发明授权
US3933716A Aqueous dispersions of vinylester/ethylene/ethylenically unsaturated sulfonic acid or derivative thereof copolymers 失效
乙烯基酯/乙烯/烯属不饱和磺酸或其衍生物共聚物的水分散体

Aqueous dispersions of vinylester/ethylene/ethylenically unsaturated
sulfonic acid or derivative thereof copolymers
摘要:
Polymer dispersions having solids contents of from 45 to 65% by weight are continuously produced by copolymerizing a vinyl ester, ethylene and (meth)acrylamidoalkyl sulphonic acid or (meth)acryloyloxyalkyl sulphonic acid or ammonium or alkali salt thereof under an ethylene pressure of from 5 to 120 atms, at a temperature of from 0.degree. to 60.degree.C in the presence of an anionic emulsifier and with the aid of a free radical forming agent.The polymer dispersions are suitable as pigment binders.
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