发明名称 |
Stable dispersions of polymers in polyfunctional compounds having a plurality of active hydrogens and polyurethanes produced therefrom |
摘要 |
A stable copolymer dispersion is prepared by addition copolymerization of (1) a monomeric adduct of an active hydrogen compound, e.g., a polyether polyol, and an acrylyl compound such as methacryloyl chloride with (2) ethylenically unsaturated monomer(s), e.g., styrene or a mixture thereof with acrylonitrile, while (1) and (2) are dispersed or dissolved in an excess of an active hydrogen polyfunctional compound such as a polyether polyol. The molar ratio of acrylyl moiety to active hydrogen compound is less than 0.1:1. The resulting dispersion has a controlled particle size and a viscosity such that it is suitably employed in the production of polyurethane foams.
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申请公布号 |
US4460715(A) |
申请公布日期 |
1984.07.17 |
申请号 |
US19810320160 |
申请日期 |
1981.11.10 |
申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
HOFFMAN, DWIGHT K.;HARRIS, ROBERT F.;TEFERTILLER, NANCY B.;RAINS, RANDALL C. |
分类号 |
C08F283/06;C08F291/08;C08G18/40;C08G18/63;C08G18/81;(IPC1-7):C08G18/14;C08G18/30 |
主分类号 |
C08F283/06 |
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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