Process for the preparation of polyurethane-...

Details Process for the preparation of polyurethane-... Process for the preparation of polyurethane-...

C - Chemistry, Metallurgy

08

G

403/13

C08G 18/18 (2006.01) C08G 18/14 (1980.01)

Patent

CA 1185749

PROCESS FOR THE PREPARATION OF POLYURETHANE-POLYISOCYANURATE FOAMS Abstract of the Disclosure The invention describes a process for harmonizing the reaction rates for the formation of urethane and isocyanurate groups during the preparation of polyurethane- polyisocyanurate foams by reacting organic polyisocyanates with polyols in the presence of blowing agents and salts of amines having the formula Image as catalysts, wherein R stands for an hydrogen atom or a straight chained or branched alkyl radical with 1 to 19 carbon atoms, and n and m are equal or different whole numbers from 2 to 10.

418407

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