Patents Represented by Attorney John W. Wiedemann - Justia Patents Search

Patents Represented by Attorney John W. Wiedemann

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Oxidized carbonaceous materials and vulcanized and vulcanizable rubber compositions reinforced with such carbonaceous materials

Patent number: 4394478

Abstract: Oxidized carbonaceous materials suitable for reinforcing such diene rubbers as styrene-butadiene rubber and natural rubber include carbon, oxidized iron dispersed in, intimately associated with and at least partially bonded to the carbon, and hydrogen.

Type: Grant

Filed: June 29, 1981

Date of Patent: July 19, 1983

Assignee: TRW Inc.

Inventor: Jon W. Martin