US 7,576,153 B2
	Tire rubber composition comprising a coupling agent having a polythiosulfenamide function
Carlos José Araujo Da Silva, Pont-du-Chateau (France); Christiane Blanchard, Chateaugay (France); Gérard Mignani, Lyons (France); Salvatore Pagano, Gunma-ken (Japan); and Jean-Claude Tardivat, Clermont-Ferrand (France)
Assigned to Michelin Recherche et Technique S.A., Granges-Paccot (Switzerland)
Filed on Jun. 21, 2004, as Appl. No. 10/870,999.
Application 10/870999 is a continuation of application No. PCT/EP02/14522, filed on Dec. 19, 2002.
Claims priority of application No. 01 16853 (FR), filed on Dec. 20, 2001.
Prior Publication US 2005/0032949 A1, Feb. 10, 2005
Int. Cl. B60C 1/00 (2006.01); C08K 5/44 (2006.01); C08K 5/5415 (2006.01)

U.S. Cl. 524—262  [524/261; 524/492; 524/495; 524/571]

5 Claims

1. A tire comprising an elastomeric composition based on a diene elastomer, between 30 phr and 140 phr of silica as an inorganic filler and between 2 phr and 20 phr of a coupling agent comprising an organosilicon compound which is at least bifunctional and has a polythiosulfenamide function, and can be grafted on to the elastomer by means of a sulfur group, and which is selected from the group consisting of di(isopropyl)triethoxysilylpropyldithio-sulfenamide, di(isopropyl)ethoxydimethylsilylpropyldithio-sulfenamide, and mixtures of these compounds.