CROSS-LINKABLE THERMOPLASTIC POLYURETHANES Russian patent published in 2011 - IPC C08G18/10 C08G18/67 C08G101/00 C08J9/10 C08G18/66 

FIELD: chemistry.

SUBSTANCE: invention relates to a cross-linkable elastomeric thermoplastic polyurethane which does not contain urea, isocyanurate, oxozolinyl, functional side groups capable of radical polymerisation, and having on both ends terminal functional groups capable of radical polymerisation, obtained through reaction of polyfunctional isocyanate, polyfunctional polyol and monool, containing unsaturation and capable of radical polymerisation, and a diol chain extender, where the amount of monool containing unsaturation ranges from 0.001 mol/100 g to 0.016 mol/100 g, preferably from 0.002 mol/100 g to 0.01 mol/100 g of the polymer composition. The invention also describes a method of producing such a thermoplastic polyurethae, a composition containing said polyurethane and a method of cross-linking such a composition, heat-cured polyurethane obtained from thermoplastic polyurethane according to the invention and a method of producing heat-cured polyurethane, as well as use of the disclosed cross-linkable elastomeric thermoplastic polyurethane or composition to make moulded articles, protective films, coatings for motorcars and extruded articles, tubes or cable sheathing.

EFFECT: thermoplastic polyurethane with improved stability at high temperature, wear resistance, creep resistance, dynamic characteristics and resistance to organic solvents.

22 cl, 4 ex, 8 tbl, 4 dwg