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公开(公告)号:US4620970A
公开(公告)日:1986-11-04
申请号:US676849
申请日:1984-11-30
申请人: Takeo Suzumori , Jun Kokubu , Minoru Kubota
发明人: Takeo Suzumori , Jun Kokubu , Minoru Kubota
CPC分类号: B01J31/04 , B01J31/28 , C01B13/0211 , B01J27/053 , B01J27/10 , B01J27/25
摘要: A method for generating oxygen gas by contacting a peroxygen compound in water with a catalyst composed of a cobalt salt and an organic carboxylic acid or a salt thereof wherein the carboxylic acid has at least one hydroxyl group and at least one carboxyl group.
摘要翻译: 通过使水中的过氧化合物与由钴盐和有机羧酸或其盐组成的催化剂或其盐接触而产生氧气的方法,其中羧酸具有至少一个羟基和至少一个羧基。
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公开(公告)号:US4125540A
公开(公告)日:1978-11-14
申请号:US873512
申请日:1978-01-30
IPC分类号: C07D323/06
CPC分类号: C07D323/06
摘要: A process for stabilizing trioxane, characterized by adding thereto a specific trivalent organic phosphorus compound is disclosed.
摘要翻译: 公开了稳定三恶烷的方法,其特征在于向其中加入特定的三价有机磷化合物。
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公开(公告)号:US4189565A
公开(公告)日:1980-02-19
申请号:US971565
申请日:1978-12-20
申请人: Akitoshi Sugio , Akira Amemiya , Tetsuya Abe , Tomotaka Furusawa , Takeo Suzumori , Mutsuhiko Takeda , Masaharu Kimura , Yoshiharu Ohtsuki , Katsumasa Tanaka , Toshikazu Umemura , Kiyokazu Kawaguchi , Michio Ohba
发明人: Akitoshi Sugio , Akira Amemiya , Tetsuya Abe , Tomotaka Furusawa , Takeo Suzumori , Mutsuhiko Takeda , Masaharu Kimura , Yoshiharu Ohtsuki , Katsumasa Tanaka , Toshikazu Umemura , Kiyokazu Kawaguchi , Michio Ohba
IPC分类号: C07D323/06 , C08F2/10 , C08G2/00 , C08G2/10 , C08G2/18
摘要: A process for polymerizing trioxane made from an aqueous solution of methanol-containing formaldehyde by a conventional method or copolymerizing the trioxane with another monomer, characterized bycooling the trioxane to crystallize it,allowing the trioxane in a crystalline state to stand in an open system in an atmosphere of air or an inert gas to remove polyoxymethylene dimethoxide from the trioxane,melting the trioxane, andpolymerizing the trioxane or copolymerizing the trioxane and the another monomer.
摘要翻译: 聚合由甲醇含甲醛的水溶液通过常规方法或将三恶烷与另一种单体共聚的三恶烷的方法,其特征在于冷却三恶烷以使其结晶,使得结晶状态的三恶烷以开放体系 空气或惰性气体气氛,从三恶烷中除去聚甲醛二甲氧基化物,熔融三恶烷,聚合三恶烷或共聚三恶烷和另一种单体。
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公开(公告)号:US4814424A
公开(公告)日:1989-03-21
申请号:US120314
申请日:1987-11-13
申请人: Takeo Suzumori , Isamu Masumoto , Mitsuo Nakagawa , Yukihiro Iha
发明人: Takeo Suzumori , Isamu Masumoto , Mitsuo Nakagawa , Yukihiro Iha
CPC分类号: C08G2/36
摘要: An improved method of stabilizing a polyoxymethylene copolymer, which comprises(1) heat-melting a crude copolymer of trioxane and a cyclic ether and/or a cyclic acetal to form a first stabilized copolymer having a decomposition ratio (D.sub.220.sup.60), determined when it is heated at 220.degree. C. for 60 minutes in vacuum, of up to 2% by weight, and then(2) bringing the first stabilized copolymer into contact with steam containing 0.01 to 5% by weight of a basic compound at a temperature of at least 100.degree. C. but not exceeding the melting point of the copolymer to form a second stabilized copolymer.
摘要翻译: 一种稳定聚甲醛共聚物的改进方法,其包括(1)将三恶烷和环醚和/或环缩醛的粗共聚物加热熔融以形成具有分解比(D22060)的第一稳定共聚物,当其为 在220℃下真空加热60分钟,最多达2重量%,然后(2)使第一稳定的共聚物与含有0.01至5重量%碱性化合物的蒸汽在温度为 至少100℃,但不超过共聚物的熔点以形成第二稳定的共聚物。
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