The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 28, 1997
Filed:
Mar. 03, 1995
Hans-Bernd Fuchs, Alzenau-Horstein, DE;
Gunter Dietrich, Frankfurt am Main, DE;
Ulrich Steinbrecht, Ober-Ramstadt, DE;
SP Reifenwerke GmbH, Hanau, DE;
Abstract
A rubber mixture vulcanizable with sulphur, a tire tread manufactured from it and also tires with a vulcanized tread are proposed. The rubber mixture contains in each case 100 parts by weight of elastomers, 20 to 80 parts by weight of a copolymer of conjugated diene and vinyl aromatic compound with very low long chain branching manufactured by solution polymerization in a hydrocarbon solvent, 10 to 50 parts by weight of polybutadiene with very low long chain branching, 10 to 30 parts by weight of polyisoprene with a 3,4 bond content of 50 to 70% by weight and 30 to 100 parts by weight of silica as filler material. Through the special combination of the three elastomers with silica as a filler material one obtains an easily processable mixture which leads to vulcanized tire treads with improved grip on wet and dry surfaces.