发明名称 |
VERFAHREN ZUR HERSTELLUNG VON URETHANHARZ UND HAFTKLEBSTOFF |
摘要 |
A process for producing a urethane resin having a low viscosity and usable as a wide range of pressure-sensitive adhesives ranging from a strong-tack region to a slight-tack region, and a pressure-sensitive adhesive are provided. The process for producing a urethane resin comprises reacting a polyol with a polyisocyanate compound in such a proportion that isocyanate groups are in excess to thereby obtain an isocyanate-group-terminated prepolymer, thereafter reacting the isocyanate-group-terminated prepolymer with a chain extender, and reacting the resultant polymer with a chain terminator, wherein the chain extender has three or more functional groups reactive with an isocyanate group, wherein one of the functional groups is a primary amino group or a secondary amino group, another is a primary hydroxyl group, and the remaining functional group(s) are a secondary hydroxyl group or a tertiary hydroxyl group. The pressure-sensitive adhesive comprises the urethane resin obtained. |
申请公布号 |
DE602005027100(D1) |
申请公布日期 |
2011.05.05 |
申请号 |
DE20056027100T |
申请日期 |
2005.09.28 |
申请人 |
ASAHI GLASS CO. LTD. |
发明人 |
SHIMOMA, HITOSHI;HAMASAKI, KOTA;NAKAMURA, MAKITO;SATO, HISASHI;WADA, HIROSHI |
分类号 |
C08G18/10;C08G18/32;C08G18/65;C09J175/04;C09J175/08 |
主分类号 |
C08G18/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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