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

FIELD: chemistry.

SUBSTANCE: coating composition contains an isocynate prepolymer obtained by reacting 4,4'-diphenylmethane diisocayanate and oligobutadiene diol with molecular weight 2800-3200, content of hydroxyl groups of 0.88-1.3% with ratio of isocynate to hydroxyl groups equal to 4:1, with content of isocyanate groups in the prepolymer equal to 8.0-9.7%, a base - rubber composition of low-molecular hydroxyl-containing rubber, a plasticiser, filler, an anti-ageing agent and a pigment, a urethane-formation catalyst and 3,3'-dichloro-4,4'-diaminodiphenyl methane.

EFFECT: high strength, hardness and relative elongation of coatings.

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