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:
Feb. 10, 2015
Filed:
Apr. 29, 2009
Jeremey J. Mehlem, Mauldin, SC (US);
Jesse J. Arnold, Simpsonville, SC (US);
Jeremey J. Mehlem, Mauldin, SC (US);
Jesse J. Arnold, Simpsonville, SC (US);
Compagnie Generale des Etablissements Michelin, Clermont-Ferrand, FR;
Michelin Recherche et Technique S.A., Granges-Paccot, CH;
Abstract
A heavy vehicle tire tread constituted from a material based upon a rubber composition, the composition comprising, per 100 parts by weight of elastomer, between 35 and 60 phr of a solution polymerized styrene-butadiene rubber having a styrene content of between 10 wt. % and 35 wt. % and between 35 and 60 phr of a polybutadiene. The composition may further include between 45 and 110 phr of silica and between (1.94×10/n)(S) and (2.55×10/n)(S) moles of a sulfur-containing organosilicon compound as a silane coupling agent per 1 kg of the silica, wherein n is a number of silicon atoms in a molecule of the silane coupling agent and S is a CTAB surface area in m/g of the silica. The rubber composition may be cured with a sulfur curing system comprising a sulfenamide accelerator and between 0.3 and 0.8 phr of free sulfur, wherein a ratio of the sulfenamide accelerator and the sulfur is between 2 and 7.