发明名称 |
AQUEOUS POLYURETHANE RESIN DISPERSION |
摘要 |
Provided is an aqueous polyurethane resin dispersion having a good film-forming property, and excellent mechanical properties and water resistance. The present invention is an aqueous polyurethane resin dispersion comprising water and a polyurethane resin (U) and satisfying all of the following conditions (1) to (6): (1) a urethane group content in the polyurethane resin (U) is 0.5 to 5.0 mmol/g, based on weight of the polyurethane resin (U); (2) a terminal amino group content in the polyurethane resin (U) is not more than 0.35 mmol/g, based on the weight of the polyurethane resin (U); (3) a number average molecular weight (Mn) of the polyurethane resin (U) is 10,000 to 1, 000,000; (4) a ratio (Mw/Mn) of a weight average molecular weight (Mw) to the number average molecular weight (Mn) of the polyurethane resin (U) is 1.5 to 3.5; (5) a melting temperature of the polyurethane resin (U) is 70 to 280°C; and (6) a volume average particle diameter (Dv) of the polyurethane resin (U) is 0.01 to 1 µm. |
申请公布号 |
EP2423240(A1) |
申请公布日期 |
2012.02.29 |
申请号 |
EP20090843601 |
申请日期 |
2009.04.22 |
申请人 |
SANYO CHEMICAL INDUSTRIES, LTD. |
发明人 |
MATSUI, YOSUKE;INAKI, MOTOTAKA |
分类号 |
C08G18/00;C08G18/12;C08J3/00;C08J3/03;C08J3/05 |
主分类号 |
C08G18/00 |
代理机构 |
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地址 |
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