Rubber powder compositions and process for the production thereof
    3.
    发明授权
    Rubber powder compositions and process for the production thereof 有权
    橡胶粉组合物及其制备方法

    公开(公告)号:US06433064B1

    公开(公告)日:2002-08-13

    申请号:US09459975

    申请日:1999-12-14

    IPC分类号: C08K334

    摘要: Finely divided, pulverulent rubbers containing filler which contain further processing and vulcanization auxiliaries necessary for the production of vulcanizable rubber mixtures, which rubbers are pourable even after exposure to mechanical action, and to a process for the production thereof. The rubber powder is obtained within two precipitation steps. These rubber powders are used for the production of vulcanizable rubber mixtures. The fillers used, which comprise not only precipitated silicas but also carbon blacks known in the rubber industry, are optionally surface modified with organosilicon compounds.

    摘要翻译: 包含进一步加工的填料的粉碎橡胶以及即使在暴露于机械作用之后橡胶也可倾倒的可硫化橡胶混合物所需的硫化助剂及其生产方法。 在两个沉淀步骤中获得橡胶粉末。 这些橡胶粉末用于生产可硫化的橡胶混合物。 所使用的填料不仅包括沉淀二氧化硅,而且包括在橡胶工业中已知的炭黑,任选用有机硅化合物表面改性。

    Pulverulent rubber powders comprising modified fillers, processes for their preparation and their use
    4.
    发明授权
    Pulverulent rubber powders comprising modified fillers, processes for their preparation and their use 有权
    包含改性填料的粉末状橡胶粉末,其制备方法及其用途

    公开(公告)号:US06329449B1

    公开(公告)日:2001-12-11

    申请号:US09401850

    申请日:1999-09-22

    IPC分类号: C08J307

    摘要: The invention relates to a process for the preparation of finely divided rubbers (rubber powders) by precipitation from aqueous mixtures, which comprise filler in the form of suspensions, water-soluble salts of a metal of groups IIa, IIb, IIIa and VIII of the periodic table of the elements arid a rubber latex (polymer latex), aqueous emulsions of a rubber or rubber solution, in which one or more organosilicon compound(s) containing at least one alkoxy group is or are dissolved or emulsified, optionally in the presence of a surface-active substance, in water, or the compounds mentioned are mixed directly, optionally with a surface-active substance, with an aqueous suspension of an oxidic or silicatic finely divided filler or a mixture of these fillers at a temperature of 10 to 60° C., preferably at room temperature, while stirring, the amount of this mixture envisaged for incoporation in the rubber, based on the filler content, in general being divided into two batches.

    摘要翻译: 本发明涉及一种通过从含水混合物中沉淀制备细碎橡胶(橡胶粉末)的方法,该方法包括悬浮液形式的填料,IIa,IIb,IIIa和VIII族金属的水溶性盐 元素周期表和橡胶胶乳(聚合物胶乳),橡胶或橡胶溶液的水性乳液,其中一种或多种含有至少一个烷氧基的有机硅化合物被溶解或乳化,任选地存在 表面活性物质在水中或所提及的化合物任选地与表面活性物质混合,与氧化或硅化细分散填料或这些填料的混合物的水悬浮液在10〜 60℃,优选在室温下,同时搅拌,基于填料含量,设想用于在橡胶中进行开孔的该混合物的量通常被分成两批。