| abstract |
The invention relates to the field of synthesis of high molecular weight compounds based on polyisocyanates and can be used in the preparation of heat and heat resistant polymers. The invention allows to increase the viability of the initial composition comprising the isocyanate component (IR), functional epoxide and a trimerization catalyst, by using as a IR solution a polyisocyanurate based on 2,4-toluene diisocyanate (TDI) mixed with 4 , 4-diphenylmethanediisocyanate and 2.2-diphenylmethane diisocyanate with a total content of NICO-groups equal to 6.12 - 21.4% by weight of the composition. 2 tab. |