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6 条记录 (耗时 0.018 秒)

    Precipitated silica pigment for silicone rubber
    1.
    发明授权
    Precipitated silica pigment for silicone rubber 失效
    硅橡胶沉淀二氧化硅颜料

    公开(公告)号：US4463108A

    公开(公告)日：1984-07-31

    申请号：US407183

    申请日：1982-08-11

    申请人： Melvin P. Wagner ,  Joseph P. Tultz ,  Thomas G. Krivak

    发明人： Melvin P. Wagner ,  Joseph P. Tultz ,  Thomas G. Krivak

    IPC分类号： C08K9/02 ,  C09C1/30 ,  C09C1/28

    CPC分类号： B82Y30/00 ,  C08K9/02 ,  C09C1/3054 ,  C01P2002/02 ,  C01P2004/64 ,  C01P2004/80 ,  C01P2006/12 ,  C01P2006/80

    摘要： Amorphous precipitated high structure silica pigment useful in the reinforcement of silicone rubber is described. The silica pigment is treated with an aqueous solution of a metal, e.g., calcium and barium, which forms a relatively water insoluble, white or colorless sulfate salt in amounts sufficient to provide at least an equal molar amount of the metal compared to the amount of alkali metal in the silica. Silicone rubber reinforced with such silica pigment exhibits a water swell of less than 4 volume percent.

    摘要翻译： 描述了可用于增强硅橡胶的无定形沉淀高结构二氧化硅颜料。 二氧化硅颜料用金属水溶液（例如钙和钡）处理，其形成相对不溶于水的白色或无色硫酸盐，其量足以提供至少等摩尔量的金属，与 二氧化硅中的碱金属。 用这种二氧化硅颜料增强的硅橡胶的水膨胀小于4体积％。

    Rubber compositions
    4.
    发明授权
    Rubber compositions 失效
    橡胶组合物

    公开(公告)号：US4474908A

    公开(公告)日：1984-10-02

    申请号：US382542

    申请日：1982-05-27

    申请人： Melvin P. Wagner

    发明人： Melvin P. Wagner

    IPC分类号： C08K5/54 ,  C08K9/12 ,  C08K3/36 ,  C08K5/34

    CPC分类号： C08K5/54

    摘要： The abrasion resistance of siliceous filler-reinforced rubber vulcanizates is improved by adding to the unvulcanized rubber composition silane coupling agent comprising a mixture of a mercaptosilane, such as mercaptopropyltrimethoxysilane, and an alkyl alkoxysilane, such as methyltrimethoxysilane. The mercaptosilane is present in amounts of between 0.3 and 15 parts per hundred parts of rubber, and the weight ratio of mercaptosilane to alkyl alkoxysilane is between 0.15:1 and 15:1. Preferably, the silanes in a ratio of about 1:1 are admixed with a hydrocarbon process oil and the oil-silane mixture added to the siliceous filler-rubber mixture.

    摘要翻译： 通过向未硫化橡胶组合物中加入包含巯基硅烷如巯基丙基三甲氧基硅烷和烷基烷氧基硅烷如甲基三甲氧基硅烷的混合物的硅烷偶联剂，可以改善硅质填料增强橡胶硫化橡胶的耐磨性。 巯基硅烷的存在量为每100份橡胶0.3至15份，巯基硅烷与烷基烷氧基硅烷的重量比为0.15:1至15:1。 优选地，将约1:1的硅烷与烃加工油混合，并将油 - 硅烷混合物加入到硅质填料 - 橡胶混合物中。

    Gas recombinant separator
    5.
    发明授权
    Gas recombinant separator 失效
    气体重组分离器

    公开(公告)号：US5009971A

    公开(公告)日：1991-04-23

    申请号：US391067

    申请日：1989-08-09

    申请人： Harlan B. Johnson ,  Samuel B. Laferty ,  Melvin P. Wagner ,  Shantilal M. Mohnot

    发明人： Harlan B. Johnson ,  Samuel B. Laferty ,  Melvin P. Wagner ,  Shantilal M. Mohnot

    IPC分类号： D04H1/42 ,  H01M2/16

    CPC分类号： H01M2/1646 ,  D04H1/4318 ,  H01M2/162 ,  H01M2300/0005 ,  Y10T428/259

    摘要： Described is a porous flexible sheet of about 93 to 99.5 weight percent amorphous precipitated silica and from about 0.5 to about 7 weight percent fibrillated, unsintered polymeric material, e.g., polytetrafluoroethylene. The sheet is useful as a separator in absorbed electrolyte gas recombinant batteries, e.g., lead-acid batteries, and has a tensile strength of less than 75 pounds per square inch (0.5 MPa). The sheet preferably has a porosity of from 85 to 92 percent and exhibits an electrical resistance of less than 3.5 milliohm-in.sup.2 /10 mil when saturated with 37 percent sulfuric acid. The sheet is prepared by subjecting a dry homogeneous mixture of the silica and polymeric material, e.g., polytetrafluoroethylene, in the above proportions to mechanical shear blending forces to fibrillate the polymer and thereafter dry forming the resulting admixture into sheet form.

    摘要翻译： 描述了约93至99.5重量％的无定形沉淀二氧化硅和约0.5至约7重量％原纤化的未烧结的聚合物材料例如聚四氟乙烯的多孔柔性片材。 该片材可用作吸收的电解质气体重组电池（例如铅酸电池）中的隔板，并且具有小于75磅/平方英寸（0.5MPa）的拉伸强度。 当用37％硫酸饱和时，片材优选具有85-92％的孔隙率并且表现出小于3.5毫欧姆/英寸2/10密耳的电阻。 通过以上述比例将二氧化硅和聚合物材料（例如聚四氟乙烯）的干均匀混合物经受机械剪切共混力使聚合物原纤化，然后将所得混合物干燥形成片状来制备片材。

    Rubber compositions
    6.
    发明授权
    Rubber compositions 失效
    橡胶组合物

    公开(公告)号：US4436847A

    公开(公告)日：1984-03-13

    申请号：US430108

    申请日：1982-09-30

    申请人： Melvin P. Wagner

    发明人： Melvin P. Wagner

    IPC分类号： C08K5/54 ,  C08K9/06 ,  C08K3/34 ,  C08K3/30

    CPC分类号： C08K5/54 ,  C08K9/06

    摘要： The abrasion resistance of siliceous filler-reinforced rubber vulcanizates is improved by adding to the unvulcanized rubber composition a silane coupling composition comprising a mixture of a silane coupling agent, such as(a) organic silane compounds containing an internal active olefinic linkage,(b) bis(alkoxysilylalkyl)polysulfides,(c) haloalkylsilanes, and(d) silane compounds containing a vinyl functional group in the organofunctional portion of the compound, and an alkyl alkoxysilane, such as methyltrimethoxysilane. The silane coupling agent is present in coupling amounts, e.g., between 0.1 and 50 parts per hundred parts of rubber, and the weight ratio of mercaptosilane to alkyl alkoxysilane is between 0.15:1 and 15:1. Preferably, the silanes are in a ratio of about 1:1, are admixed with a hydrocarbon process oil and the oil-silane mixture added to the siliceous filler-rubber mixture.

    摘要翻译： 通过向未硫化橡胶组合物中添加包含硅烷偶联剂的混合物的硅烷偶联组合物，例如（a）含有内部活性烯键的有机硅烷化合物，（b） 双（烷氧基甲硅烷基烷基）多硫化物，（c）卤代烷基硅烷，和（d）在化合物的有机官能部分含有乙烯基官能团的硅烷化合物和烷基烷氧基硅烷，如甲基三甲氧基硅烷。 硅烷偶联剂以偶联量存在，例如每100份橡胶为0.1至50份，巯基硅烷与烷基烷氧基硅烷的重量比为0.15:1至15:1。 优选地，硅烷的比例约为1:1，与烃加工油和加入到硅质填料 - 橡胶混合物中的油 - 硅烷混合物混合。