A method for producing branched modified rubber and a rubber composition comprising branched modified rubber prepared by the method, and use thereof
A technology of rubber composition and modified rubber, which is applied in the field of production of branched modified rubber, improved comprehensive hysteresis characteristics, and can solve problems such as limiting the selection of vulcanized rubber components
Active Publication Date: 2019-04-02
PUBLIC SIBUR HLDG
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Abstract
Present invention relates to a method for producing a branched modified rubber, comprising an anionic (co)polymerization of a conjugated diene and/or a vinyl aromatic compound in the presence of an initiator and a polyfunctional modifying agent, wherein the initiator represents a compound which is a reaction product of an organolithium compound and a secondary amine, and the modifying agent is anoligo- or polysiloxane containing in its structure both epoxy and alkoxy functional groups. The invention also relates to branched modified rubber based on a conjugated diene and/or a vinyl aromatic compound produced by said method, and to a rubber composition, comprising such branched-modified rubber. Rubber compositions according to the present invention are suitable in manufacture of a tire treads.
Technology Topic
Conjugated dieneOrganolithium compounds +3
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