Modified conjugated diene rubber, method and composition thereof

US9260537B2 · kind B2 · utility

Assignee

• TSRC Corporation

Inventors

• Chi-Chen Hsieh
• Fu Lin
• Chi-Ta Tsai
• Hui-Kai Lin · Longbeilingcun, CN
• Bo Lin · Taichung, TW

Key dates

• Filing date: Oct 18, 2012
• Grant date: Feb 16, 2016
• Expiry date: Jun 5, 2034

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K3/36
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A method of forming modified conjugated diene rubber includes (a) reacting an alkali metal ion-containing conjugated diene rubber with a first modifier having a structural formula (I),wherein R1, R2, R3 are each independently selected from the group consisting of C1-C12 of alkyl and C2-C12 of alkenyl groups and C6-C12 of aromatic group, and R4 is selected from the group consisting of C1-C12 of alkyl, C2-C12 of alkenyl, C1-C12 of alkoxy groups and C6-C12 of aromatic group; and (b) adding a second modifier having a structural formula (II) after (a),HO—R5—Y  (II)wherein R5 is selected from the group consisting of C1-C12 of alkylene, C2-C12 of alkenylene, C3-C12 of alicyclic groups and C6-C12 of aromatic group, and Y is selected from the group consisting of oxygen-containing C1-C12 group and nitrogen-containing, C1-C12 group, wherein Y has the oxygen atom or the nitrogen atom directly connected to a carbon atom of R5.