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A process for preparing foams from polymers or copolymers of tert-butyl acrylate or tert-butyl methacrylate.
A process for preparing foams from polymers or copolymers of tert-butyl acrylate or tert-butyl methacrylate.
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机译:由丙烯酸叔丁酯或甲基丙烯酸叔丁酯的聚合物或共聚物制备泡沫的方法。
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摘要
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.
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