发明授权
US06482475B2 Thermosetting compositions containing hydroxy functional polymers prepared by atom transfer radical polymerization
失效
含有通过原子转移自由基聚合制备的羟基官能聚合物的热固性组合物
- 专利标题： Thermosetting compositions containing hydroxy functional polymers prepared by atom transfer radical polymerization
- 专利标题（中）： 含有通过原子转移自由基聚合制备的羟基官能聚合物的热固性组合物
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申请号： US09934385申请日： 2001-08-21
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公开(公告)号： US06482475B2公开(公告)日： 2002-11-19
- 发明人: Karen A. Barkac , Simion Coca , James R. Franks , Kurt A. Humbert , Paul H. Lamers , Roxalana L. Martin , James B. O'Dwyer , Kurt G. Olson , Daniela White
- 申请人： Karen A. Barkac , Simion Coca , James R. Franks , Kurt A. Humbert , Paul H. Lamers , Roxalana L. Martin , James B. O'Dwyer , Kurt G. Olson , Daniela White
- 主分类号： C08G1862
- IPC分类号： C08G1862
摘要：
A thermosetting composition comprising a co-reactable solid, particulate mixture of (a) capped polyisocyanate crosslinking agent, e.g., a trimer of 1-isocyanato-3,3,5 -trimethyl-5-isocyanatomethylcyclohexane capped with e-caprolactam or 1H-2,5-dimethyl pyrazole, and (b) hydroxy functional polymer, is described. The hydroxy functional polymer is prepared by atom transfer radical polymerization and has well defined polymer chain architecture and polydispersity index of less than 2.5. The thermosetting compositions of the present invention have utility as powder coatings compositions.
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