Manufacture of rigid foams and compositions therefor

Details Manufacture of rigid foams and compositions therefor Manufacture of rigid foams and compositions therefor

1993-03-08

1995-02-21

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521121, 521129, 521131, 521132, C08G 1814

Patent

active

053915844

ABSTRACT:
The use of a liquid for the preparation of a rigid polyurethane and/or polyisocyanurate foam by reacting a polyisocyanate and a polyol in the presence of a blowing agent characterised in that the liquid is an inert, insoluble, non-blowing liquid. CFC-free foams may be obtained showing good insulating properties.

REFERENCES:
patent: 5162384 (1992-11-01), Owens et al.
patent: 5210106 (1993-05-01), Dams et al.
patent: 5211873 (1993-05-01), Dams et al.
patent: 5286759 (1994-02-01), Smits et al.

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