发明名称 |
Polysiloxane graft copolymers, flexible coating compositions comprising same and branched polysiloxane macromers for preparing same |
摘要 |
A thermosetting coating composition adapted to form a flexible cured coating over a variety of substrates, such as metal and plastic containing a hydroxy functional urethane modified polysiloxane graft copolymer and an alkylated melamine crosslinking agent. The copolymer has a number average molecular weight between about 1,000 and about 4,000, has a hydroxyl number between about 30 and about 300, contains about 1-10 urethane linkages per molecule and is the reaction product of carbon-carbon double bond-reactive monoethylenically unsaturated monomer with hydroxy functional carbon-carbon double bond-bearing branched polysiloxane macromer. The macromer is the reaction product of glycidyl methacrylate and hydroxy functional polysiloxane reactant containing 1-10 urethane linkages per molecule.
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申请公布号 |
US4804732(A) |
申请公布日期 |
1989.02.14 |
申请号 |
US19880151540 |
申请日期 |
1988.02.02 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
RYNTZ, ROSE A.;KURPLE, KENNETH R. |
分类号 |
C08F290/06;C08F290/14;C08G18/46;C08G18/63;C09D155/00;(IPC1-7):C08G77/04 |
主分类号 |
C08F290/06 |
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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