Process for making low density flexible polyisocyanurate-polyure

Details Process for making low density flexible polyisocyanurate-polyure Process for making low density flexible polyisocyanurate-polyure

1990-01-24

1991-01-01

Kight, III, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521118, 521125, 521176, 521902, C08G 1818, C08G 1816, C08G 1865

Patent

active

049818805

ABSTRACT:
Low density flexible molded and slabstock foams are prepared by reacting a polyisocyanate with a polyol composition containing a mono-alcohol. The blowing of the foam is essentially with carbon dioxide generated from the reaction of water with isocyanate, and the reaction catalysts used in the preparation of the foam include a polyisocyanate trimerization catalyst.

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J. H. Arceneaux et al., J. Elastomers and Plastics, vol. 14, p. 63 (1982).

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