An object of the present disclosure is to provide a polymer composition having excellent cold flow resistance, a production method therefor, a rubber composition including the polymer composition, and a tire using the rubber composition. The solution is a polymer composition comprising a diene-based polymer having a number-average molecular weight of 500,000 g/mol or more and a resin having a %H Ar value of 20 % or more and a softening point of 110 °C or higher, in which a content of the resin is 20 parts by mass or more with respect to 100 parts by mass of the diene-based polymer.
POLYMER COMPOSITION, PRODUCTION METHOD THEREFOR, RUBBER COMPOSITION, AND TIRE
POLYMERZUSAMMENSETZUNG, HERSTELLUNGSVERFAHREN DAFÜR, KAUTSCHUKZUSAMMENSETZUNG UND REIFEN
COMPOSITION DE POLYMÈRE AINSI QUE PROCÉDÉ DE FABRICATION DE CELLE-CI, ET COMPOSITION DE CAOUTCHOUC AINSI QUE PNEUMATIQUE
2025-05-14
Patent
Electronic Resource
English
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