METHOD FOR MAKING RIM ELASTOMERS USING A CATALYST SYSTEM CONTAINING A POLYMERIC COMPONENT

摘要

ABSTRACTPolymers containing tertiary amine groups, andsubstantially free from active hydrogen atoms, are usefulcatalysts for the production of reaction injection moulded(RIM) polyurethanes. These catalysts do not interferewith the curing of paints on a moulded article or interferein the urethane network. They are advantageously employedas a solution or dispersion in one of the polyurethane-forming components.Advantageous catalysts are polymers made from monomersof the formulawherein Y = -0- or -NH-,R1 = H or CH3,R2-R7 independently = H, CH3, or alkyl,m = 0-1,n = 0-6, andR8 and R9 independently = CH3, or alkyl, ortogether with the nitrogen atom to which they are attachedform a N-containing heterocyclic group.