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    Article having a component of a rubbber composition which contains particles of prevulcanized rubber and a blend of tetrathiodipropionic and trithiodipropionic acids
    5.
    发明公开
    Article having a component of a rubbber composition which contains particles of prevulcanized rubber and a blend of tetrathiodipropionic and trithiodipropionic acids 审中-公开
    包含含有该预硫化的橡胶组合物的橡胶颗粒的成分和tetrathiodipropionic酸和Trithiodipropionsäure的混合物文章

    公开(公告)号：EP1277793A2

    公开(公告)日：2003-01-22

    申请号：EP02013910.1

    申请日：2002-06-24

    申请人： THE GOODYEAR TIRE & RUBBER COMPANY

    发明人： Wideman, Lawson Gibson ,  Balogh, George Frank

    IPC分类号： C08K5/372 ,  C08L21/00 ,  C08J3/22 ,  B60C1/00

    CPC分类号： B60C1/00 ,  B60C1/0016 ,  C08K5/372 ,  C08L21/00

    摘要： The invention relates to articles of manufacture, such as for example, tires and industrial products, which have at least one component comprised of a rubber composition which contains particles of pre-sulfur vulcanized rubber (e.g. ground recycled rubber) and impure tetrathiodipropionic acid, namely a blend comprised primarily of tetrathiodipropionic acid and trithiodipropionic acids of a weight ratio thereof in a range of about 80/20 to about 30/70. Said blend is referred to herein as an S4/S3 blend. The S4/S3 blend may be introduced directly to a rubber composition or may be provided as particles of a composite of said S4/S3 and a particulate support therefor for a purpose of aiding the dispersion of the S4 and S3 within the elastomer host. Representative of such support, or carrier, may be, for example, silica, particularly amorphous precipitated silica, carbon black, clay, starch, calcium carbonate, calcium silicate, titanium dioxide and the like, wherein carbon black is preferred. It is considered herein that an advantageous nature of the invention is to provide such an S4/S3 blend, for example, in a manner to somewhat depress the melting point of the trithiodipropionic acid and therefore promote its processability and incorporation with particles of pre-vulcanized rubber without substantially degrading any beneficial effect thereof. Thus, the invention is intended to be exclusive of use of 100 percent pure tetrathiodipropionic acid and exclusive of relatively high purity trithiodipropionic acid which contains at least 80 percent trithiodipropionic acid.

    摘要翻译： 本发明涉及制造，颜色的制品：如对于实施例，轮胎和工业产品，其具有至少一种组分包括其中含有硫的预硫化的橡胶的颗粒（例如，地再生橡胶）和不纯tetrathiodipropionic酸，即橡胶组合物的 在范围为约80/20其耀眼主要包含tetrathiodipropionic酸和的重量比为trithiodipropionic酸至约30/70。 所述共混物是由如S4 / S3共混物进入称为。 在S4 / S3共混物可以直接引入到橡胶组合物中，或者可以作为所述S4 / S3的复合材料和颗粒状载体为此用于弹性体宿主内辅助S4和S3的分散体的目的的颗粒来提供。 寻求支持，或载体的代表，可以是，例如，二氧化硅，特别是无定形沉淀二氧化硅，炭黑，粘土，淀粉，碳酸钙，硅酸钙，二氧化钛等，worin炭黑是优选的。 它在本发明的有利性质没有考虑的是在S4 / S3共混物，以提供检测，例如，以这样的方式在一定程度上压下trithiodipropionic酸的熔点并因此促进其加工性能和掺入具有预硫化的颗粒 橡胶而基本上不降解它们的任何有益效果。 因此，本发明意在是排他性的使用100％的纯tetrathiodipropionic酸的和独特的，它含有至少80％的酸trithiodipropionic纯度较高酸trithiodipropionic的。