Rigid polyisocyanurate foam

Details Rigid polyisocyanurate foam Rigid polyisocyanurate foam

1983-08-01

1984-04-24

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

252182, 521167, 521173, C08G 1814

Patent

active

044449151

ABSTRACT:
Polyisocyanurate foam in which the polyol content is largely a polyol mixture prepared by the transesterification with a glycol of a residue obtained from the manufacture of dimethyl terephthalate and in which the foam has been prepared using fluorocarbon blowing agent and alkoxylated alkyl amine to improve compatibility between the polyol and the blowing agent.

REFERENCES:
patent: 3647759 (1972-03-01), Walker
patent: 4237238 (1980-12-01), DeGuiseppi et al.
patent: 4339343 (1982-07-01), Koehler et al.
Hughes et al., J. Cellular Plastics, May/Jun. 1980, pp. 152-158.

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