Claims:WE CLAIM

1. A coating composition for a wooden substrate comprising:
a. a halogenated polymer in an amount in the range of 3 wt% to 25 wt% with respect to the total weight of the composition;
b. a fluid medium in an amount in the range of 75 wt% to 97 wt% with respect to the total weight of the composition; and
c. optionally at least one compound selected from tackifier, metal oxide, and modifier in an amount in the range of 0.5 wt% to 10 wt% with respect to the total weight of the composition;
wherein said halogenated polymer is soluble in said fluid medium.
2. The coating composition as claimed in claim 1, wherein said halogenated polymer is at least one selected from polyvinyl chloride, halobutyl rubber, ionomeric modified halobutyl rubber, and polychloroprene rubber.
3. The coating composition as claimed in claim 1, wherein said fluid medium is at least one selected from tetrahydrofuran, acetone, 1,2 dichloroethane, cyclohexanone, toluene, methyl ethyl ketone, alkyl acetate, chloroform, carbon tetrachloride, N-Methyl-2-pyrrolidone, diethyl ether, dimethylformamide, and acetonitrile.
4. The coating composition as claimed in claim 1, wherein said tackifier is present in an amount in the range of 1 wt% to 5 wt% with respect to the total weight of the composition.
5. The coating composition as claimed in claim 1, wherein said tackifier is at least one selected from CI resin, wood rosin, phenolic resin, and terpene resin.
6. The coating composition as claimed in claim 1, wherein said metal oxide is present in an amount in the range of 0.5 wt% to 3 wt% with respect to the total weight of the composition.
7. The coating composition as claimed in claim 1, wherein said metal oxide is di and trivalent metal oxides, at least one selected from zinc oxide, magnesium oxide, manganese oxide, and titanium oxide.
8. The coating composition as claimed in claim 1, wherein said modifier is present in an amount in the range of 1 wt% to 5 wt% with respect to the total weight of the composition.
9. The coating composition as claimed in claim 1, wherein said modifier is alkoxy silanes, at least one selected from tetraethoxysilane (TEOS), 3-aminopropyl trimethoxy silane, 3-aminopropyl triethoxy silane, 3-glycidyloxypropyl trimethoxysilane, mercapto propyl trimethoxysilane, triethoxy silyl propyl tetrasulfide silane, vinyl tri- alkoxysilane, (3-aminopropyl)- diethoxymethyl silane, and amino propyl dimethyl ethoxy silane.
10. The coating composition as claimed in claim 1, wherein a weight ratio of said halogenated polymer to said fluid medium is in the range of 1:10 to 1:15.
11. The coating composition as claimed in claim 1, wherein a viscosity of said coating composition is in the range of 50 cp to 500 cp.
12. The coating composition as claimed in claim 1, wherein said coating composition is applied at least twice on said wooden substrate.
13. The coating composition as claimed in claim 1, wherein said coating composition is configured to coat uniformly in a thickness in the range of 1 µ to 5 µ on said wooden substrate.
14. The coating composition as claimed in claim 1, wherein said wooden substrate is selected from jungle wood, cartons, boxes, crates, and pallets.
15. The coating composition as claimed in claim 1, wherein said halogenated polymer is present in an amount in the range of 3 wt% to 10 wt% with respect to the total weight of the composition.
16. A process for the preparation of a coating composition as claimed in claim 1, said process comprising the following steps:
a. mixing halogenated polymer and fluid medium under stirring to obtain a polymer mixture;
b. optionally adding at least one compound selected from tackifier, metal oxide, and modifier to said polymer mixture under stirring to obtain a resultant mixture; and
c. heating said reaction mixture at a predetermined temperature under stirring at a speed in the range of 250 rpm to 350 rpm for a predetermined time period to obtain said coating composition in the form of a homogeneous solution.
17. The process as claimed in claim 16, wherein said predetermined temperature is in the range of 35°C to 55°C.
18. The process as claimed in claim 16, wherein said predetermined time period is in the range of 2 hours to 4 hours.

Dated this 8th day of November, 2021

_______________________________
MOHAN RAJKUMAR DEWAN, IN/PA – 25
of R.K.DEWAN & CO.
Authorized Agent of Applicant

TO,
THE CONTROLLER OF PATENTS
THE PATENT OFFICE, AT MUMBAI
, Description:FIELD
The present disclosure relates to a coating composition and a process for its preparation.
DEFINITIONS
As used in the present disclosure, the following term is generally intended to have the meaning as set forth below, except to the extent that the context in which it is used indicates otherwise.
Jungle wood: Jungle wood, also known as hardwood, is a medium-sized hardwood that mainly grows in temperate forest areas. The jungle woods include wood from oak, spruce, birch, jungle, acacia, dark oak, and the like.
BACKGROUND
The background information hereinbelow relates to the present disclosure but is not necessarily prior art.
Pallets are widely used for storing and transporting a wide variety of goods. The pallets are generally made of plastic or wood. Generally, pine wood is preferred for the preparation of pallets, however, they are costly. Alternatively, a cost-effective solution is to use jungle wood. The jungle wood is associated with a natural tendency of the wood or other structural material that degrades as a result of moisture permeation, which results in a marked reduction of useful life and performance.
The wooden pallets are prepared by using wood that is not generally harvested from a newly timbered tree, allowing for more efficient consumption of natural resources, hence avoiding plastic. The efficient utilization of natural resources reduces the energy required to produce the wooden pallet as compared to the plastic pallet. The wooden pallets have a short life expectancy, they have to be repaired or discarded quickly. The process of repairing is time-consuming and expensive.
Conventional pallets made of the jungle wood quickly absorb moisture, enable fungal growth leading to reduce performance and life of the pallets. Alternatively, the jungle wood pallets can be replaced with polymer-wood pallets, or coating strips of polymer on the wooden surface. However, manufacturing of such polymer-wood pallets or coating strips of polymer on the wooden surface is complex and requires high amount of polymer, thus increasing the overall cost.
Therefore, there is felt a need to provide a coating composition that minimizes the wooden substrates that mitigates the aforestated drawbacks
OBJECTS
Some of the objects of the present disclosure, which at least one embodiment herein satisfies, are as follows:
An object of the present disclosure is to ameliorate one or more problems of the prior art or to at least provide a useful alternative.
Another object of the present disclosure is to provide a coating composition.
Yet another object of the present disclosure is to provide a coating composition for a wooden substrate to resist moisture penetration and growth of fungus.
Still another object of the present disclosure is to provide a process for the preparation of a coating composition.
Other objects and advantages of the present disclosure will be more apparent from the following description, which is not intended to limit the scope of the present disclosure.
SUMMARY
The present disclosure relates to a coating composition and a process for its preparation. In an aspect, the coating composition comprises a halogenated polymer in an amount in the range of 3 wt% to 25 wt% with respect to the total weight of the composition; a fluid medium in an amount in the range of 75 wt% to 97 wt% with respect to the total weight of the composition; optionally at least one compound selected from tackifier, metal oxide and modifier in an amount in the range of 0.5 wt% to 10 wt% with respect to the total weight of the composition; wherein the halogenated polymer is soluble in the fluid medium.
In another aspect, the process for the preparation of the coating composition comprises mixing halogenated polymer and fluid medium under stirring to obtain a polymer mixture. To the polymer mixture, optionally at least one compound selected from tackifier, metal oxide, and modifier is added to polymer mixture under stirring to obtain a resultant mixture. The resultant mixture is heated at a predetermined temperature under stirring at a speed in the range of 250 rpm to 350 rpm for a predetermined time period to obtain the coating composition in the form of a homogeneous solution.
BRIEF DESCRIPTION OF THE DRAWING
Figure 1 illustrates jungle wooden substrates;
Figure 2 illustrates a wooden substrate treated with water for 96 hours; (a) non-treated wooden substrate after 96 hr; (b) BIPV (two layered coating: Experiment V and II) coated wood substrate; (c) PVCI (Experiment II: PVC and CI resin coating) wood substrate; (d) closure view of fungus growth after 96 hr on non-treated wood; and
Figure 3 illustrates a wooden substrate after immersing 96 hours in water (a) non-treated wooden substrate vs PVCI (Experiment II: PVC and CI resin coating) coated substrate; (b) non-treated wooden substrate vs BIPV coated substrate.
DETAILED DESCRIPTION
Embodiments, of the present disclosure, will now be described with reference to the accompanying drawing.
Embodiments are provided so as to thoroughly and fully convey the scope of the present disclosure to the person skilled in the art. Numerous details are set forth, relating to specific components, and methods, to provide a complete understanding of embodiments of the present disclosure. It will be apparent to the person skilled in the art that the details provided in the embodiments should not be construed to limit the scope of the present disclosure. In some embodiments, well-known processes, well-known apparatus structures, and well-known techniques are not described in detail.
The terminology used, in the present disclosure, is only for the purpose of explaining a particular embodiment and such terminology shall not be considered to limit the scope of the present disclosure. As used in the present disclosure, the forms "a,” "an," and "the" may be intended to include the plural forms as well, unless the context clearly suggests otherwise. The terms "comprises," "comprising," “including,” and “having,” are open ended transitional phrases and therefore specify the presence of stated features, integers, steps, operations, elements, modules, units and/or components, but do not forbid the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The particular order of steps disclosed in the method and process of the present disclosure is not to be construed as necessarily requiring their performance as described or illustrated. It is also to be understood that additional or alternative steps may be employed.
As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed elements.
The terms first, second, third, etc., should not be construed to limit the scope of the present disclosure as the aforementioned terms may be only used to distinguish one element, component, region, layer or section from another component, region, layer or section. Terms such as first, second, third etc., when used herein do not imply a specific sequence or order unless clearly suggested by the present disclosure.
Pallets are widely used for storing and transporting a wide variety of goods. The pallets are generally made of plastic or wood. Generally, pine wood is preferred for the preparation of pallets, however, they are costly. Alternatively, a cost-effective solution is to use jungle wood. The jungle wood is associated with the natural tendency of the wood or other structural material that degrades as a result of moisture permeation, which results in a marked reduction of useful life and performance.
Conventional pallets made of jungle wood quickly absorb moisture, enable fungal growth leading to the reduced performance and life of the pallets.
The present disclosure provides a coating composition, which improves moisture resistance and antifungal properties of the wooden substrates.
In an aspect of the present disclosure, there is provided a coating composition.
The coating composition for wooden substrates comprises a halogenated polymer in an amount in the range of 3 wt% to 25 wt% with respect to the total weight of the composition; a fluid medium in an amount in the range of 75 wt% to 97 wt% with respect to the total weight of the composition; optionally at least one compound selected from tackifier, metal oxide and modifier in an amount in the range of 0.5 wt% to 10 wt% with respect to the total weight of the composition; wherein the halogenated polymer is soluble in the fluid medium.
In an embodiment of the present disclosure, the halogenated polymer is at least one selected from polyvinyl chloride, halobutyl rubber, ionomeric modified halobutyl rubber, and polychloroprene rubber. In an exemplary embodiment, the halogenated polymer is polyvinyl chloride. In another exemplary embodiment, the halogenated polymer is halobutyl rubber. In still another exemplary embodiment, the halogenated polymer is ionomeric modified halobutyl rubber.
In an embodiment of the present disclosure, the fluid medium is at least one selected from tetrahydrofuran, acetone, 1,2 dichloroethane, cyclohexanone, toluene, methyl ethyl ketone, alkyl acetate, chloroform, carbon tetrachloride, N-Methyl-2-pyrrolidone, diethyl ether, dimethylformamide, and acetonitrile. In an exemplary embodiment, the fluid medium is toluene. In another exemplary embodiment, the fluid medium is a mixture of tetrahydrofuran and toluene. In still another exemplary embodiment, the fluid medium is a mixture of tetrahydrofuran, acetone, 1,2 dichloroethane, and cyclohexanone.
In an embodiment of the present disclosure, the tackifier is at least one selected from CI resin, wood rosin, phenolic resin, and terpene resin. In an exemplary embodiment, the tackifier is CI resin.
In an embodiment of the present disclosure, the tackifier is present in an amount in the range of 1 wt% to 5 wt% with respect to the total weight of the composition. In an exemplary embodiment, the amount of the tackifier is 1.13%. In another exemplary embodiment, the amount of the tackifier is 1.12%.
In an embodiment of the present disclosure, the metal oxide is di and trivalent oxides which are at least one selected from zinc oxide, magnesium oxide, manganese oxide, and titanium oxides. In an exemplary embodiment, the metal oxide is zinc oxide.
In an embodiment of the present disclosure, the metal oxide is present in an amount in the range of 0.5 wt% to 3 wt% with respect to the total weight of the composition. In an exemplary embodiment, the amount of metal oxide is 0.79%. In another exemplary embodiment, the amount of metal oxide is 0.78%.
In an embodiment of the present disclosure, the modifier is alkoxy silanes which is at least one selected from tetraethoxysilane (TEOS), 3-aminopropyl trimethoxy silane, 3-aminopropyl triethoxy silane, 3-glycidyloxypropyl trimethoxysilane, mercapto propyl trimethoxysilane, triethoxy silyl propyl tetrasulfide silane, vinyl tri- alkoxysilane, (3-aminopropyl)- diethoxymethyl silane, and amino propyl dimethyl ethoxy silane. In an exemplary embodiment, the modifier is tetraethoxysilane (TEOS).
In an embodiment of the present disclosure, the modifier is present in an amount in the range of 1 wt% to 5 wt% with respect to the total weight of the composition. In an exemplary embodiment, the amount of the modifier is 2.09%.
In an embodiment of the present disclosure, a weight ratio of the halogenated polymer to the fluid medium is in the range of 1:10 to 1:15. In an exemplary embodiment, the weight ratio of the halogenated polymer to the fluid medium is 1: 13.38. In another exemplary embodiment, the weight ratio of the halogenated polymer to the fluid medium is 1: 13.09. In still another exemplary embodiment, the weight ratio of the halogenated polymer to the fluid medium is 1: 11.3. In yet another exemplary embodiment, the weight ratio of the halogenated polymer to the fluid medium is 1: 10.13.
In an embodiment of the present disclosure, the viscosity of the coating composition is in the range of 50 cp to 500 cp.
In an embodiment of the present disclosure, the coating composition is applied at least twice on the wooden substrate. The coating composition when applied at least twice on the wooden substrate improves the efficiency of the coating. Increased absorption of water is observed when the wooden substrate is coated with a single layer of the coating composition; however, the water absorption is negligible when the wooden substrate is coated with coating composition at least two times.
In an embodiment of the present disclosure, the coating composition is configured to coat uniformly having a thickness in the range of 1µ to 5 µ on the wooden substrate.
In an embodiment of the present disclosure, the wooden substrate is selected from jungle wood, cartons, boxes, crates, and pallets.
The present disclosure provides an effective coating composition, which when applied on the wooden substrate enhances the moisture resistance, has superior scratch resistance, and improves antifungal properties. The coating composition of the present disclosure also helps in enhancing the performance of the wooden substrate. The coating composition of the present disclosure can be used on a variety of wooden substrates selected from jungle wood, cartons, boxes, crates, and pallets.
In another aspect of the present disclosure, there is provided a process for the preparation of the coating composition. Particularly, the present disclosure provides a process for the preparation of halogenated polymer based coating composition.
The process is described in detail.
In a first step, a halogenated polymer is mixed with at least one fluid medium under stirring to obtain a polymer mixture.
In an embodiment of the present disclosure, the halogenated polymer is at least one selected from polyvinyl chloride, halobutyl rubber, ionomeric modified halobutyl rubber, and polychloroprene rubber. In an exemplary embodiment, the halogenated polymer is polyvinyl chloride. In another exemplary embodiment, the halogenated polymer is halobutyl rubber. In still another exemplary embodiment, the halogenated polymer is ionomeric modified halobutyl rubber.
In an embodiment of the present disclosure, the fluid medium is at least one selected from tetrahydrofuran, acetone, 1,2 dichloroethane, cyclohexanone, toluene, methyl ethyl ketone, alkyl acetate, chloroform, carbon tetrachloride, N-Methyl-2-pyrrolidone, diethyl ether, dimethylformamide, and acetonitrile. In an exemplary embodiment, the fluid medium is toluene. In another exemplary embodiment, the fluid medium is a mixture of tetrahydrofuran and toluene. In still another exemplary embodiment, the fluid medium is a mixture of tetrahydrofuran, acetone, 1,2 dichloroethane, and cyclohexanone.
In a second step, optionally at least one compound selected from tackifier, metal oxide, and modifier is added to the polymer mixture under stirring to obtain a resultant mixture.
In an embodiment of the present disclosure, the tackifier is at least one selected from CI resin, wood rosin, phenolic resin, and terpene resin. In an exemplary embodiment, the tackifier is CI resin.
In an embodiment of the present disclosure, the metal oxide is di and trivalent oxides which are at least one selected from zinc oxide, magnesium oxide, manganese oxide, and titanium oxides. In an exemplary embodiment, the metal oxide is zinc oxide.
In an embodiment of the present disclosure, the modifier is alkoxy silanes which is at least one selected from tetraethoxysilane (TEOS), 3-aminopropyl trimethoxy silane, 3-aminopropyl triethoxy silane, 3-glycidyloxypropyl trimethoxysilane, mercapto propyl trimethoxysilane, triethoxy silyl propyl tetrasulfide silane, vinyl tri- alkoxysilane, (3-aminopropyl)- diethoxymethyl silane, and amino propyl dimethyl ethoxy silane. In an exemplary embodiment, the modifier is tetraethoxysilane (TEOS).
In a third step, the resultant mixture is subjected to heating at a predetermined temperature under stirring at a speed in the range of 250 rpm to 350 rpm for a predetermined time period to obtain the coating composition.
In an exemplary embodiment, the resultant mixture is stirred at a speed of 300 rpm.
In an embodiment of the present disclosure, the predetermined temperature is in the range of 35°C to 55°C. In an exemplary embodiment, the temperature is 45 °C.
In an embodiment of the present disclosure, the predetermined time period is in the range of 2 hours to 4 hours. In an exemplary embodiment, the time period is 3 hours.
The foregoing description of the embodiments has been provided for purposes of illustration and is not intended to limit the scope of the present disclosure. Individual components of a particular embodiment are generally not limited to that particular embodiment, but, are interchangeable. Such variations are not to be regarded as a departure from the present disclosure, and all such modifications are considered to be within the scope of the present disclosure.
The present disclosure is further described in light of the following experiments which are set forth for illustration purposes only and not to be construed for limiting the scope of the disclosure. The following experiments can be scaled up to industrial/commercial scale and the results obtained can be extrapolated to industrial scale.
EXPERIMENTAL DETAILS
Preparation of the coating composition in accordance with the present disclosure
EXPERIMENT I
12.5 gm of thermoplastic PVC resin (K57-GER-01) was charged to a reactor followed by adding 46.25 ml of tetrahydrofuran (THF), 18.75 ml of acetone, 12.5 ml of 1,2 dichloroethane, 10 ml of cyclohexanone to obtain a polymer mixture. The polymer mixture was heated at 45°C under stirring at a speed of 300 rpm for 3 hours to obtain the coating composition.
EXPERIMENT II:
12.5 gm of thermoplastic PVC resin (K57-GER-01) was charged to a reactor followed by adding 46.25 ml of tetrahydrofuran (THF), 18.75 ml of acetone, 12.5 ml of 1,2 dichloroethane, 10 ml of cyclohexanone to obtain a polymer mixture. To the polymer mixture, 2 g of CI resin dissolved in 10 ml THF was added to obtain a resultant mixture. The resultant mixture was heated at 45°C under stirring at a speed of 300 rpm for 3 hours to obtain the coating composition.
EXPERIMENT III:
12.5 gm of thermoplastic PVC resin (K57-GER-01) was charged to a reactor followed by 46.25 ml of tetrahydrofuran (THF), 18.75 ml of acetone, 12.5 ml of 1,2 dichloroethane, 10 ml of cyclohexanone to obtain a polymer mixture. To the polymer mixture, 2 ml of Tetraethoxysilane (TEOS) was added under stirring to obtain a resultant mixture. The resultant mixture was heated at 45°C under stirring at a speed of 300 rpm for 3 hours to obtain the coating composition.
EXPERIMENT IV:
10 gm of halobutyl rubber, 1 gm of CI-resin, and 89 ml of toluene were charged to a reactor to obtain a polymer mixture. To the polymer mixture, 0.7 gm of zinc oxide was added under stirring to obtain the resultant mixture. The resultant mixture was heated at 45°C under stirring at a speed of 300 rpm for 3 hours to obtain the coating composition.
EXPERIMENT V:
6 gm of halobutyl rubber, 3 gm of ionomeric modified halobutyl rubber, 1 gm of CI-resin, 70 ml of toluene, and 20 ml of tetrahydrofuran were charged to a reactor to obtain a polymer mixture. To the polymer mixture, 0.7 gm of zinc oxide was added under stirring to obtain the resultant mixture. The resultant mixture was heated at 45°C under stirring at a speed of 300 rpm for 3 hours to obtain the coating composition.
Study of performance of the coating composition of the present disclosure on a wooden substrate
Wooden sample specimens with a dimension of 3inch x 3inch and 3inch x 1.5 inch were cut from a jungle wood pallet as illustrated in Figure 1.
The coating compositions obtained in experiments 1 to 5 were applied to the wooden sample specimens as provided below in Table 1
Table 1: Coating on wooden substrates
S. No Name Ist layer IInd layer
1 PVC Experiment I Experiment I
2 PVCI Experiment II Experiment II
3 PVTEOS Experiment III Experiment III
4 BIIR Experiment IV Experiment IV
5 PBIIR Experiment V Experiment V
6 BIPV Experiment V Experiment II

The wooden substrates were coated with different coating compositions as disclosed in table 1. A first coat of the coating composition was applied to the wooden sample specimen by brush coating method followed by drying at room temperature for 30 minutes to 60 minutes and a second coat was applied followed by drying at room temperature for 24 hours to uniformly cover the complete surface. The thickness of the coating composition on the wooden substrate was approximately 2 micron layers.
The coated wooden substrates were weighed and dipped in normal distilled water at room temperature for 24 hours and 96 hours inside a container to observe their moisture absorption capacity. The moisture absorption of the coated wooden substrates of the present disclosure was determined according to ASTM D570-98.
After 24 hours and 96 hours, all the samples were taken out; the wet surface was wiped with filter paper, and again weight was recorded. The wet weight values were determined by the following formula:
M (%) = ((mt – m0) / m0) X 100
where mt denotes weight after time t; and
m0 denotes weight at zero time.
The moisture absorption by the wooden substrates was calculated by analyzing two samples for each composition with a control (non-treated wood substrate) and the average of the same are summarized below in Table-I.
Table-1: Performance of coating composition
Samples Distilled water Absorption for 24 Hrs @RT, Moisture Absorption in Wt.% State of Sample for 24 Hrs @RT Fungus growth after 24 Hrs @RT State of Sample for 96 Hrs @RT Fungus growth after 96 Hrs @RT
Non-treated wood substrate 14.6 Floating No Sinking Yes
PVC
(Experiment 1) 0.3 Floating No Floating No
PVCI
(Experiment 2) 0.4 Floating No Floating No
PVTEOS
(Experiment 3) 0.3 Floating No Floating No
BIIR
(Experiment 4) 4.8 Floating No Floating Yes slightly
PBIIR
(Experiment 5) 2.4 Floating No Floating No
BIPV
0.4 Floating No Floating No
RT = Room temperature
It is evident from the above data that the non-treated wood sample shows the highest water absorption after 24 hours up to a limit of 14.6 % whereas all the polymer treated samples show a maximum of 4.8 % which is almost 70 % lower than the non-treated sample. Other than BIIR, PBIIR all samples show minimal water absorption up to a level of 0.4 %. Four samples represented as PVC, PVCI, PVTEOS, and BIPV show a moisture absorption in the range of 0.3 to 0.4 %. Further, these four samples were kept under very close observations for fungal growth and water immersion properties.
After 24 hours and 96 hours, the wooden substrates were observed visually for the fungal growth and sinking properties. It was observed that after 96 hours, the non-treated wood substrate has developed high fungus growth evident from colour changes, as illustrated in Figures 2a and 2d. The non-treated wood substrate also sinks to the bottom of the container due to the higher moisture absorption whereas other coated substrates (BIPV and PVCI) float on the water surface with no visible fungus growth, as illustrated in Figures 2b and 2c.
The growth of the fungus was observed only in the non-treated wood substrate. It was observed that BIPV, PVCI coated wooden substrates show no visible fungal growth as illustrated in Figure 3.
TECHNICAL ADVANCEMENTS
The present disclosure described hereinabove has several technical advantages including, but not limited to, the realization of a coating composition that:
• provides excellent moisture resistance, superior scratch resistance, and improved antifungal properties of the coated wooden substrate;
• is able to convert jungle wood to high-performance wood article;
• uses recycled solvents during the process of preparation; and
• a simple, environment-friendly, and cost-efficient process for the preparation of the coating composition.
The embodiments herein and the various features and advantageous details thereof are explained with reference to the non-limiting embodiments in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.
The foregoing description of the specific embodiments so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the embodiments as described herein.
The use of the expression “at least” or “at least one” suggests the use of one or more elements or ingredients or quantities, as the use may be in the embodiment of the disclosure to achieve one or more of the desired objects or results.
Any discussion of documents, acts, materials, devices, articles or the like that has been included in this specification is solely for the purpose of providing a context for the disclosure. It is not to be taken as an admission that any or all of these matters form a part of the prior art base or were common general knowledge in the field relevant to the disclosure as it existed anywhere before the priority date of this application.
The numerical values mentioned for the various physical parameters, dimensions or quantities are only approximations and it is envisaged that the values higher/lower than the numerical values assigned to the parameters, dimensions or quantities fall within the scope of the disclosure, unless there is a statement in the specification specific to the contrary.
While considerable emphasis has been placed herein on the components and component parts of the preferred embodiments, it will be appreciated that many embodiments can be made and that many changes can be made in the preferred embodiments without departing from the principles of the disclosure. These and other changes in the preferred embodiment as well as other embodiments of the disclosure will be apparent to those skilled in the art from the disclosure herein, whereby it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the disclosure and not as a limitation.