发明名称 Leather-like sheet and method for producing it
摘要 Provided are a leather-like sheet fabricated by infiltrating an aqueous resin dispersion (A) into a fibrous substrate, which satisfies a requirement (I) that the aqueous resin dispersion, (A) comprises essentially a main resin (a) stabilized with a surfactant, a polymer (b) having a polyoxyethylene group in its side chains, and a surfactant (c), a requirement (II) that the main resin (a) comprises an urethane resin (a1) and/or an urethane-acrylic composite resin (a2), and the resin skeleton contains from 1 to 10 mmols of a carboxyl group per 100 g of the resin, a requirement (III) that the polymer (b) is obtained through polymerization of a polyoxyethylene group-having ethylenic unsaturated monomer (b1) and any other ethylenic unsaturated monomer (b2) in a ratio by mass (b1)/(b2)=60/40 to 100/0, and a requirement (IV) that the percentage, % by mass (alpha) of the polyoxyethylene group in the polymer (b) and the number of mols (beta) of the amino group per gram of the polymer (b) satisfy 35<=alpha+betax20000<=60; and an industrial advantageous method for producing the sheet. The leather-like sheet has a good feel and good physical properties.
申请公布号 US2004023013(A1) 申请公布日期 2004.02.05
申请号 US20030633571 申请日期 2003.08.05
申请人 KURARY CO., LTD. 发明人 KATO MITSURU;NAKAYAMA KIMIO;TAKAOKA NOBUO
分类号 C08F265/04;C08F283/00;C08F283/06;C08F290/06;C08F290/14;C08G18/08;C08G18/10;C08G18/40;C08G18/44;C08G18/48;C08G18/66;C08L33/14;C08L51/00;C08L51/08;C08L71/02;C08L75/00;D06N3/00;D06N3/14;(IPC1-7):B32B1/00 主分类号 C08F265/04
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