C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
400/1116, 6/123,
C08K 9/04 (2006.01) C08K 3/04 (2006.01) C08K 5/35 (2006.01) C08K 13/02 (2006.01) C08L 21/00 (2006.01)
Patent
CA 1266739
-33- 8301001 Title: CARBON BLACK PRODUCT AND RUBBER COMPOSITIONS CONTAINING SAME ABSTRACT Carbon black products useful in rubber compositions. and rubber compositions (uncured or cured) containing said carbon black products are described. The carbon black products of the invention comprise carbon black having a surface area of at least 20 m2/g. and up to about 10% by weight, based on the weight of the carbon black of at least one aromatic furazan oxide. Useful furazan oxides have both carbons of the furazan ring as part of a fused aromatic ring, and particular examples include benzofurazan oxide, and its methyl and methoxy analogs. Improvements in the processability of uncured rubber compositions containing the carbon black products of the invention have been observed. Filled rubber vulcanizates containing the carbon black products of the invention exhibit many improved properties such as increased filler-rubber interaction and decreased hysteresis. Tires made from the vulcanizates prepared with the carbon black products of the invention show lower running temperatures and improved rolling resistance.
482364
Firestone Tire & Rubber Company (the)
Swabey Ogilvy Renault
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