A METHOD FOR PRODUCING BRANCHED MODIFIED RUBBER AND A RUBBER COMPOSITION COMPRISING BRANCHED MODIFIED RUBBER PREPARED BY THE METHOD, AND USE THEREOF
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...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | 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 an oligo- 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. |
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