发明授权
US3728400A Process for preparation of polymercaptans 失效
制备聚合物的方法

Process for preparation of polymercaptans
摘要:
Polymercaptans especially suitable as epoxy resin curing agents are produced by reacting a polyhalo compound with sodium sulfhydrate in the presence of dimethyl sulfoxide, dimethylformamide, a dimethylformamide-(lower) alkyl alcohol mixture or a dimethyl sulfoxide-(lower)alkyl alcohol mixture as a solvent for the reaction system.
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