Processes for preparing aminosilane functionalized polymers

US11104748B2 · kind B2 · utility

Assignee

• BRIDGESTONE CORPORATION · JP

Inventors

• David F. Lawson · Uniontown, US
• Terrence E. Hogan · Uniontown, US
• Christine Rademacher · Akron, US
• David M. Roggeman · North Royalton, US
• Fuminori Ota · Tokyo, JP

Key dates

• Filing date: Jul 15, 2019
• Grant date: Aug 31, 2021
• Expiry date: Jul 15, 2039

Classification

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

Abstract

Metallated aminosilane compounds for use as functional initiators in anionic polymerizations and processes for producing an aminosilane-functionalized polymer using the metallated aminosilane compounds to initiate anionic polymerization of at least one type of anionically polymerizable monomer. Preferred use of the metallated aminosilane compounds results in rubber compositions for use in tires comprising an aminosilane functionalized polymer.