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US 12,122,187 B2Granted
Pneumatic tire comprising a rubber composition based on epoxidized polyisoprene and a thermoplastic polyurethane
AssigneeCompagnie Generale Des Etablissements Michelin
InventorsJose-Carlos Araujo Da Silva, Cyrille Guery
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Abstract
A tire having improved mechanical properties, comprises a rubber composition based on at least one epoxidized polyisoprene having a molar degree of epoxidation ranging from 5% to 85%, at least one thermoplastic polyurethane, and a crosslinking system.
Claims15
A tire comprising a rubber composition based on:
- at least one epoxidized polyisoprene having a molar degree of epoxidation ranging from 5% to 85%;
- at least one thermoplastic polyurethane;
- and
- a crosslinking system,
- wherein the at least one thermoplastic polyurethane comprises at least one flexible segment and at least one rigid segment, the flexible segment resulting from a reaction of a polyisocyanate with a polyol, the molecular weight of the hydrocarbon-based chain of which is between 600 and 2500 g/mol, and the rigid segment resulting from a reaction of a polyisocyanate with a diol or triol, the molecular weight of which is in a range extending from 40 to 350 g/mol.
2 more elements
A tire comprising a rubber composition based on:
- at least one epoxidized polyisoprene having a molar degree of epoxidation ranging from 5% to 85%;
- at least one thermoplastic polyurethane;
- and
- a crosslinking system,
- wherein the rubber composition does not comprise a reinforcing filler or comprises less than 5 phr of a reinforcing filler.
2 more elements
Dependencies are inferred from the claim text.