Functionalized polymers and improved tires therefrom

US7504457B2 · kind B2 · utility

Assignee

• BRIDGESTONE CORPORATION · JP

Inventors

• Terrence E. Hogan · Uniontown, US
• Christine Rademacher · Akron, US
• David F. Lawson · Uniontown, US
• H. James Harwood · Stow, US

Key dates

• Filing date: Jan 13, 2006
• Grant date: Mar 17, 2009
• Expiry date: May 14, 2027

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L19/006
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A method of forming a functionalized polymer, the method comprising reacting a living polymer with a compound defined by the formulawhere R5 includes a monovalent organic group, R6 independently includes a monovalent organic group, each R7 independently includes hydrogen or a monovalent organic group, each R8 independently includes hydrogen or monovalent organic group, R9 includes a monovalent organic group, M is silicon or tin, and x includes an integer from about 2 to about 10, where R5 and R6 may optionally each independently be alkoxy groups, and where R7, R8, and R9 are non-Zerewitinoff organic groups.