METHOD OF PRODUCING RUBBER WITH LOW COLD FLOW Russian patent published in 2019 - IPC C08F8/42 C08F36/06 C08F136/06 C08F110/10 C08F10/10 C08F210/12 C08K3/34 C08L21/00 B60C1/00 

FIELD: manufacturing technology.

SUBSTANCE: invention relates to production of rubber of general and special purpose with controlled value of cold flow. Disclosed is a method of producing rubber with low cold flow, where the rubber is selected from a group comprising polybutadiene rubber, butyl rubber, polyisobutylene rubber. Method comprises adding a layered silicate suspension to a polymerisate formed during polymerisation when producing rubber, wherein the silicate is added to the polymerisate in the form of a suspension when the desired conversion of the monomers for the given polymerisation process is achieved. Invention also discloses modified rubber obtained by said method, rubber mixture containing one or more of said rubber, and article made from appropriate rubber mixture.

EFFECT: obtained modified rubber has low cold flow with preservation of micro- and macrostructural characteristics, which improve operational characteristics of rubber technical articles based on the disclosed rubbers.

18 cl, 1 dwg, 7 tbl, 37 ex