Patent · US Active

Rubber composition having a very low zinc content

US8232338B2 · kind B2 · utility

1Cited by

2References

26Claims

0Family size

Assignee

MICHELIN RECHERCHE ET TECHNIQUE S.A. · CH

Inventors

José Carlos Araujo Da Silva · Pont du Château, FR
Anne Veyland · Marsat, FR

Key dates

Filing date	Dec 21, 2007
Grant date	Jul 31, 2012
Priority date	—
Expiry date	Jan 31, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K5/098
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A rubber composition based on at least one diene elastomer, containing less than 2 phr of zinc, phr meaning parts per hundred parts of rubber (elastomer), and based on at least one reinforcing filler and one sulphur-based crosslinking system, comprising a zinc carboxylate of formula: (RCOO)2Zn, in which R represents a hydrocarbon group chosen from cyclic or non-cyclic, linear or branched alkyl groups having 1 to 16 carbon atoms, aryl groups, aralkyl groups or alkaryl groups having 1 to 16 carbon atoms. Also disclosed is a process for preparing such a rubber composition which is suitable for manufacturing tires or semi-finished products made of rubber intended for these tires.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.