Provided is a modified conjugated diene-based polymer, a rubber composition and a tire with excellent low loss property and durability, and a method of producing a modified conjugated diene-based polymer with which the presently disclosed modified conjugated diene-based polymer can be produced. The modified conjugated diene-based polymer has two or more modifying groups in one modified conjugated diene-based polymer molecule, where the modifying groups between molecules have a non-covalent bond with energy of 10 kJ/mol to 250 kJ/mol. The rubber composition contains the modified conjugated diene-based polymer. The tire uses the rubber composition. The method of producing a modified conjugated diene-based polymer includes (i) anionically polymerizing at least a conjugated diene compound in presence of an alkali metal compound to form a conjugated diene-based polymer, (ii) further adding an alkali metal compound to the conjugated diene-based polymer, and (iii) reacting the product obtained in (ii) with a modifying agent to introduce a modifying group into the conjugated diene-based polymer.
MODIFIED CONJUGATED DIENE POLYMER, RUBBER COMPOSITION, TIRE, AND METHOD FOR MANUFACTURING MODIFIED CONJUGATED DIENE POLYMER
MODIFIZIERTES KONJUGIERTES DIENPOLYMER, KAUTSCHUKZUSAMMENSETZUNG, REIFEN UND VERFAHREN ZUR HERSTELLUNG VON MODIFIZIERTEM KONJUGIERTEM DIENPOLYMER
POLYMÈRE DIÈNE CONJUGUÉ MODIFIÉ, COMPOSITION DE CAOUTCHOUC, PNEUMATIQUE, ET PROCÉDÉ DE FABRICATION D'UN POLYMÈRE DIÈNE CONJUGUÉ MODIFIÉ
2023-04-19
Patent
Electronic Resource
English
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