00681naa#a2200193#i#450# EN\\bibl\89180 20241016152838.3 2782-1900 20240924b2024####ek#y0engy0150####ca ENG RU The effect of the isocyanate trimerisation catalyst on the chemical composition and strength characteristics of polyurethane-polyisocyanate foams Journal article Yaroslavl Yaroslavl State Technical University 2024 12 с. Journal article local Полиуретан. 691.175.664 ENG Vlasov Ruslan Romanovich Zaycev Sergei Dmitrievich chemintech.ru