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1. (WO2018084733) METHOD OF PRODUCING A MODIFIED DIENE-CONTAINING RUBBER, THE RUBBER AND A COMPOSITION BASED THEREON

Pub. No.:    WO/2018/084733    International Application No.:    PCT/RU2016/000743
Publication Date: Sat May 12 01:59:59 CEST 2018 International Filing Date: Thu Nov 03 00:59:59 CET 2016
IPC: C08F 36/04
C08F 4/48
C08F 8/42
C08L 15/00
C08K 3/36
C08K 5/544
B60C 1/00
Applicants: PUBLIC JOINT STOCK COMPANY "SIBUR HOLDING"
Inventors: AVERKOV, Alexei Mikhailovich
TURENKO, Svetlana Viktorovna
Title: METHOD OF PRODUCING A MODIFIED DIENE-CONTAINING RUBBER, THE RUBBER AND A COMPOSITION BASED THEREON
Abstract:
The present invention relates to a method of producing a rubber, comprising (co)polymerizing at least one diene monomer and optionally at least one vinylaromatic monomer, and a vinyl-silicone compound, in the presence of a functionalizing lithium initiator, and modifying the obtained (co)polymer by a poly functional silicon-containing agent. The functionalizing lithium initiator is obtained by reacting an organolithium compound, a secondary amine and a diene-containing compound. In addition, the instant inventon relates to rubbers obtained by said method, rubber compositions and vulcanizates based thereon, semi-finished products and tires, comprising such a rubber. The present invention provides obtaining of rubber compositions and vulcanizates based thereon characterized by the improved complex of histeresis properties.