Method for the continuous manufacturing of silicone rubber composition
    72.
    发明授权
    Method for the continuous manufacturing of silicone rubber composition 失效
    连续制造硅橡胶组合物的方法

    公开(公告)号:US6013701A

    公开(公告)日:2000-01-11

    申请号:US174978

    申请日:1998-10-19

    摘要: A method for continuous preparation of a high consistency or liquid silicone rubber base does not cause abrasive wear of the extruder screw and of the extruder cylinder or blackening of the silicone rubber base even when the latter is admixed with such fillers as an inorganic filler in the form of a diatomaceous earth powder, quartz or a similar large-grained and hard substance, or with a fumed silica, sedimentary silica, or a similar reinforcing silica filler. The method comprises continuously kneading the following components in a multiple-stage shear type single-screw extruder: (A) a freely-flowable powdered silicone rubber mixture having its main components in the form of (a) a cross-linkable polydiorganosiloxane with a viscosity exceeding 1.times.10.sup.5 mPa.multidot.s at 25.degree. C. and (b) an inorganic filler, and (B) a high consistency silicone rubber base having its main components in the form of (a) a cross-linkable polydiorganosiloxane with a viscosity exceeding 1.times.10.sup.5 mPa.multidot.s at 25.degree. C. and (c) a reinforcing silica filler, or a liquid silicone rubber base having its main components in the form of (d) a cross-linkable polydiorganosiloxane with a viscosity below 1.times.10.sup.5 mPa.multidot.s at 25.degree. C. and (c) a reinforcing silica filler.

    摘要翻译: 连续制备高稠度或液体硅橡胶基体的方法不会引起挤出机螺杆和挤出机圆筒的磨损或硅橡胶基底的黑化,即使将后者与诸如无机填料的填料混合在一起 硅藻土粉末,石英或类似的大颗粒和硬物质的形式,或与煅制二氧化硅,沉积二氧化硅或类似的增强二氧化硅填料形成。 该方法包括在多级剪切式单螺杆挤出机中连续捏合以下组分:(A)可自由流动的粉状硅橡胶混合物,其主要成分为(a)可交联的聚二有机硅氧烷,其粘度 在25℃下超过1×10 5 mPax,(b)无机填料,(B)高稠度硅橡胶基质,其主要成分为(a)可交联的聚二有机硅氧烷,其粘度在25℃时粘度超过1×10 5 mPax (c)增强二氧化硅填料或其主要组分为(d)可交联的聚二有机硅氧烷的液体硅橡胶基质,其粘度在25℃时粘度低于1×10 5 mPax,(c)a 增强二氧化硅填料。

    Vulcanizable rubber composition
    75.
    发明授权
    Vulcanizable rubber composition 失效
    可硫化橡胶组合物

    公开(公告)号:US5037868A

    公开(公告)日:1991-08-06

    申请号:US284045

    申请日:1988-12-14

    CPC分类号: H01B3/441 C08F255/04

    摘要: A vulcanizable ethylene-propylene rubber composition with improved thermal aging resistance is made from ethylene-propylene rubber, an alkoxysilane such as N-(N-vinylbenzylaminoethyl)-gamma-aminopropyltrimethoxysilane or its hydrochloride, a reinforcing filler, and a vulcanizing agent. These vulcanizable ethylene-propylene rubber compositions can also contain vinyl group-containing organopolysiloxane gum. These compositions cure to rubber with excellent mechanical properties, excellent electrical insulation properties, and thermal aging resistance which makes them suitable for electrical wire insulation.

    摘要翻译: 具有改善的耐热老化性的可硫化的乙丙橡胶组合物由乙丙橡胶,N-(N-乙烯基苄基氨基乙基) - 氨基丙基三甲氧基硅烷或其盐酸盐,增强填料和硫化剂等烷氧基硅烷制成。 这些可硫化的乙丙橡胶组合物也可以含有含乙烯基的有机聚硅氧烷胶。 这些组合物固化成橡胶,具有优异的机械性能,优异的电绝缘性能和耐热老化性,使其适用于电线绝缘。

    Method for curing organosiloxane compositions
    77.
    发明授权
    Method for curing organosiloxane compositions 失效
    固化有机硅氧烷组合物的方法

    公开(公告)号:US4742145A

    公开(公告)日:1988-05-03

    申请号:US11467

    申请日:1987-02-05

    CPC分类号: C08J3/24 C08J2383/04

    摘要: A cured silicone rubber is produced by heating at a temperature of at least 150 degrees C. under a pressure of at least 9.8 kilopascals gauge pressure a silicone rubber composition comprising an alkenyl-containing organopolysiloxane, an organohydrogenpolysiloxane and finely divided silica in the absence of a hydrosilation catalyst or organoperoxide.

    摘要翻译: 通过在至少9.8千帕表压的压力下在至少150摄氏度的温度下加热固化的硅橡胶,所述硅橡胶组合物包含含链烯基的有机聚硅氧烷,有机氢聚硅氧烷和细分二氧化硅,在不存在 硅氢化催化剂或有机过氧化物。

    Bonding primer composition
    78.
    发明授权
    Bonding primer composition 失效
    粘合底漆组合物

    公开(公告)号:US4681636A

    公开(公告)日:1987-07-21

    申请号:US865506

    申请日:1986-05-21

    CPC分类号: C09J183/04 Y10T428/31612

    摘要: The novel primer compositions of this invention comprise (1) a silane containing at least one t-butyl peroxy group and no silicon-bonded ethylenically unsaturated hydrocarbon radicals, (2) an organosilicon compound containing at least two alkoxy groups and at least one addition- or condensation reactive functional group per molecule, (3) an organotitanate ester and (4) sufficient organic solvent to achieve a solution of the desired viscosity. These compositions cohesively bond silicone rubber, particularly fluorosilicone rubber, to a variety of substrates.

    摘要翻译: 本发明的新型底漆组合物包含(1)含有至少一个叔丁基过氧基并且不与硅键合的烯键式不饱和烃基的硅烷,(2)含有至少两个烷氧基的有机硅化合物和至少一种加成 - 或缩合反应性官能团,(3)有机钛酸酯和(4)足够的有机溶剂以获得所需粘度的溶液。 这些组合物将硅橡胶,特别是氟硅橡胶粘结粘合到各种基材上。