Preparation of silica reinforced polyisoprene-rich rubber composition and tire with component thereof
    12.
    发明授权
    Preparation of silica reinforced polyisoprene-rich rubber composition and tire with component thereof 失效
    二氧化硅增强的富含聚异戊二烯的橡胶组合物和其组分的轮胎的制备

    公开(公告)号:US07473724B2

    公开(公告)日:2009-01-06

    申请号:US11058531

    申请日:2005-02-15

    IPC分类号: C08K5/15

    CPC分类号: B60C1/0016

    摘要: This invention relates to the preparation of a cis 1,4-polyisoprene rubber-rich rubber composition containing precipitated silica which has been pre-treated with a fatty alcohol and/or epoxidized soybean oil together with an organosilane containing polysulfide coupling agent and to tires having at least one component comprised of such rubber composition. The invention particularly relates to a process of (a) preparing a natural rubber-rich rubber composition comprised of pre-treating precipitated silica aggregates prior to blending with, or in the presence of, dry natural rubber with a fatty alcohol and/or epoxidized soybean oil to the exclusion of sulfur curative for the natural rubber, mixing an organalkoxysiloxane based polysulfide coupling agent with said dry natural rubber coincidentally with or subsequent to said precipitated silica aggregate fatty alcohol and/or epoxidized soybean oil pre-treatment to form a composite thereof, to the exclusion of sulfur curative, followed by (b) mixing the resulting rubber mixture with sulfur curative and (c) curing the resulting rubber composition.

    摘要翻译: 本发明涉及含有沉淀二氧化硅的顺式1,4-聚异戊二烯橡胶丰富橡胶组合物的制备,该组合物已经用脂肪醇和/或环氧化大豆油与含有机硅烷的多硫化物偶联剂预处理,并且具有 至少一种由这种橡胶组合物组成的组分。 本发明特别涉及(a)制备富含天然橡胶的橡胶组合物的方法,所述橡胶组合物在与天然橡胶与脂肪醇和/或环氧化大豆混合之前或在干燥天然橡胶存在下预处理沉淀二氧化硅骨料 油,以排除天然橡胶的硫固化剂,将所述有机烷氧基硅氧烷基多硫化物偶联剂与所述干燥天然橡胶在所述沉淀二氧化硅骨料脂肪醇和/或环氧化大豆油预处理中或之后巧合地混合以形成其复合物, 排除硫固化剂,然后(b)将所得橡胶混合物与硫固化剂混合,和(c)固化所得橡胶组合物。

    Rubber composition containing silica reinforcement and functionalized crosslinks and products with component thereof
    13.
    发明授权
    Rubber composition containing silica reinforcement and functionalized crosslinks and products with component thereof 有权
    含有二氧化硅增强剂和官能化交联物的橡胶组合物及其组分

    公开(公告)号:US09074073B2

    公开(公告)日:2015-07-07

    申请号:US12631880

    申请日:2009-12-07

    IPC分类号: C08K3/36 C08K5/47

    CPC分类号: C08K5/47 C08L21/00

    摘要: The invention relates to a rubber composition which contains silica reinforcement and functionalized crosslinks, particularly crosslinked functionalized precipitated silica, including sulfur crosslinked functionalized silica and associated cured rubber compositions, and to articles of manufacture having a component thereof such as, for example tires. A dimercaptothiadiazole is used to form the crosslinked network within the rubber composition. The mercapto moieties of said dimercaptothiadiazole are desirably protected from prematurely reacting with, for example, diene-based elastomers and sulfur-containing silica coupling agents by pre-reaction with an aromatic carboxylic acid chloride or by reacting in situ with an aromatic carboxylic acid.

    摘要翻译: 本发明涉及一种橡胶组合物,其包含二氧化硅增强物和官能化交联剂,特别是交联的官能化沉淀二氧化硅,包括硫交联的官能化二氧化硅和相关的固化橡胶组合物,以及具有其组分例如轮胎的制品。 二巯基噻二唑用于在橡胶组合物内形成交联网络。 所述二巯基噻二唑的巯基部分希望通过与芳族羧酸氯化物预反应或通过与芳族羧酸原位反应来防止例如二烯类弹性体和含硫二氧化硅偶联剂过早反应。

    Rubber compounds containing polyoxyalkylene amines
    20.
    发明授权
    Rubber compounds containing polyoxyalkylene amines 有权
    含有聚氧化烯胺的橡胶化合物

    公开(公告)号:US07714051B2

    公开(公告)日:2010-05-11

    申请号:US11462740

    申请日:2006-08-07

    摘要: The present invention is directed to a rubber compound, such as for use in tires, containing one or more polyoxyalkylene amines, such as to reduce the amount of silane coupling agent conventionally used therein. The presence of the polyoxyalkylene amine(s) allows for the silane coupling agent to be present in a low percent by weight of silica without substantially sacrificing the performance characteristics of the rubber compound. In one embodiment, the rubber compound includes 100 phr of a natural elastomer, a synthetic elastomer, or combinations thereof, no less than about 20 phr silica, a silane coupling agent present in an amount no more than 8% by weight of the silica, and about 2 phr to about 10 phr of at least one polyoxyalkylene amine defined by a primary amino group attached to the terminus of a polyether backbone.

    摘要翻译: 本发明涉及一种橡胶化合物,例如用于含有一种或多种聚氧化烯胺的轮胎中的橡胶化合物,以减少其中常规使用的硅烷偶联剂的量。 聚氧亚烷基胺的存在允许硅烷偶联剂以低重量百分比的二氧化硅存在,而基本上不会损失橡胶化合物的性能特征。 在一个实施方案中,橡胶化合物包括100phr的天然弹性体,合成弹性体或其组合,不少于约20phr的二氧化硅,以不超过二氧化硅的8重量%的量存在的硅烷偶联剂, 和约2phr至约10phr的由连接至聚醚主链末端的伯氨基定义的至少一个聚氧化烯胺。