发明名称 |
Use of aqueous dispersion of polyol comprising graft polyester polyacrylate copolymer and blocked aliphatic polyisocyanate in automotive series lacquering, especially stone chip barrier coat |
摘要 |
The use of an aqueous dispersion of a polyol component, comprising 20-60 wt.% unsaturated polyester polyol and 40-80 wt.% polyacrylate, and 1-70 wt.% (with respect to total solids) of a blocked aliphatic polyisocyanate component for light-stable, elastic, physically fast-drying coatings in series lacquering of cars is claimed. The use of an aqueous dispersion of (A) a polyol component and (B) a polyisocyanate component for light-stable, elastic, physically fast-drying coatings in series lacquering of cars is claimed. The polyol component comprises 20-60 wt.% polyester component (AI) with 10-60 wt.% units derived from 8-30 carbon (C) aliphatic (un)saturated monocarboxylic acid(s) and 0.4-5 wt.% units derived from 3-8 C alpha , beta -unsaturated mono- or dicarboxylic acid(s) or anhydride(s) capable of free radical polymerization and 40-80 wt.% polyacrylate component (AII). The polyisocyanate component (B) comprises blocked aliphatic polyisocyanate(s) and is used in an amount of 1-70 wt.% with respect to total solids in the dispersion.
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申请公布号 |
DE19837063(A1) |
申请公布日期 |
2000.02.24 |
申请号 |
DE19981037063 |
申请日期 |
1998.08.17 |
申请人 |
BAYER AG |
发明人 |
IRLE, CHRISTOPH;BLUM, HARALD;PETZOLDT, JOACHIM;MUELLER, HEINO |
分类号 |
C08F283/01;C08G18/63;C08G18/80;C09D167/06;C09D175/04;C09D175/06;(IPC1-7):C09D175/06;C09D151/08;C08G63/48;C08G63/52;C08G63/20 |
主分类号 |
C08F283/01 |
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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