发明名称 |
ISOCYANATTERMINIERTES URETHANPREPOLYMER, HERSTELLUNGSVERFAHREN DAFÜR UND KLEBSTOFF, DER DAS URETHANPREPOLYMER ENTHÄLT |
摘要 |
It is an object of the present invention to provide an isocyanate group-terminated urethane prepolymer which has a low viscosity at melting and a process for producing the same, and an adhesive which comprises the urethane prepolymer and has such good workability that the adhesive in a molten state can be easily applied to substrates. The invention relates to a process for producing an isocyanate group-terminated urethane prepolymer which comprises reacting a polyol with a polyisocyanate compound, wherein the polyols comprise 10 to 60% by mass of a polyester polyol and 90 to 40% by mass of a polycarbonate polyol and a sebacic acid-derived polyester polyol which is a polycondensate of sebacic acid with a diol compound accounts for 50 to 100% by mass of the polyester polyol and wherein the polyisocyanate compound and the polyols are reacted in such amounts that the ratio (by mol) of the isocyanate group/hydroxyl group is 1.2 to 3.2. The invention further relates to an adhesive which comprises the isocyanate group-terminated urethane prepolymer as a main component. |
申请公布号 |
DE602006017677(D1) |
申请公布日期 |
2010.12.02 |
申请号 |
DE20066017677T |
申请日期 |
2006.04.19 |
申请人 |
ASAHI GLASS CO. LTD. |
发明人 |
OHORI, TOMEYOSHI;WADA, HIROSHI |
分类号 |
C08G18/12;C08G18/42;C08G18/44;C08G18/76;C09J175/06 |
主分类号 |
C08G18/12 |
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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