发明名称 |
Base neutralized, stable, aqueous dispersion of a hydroxyl functional acrylic polymer and coating compositions prepared therefrom |
摘要 |
A base neutralized, stable, aqueous dispersion of a hydroxyl functional acrylic polymer containing less than 1 percent acid, having a number average molecular weight ranging from about 500 to about 4500 and having an acid value of at least about 1.5 and no greater than about 10; is prepared from a vinyl monomer component containing at least about 50 percent 2-hydroxyethyl acrylate and at least one other comonomer. The proportion of each monomer is selected so that the resultant polymer forms stable dispersion in water without externally added surfactant. The hydroxyl functional acrylic polymer is especially advantageous in the formulation of waterborne coating compositions which are capable of crosslinking with aminoplast and polyisocyanate curing agents to form a cured film. Furthermore, the hydroxyl functional acrylic polymer is useful as a surfactant in the preparation of dispersion polymers by dispersion polymerization.
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申请公布号 |
US5342878(A) |
申请公布日期 |
1994.08.30 |
申请号 |
US19930013139 |
申请日期 |
1993.02.03 |
申请人 |
PPG INDUSTRIES, INC. |
发明人 |
DAS, SURYYA K.;KILIC, SONER |
分类号 |
C08F220/28;C08L61/20;C09D133/06;C09D133/14;(IPC1-7):C08L31/00 |
主分类号 |
C08F220/28 |
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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