POLYURETHANE COMPOSITION Russian patent published in 2011 - IPC C08L75/06 C09D175/06 C08K5/17 

FIELD: chemistry.

SUBSTANCE: polyurethane composition contains a prepolymer - a product of reacting 1.0 mol of polyethylene butylene glycol adipate with molecular weight 2000 and 2.2-2.3 moles of a mixture of 2,4-toluene diisocyanate and 2,6-toluene diisocyanate in ratio 80:20, a hardener based on 3,3'-dichloro-4,4'-diaminodiphenyl methane and low-molecular polyesters with molecular weight 400-1000 in weight ratio 35:65, as well as an oxypropylated ethylenediamine catalyst and a dye.

EFFECT: improved processing and operational characteristics, longer working life of the composition, adhesion strength and endowing the composition with the required viscosity.

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