CAS: 60111-54-8; Tetrakis(Dimethyl(Vinyl)Silyl) Orthosilicate

上下游产品

Chlorodimethylvinylsilane tetramethylorthosilicate tetramethyldivinyldisiloxane

二甲基乙烯基氯硅烷置于吡啶,Lithium Orthosilicate,Sodium Carbonate体系中,化学反应 0.5H,以73%的收率获得产物四(二甲基乙烯基硅氧基)硅烷
参考文献:Kalmychkov,G. V.; Yarosch,N. K.; Mirskov,R. G.,Journal Of General Chemistry Of The Ussr,1992,Vol. 62,# 3.2,P. 590
标题:Kalmychkov,G. V.; Yarosch,N. K.; Mirskov,R. G.,Journal Of General Chemistry Of The Ussr,1992,Vol. 62,# 3.2,P. 590

专利信息

专利号:US-11767388-B1
优先权日:2019-09-18
标 题 :Silicon-functionalized rubber
发明人：ENSIGN SETH CODY; VIELHABER MARGARET FLOOK; JOHNGRASS JENA LYNN; MA LIQING
权利人:GOODYEAR TIRE & RUBBER
摘要:The compatibility between silica fillers and synthetic rubbers which are synthesized utilizing lanthanide-based catalyst systems, such as neodymium catalyst systems can be improved by terminating the polymerization with a vinyl silane terminating agent. In doing so the vinyl silane is allowed to react with the polymer chain ends of the neodymium rubber to functionalize the chain ends of the polymer chains with silicon containing groups. This results in the rubber having better characteristics for utilization in tire rubber formulations, such a tire tread formulations, that exhibit improved wear characteristics and lower rolling resistance. The process for the synthesis of such functionalized polydiene rubber comprises (1) polymerizing a diene monomer in the presence of a lanthanide-based catalyst system, and (2) terminating the polymerization with a vinyl silane terminator. The functionalized polydiene rubber composition made by this method is comprised of a polydiene rubber which is functionalized at its chain ends with a silicon containing group.