Unvulcanized rubber mixture

US6221950A · kind A · utility

Assignee

• Continental AG · DE

Inventors

• Gert Heinrich · Hannover, DE
• Carla Recker · Hannover, DE

Key dates

• Filing date: Jun 23, 1998
• Grant date: Apr 24, 2001
• Expiry date: Jun 23, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K9/08
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Unvulcanized rubber mixture includes at least one rubber, aggregate, and at least one filler, wherein a surface of the at least one filler has been modified with a stimuli-sensitive substance. A filler for unvulcanized rubber mixtures includes a surface which has been modified with a stimuli-sensitive substance. A process for making an unvulcanized rubber mixture including at least one rubber, aggregate, and at least one filler, wherein a surface of the at least one filler has been modified with a stimuli-sensitive substance. The process includes coating a surface of at least one filler with a stimuli-sensitive substance to form at least one coated filler, and mixing the at least one coated filler with unvulcanized rubber and aggregate. A rubber product formed from an unvulcanized rubber mixture includes at least one rubber, aggregate, and at least one filler, wherein a surface of the at least one filler has been modified with a stimuli-sensitive substance. Vulcanized rubber including a rubber matrix comprising aggregate and at least one rubber, and at least one filler, wherein a surface of the at least one filler has been modified so as to form a stimuli-sensitive rubber mixture w…