公开(公告)号：US06998448B2

公开(公告)日：2006-02-14

申请号：US10651695

申请日：2003-08-29

申请人： David John Zanzig ,  Georges Marcel Victor Thielen ,  Jennifer Ann Peters Knickle ,  Brian David Holden

发明人： David John Zanzig ,  Georges Marcel Victor Thielen ,  Jennifer Ann Peters Knickle ,  Brian David Holden

IPC分类号： C08L25/10 ,  C08F136/06 ,  B60C5/00

CPC分类号： B60C1/00 ,  B60C1/0016 ,  C08C19/44 ,  C08K5/548 ,  C08K9/06 ,  C08L9/00 ,  C08L9/06 ,  C08L15/00 ,  C08L2666/08

摘要： The invention relates to a tire having a tread of a rubber composition comprised of a composite of styrene/butadiene elastomer and functionalized styrene/butadiene elastomer containing an internal silanol and/or siloxy group therein with pendent silanol and/or alkoxy groups of a polymodal (e.g. bimodal) molecular weight distribution, together with at least 30 phr of cis 1,4-polybutadiene rubber and a dispersion in said rubber composition of precipitated silica aggregates and a coupling agent as a bis (3-triethoxysilylpropyl) polysulfide having an average of from only 2 to 2.5 sulfur atoms in its polysulfidic bridge to the exclusion of a bis (3-trialkoxysilylalkyl) polysulfide having an average of greater than 2.5, and particularly greater than 3, sulfur atoms in its polysulfidic bridge. In one aspect, said silica aggregates may be pre-treated to reduce said hydroxyl groups on their surface prior to blending with said silanol and/or siloxy functionalized elastomer. In one aspect, a carbon black contained in the rubber composition may be an electrically conductive carbon black.

摘要翻译： 本发明涉及具有橡胶组合物的胎面的轮胎，其由苯乙烯/丁二烯弹性体和含有内部硅烷醇和/或甲硅烷氧基的官能化苯乙烯/丁二烯弹性体的复合材料组成，其中具有多晶型的侧链硅烷醇和/或烷氧基（ （例如双峰）分子量分布，以及至少30phr的顺式1,4-聚丁二烯橡胶和所述橡胶组合物中沉淀二氧化硅聚集体的分散体和作为双（3-三乙氧基甲硅烷基丙基）多硫化物的偶联剂，其平均来自 在其多硫桥中只有2至2.5个硫原子，以排除其多硫桥中平均大于2.5，特别是大于3的硫原子的双（3-三烷氧基甲硅烷基烷基）多硫化物。 在一个方面，所述二氧化硅聚集体可以在与所述硅烷醇和/或甲硅烷氧基官能化的弹性体共混之前进行预处理以减少其表面上的所述羟基。 一方面，橡胶组合物中所含的炭黑可以是导电性炭黑。