发明授权
US4990583A Copolymers containing isocyanate and acid anhydride groups, a process
for their preparation and their use as a binder components
失效
含有异氰酸酯和酸酐基团的共聚物，其制备方法及其作为粘合剂组分的用途
- 专利标题： Copolymers containing isocyanate and acid anhydride groups, a process for their preparation and their use as a binder components
- 专利标题（中）： 含有异氰酸酯和酸酐基团的共聚物，其制备方法及其作为粘合剂组分的用途
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申请号： US305744申请日： 1989-02-03
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公开(公告)号： US4990583A公开(公告)日： 1991-02-05
- 发明人: Christian Wamprecht , Josef Pedain , Harald Blum
- 申请人： Christian Wamprecht , Josef Pedain , Harald Blum
- 申请人地址： DEX Leverkusen
- 专利权人： Bayer Aktiengesellschaft
- 当前专利权人： Bayer Aktiengesellschaft
- 当前专利权人地址： DEX Leverkusen
- 优先权： DEX3804589 19880213
- 主分类号： C09K3/10
- IPC分类号： C09K3/10 ; C08F220/36 ; C08F222/04 ; C08F246/00 ; C08G18/62 ; C08G18/72 ; C09D133/06 ; C09D175/04
摘要：
Copolymers useful in binders for two-component coating compounds or sealing compounds are copolymers having a weight average molecular weight, determined by the gel permeation chromatography method, of from 1500 to 75,000 of olefinically unsaturated compounds containing chemically incorporated moieties capable of undergoing an addition reaction with hydroxyls wherein the copolymers contain, as hydroxyl reactive groups, both(i) from 0.3 to 7.0% by weight of free isocyanate groups and(ii) from 1 to 25% by weight of acid anhydride groups, calculated as C.sub.4 H.sub.2 O.sub.3,in a chemically bound form.
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