Polyisocyanurate foam and reaction mixture for making same

Details Polyisocyanurate foam and reaction mixture for making same Polyisocyanurate foam and reaction mixture for making same

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

044449160

ABSTRACT:
Polyisocyanurate foam in which the polyol content is largely a polyol mixture prepared by the transesterification wtih 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 amide diol 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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