POLYURETHANE COMPOSITION Russian patent published in 2016 - IPC C08L75/06 C08G18/32 C08G18/65 

FIELD: chemistry.

SUBSTANCE: composition contains, wt p: urethane forpolymer 100, curing agent 25.2-31.8, dye 0.1-0.7. Urethane forpolymer represents product of interaction of mixture of polyethers of polyethylenebutyleneglycoladipinate with molecular weight 2000 and polydiethyleneglycoladipinate with molecular weight 800, as well as mixture of 2,4-toluene diisocyanate and 2,6-toluene diisocyanate in ratio 80:20 in molar ratio 2.2-4.0 per 1 mol of mixture of polyethers. Curing agent is obtained by dissolution of aromatic amine - 3,3'-dichloro-4,4'-diaminodiphenylmethane, in mixture of polydiethyleneglycoladipinate with molecular weight 800 and oxypropylated ethylenediamine Lapromol L-294.

EFFECT: improvement of technological and exploitation characteristics, in particular increase of frost resistance, imparting required degree of viscosity to composition, reduction of time for solidification.

3 tbl, 8 ex