POLYBUTADIENE, SYNTHESIS AND APPLICATION THEREOF Russian patent published in 2021 - IPC C08F136/06 C08F36/06 C09J109/00 

FIELD: chemistry.

SUBSTANCE: present invention relates to polybutadiene containing monomeric units derived from 1,3-butadiene containing vinyl double bonds in a relative amount of 50 to 65 mol. % with double bonds with the trans-configuration in a relative amount of 1 to 10 mol. % and double bonds with the cis-configuration in a relative amount of 25 to 40 mol. % wherein the total amount of monomer units (A), (B) and (C) constitutes 100 mol. % in total, and characterized by having a number average molar mass of 1000 to 3000 g/mol. Also described is a method for synthesis of polybutadienes, an application of polybutadiene for synthesis of adhesive compositions and an adhesive composition.

EFFECT: synthesis of polybutadienes allowing to achieve the required curing rates when applied in adhesives, liquid at a temperature of 20°C and standard pressure and preferably characterized by a viscosity at said temperature within the range of 2000 to 8000 mPa∙s allowing for easy processing and dosed addition, especially during manufacture of compositions based on synthetic rubber, rubber and of adhesive compositions.

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