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:
Sep. 16, 2008
Filed:
Jul. 28, 2005
Emmanuel Custodero, Chamalieres, FR;
Laure Simonot, Clermont-Ferrand, FR;
Jean-claude Tardivat, Clermont-Ferrand, FR;
Emmanuel Custodero, Chamalieres, FR;
Laure Simonot, Clermont-Ferrand, FR;
Jean-Claude Tardivat, Clermont-Ferrand, FR;
Compagnie Generale des Establissements Michelin - Michelin & Cie, Clermont-Ferrand, FR;
Abstract
A reinforcing aluminum-based filler which can be used for reinforcing diene rubber compositions intended for the manufacture of tires, comprising an aluminum (oxide-)hydroxide corresponding, with the exception of any impurities and the water of hydration, to the general formula (a and b being real numbers):Al(OH)O, with 0<≦3 and=(3−)/2,   (I)the specific BET surface area of which is between 30 and 400 m/g, the average particle size (by mass) dof which is between 20 and 400 nm and the disagglomeration rate, α, of which, measured via an ultrasound disagglomeration test at 100% power of a 600-watt ultrasonic probe, is greater than 5×10μm/s is provided. A rubber composition suitable for the manufacture of tires comprising said aluminum-based filler as reinforcing filler.