COATING COMPOSITION Russian patent published in 2011 - IPC C09D175/14 C09D109/00 

FIELD: chemistry.

SUBSTANCE: invention relates to liquid rubber based compositions for coating playgrounds, floors, roofs and applying insulation coatings in construction. The coating composition contains an isocyanate prepolymer obtained from reacting 4,4'-diphenylmethanediisocyanate and oligodienediol with molecular weight 2800-3200, content of hydroxyl groups of 0.88-1.3% with ratio of isocyanate to hydroxyl groups equal to 4:1, with content of isocyanate groups in the prepolymer of 8.0-9.7%, a base - rubber composition from low-molecular weight hydroxyl-containing rubber, plasticiser, filler, anti-ageing agent and a pigment, a urethane formation catalyst and a mixture of 2,4- and 2,6-isomers of 3,5-dimethylthiotoluylene diamine in ratio of 80:20.

EFFECT: composition increases strength, hardness and relative elongation of the coating.

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