Process for the preparation of elastic, noncellular or...

Details Process for the preparation of elastic, noncellular or... Process for the preparation of elastic, noncellular or...

C - Chemistry, Metallurgy

08

G

402/150, 403/40

C08G 18/42 (2006.01) C08G 18/66 (2006.01) C08J 9/12 (2006.01)

Patent

CA 1328704

PROCESS FOR THE PREPARATION OF ELASTIC, NONCELLULAR OR CELLULAR POLYURETHANE- OR POLYURETHANE-POLYUREA MOLDED ARTICLES Abstract of the Disclosure The invention relates to a process for the preparation of elastic, noncellular or cellular polyurethane molded articles or polyurethane-polyurea molded articles through reactions of a) an organic polyisocyanate, b) a polyester polyol having a hydroxyl number of from about 25 to 100 and an acid number of less than 2, prepared through the polycondensation of organic dicarboxylic acids with at least one polyoxytetra- methylene glycol having a molecular weight of from about 162 to 600, or a mixture comprised of the said polyoxy- tetramethylene glycols with aliphatic diols and/or polyoxyalkylene glycols having a molecular weight of from about 106 to 1000, c) a chain extending agent in the presence of d) a catalyst and, optionally, e) a blowing agent, f) an auxiliary agent and/or additive. -46-

534204

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