LINING AND MEMBRANE BASED ON MDI FROM PREPOLYMERS, CHARACTERISED BY VERY LOW CONTENT OF FREE MONOMERIC ISOCYANATES Russian patent published in 2016 - IPC C08G18/10 C08G18/32 C08G18/40 C08G18/48 C08G18/76 C09D175/08 C09D175/04 

FIELD: chemistry.

SUBSTANCE: invention describes a two-component polyurethane and/or polyurethane polyurea hybrid based system for making a material, such as an elastomer and/or plastic, comprising an iso component having low content of free monomer and an amine/polyol component, wherein iso component comprises an MDI based pre-polymer with low content of free MDI monomer and capped with isocyanate groups of toluene diisocyanate, where pre-polymer contains less than about 0.3 % total free monomer and has an NCO% in range of about 0.1 to about 10 %. Also described is a coating composition containing two-component polyurethane system and use of said two-component system for producing material, such elastomer and/or plastic.

EFFECT: technical result consists in producing a product with improved mechanical properties and chemical resistance.

13 cl, 5 ex, 2 tbl