Preparation of foams using polyfunctional organic acids

Details Preparation of foams using polyfunctional organic acids Preparation of foams using polyfunctional organic acids

C - Chemistry, Metallurgy

08

G

C08G 18/60 (2006.01) C08G 18/34 (2006.01) C08G 18/48 (2006.01) C08G 18/50 (2006.01) C08J 9/02 (2006.01)

Patent

CA 2059321

PREPARATION OF FOAMS USING POLYFUNCTIONAL ORGANIC ACIDS (Docket No. 80,994-F) ABSTRACT OF THE DISCLOSURE Foamed reaction products of organic polyisocyanates containing an average of at least 2 isocyanate groups per molecule with equivalent weights of carbon dioxide-generating, carboxyl group terminated addition reaction products of a polyoxyalkylene polyamine or polyoxyalkylene polyol reactant with a polycarboxylic acid reactant, the polyoxyalkylamine and polyoxyalkyl polyol reactant having an average molecular weight of about 200 to about 5,000 and being selected from the group consisting of polyoxypropylene diamines, polyoxypropylene/oxyethylene diamines, poly(oxytetramethylene) diamines and polyoxypropy- lene triamines, polyoxypropylene diols, polyoxypropylene/oxy- ethylene diols, poly(oxytetramethylene) diols and polyoxy- propylene triols, the polycarboxylic acid reactant containing 2 to about 45 carbon atoms and being selected from the group consisting of aromatic and aliphatic dicarboxylic acids and anhydrides thereof.

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