发明名称 |
POLYURETHANE DISPERSION AND POLYURETHANE LAMINATE |
摘要 |
A polyurethane dispersion is a polyurethane dispersion in which polyurethane resin produced by reaction of an isocyanate group-terminated prepolymer with a chain extender is dispersed in water. The isocyanate group-terminated prepolymer is produced by at least allowing a polyisocyanate component containing xylylene diisocyanate and/or hydrogenated xylylene diisocyanate to react with a polyol component containing diol having 2 to 6 carbon atoms, a low-molecular-weight polyol having a functionality of three or more, and an active hydrogen group-containing compound containing a hydrophilic group. The chain extender contains an alkoxysilyl compound having a primary amino group, or a primary amino group and a secondary amino group, and the molar ratio of the hydroxyl group in the low-molecular-weight polyol having a functionality of three or more is less than 25% relative to a total mol 100% of the hydroxyl group in the polyol component. |
申请公布号 |
US2016159965(A1) |
申请公布日期 |
2016.06.09 |
申请号 |
US201414908020 |
申请日期 |
2014.07.16 |
申请人 |
MITSUI CHEMICALS, INC. |
发明人 |
UCHIDA Takashi;KOUDA Chikako;OISHI Akihiro |
分类号 |
C08G18/12;C08G18/72;C08J7/04;C08G18/32;C09D175/04;C08G18/08;C08G18/34 |
主分类号 |
C08G18/12 |
代理机构 |
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代理人 |
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主权项 |
1. A polyurethane dispersion in which polyurethane resin produced by reaction of an isocyanate group-teminated prepolymer with a chain extender is dispersed in water,
wherein the isocyanate group-terminated prepolymer is produced by at least allowing a polyisocyanate component containing xylylene diisocyanate and/or hydrogenated xylylene diisocyanate to react with a polyol component containing diol having 2 to 6 carbon atoms, a low-molecular-weight polyol having a functionality of three or more, and an active hydrogen group-containing compound containing a hydrophilic group; the chain extender contains an alkoxysilyl compound having a primary amino group, or a primary amino group and a secondary amino group; and the molar ratio of the hydroxy group in the low-molecular-weight polyol having a functionality of three or more is less than 25% relative to the total mol 100% of the hydroxyl group in the polyol component. |
地址 |
Tokyo JP |