Invention Grant
US08927645B2 High styrene high vinyl styrene-butadiene rubber with narrow molecular weight distribution and methods for preparation thereof
有权
具有窄分子量分布的高苯乙烯高乙烯基苯乙烯 - 丁二烯橡胶及其制备方法
- Patent Title: High styrene high vinyl styrene-butadiene rubber with narrow molecular weight distribution and methods for preparation thereof
- Patent Title (中): 具有窄分子量分布的高苯乙烯高乙烯基苯乙烯 - 丁二烯橡胶及其制备方法
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Application No.: US14125340Application Date: 2012-06-22
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Publication No.: US08927645B2Publication Date: 2015-01-06
- Inventor: Evemarie Hamann , Silvia Valenti , Gabriele Holtz
- Applicant: Evemarie Hamann , Silvia Valenti , Gabriele Holtz
- Applicant Address: CH Horgen
- Assignee: Styron Europe GmbH
- Current Assignee: Styron Europe GmbH
- Current Assignee Address: CH Horgen
- Agency: Brinks Gilson & Lione
- Priority: EP11170966 20110622
- International Application: PCT/EP2012/062097 WO 20120622
- International Announcement: WO2012/175680 WO 20121227
- Main IPC: C08L9/06
- IPC: C08L9/06 ; C08F236/10 ; C08F4/46 ; C08F212/08 ; C08F2/06
Abstract:
A polymer having at least the following characteristics: (a) a block styrene content with more than 6 consecutive styrene units from about 15 to about 35 weight percent based on total styrene content in the polymer; (b) a vinyl content from about 25 to about 80 weight percent based on total amount of polymerized 1,3-diene; and (c) a styrene content from about 35 to about 75 weight percent based on total weight of polymer; and (d) a molecular weight distribution (Mw/Mn) of 1.5 or less.
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