发明名称 |
Copolymerization in water soluble polyol with controlled reaction with the polyol and aqueous coatings containing the resulting copolymer solution |
摘要 |
Methods are disclosed for the production of a water dispersible solution of acidic copolymer in water soluble polyol with controlled limited reaction between the copolymer and the polyol. This method comprises copolymerizing monoethylenically unsaturated monomers including a proportion of carboxyl-functional monomer providing dispersibility in water with the aid of a base and from 0.5%-5%, based on the total weight of monomers, of a monoethylenically unsaturated monomer carrying a reactive group selected from dicarboxylic acid anhydride functionality and N-methylol functionality, the copolymerization being carried out in solution in a water soluble polyol. This copolymerization is preceded by or carried out under conditions causing substantially complete reaction between the anhydride or the N-methylol functionality in the reactive monomer, and the hydroxy groups in the polyol. Aqueous coating compositions are provided by dispersing the copolymer solution in water with the aid of a volatile base.
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申请公布号 |
US4263192(A) |
申请公布日期 |
1981.04.21 |
申请号 |
US19790042890 |
申请日期 |
1979.05.29 |
申请人 |
DESOTO, INC. |
发明人 |
SEKMAKAS, KAZYS;SHAH, RAJ |
分类号 |
C09D157/04;(IPC1-7):C08K5/05 |
主分类号 |
C09D157/04 |
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