Polyurethane foam catalysts that eliminate...

C - Chemistry – Metallurgy – 08 – G

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400/103, 403/31

C08G 18/20 (2006.01) C08G 18/18 (2006.01) C08G 18/40 (2006.01)

Patent

CA 1312974

122-P-US03553 ABSTRACT In the preparation of a high resiliency polyurethane foam by react- ing a polyisocyanate with a polyurea dispersion-containing polyol based masterbatch composition also containing a tertiary amine catalyst for the polyurethane reaction, the improvement for eliminating cure draft of such stored polyol compositions which comprises employing a catalyst composi- tion consisting essentially of 5 to 15 wt% triethylenediamine, 20 to 35 wt% 4-(2-dimethylaminoethyl) morpholine, 20 to 35 wt% N,N,N',N'-tetramethyl-1,2-diamino-2- methylpropane, 10 to 25 wt% bis(dimethylaminoethyl)ether, and to 40 wt% of an N-hydroxyalkyl quaternary am- monium acid salt.

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