STABILISATION OF POLYMERS CONTAINING A HYDROLYSABLE FUNCTIONALITY Russian patent published in 2016 - IPC C08C19/25 C08L15/00 

Abstract RU 2597080 C2

FIELD: chemistry.

SUBSTANCE: present invention relates to a method of stabilization of polymers with Mooney viscosity growth. Method involves polymerisation of conjugated diene monomer, not necessarily with a monomer copolimerizable therewith, to alkyllithium initiation to obtain polymer "glue" with a "live" polymer in it; the reaction of the "live" polymer with a functionalising agent containing a hydrolysable functional group. Method includes introducing a stabilizing agent to the polymer, where the stabilizing agent is defined by the formula , where χ is a hydrolyzable group that forms an acidic species upon hydrolysis, where R2, R3 and R4 are each independently a halogen atom, a hydrocarbyl group, a hydrocarboxylate group, or a hydrocarbyloxy group. Functionalised polymer is extracted.

EFFECT: invention increases the resistance to Mooney viscosity growth.

9 cl, 4 tbl, 7 ex

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RU 2 597 080 C2

Authors

Rejdmecher Kristin

Khogan Terrens

Robertson Kristofer

Kurash Dzhessika

Dates

2016-09-10Published

2012-01-03Filed