公开(公告)号：US4118367A

公开(公告)日：1978-10-03

申请号：US763117

申请日：1977-01-27

Applicant: Keith Dawes ,  Roger James Rowley

Inventor： Keith Dawes ,  Roger James Rowley

IPC: C08L7/00 ,  C07F7/18 ,  C08K5/00 ,  C08K5/5455 ,  C08K5/5465 ,  C08L21/00 ,  C08K5/54

CPC classification number: C07F7/1836 ,  C08K5/54 ,  C08K5/5455 ,  Y10S524/925

Abstract: The invention relates to the production of silica reinforced rubber incorporating a novel azo-silane coupling agent which does not depend on the vulcanization reaction to effect coupling to the rubber. The novel coupling agents are of the general formula:Y -- X -- CO -- N .dbd. N -- CO -- X.sup.1 -- Zwhere X and X.sup.1 are the same or different and each is an imino group, an oxygen atom, or a substituted or unsubstituted methylene group; Y is a substituted or unsubstituted alkyl, aryl or aralkyl group or is the same as Z; and Z as an alkyl, aryl or aralkyl group which has an substituent at least one silane group of the formula: --Si(OR).sub.3 or --OSi(OR).sub.3 in which R is a straight or branched chain alkyl group. The azo-silane is typically used in amounts of from .1 to 10 pphr. Silica reinforced rubber vulcanizates produced using the azo-silane can have improved properties e.g. abrasion resistance, scorch resistance and resilience as compared with vulcanizates made using conventional coupling agents.

Abstract translation: 本发明涉及二氧化硅增强橡胶的生产，该二氧化硅增强橡胶结合有不依赖于硫化反应以实现与橡胶偶合的新型偶氮硅烷偶联剂。 新型偶联剂具有以下通式：