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AssigneeAir Products and Chemicals, Inc.
InventorsMark Leo Listemann, Kristen Elaine Minnich, Brian Eugene Farrell, Lisa Ann Mercando, Michael John Kimock, James Dudley Nichols
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A method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of a blowing agent, a cell stabilizer and a catalyst composition comprising at least one compound of either of the following formulas IA and IB: ##STR1## where R is hydrogen, methyl or hydroxymethyl. The preferred catalysts comprise 3-hydroxymethyl quinuclidine, 3-methyl-3-hydroxymethyl quinuclidine and 4-hydroxymethyl quinuclidine.
In a method for catalyzing the trimerization of an isocyanate and/or its reaction with an active hydrogen-containing compound, the improvement which comprises using as a catalyst at least one compound of formulas IA and IB:
In a method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of a blowing agent, a cell stabilizer and a catalyst composition, the improvement which comprises employing a catalyst composition comprising at least one compound of the following formulas IA and IB:
In a polyurethane foam composition which comprises an organic polyisocyanate, a polyol, a blowing agent, a cell stabilizer and a catalyst composition, the improvement which comprises a catalytically effective amount of a catalyst composition comprising 3-hydroxymethyl quinuclidine, 3-methyl-3-hydroxymethyl quinuclidine or 4-hydroxymethyl quinuclidine.
Dependencies are inferred from the claim text.