Unvulcanized rubber mixture for treads of vehicle pneumatic tire

Details Unvulcanized rubber mixture for treads of vehicle pneumatic tire Unvulcanized rubber mixture for treads of vehicle pneumatic tire

1997-12-19

1999-10-12

Teskin, Fred

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524492, 524571, 524575, 525236, 525237, 152209RR, 152450, C08K 334, C08L 906

Patent

active

059656611

ABSTRACT:
The invention pertains to a sulfur cross-linkable unvulcanized rubber mixture for the manufacture of treads, in particular for winter tires. The rubber mixture contains polyisoprene, polybutadiene and styrene-butadiene copolymer as well as further fillers and additives. In order to prepare vehicle pneumatic tires which exhibit excellent traction on ice and snow while at least maintaining their wet-gripping ability, the rubber mixture preferably contains, relative to 100 parts of total rubber, 20-100 parts by weight cis-1,4 polyisoprene; 0-65 parts by weight polybutadiene with a cis content of greater than about 90 mole %; and 0-65 parts by weight solution-polymerized styrene-butadiene copolymer; as well as 65-120 parts by weight silicic acid.

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Schnetger, Lexikon der Kautschuk Technik, pp. 2-25, 506-517, 546-559 (1991) .

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