Patent · US Active

Rubber composition including a specific hydrocarbon resin

US11365308B2 · kind B2 · utility

2Cited by

17References

29Claims

0Family size

Assignee

COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN · FR

Inventors

Benoit De Gaudemaris · Clermont-Ferrand, FR
Alain Hut · Clermont-Ferrand, FR

Key dates

Filing date	Oct 14, 2016
Grant date	Jun 21, 2022
Priority date	—
Expiry date	Jun 19, 2037

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L45/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A rubber composition is based on at least one elastomer, a reinforcing filler, a crosslinking system and an optionally hydrogenated hydrocarbon-based resin, predominantly composed of units selected from the group consisting of cyclopentadiene, dicyclopentadiene, methylcyclopentadiene and mixtures thereof, said hydrocarbon-based resin having an average molecular weight Mz of less than 2000 g/mol and a glass transition temperature Tg, expressed in ° C., such that: Tg≥80−2*(% HA), wherein % HA represents the content of aromatic protons of said resin, the content of said hydrocarbon-based resin being within a range extending from 15 to 150 phr.

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