Unsaturated polyester resin foams and methods of preparation

Details Unsaturated polyester resin foams and methods of preparation Unsaturated polyester resin foams and methods of preparation

1978-05-30

1980-08-05

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521110, 521122, 521137, 521138, C08J 902

Patent

active

042162947

ABSTRACT:
Unsaturated polyester resin foams or cellular structures of varying low densities are prepared quickly at ambient temperatures from an admixture which comprises a liquid unsaturated curable polyester resin, an organic isocyanate compound, a suitable surfactant, an accelerator and a particular combination of peroxide curing agents, which also serves to initiate the release of gases that permit expansion of the resin in a controlled manner to obtain a foamed structure.

REFERENCES:
patent: 2529512 (1950-11-01), Ott
patent: 2634244 (1953-04-01), Simon
patent: 2740743 (1956-04-01), Pace
patent: 3173897 (1965-03-01), Adams et al.
patent: 3591532 (1971-07-01), Abercrombie et al.
patent: 3823099 (1974-07-01), Doyle

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