Invention Grant
US06812277B2 Tire with component comprised of a blend of polybutadiene-rich rubber composition which contains a minor portion of styrene-rich styrene/isoprene elastomer
失效
轮胎与由富含聚丁二烯的橡胶组合物的混合物组成，其含有少部分富含苯乙烯的苯乙烯/异戊二烯弹性体
- Patent Title: Tire with component comprised of a blend of polybutadiene-rich rubber composition which contains a minor portion of styrene-rich styrene/isoprene elastomer
- Patent Title (中): 轮胎与由富含聚丁二烯的橡胶组合物的混合物组成，其含有少部分富含苯乙烯的苯乙烯/异戊二烯弹性体
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Application No.: US10000730Application Date: 2001-10-31
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Publication No.: US06812277B2Publication Date: 2004-11-02
- Inventor: David John Zanzig , Adel Farhan Halasa , Chad Aaron Jasiunas
- Applicant: David John Zanzig , Adel Farhan Halasa , Chad Aaron Jasiunas
- Main IPC: C08L906
- IPC: C08L906
Abstract:
Pneumatic rubber tire having at least one component or a rubber composition comprised of a major portion of relatively low Tg high cis 1,4-polybutadiene elastomer (BR) and a minor portion of a relatively high Tg, styrene-rich, styrene/isoprene elastomer (SIR) wherein the Tg of said BR is at least 60° C. lower than the Tg of said SIR. Said SIR has a styrene content of at least 30 weight percent. The styrene based units of said SIR are present substantially without large blocks of styrene units. Said BR is a high cis 1,4-polybutadiene having a cis 1,4-content of at least 96 percent and preferably has a branched macrostructure. In one aspect of the invention, said tire component is a tire tread, particularly a circumferential tire tread.
Public/Granted literature
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