发明授权
US5175249A Process for the isolation and purification of polyarylene sulphides 失效
多氯联苯的分离和纯化方法

Process for the isolation and purification of polyarylene sulphides
摘要:
This invention relates to a process for the isolation and purification of polyarylene sulphides, preferably polyphenylene sulphides, from their reaction mixture. The process requires no organic solvents for the purification (washing) of the polymer.
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