POLYMER BASED ON CONJUGATED DIENE, METHOD FOR PRODUCTION THEREOF AND COMPOSITION CONTAINING SAID POLYMER Russian patent published in 2018 - IPC C08C19/22 C08L53/02 C08L101/00 

FIELD: biochemistry.

SUBSTANCE: invention relates to a conjugated diene based polymer and to a method for producing the polymer. Conjugated diene-based polymer is described comprising, at least, one conjugated diene monomer in which 40 % or more of its end is an end, containing an amino group and an amido group, and a yellow index b* determined by a differential colorimeter, is 15 or less, wherein the end containing the amino group and the amido group includes an end, having a structure represented by the following formula (I), and an end having a structure represented by the following formula (IV): , in which P is a conjugated diene-based polymer containing at least one conjugated diene monomer, and each of R₁ and R₂ independently represents a hydrocarbon group having 1 to 8 carbon atoms, and

, in which P is a conjugated diene-based polymer, comprising at least one polymer, one conjugated diene monomer, and each of R₁ and R₂ independently represents a hydrocarbon group, containing from 1 to 8 carbon atoms. Process for the preparation of a conjugated diene-based polymer and a polymeric composition for molded articles are also described.

EFFECT: technical result: a polymer based on a conjugated diene having high elasticity for rebound, resistant to weathering and used as a modifier of thermoplastic resin and a rubber-like polymer with a high resistance to thermal deformation.

4 cl, 1 dwg, 3 tbl