Tire incorporating a rubber composition including a specific hydrocarbon resin

US12157821B2 · kind B2 · utility

Assignee

• COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN · FR

Inventors

• Fabien Bonnette · Ennezat, FR
• Laurent Copey · Clermont-Ferrand, FR
• Benoit De Gaudemaris · Clermont-Ferrand, FR
• Olivier J. Georjon · Uccle - Ukkel, BE
• Derek W. Thurman · Houston, US
• Ranjan Tripathy · Sugar Land, US
• Alain Hut · Clermont-Ferrand, FR

Key dates

• Filing date: Jul 10, 2020
• Grant date: Dec 3, 2024
• Expiry date: Jul 14, 2041

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60C1/0016
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

Described herein are tires comprising a rubber composition based on at least an elastomer and a hydrocarbon resin, wherein the hydrocarbon resin is based on a cyclic monomer selected from the group consisting of a distillation cut from a petroleum refinery stream, and/or C4, C5 or C6 cyclic olefins and mixtures thereof, and wherein the hydrocarbon resin has a number average molecular weight (Mn) of between 150 and 800 g/mol, and a content of aromatic protons (H Ar, expressed in mol %), a glass transition temperature (Tg, expressed in ° C.), and a number average molecular weight (Mn, expressed in g/mol) that are represented by (1) H Ar≤6 mol %, (2) Tg≥95−2.2*(H Ar), (3) Tg≥125−(0.08*Mn).