Functional diene polymer, preparation method thereof, and rubber composition comprising the same

US9296840B2 · kind B2 · utility

Assignees

• CHINA PETROLEUM & CHEMICAL CORPORATION · CN
• BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION · CN

Inventors

• Aimin Liang · Beijing, CN
• Lin Xu · Zhoushan City, CN
• Nini WANG · Nanchang, CN
• Xinhe Kang · Beijing, CN
• Liangliang QU · Beijing, CN
• Ke Jiang · 红钢城街道, CN
• Chuanqing Li · Nanhu, CN
• Ximing Xie · Beijing, CN
• Hui Liu · Shanghai, CN
• Wenjuan Sun · Beijing, CN

Key dates

• Filing date: Oct 24, 2014
• Grant date: Mar 29, 2016
• Expiry date: Oct 24, 2034

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/86
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention provides a functional diene polymer, a preparation method thereof and a rubber composition comprising the functional diene polymer. The functional diene polymer comprises at least one type of conjugated diene structural units and silane coupler functional units represented by formula (I) in its molecular chain, and the number-average molecular weight of the functional diene polymer is 50,000˜1,000,000; R1-R4 are C1-C20 linear or branched alkyl or heteroatom-containing C1-C20 linear or branched alkyl, and the heteroatom is selected from one or more of halogen, oxygen, sulfur, silicon, and phosphorus. Not only the relationship between the wet slip resistance and the rolling resistance of the functional diene polymer is effectively improved, but also the offensive odor produced in the rubber mixing process owing to the addition of the silane coupler is reduced.