, N,N-diethylanilinium tetraphenylaluminum, N,N-diethylanilinium tetrapentafluorophenylaluminum, diethylammonium tetrapentatentraphenylaluminum, triphenyl Phosphonium tetraphenyl aluminum, trimethylphosphonium tetraphenyl aluminum, tripropyl ammonium tetra (p-tolyl) boron, triethyl ammonium tetra (o,p-dimethylphenyl) boron, triphenylcarbonium tetra (p-trifluoromethylphenyl) ) Boron or triphenylcarbonium tetrapentafluorophenyl boron, and the like. [229] The catalyst composition, as a first method, comprises: 1) contacting the transition metal compound represented by Formula 1 with the compound represented by Formula 8 or Formula 9 to obtain a mixture; And 2) adding the compound represented by Formula 10 to the mixture. [230] In addition, the catalyst composition may be prepared by contacting the compound represented by Formula 8 with the transition metal compound represented by Formula 1 as a second method. [231] In the case of the first method of the method for preparing the catalyst composition, the molar ratio of the transition metal compound represented by Formula 1 / the compound represented by Formula 8 or Formula 9 may be 1/5,000 to 1/2, specifically It may be 1/1,000 to 1/10, and more specifically 1/500 to 1/20. When the molar ratio of the transition metal compound represented by Formula 1/the compound represented by Formula 8 or Formula 9 exceeds 1/2, the amount of the alkylating agent is very small, so that the alkylation of the metal compound does not proceed completely. If the molar ratio is less than 1/5,000, the alkylation of the metal compound is performed, but there is a problem in that the activation of the alkylated metal compound is not completely achieved due to a side reaction between the remaining excess alkylating agent and the activator, which is the compound of Formula 10. . In addition, the molar ratio of the transition metal compound represented by Formula 1 / the compound represented by Formula 10 may be 1/25 to 1, specifically 1/10 to 1, and more specifically 1/5 to May be 1. When the molar ratio of the transition metal compound represented by Chemical Formula 1 to the compound represented by Chemical Formula 10 exceeds 1, the amount of the activator is relatively small, and thus the activation of the metal compound is not completely performed, and thus the activity of the catalyst composition is generated. When the molar ratio is less than 1/25, activation of the metal compound is completely achieved, but the unit cost of the catalyst composition may not be economical or the purity of the resulting polymer may be reduced with an excess amount of activator remaining. [232] In the case of the second method of the method for preparing the catalyst composition, the molar ratio of the transition metal compound represented by Formula 1 / the compound represented by Formula 8 may be 1/10,000 to 1/10, and specifically 1/5,000 It may be to 1/100, and more specifically, it may be 1/3,000 to 1/500. When the molar ratio exceeds 1/10, the amount of the activator is relatively small, so that the activation of the metal compound may not be completed, and thus the activity of the resulting catalyst composition may decrease. Is completely achieved, but the unit cost of the catalyst composition may not be economical or the purity of the resulting polymer may be degraded with an excess amount of activator remaining. [233] When preparing the catalyst composition, a hydrocarbon solvent such as pentane, hexane, or heptane, or an aromatic solvent such as benzene or toluene may be used as the reaction solvent. [234] In addition, the catalyst composition may include the transition metal compound and the cocatalyst compound in a form supported on a carrier. [235] The carrier may be used without particular limitation as long as it is used as a carrier in a metallocene catalyst. Specifically, the carrier may be silica, silica-alumina or silica-magnesia, and any one or a mixture of two or more of them may be used. [236] Among these, when the carrier is silica, since the functional groups of the silica carrier and the metallocene compound of Formula 1 chemically form bonds, there is almost no catalyst released from the surface during the olefin polymerization process. As a result, it is possible to prevent the occurrence of fouling in which the reactor wall or polymer particles are entangled during the production process of the olefin-based polymer. In addition, the olefin-based polymer produced in the presence of a catalyst including the silica carrier has excellent particle shape and apparent density of the polymer. [237] More specifically, the carrier may be high-temperature dried silica or silica-alumina including a siloxane group having high reactivity on the surface through a method such as high-temperature drying. [238] The carrier may further include an oxide, carbonate, sulfate or nitrate component such as Na 2 O, K 2 CO 3 , BaSO 4 or Mg(NO 3 ) 2 . [239] The polymerization reaction for polymerizing the olefinic monomer may be performed by a conventional process applied to polymerization of the olefin monomer, such as continuous solution polymerization, bulk polymerization, suspension polymerization, slurry polymerization, or emulsion polymerization. [240] The polymerization reaction of the olefin monomer may be carried out under an inert solvent, and examples of the inert solvent include benzene, toluene, xylene, cumene, heptane, cyclohexane, methylcyclohexane, methylcyclopentane, n-hexane, 1-hexene, 1-octene may be mentioned, but not limited thereto. [241] The polymerization of the olefin-based polymer may be carried out by reacting at a temperature of about 25° C. to about 500° C. and a pressure of about 1 kgf/cm 2 to about 100 kgf/cm 2 . [242] Specifically, the polymerization of the polyolefin may be performed at a temperature of about 25°C to about 500°C, specifically 80°C to 250°C, more preferably 100°C to 200°C. In addition, the reaction pressure during polymerization is 1 kgf/cm 2 to 150 kgf/cm 2 , preferably 1 kgf/cm 2 to 120 kgf/cm 2 , more preferably 5 kgf/cm 2 to 100 kgf/cm 2 Can be [243] [244] Since the olefin-based polymer of the present invention has improved physical properties, it is used for blow molding and extrusion in various fields and uses such as materials for automobiles, wires, toys, textiles, medical, etc. It is useful for molding or injection molding, and can be particularly useful for automobiles that require excellent impact strength. [245] In addition, the olefin-based polymer of the present invention can be usefully used in the production of a molded article. [246] The molded article may be specifically a blow molded article, an inflation molded article, a cast molded article, an extrusion laminate molded article, an extrusion molded article, a foam molded article, an injection molded article, a sheet, a film, a fiber, a monofilament, or a nonwoven fabric. Mode for carrying out the invention [247] Example [248] Hereinafter, embodiments of the present invention will be described in detail so that those of ordinary skill in the art may easily implement the present invention. However, the present invention may be implemented in various different forms, and is not limited to the embodiments described herein. [249] [250] Preparation Example 1: Preparation of transition metal compound 1 [251] [252] [253] Preparation of chloro- 1-(1,2-dimethyl-3H- benzo[b]cyclopenta[d]thiophen- 3-yl)-1,1-( methyl )(phenyl)silane [254] In a 250 ml Schlenk flask, 1, 2-dimethyl-3H-benzo[b]cyclopenta[d]thiophene 10 g (1.0 eq, 49.925 mmol) and THF 100 ml were added, and n-BuLi 22 ml (1.1 eq, 54.918 mmol, 2.5 M in hexane) was added dropwise at -30°C, followed by stirring at room temperature for 3 hours. The stirred Li-complex THF solution was cannulated into a Schlenk flask containing 8.1 ml (1.0 eq, 49.925 mmol) of dichloro(methyl)(phenyl)silane and 70 ml of THF at -78°C, and then stirred at room temperature overnight. After stirring, vacuum drying, and extracted with 100 ml of hexane. [255] [256] Preparation of N- tert -butyl-1-(1,2-dimethyl-3H- benzo[b]cyclopenta[d]thiophen- 3-yl)-1,1-( methyl )(phenyl)silanamine [257] T-BuNH in 100 ml of the extracted chloro-1-(1,2-dimethyl-3H-benzo[b]cyclopenta[d]thiophen-3-yl)-1,1-(methyl)(phenyl)silane hexane solution 2 42 ml (8 eq, 399.4 mmol) was added at room temperature, followed by stirring at room temperature overnight. After stirring and vacuum drying, the mixture was extracted with 150 ml of hexane. After drying the solvent, 13.36 g (68%, dr = 1:1) of a yellow solid was obtained. [258] 1 H NMR (CDCl 3 , 500 MHz): δ 7.93 (t, 2H), 7.79 (d,1H), 7.71 (d,1H), 7.60 (d, 2H), 7.48 (d, 2H), 7.40~7.10 (m, 10H, aromatic), 3.62 (s, 1H), 3.60 (s, 1H), 2.28 (s, 6H), 2.09 (s, 3H), 1.76 (s, 3H), 1.12 (s, 18H), 0.23 (s, 3H), 0.13 (s, 3H) [259] [260] In a 100 ml Schlenk flask, 4.93 g (12.575 mmol, 1.0 eq) of the ligand compound of Formula 2-4 and 50 ml (0.2M) of toluene were added, and 10.3 ml (25.779 mmol, 2.05 eq, 2.5M in hexane) of n-BuLi was added. Was added dropwise at -30°C, followed by stirring at room temperature overnight. After stirring, MeMgBr 12.6 ml (37.725 mmol, 3.0 eq, 3.0 M in diethyl ether) was added dropwise, then TiCl 4 13.2 ml (13.204 mmol, 1.05 eq, 1.0 M in toluene) was added in order and stirred at room temperature overnight. . After stirring and vacuum drying, extraction was performed with 150 ml of hexane, and after removing the solvent to 50 ml, 4 ml of DME (37.725 mmol, 3.0 eq) was added dropwise, followed by stirring at room temperature overnight. After vacuum drying again, it was extracted with 150 ml of hexane. After drying the solvent, 2.23 g (38%, dr = 1:0.5) of a brown solid was obtained. [261] 1 H NMR (CDCl 3 , 500 MHz): δ 7.98 (d, 1H), 7.94 (d, 1H), 7.71 (t, 6H), 7.50~7.30 (10H), 2.66 (s, 3H), 2.61 (s , 3H), 2.15 (s, 3H), 1.62 (s, 9H), 1.56 (s, 9H), 1.53 (s, 3H), 0.93 (s, 3H), 0.31 (s, 3H), 0.58 (s, 3H), 0.51 (s, 3H), -0.26 (s, 3H), -0.39 (s, 3H) [262] [263] Preparation Example 2: Preparation of transition metal compound 2 [264] [265] (1) 8-(2,3,4,5-tetramethyl-1,3-cyclopentadienyl)-1,2,3,4-tetrahydroquinoline (8-(2,3,4,5- Preparation of Tetramethyl-1,3-cyclopentadienyl)-1,2,3,4-tetrahydroquinoline) [266] (i) Preparation of lithium carbamate [267] 1,2,3,4-tetrahydroquinoline (13.08 g, 98.24 mmol) and diethyl ether (150 mL) were added to a Schlenk flask. The Schlenk flask was immersed in a -78°C low temperature bath made of dry ice and acetone and stirred for 30 minutes. Then, n-BuLi (39.3 mL, 2.5 M, 98.24 mmol) was injected into a syringe under a nitrogen atmosphere, and a pale yellow slurry was formed. Then, after the flask was stirred for 2 hours, the temperature of the flask was raised to room temperature while removing the generated butane gas. The flask was again immersed in a -78°C low temperature bath to lower the temperature, and then CO 2 gas was added. As the carbon dioxide gas was added, the slurry disappeared and became a transparent solution. The flask was connected to a bubbler and the temperature was raised to room temperature while removing carbon dioxide gas. After that, excess CO 2 gas and solvent were removed under vacuum . After transferring the flask to a dry box, pentane was added, stirred vigorously, and filtered to obtain a white solid compound, lithium carbamate. The white solid compound is coordinated with diethyl ether. At this time, the yield is 100%. [268] 1 H NMR(C 6 D 6 , C 5 D 5 N): δ 1.90 (t, J = 7.2 Hz, 6H, ether), 1.50 (br s, 2H, quin-CH 2 ), 2.34 (br s, 2H , quin-CH 2 ), 3.25 (q, J = 7.2 Hz, 4H, ether), 3.87 (br, s, 2H, quin-CH 2 ), 6.76 (br d, J = 5.6 Hz, 1H, quin-CH ) ppm [269] 13 C NMR (C 6 D 6 ): δ 24.24, 28.54, 45.37, 65.95, 121.17, 125.34, 125.57, 142.04, 163.09 (C=O) ppm [270] (ii) Preparation of 8-(2,3,4,5-tetramethyl-1,3-cyclopentadienyl)-1,2,3,4-tetrahydroquinoline [271] [272] The lithium carbamate compound (8.47 g, 42.60 mmol) prepared in step (i) was added to a Schlenk flask. Then, tetrahydrofuran (4.6 g, 63.9 mmol) and 45 mL of diethyl ether were sequentially added. After immersing the Schlenk flask in a -20°C low temperature bath made of acetone and a small amount of dry ice and stirring for 30 minutes, t-BuLi (25.1 mL, 1.7 M, 42.60 mmol) was added. At this time, the color of the reaction mixture turned red. The mixture was stirred for 6 hours while maintaining -20°C. CeCl 3 · 2LiCl solution (129 mL, 0.33 M, 42.60 mmol) dissolved in tetrahydrofuran and tetramethylcyclopentinone (5.89 g, 42.60 mmol) were mixed in a syringe, and then introduced into a flask under a nitrogen atmosphere. The temperature of the flask was slowly raised to room temperature, and after 1 hour, the thermostat was removed and the temperature was maintained at room temperature. Then, after adding water (15 mL) to the flask, ethyl acetate was added thereto, followed by filtration to obtain a filtrate. After transferring the filtrate to a separatory funnel, hydrochloric acid (2 N, 80 mL) was added and shaken for 12 minutes. Then, a saturated aqueous sodium hydrogen carbonate solution (160 mL) was added to neutralize and the organic layer was extracted. Anhydrous magnesium sulfate was added to the organic layer to remove moisture and filtered. The filtrate was taken and the solvent was removed. The obtained filtrate was purified by column chromatography using hexane and ethyl acetate (v/v, 10:1) solvent to obtain a yellow oil. The yield was 40%. [273] 1 H NMR (C 6 D 6 ): δ 1.00 (br d, 3H, Cp-CH 3 ), 1.63-1.73 (m, 2H, quin-CH 2 ), 1.80 (s, 3H, Cp-CH 3 ), 1.81 (s, 3H, Cp-CH 3 ), 1.85 (s, 3H, Cp-CH 3 ), 2.64 (t, J = 6.0 Hz, 2H, quin-CH 2 ), 2.84-2.90 (br, 2H, quin -CH 2 ), 3.06 (br s, 1H, Cp-H), 3.76 (br s, 1H, NH), 6.77 (t, J = 7.2 Hz, 1H, quin-CH), 6.92 (d, J = 2.4 Hz, 1H, quin-CH), 6.94 (d, J = 2.4 Hz, 1H, quin-CH) ppm [274] [275] (2) [(1,2,3,4 -tetrahydroquinolin- 8-yl) tetramethyl cyclopentadienyl - η 5 , κ -N] titanium dimethyl ([(1,2,3,4- Tetrahydroquinolin - Preparation of 8-yl)tetramethylcyclopentadienyl-eta5,kapa-N]titanium dimethyl ) [276] [277] (i) [(1,2,3,4-tetrahydroquinolin-8-yl)tetramethylcyclopentadienyl- η 5 , κ -N] Preparation of dilithium compound [278] 8-(2,3,4,5-tetramethyl-1,3-cyclopentadienyl)-1,2,3,4-tetrahydroquinoline (8.07 g) prepared through step (1) in a dry box , 32.0 mmol) and 140 mL of diethyl ether were placed in a round flask, and the temperature was lowered to -30°C, and n-BuLi (17.7 g, 2.5 M, 64.0 mmol) was slowly added while stirring. The reaction was carried out for 6 hours while raising the temperature to room temperature. After that, it was filtered while washing several times with diethyl ether, and the solid was obtained. Vacuum was applied to remove the remaining solvent to obtain a yellow solid dilithium compound (9.83 g). The yield was 95%. [279] 1 H NMR(C 6 D 6 , C 5 D 5 N): δ 2.38 (br s, 2H, quin-CH 2 ), 2.53 (br s, 12H, Cp-CH 3 ), 3.48 (br s, 2H, quin-CH 2 ), 4.19 (br s, 2H, quin-CH 2 ), 6.77 (t, J = 6.8 Hz, 2H, quin-CH), 7.28 (br s, 1H, quin-CH), 7.75 (brs , 1H, quin-CH) ppm [280] [281] (ii) (1,2,3,4-tetrahydroquinolin-8-yl)tetramethylcyclopentadienyl- η 5 , κ -N] Preparation of titanium dimethyl [282] In a dry box, TiCl 4 ·DME (4.41 g, 15.76 mmol) and diethyl ether (150 mL) were placed in a round flask, and MeLi (21.7 mL, 31.52 mmol, 1.4 M) was slowly added while stirring at -30°C. After stirring for 15 minutes, the [(1,2,3,4-tetrahydroquinolin-8-yl) tetramethylcyclopentadienyl- η 5 , κ -N] dilithium compound prepared in step (i) ( 5.30 g, 15.76 mmol) was added to the flask. The mixture was stirred for 3 hours while raising the temperature to room temperature. After the reaction was completed, vacuum was applied to remove the solvent, dissolved in pentane, and filtered to obtain a filtrate. When vacuum was applied to remove pentane, a dark brown compound (3.70 g) was obtained. The yield was 71.3%. [283] 1 H NMR(C 6 D 6 ): δ 0.59 (s, 6H, Ti-CH 3 ), 1.66 (s, 6H, Cp-CH 3 ), 1.69 (br t, J = 6.4 Hz, 2H, quin-CH 2 ), 2.05 (s, 6H, Cp-CH 3 ), 2.47 (t, J = 6.0 Hz, 2H, quin-CH 2 ), 4.53 (m, 2H, quin-CH 2 ), 6.84 (t, J = 7.2 Hz, 1H, quin-CH), 6.93 (d, J =7.6 Hz, quin-CH), 7.01 (d, J =6.8 Hz, quin-CH) ppm [284] 13 C NMR (C 6 D 6 ): δ 12.12, 23.08, 27.30, 48.84, 51.01, 119.70, 119.96, 120.95, 126.99, 128.73, 131.67, 136.21 ppm [285] [286] Example 1 [287] After filling a 1.5L autoclave continuous process reactor with hexane solvent (5 kg/h) and 1-butene (1.2 kg/h), the temperature at the top of the reactor was preheated to 150° C. Triisobutylaluminum compound (33.6 mmol/min) ), as a catalyst, the transition metal compound 1 (0.3 μmol/min) obtained in Preparation Example 1, and the dimethylanilinium tetrakis (pentafluorophenyl) borate cocatalyst (0.070 μmol/min) were simultaneously introduced into the reactor. , Ethylene (0.87 kg/h) was added into the autoclave reactor and maintained at 150° C. for 30 minutes or more in a continuous process at a pressure of 89 bar to proceed with a copolymerization reaction, followed by drying for 12 hours or more, and then physical properties. Was measured. [288] [289] Examples 2 to 10 [290] As shown in Table 2 below, a copolymer was prepared in the same manner as in Example 1, except that the content of each material was different. [291] [292] Comparative Examples 1 to 3 [293] In the same manner as in Example 1, except that the transition metal compound 2 obtained in Preparation Example 2 was used as a catalyst in place of the transition metal compound 1, and the content of each material was changed as shown in Table 1 below. A copolymer was prepared. [294] [295] Comparative Example 4 [296] In Comparative Example 4, LC170 of LG Chem was purchased and used. [297] [298] Comparative Example 5 [299] Comparative Example 5 was used by purchasing Dow's EG8003. [300] [301] [Table 2] Catalyst (μmol/min) Cocatalyst (μmol/min) TiBAl(mmol/min) Ethylene (kg/h) 1-butene (kg/h) 1-octene (kg/h) Reaction temperature(℃) Example 1 0.30 0.90 0.070 0.87 1.20 - 185 Example 2 1.05 0.6 1.3 0.87 0.35 - 184 Example 3 0.75 0.6 1.05 0.87 0.25 - 156 Example 4 0.87 5.0 0.9 0.87 0.5 - 190 Example 5 0.25 0.75 0.05 0.87 1.2 - 194 Example 6 0.45 1.35 0.05 0.87 1.2 - 177 Example 7 0.33 0.99 0.05 0.87 1.2 - 185 Example 8 0.30 0.90 0.05 0.87 - 1.50 177 Example 9 0.30 0.90 0.070 0.87 - 1.00 175 Example 10 0.30 0.90 0.070 0.87 - 1.40 182 Comparative Example 1 0.90 2.70 0.060 0.87 0.58 - 160 Comparative Example 2 1.95 0.06 0.85 0.87 0.65 - 170.3 Comparative Example 3 1.56 0.6 0.65 0.87 0.52 - 145.8 [302] Experimental Example 1 [303] The physical properties of the copolymers of Examples 1 to 10 and Comparative Examples 1 to 5 were evaluated according to the following method, and are shown in Table 3 below. [304] 1) Density of polymer [305] Measured by ASTM D-792. [306] 2) Melt Index (MI) of polymer [307] It was measured by ASTM D-1238 (Condition E, 190°C, 2.16 Kg load). [308] 3) Melting temperature of polymer (Tm) [309] It was obtained using a differential scanning calorimeter (DSC: Differential Scanning Calorimeter 6000) manufactured by PerKinElmer. That is, after the temperature was increased to 200°C, the temperature was maintained at that temperature for 1 minute, then decreased to -100°C, and the temperature was increased again to set the top of the DSC curve as the melting point. At this time, the rate of temperature rise and fall is 10°C/min, and the melting point is obtained while the second temperature rises. [310] 4) Weight average molecular weight (Mw, g/mol) and molecular weight distribution (MWD) [311] The number average molecular weight (Mn) and the weight average molecular weight (Mw) were respectively measured using gel permeation chromatography (GPC), and the molecular weight distribution was calculated by dividing the weight average molecular weight by the number average molecular weight. [312] -Column: PL Olexis [313] -Solvent: Trichlorobenzene (TCB) [314] -Flow rate: 1.0 ml/min [315] -Sample concentration: 1.0 mg/ml [316] -Injection volume: 200 µl [317] -Column temperature: 160℃ [318] -Detector: Agilent High Temperature RI detector [319] -Standard: Polystyrene (corrected by 3rd order function) [320] 5) Measurement of hardness (shore A) [321] The hardness was measured according to ASTM D2240 standard using GC610 STAND for Durometer of TECLOCK and Shore hardness tester Type A of Mitutoyo. [322] [323] [Table 3] Density (g/mL) MI(g/10min) Tm(℃) Mw MWD %[1-C8](wt%) %[1-C4](wt%) Shore A hardness Example 1 0.868 3.6 53.6 77074 2.23 - 27.3 67.5 Example 2 0.863 5.7 38.2 69738 2.09 - 34.9 48.2 Example 3 0.862 1.2 36.9 112552 2.27 - 35.0 47.3 Example 4 0.867 8.1 49.4 62633 2.05 - 29.6 63.3 Example 5 0.866 2.7 47.0 86341 2.04 - 28.3 59.5 Example 6 0.860 14 35.0 56456 2.10 - 32.4 36.6 Example 7 0.865 4.9 46.0 69268 2.22 - 29.0 56.0 Example 8 0.874 0.26 67.7 154352 2.83 31.0 - 77.2 Example 9 0.880 0.3 76.9 132916 2.12 25.6 - 85.4 Example 10 0.869 1.4 64.2 109583 2.07 31.5 - 73.0 Comparative Example 1 0.868 2.7 48.7 72329 2.32 - 25.4 65.6 Comparative Example 2 0.864 6.3 36.2 66491 2.29 - 32.1 47.5 Comparative Example 3 0.862 1.3 33.9 106205 2.29 - 32.9 45.4 Comparative Example 4 0.867 1.1 53.1 104495 2.34 35.6 - 69.4 Comparative Example 5 0.884 1.03 84.3 115866 2.03 26.0 - 82.7 [324] The olefin-based polymer according to the present invention is a low-density olefin-based polymer and has an increased melting temperature and hardness at the same density as the conventional olefin-based polymer, and thus exhibits improved anti-blocking properties. [325] In Table 3, the olefin-based polymers of Example 1 and Comparative Example 1, the olefin-based polymers of Example 2 and Comparative Example 2, and the olefin-based polymers of Example 3 and Comparative Example 3 showing the same or similar density were paired. Compared to each other, the olefin-based polymers (copolymers of ethylene and 1-butene) of Examples 1 to 3 are the same or the same as those of the corresponding olefin-based polymers (copolymers of ethylene and 1-butene) of Comparative Examples 1 to 3, respectively. It can be seen that when having a similar density, it exhibits a higher melting temperature (Tm) and hardness (Shore A). [326] Similarly, when comparing Example 10 and Comparative Example 4, and Example 9 and Comparative Example 5, the olefin-based polymer of Example 10 (a copolymer of ethylene and 1-octene) was the olefin-based polymer of Comparative Example 4 (ethylene and It can be seen that it exhibits higher melting temperature (Tm) and hardness (Shore A) when it has a similar density compared to the copolymer of 1-octene), and the olefin polymer of Example 9 (copolymer of ethylene and 1-octene ) Compared to the olefin-based polymer of Comparative Example 5 (a copolymer of ethylene and 1-octene) when it has a similar density, it can be seen that it exhibits a higher hardness (Shore A). [327] [328] Experimental Example 2 [329] 50 g of each of the copolymers prepared in Examples 2 and 3, and Comparative Examples 2 and 3 were taken, placed in an 8 cm x 10 cm zipper bag, and a hole was punched out with a needle to remove air and then pressurized. A zipper bag was placed in the central part away from the bottom of the chamber, and a load was applied with 2 kg weight x 2 pieces on top. The chamber temperature program was operated and left at 35°C for 7 hours, -5°C for 5 hours, and 0°C for 5 hours, and 0°C was maintained. After that, the degree of blocking was checked. [330] The evaluation criteria are shown in Table 4 below, and the experimental results are shown in Table 5 below. [331] [Table 4] Rating state 0 Spills when the zipper bag is opened and turned over One Loosening in the process of removing zipper 2 The lump from the zipper bag disintegrates within 20 seconds 3 Disintegrates when pressed by hand 4 Disintegrates when pressed with strong force 5 Does not disintegrate when pressed by hand [332] [Table 5] Density(g/cc) MI(dg/min) Tm(℃) Shore hardness A Blocking grade Example 2 0.863 5.7 38.2 48.2 3 Comparative Example 2 0.864 6.3 36.2 47.5 4 Example 3 0.862 1.2 36.9 47.3 0.5 Comparative Example 3 0.862 1.3 33.9 45.4 1.5 [333] Referring to Table 5, the olefin-based polymers of Examples 2 and 3 exhibit high melting temperatures and hardness at the same or similar density as compared to the olefin-based polymers of Comparative Examples 2 and 3, and thus improved anti-blocking ( anti-blocking) properties. Claims [Claim 1] (1) the density (d) is 0.85 g/cc to 0.90 g/cc, and (2) the melt index (Melt Index, MI, 190° C., 2.16 kg load condition) is 0.1 g/10 min to 15 g/10 min. (3) the density (d) and the melting temperature (Tm) satisfy the following Equation 1, and (4) the ratio (hardness/Tm) of the hardness (Shore A) to the melting temperature (Tm) is 1.0 to 1.3, Olefin polymer. [Equation 1] Tm(℃) = a×db In Equation 1, 2350 7.91 (MI) -0.188 . [Claim 8] The method of claim 1, wherein the olefin-based polymer is obtained by a method comprising polymerizing an olefin-based monomer in the presence of a catalyst composition for olefin polymerization comprising a transition metal compound of Formula 1 below. Polymer: [Formula 1] In Formula 1, R 1 is hydrogen; Alkyl of 1 to 20 carbon atoms; Cycloalkyl having 3 to 20 carbon atoms; Alkenyl having 2 to 20 carbon atoms; Alkoxy having 1 to 20 carbon atoms; Aryl of 6 to 20 carbon atoms; Arylalkoxy having 7 to 20 carbon atoms; Alkylaryl having 7 to 20 carbon atoms; Or arylalkyl having 7 to 20 carbon atoms, and R 2a to R 2e are each independently hydrogen; halogen; Alkyl of 1 to 20 carbon atoms; Cycloalkyl having 3 to 20 carbon atoms; Alkenyl having 2 to 20 carbon atoms; Alkoxy having 1 to 20 carbon atoms; Or aryl having 6 to 20 carbon atoms, and R 3Is hydrogen; halogen; Alkyl of 1 to 20 carbon atoms; Cycloalkyl having 3 to 20 carbon atoms; Alkenyl having 2 to 20 carbon atoms; Aryl of 6 to 20 carbon atoms; Alkylaryl having 6 to 20 carbon atoms; Arylalkyl having 7 to 20 carbon atoms; Alkyl amido having 1 to 20 carbon atoms; Aryl amido having 6 to 20 carbon atoms; Alkylidene having 1 to 20 carbon atoms; Or halogen, alkyl having 1 to 20 carbon atoms, cycloalkyl having 3 to 20 carbon atoms, alkenyl having 2 to 20 carbon atoms, alkoxy having 1 to 20 carbon atoms and aryl having 6 to 20 carbon atoms. Phenyl, R 4 to R 9 are each independently hydrogen; Silyl; Alkyl of 1 to 20 carbon atoms; Cycloalkyl having 3 to 20 carbon atoms; Alkenyl having 2 to 20 carbon atoms; Aryl of 6 to 20 carbon atoms; Alkylaryl having 7 to 20 carbon atoms; Arylalkyl having 7 to 20 carbon atoms; Or a metalloid radical of a Group 14 metal substituted with a hydrocarbyl having 1 to 20 carbon atoms; Two or more adjacent to each other among R 6 to R 9 may be connected to each other to form a ring, Q is Si, C, N, P or S, M is a Group 4 transition metal, X 1 and X 2Are each independently hydrogen; halogen; Alkyl of 1 to 20 carbon atoms; Cycloalkyl having 3 to 20 carbon atoms; Alkenyl having 2 to 20 carbon atoms; Aryl of 6 to 20 carbon atoms; Alkylaryl having 7 to 20 carbon atoms; Arylalkyl of 7 to 20 carbon atoms; Alkylamino of 1 to 20 carbon atoms; Arylamino having 6 to 20 carbon atoms; Or alkylidene having 1 to 20 carbon atoms.