Rubber compositions including a polymeric component having a multi-modal molecular weight distribution

US9303154B2 · kind B2 · utility

Assignee

• BRIDGESTONE CORPORATION · JP

Inventors

• Zhong-Ren Chen · Stow, US
• Kevin M. McCauley · Akron, US
• Mark W. Smale · Hudson, US
• Michael W. Hayes · Canton, US
• Steven Luo · Copley, US

Key dates

• Filing date: Dec 28, 2009
• Grant date: Apr 5, 2016
• Expiry date: Sep 29, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2205/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A vulcanizable composition of matter comprising a rubber component, a filler, a curative for the rubber, where the rubber component includes a multi-modal polymer including at least two distinct peak molecular weights within a range defined by a lower limit of 80 kg/mole and an upper limit of 500 kg/mole.