专利名称：Process for production of
polyarylenesulfides
发明人：Yukichika Kawakami,Yo Iizuka,Takayuki Katto申请号：US07/640747申请日：19910114公开号：US05179194A公开日：19930112
摘要：Disclosed herein is a process for the production of a polyarylenesulfide, whereinan alkali metal sulfide is reacted with a dihalo-aromatic compound in an organic amidesolvent. The process comprises causing at least one compound selected from the oxidesand hydroxides of alkaline earth metals to exist in a proportion not less than 0.01 molebut less than 0.1 mole per mole of the alkali metal sulfide charged in the reactionsystem, and performing the reaction of the alkali metal sulfide and dihalo-aromaticcompound while raising the temperature by at least two stages in the presence of waterin an amount defined in a specific range. A high-molecular weight linearpolyarylenesulfide can be provided without use of a crosslinking agent or apolymerization aid.
申请人：KUREHA KAGAKU KOGYO K.K.
代理机构：Lowe, Price, LeBlanc & Becker
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