Patent · US Active

Rubber composition including a specific hydrocarbon resin

US11802194B2 · kind B2 · utility

0Cited by

17References

20Claims

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	May 17, 2022
Grant date	Oct 31, 2023
Priority date	—
Expiry date	May 17, 2042

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 hydrocarbonbased 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.