Patent ID: 7658974
Filing Date: 2010-02-09
Classification: C08G,Y10T

Abstract:
1. A two-pack composition for making urethane-containing structures, said composition comprising (a) a first pack comprising at least one reaction product of at least one polyisocyanate selected from the group consisting of aliphatic polyisocyanates, 4,4′-diphenylmethane diisocyanate, 2,4′-diphenylmethane diisocyanate, and mixtures thereof, and at least one first compound with plural active hydrogens, wherein said first pack has %NCO of 1% or greater, and (b) a second pack comprising at least one second compound with plural active hydrogens; at least one amine catalyst that is a diazabicyclo compound; optionally one or more additional catalyst that is an organometallic compound; and optionally one or more ingredient that is not an isocyanate, not a compound with plural active hydrogens, and not a catalyst; wherein compounds with plural active hydrogens in said second pack are all chosen from polyester polyols, polyether polyols, monoether polvols, alkane diols, and mixtures thereof; wherein the reactive mixture formed by admixing said first pack and said second pack is capable of curing in the absence of water; and wherein said reactive mixture comprises less than 3% solvent by weight based on the weight of said reactive mixture.