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Sheet Like Material

Abstract: This sheet-like material contains an elastic resin and a non-woven fabric composed of ultrafine fibers having an average single fiber diameter of 0.3-7 µm wherein the elastic resin is a polyurethane resin (D) which contains: as essential constituent monomers a copolymerized polycarbonate diol (A1) which contains a structural unit derived from C3-5 alkane diol (a1) and a structural unit derived from C8-12 alkane diol (a2) the molar ratio of the alkane diol (a2) with respect to the total number of moles of the alkane diol (a1) and the alkane diol (a2) being 50-95 mol%; a polycarbonate diol (A2) containing a structural unit derived from C4-6 alkane diol (a3); an organic diisocyanate (B); and a chain extender (C). The sheet-like material has a soft texture and has durability and wear resistance capable of withstanding practical use.

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
09 September 2019
Publication Number
38/2019
Publication Type
INA
Invention Field
CHEMICAL
Status
Email
patent@depenning.com
Parent Application
Patent Number
Legal Status
Grant Date
2022-06-29
Renewal Date

Applicants

TORAY INDUSTRIES, INC.
1-1, Nihonbashi-Muromachi 2-chome, Chuo-ku, Tokyo 103-8666

Inventors

1. SHIKURI, Ryuji
c/o Gifu Plant, Toray Industries, Inc., 900-1, Oaza-Yasutsugu, Godo-cho, Anpachi-gun, Gifu 503-2395
2. NISHIMURA, Makoto
c/o Shiga Plant, Toray Industries, Inc., 1-1, Sonoyama 1-chome, Otsu-shi, Shiga 520-8558
3. MATSUZAKI, Yukihiro
c/o Gifu Plant, Toray Industries, Inc., 900-1, Oaza-Yasutsugu, Godo-cho, Anpachi-gun, Gifu 503-2395
4. YANAGISAWA, Satoshi
c/o Gifu Plant, Toray Industries, Inc., 900-1, Oaza-Yasutsugu, Godo-cho, Anpachi-gun, Gifu 503-2395

Specification

WE CLAIM:
1. A sheet-like material comprising a nonwoven fabric composed of an ultrafine fiber having an average single fiber diameter of 0 . 3 to 7 |jin; and an elastic resin, wherein the elastic resin is a polyurethane resin (D) which contains: as essential constituent monomers, a copolymerized polycarbonate diol (Al) which contains a structural unit derived from C3-5 alkane diol (al) and a structural unit derived from C8-12 alkane diol (a2) , the molar ratio of the alkanediol (a2) with respect to the total number of moles of the alkanediol (al) and the alkanediol (a2) being 50 to 95 mole%; a polycarbonate diol (A2) containing a structural unit derived from a C4-6 alkane diol (a3) ; an organic diisocyanate (B) ; and a chain extender (C) , and the polyurethane resin (D) satisfies the following conditions (1) to (3) :
(1) The copolymerized polycarbonate diol (Al) has a heat
quantity of fusion (AH) of 40 to 100 J/g, the heat quantity of
fusion (AH) being determined in accordance with a melting point
measuring method provided in JIS K7121-1987.
(2) The polycarbonate diol (A2) has a heat quantity of fusion
(AH) of 0 J/g.
(3) A difference (ATm) in a melting point (Tm) between a mixture
(A12) of the copolymerized polycarbonate diol (Al) with the
polycarbonate diol (A2) and the copolymerized polycarbonate diol (Al) is 1.5°C or lower, the melting point (Tm) being

determined by a melting point measuring method provided in JIS K7121-1987.
2 . The sheet-like material according to claim 1, wherein the mixture (A12) of the copolymerized polycarbonate diol (Al) with
the polycarbonate diol (A2) has a heat quantity of fusion (AH) of 10 to 55 J/g.
3. The sheet-like material according to claim 1, wherein the alkanediol (al) is a linear alkanediol and the alkanediol (a2) is a linear alkanediol.
4 . The sheet-like material according to claim 1 or 2, wherein a mass ratio of the copolymerized polycarbonate diol (Al) with respect to the total mass of the copolymerized polycarbonate diol (Al) and the polycarbonate diol (A2) is 30 to 80 mass%.
5. The sheet-like material according to any one of claims 1 to 3, wherein at least one of the alkanediol (al) and the alkanediol (a2) is a bio-based alkanediol.
6. The sheet-like material according to claim 1, wherein the polyurethane resin (D) is apolyurethane resin (Dl) containing, as an essential constituent monomer, a compound (A3) having a hydrophilic group and an active hydrogen.

Documents

Application Documents

# Name Date
1 201947036182.pdf 2019-09-09
2 201947036182-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [09-09-2019(online)].pdf 2019-09-09
3 201947036182-STATEMENT OF UNDERTAKING (FORM 3) [09-09-2019(online)].pdf 2019-09-09
4 201947036182-PROOF OF RIGHT [09-09-2019(online)].pdf 2019-09-09
5 201947036182-PRIORITY DOCUMENTS [09-09-2019(online)].pdf 2019-09-09
6 201947036182-FORM 1 [09-09-2019(online)].pdf 2019-09-09
7 201947036182-DECLARATION OF INVENTORSHIP (FORM 5) [09-09-2019(online)].pdf 2019-09-09
8 201947036182-COMPLETE SPECIFICATION [09-09-2019(online)].pdf 2019-09-09
9 201947036182-CLAIMS UNDER RULE 1 (PROVISIO) OF RULE 20 [09-09-2019(online)].pdf 2019-09-09
10 201947036182-FORM-26 [10-09-2019(online)].pdf 2019-09-10
11 201947036182-RELEVANT DOCUMENTS [20-09-2019(online)].pdf 2019-09-20
12 201947036182-MARKED COPIES OF AMENDEMENTS [20-09-2019(online)].pdf 2019-09-20
13 201947036182-FORM 13 [20-09-2019(online)].pdf 2019-09-20
14 201947036182-AMMENDED DOCUMENTS [20-09-2019(online)].pdf 2019-09-20
15 Correspondence by Agent _Form-1 and GPA_23-09-2019.pdf 2019-09-23
16 201947036182-FORM 3 [19-12-2019(online)].pdf 2019-12-19
17 201947036182-FORM 3 [12-10-2020(online)].pdf 2020-10-12
18 201947036182-FORM 18 [26-11-2020(online)].pdf 2020-11-26
19 201947036182-FORM 3 [02-06-2021(online)].pdf 2021-06-02
20 201947036182-FER.pdf 2021-12-27
21 201947036182-OTHERS [23-06-2022(online)].pdf 2022-06-23
22 201947036182-Information under section 8(2) [23-06-2022(online)].pdf 2022-06-23
23 201947036182-FORM 3 [23-06-2022(online)].pdf 2022-06-23
24 201947036182-FER_SER_REPLY [23-06-2022(online)].pdf 2022-06-23
25 201947036182-CLAIMS [23-06-2022(online)].pdf 2022-06-23
26 201947036182-PatentCertificate29-06-2022.pdf 2022-06-29
27 201947036182-IntimationOfGrant29-06-2022.pdf 2022-06-29

Search Strategy

1 SearchHistoryE_23-12-2021.pdf

ERegister / Renewals

3rd: 11 Aug 2022

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4th: 11 Aug 2022

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5th: 11 Aug 2022

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6th: 11 Aug 2022

From 06/02/2023 - To 06/02/2024

7th: 29 Dec 2023

From 06/02/2024 - To 06/02/2025

8th: 06 Jan 2025

From 06/02/2025 - To 06/02/2026