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1.发明授权Process for the manufacture of polymer foams containing esters of tertiary alcohols as side groups 失效用于制造含有作为侧面组合物的醇类的聚合物的方法
公开(公告)号：US3760047A
公开(公告)日：1973-09-18
申请号：US3760047D
申请日：1970-12-04
Applicant: BASF AG
CPC classification number: C08J9/02
Abstract: A process for the manufacture of foams by heating polymers containing polymerized units of esters of ethylenically unsaturated polymerizable acids having three or four carbon atoms with tert-butanol at elevated temperatures wherein a pH of from 2.0 to 0.1 is set up in aqueous systems of the polymers, the water is evaporated and the residue is heated to temperatures above the decomposition temperature of the carboxylic esters.
Abstract translation: 通过将含有三个或四个碳原子的烯属不饱和可聚合酸的酯的聚合单元的聚合物与叔丁醇在高温下加热泡沫的方法，其中将pH为2.0至0.1的聚合单元在聚合物的水性体系中 ，将水蒸发并将残余物加热至高于羧酸酯分解温度的温度。
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