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Rubber compositions from modified trans-polybutadiene and rubber for tires.

Rubber compositions from modified trans-polybutadiene and rubber for tires

U.S. patent: 5,017,636 Issued: May 21, 1991 Inventors: I.H. Ama, N. Shimada, N.O. Suzuka, M. Sakakibara, H. Mouri, T. Fujimaki and T. Hamada Assigned: Japan Synthetic Rubber Co. and Bridgestone Corp. A rubber composition for a tire comprising a butadiene polymer having a trans-1,4 content of 70-90%, and modified at the terminal thereof with a compound selected from the group consisting of (a) isocyanate compounds and/or isothiocyanate compounds, (b) isocyanuric acid derivatives and/or thiocarbonyl containing compounds thereof, (c) urea compounds, (d) amide compounds and/or imide compounds, (e) N-alkyl substituted oxazolydinone compounds, etc., and at least one rubber selected from natural rubber, high cis-1,4 polyisoprene rubber and styrene-butadiene copolymer rubber high cis-1,4 polybutadiene and/or low cis-1,4 polybutadiene, and carbon black, process oil, aliphatic carboxylic acid and sulfur based.
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Title Annotation:Patent News
Author:Samples, Bob
Publication:Rubber World
Article Type:Brief Article
Date:Nov 1, 1991
Words:149
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