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公开(公告)号：US4061646A
公开(公告)日：1977-12-06
申请号：US701227
申请日：1976-06-30
IPC分类号： C07D277/72
CPC分类号： C07D277/72
摘要： Crude 2-mercaptobenzothiazole is purified by preparing a crude, liquid 2-mercaptobenzothiazole by reacting aniline, carbon disulfide and sulfur under elevated pressure at high temperatures; extracting said crude, liquid 2-mercaptobenzothiazole in the molten state with cold carbon disulfide by liquid-liquid extraction thereby forming a slurry of 2-mercaptobenzothiazole crystals; and filtering and drying said crystals.
摘要翻译： 通过在高温下在升高的压力下使苯胺，二硫化碳和硫反应制备粗的液体2-巯基苯并噻唑来纯化粗2-巯基苯并噻唑。 通过液 - 液萃取，用冷二硫化碳萃取处于熔融状态的粗液体2-巯基苯并噻唑，从而形成2-巯基苯并噻唑晶体的浆液; 并过滤并干燥所述晶体。
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公开(公告)号：US4737542A
公开(公告)日：1988-04-12
申请号：US927956
申请日：1986-11-07
申请人： Tatsuo Kifune , Takeharu Ito
发明人： Tatsuo Kifune , Takeharu Ito
IPC分类号： C08L7/00 , C01B17/00 , C01B17/02 , C01B17/12 , C08J3/22 , C08K3/00 , C08K3/06 , C08K5/00 , C08K5/01 , C08K9/00 , C08K9/04 , C08L21/00 , C08L23/00 , C08L33/00 , C08L33/02 , C08L101/00
CPC分类号： C08J3/226 , C01B17/0243 , C08K3/06 , C08J2321/00
摘要： An improved vulcanizing composition including sulfur and a dispersing agent which is useful for improving the dispersibility of sulphur used in vulcanizing rubber including an effective amount of rubber in combination with a rubber processing oil. A method for preparation of the improved vulcanizing composition includes combining a rubber processing oil and an effective amount of rubber to produce a dispersing agent containing about 0.1-30% rubber by total weight of the dispersing agent, and mixing the dispersing agent and sulphur, optionally in the presence of a solvent which is subsequently removed, to produce an improved vulcanizing compound.
摘要翻译： 一种改进的硫化组合物，包括硫和分散剂，其可用于改善硫化橡胶中使用的硫的分散性，包括有效量的橡胶与橡胶加工油的组合。 制备改进的硫化组合物的方法包括将橡胶加工油和有效量的橡胶组合以制备含有分散剂总重量的约0.1-30％橡胶的分散剂，并且任选地混合分散剂和硫 在随后除去的溶剂的存在下，产生改进的硫化化合物。
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