发明授权
US5286782A Coating composition of an acrylic polymer, polyol and polyisocyanate
crosslinking agent
失效
丙烯酸聚合物,多元醇和多异氰酸酯交联剂的涂料组合物
- 专利标题: Coating composition of an acrylic polymer, polyol and polyisocyanate crosslinking agent
- 专利标题(中): 丙烯酸聚合物,多元醇和多异氰酸酯交联剂的涂料组合物
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申请号: US937281申请日: 1992-08-31
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公开(公告)号: US5286782A公开(公告)日: 1994-02-15
- 发明人: Douglas M. Lamb , John A. Simms
- 申请人: Douglas M. Lamb , John A. Simms
- 申请人地址: DE Wilmington
- 专利权人: E. I. Du Pont de Nemours and Company
- 当前专利权人: E. I. Du Pont de Nemours and Company
- 当前专利权人地址: DE Wilmington
- 主分类号: C08F8/30
- IPC分类号: C08F8/30 ; C08G18/32 ; C08G18/62 ; C08G18/65 ; C08L75/04
摘要:
A coating composition primarily used as a clear coat of a clearcoat/color coat automotive finish; the composition has a film forming binder solids content of about 30-70% by weight contains about(A) 50-80% by weight, based on the weight of the binder, of an acrylic polymer of polymerized monomers of styrene, and two methacrylate monomers and a hydroxy alkyl methacrylate or acrylate each having 1-4 carbon atoms in the alkyl group and the polymer has a number average molecular weight of about 1,000-12,000 and a calculated Tg of at least 40.degree. C. and(B) 1-20% by weight, based on the weight of the binder, of a polyol component and(C) 10-49% by weight, based on the weight of the binder, of an organic polyisocyanate.
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