Flame retardant rigid thermoplastic foams

Details Flame retardant rigid thermoplastic foams Flame retardant rigid thermoplastic foams

1979-02-08

1979-11-13

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

260 37PC, 521 90, 521 95, 521128, 521130, 521134, 521138, 521139, C08J 908, C08J 910

Patent

active

041744322

ABSTRACT:
Shaped flame retardant rigid thermoplastic foams are provided having high impact strength and superior smoke density and superior radiant panel test values. Blends of dichloroethylene bisphenol polycarbonate and a high performance thermoplastic polymer, such as isopropylidene bisphenol polycarbonate are injection foam molded under melt conditions to a variety of shaped structures.

REFERENCES:
patent: 3779954 (1973-12-01), Wirth et al.
patent: 3781233 (1973-12-01), Muller et al.
Porejko et al., "Synthesis & Properties of Polycarbonates with Chlorobisphenols", Polinary 13 (2) 55 (1968).
"Synthesis of Polycarbonates by Interfacial Method", Z. Nolkowski et al., Polinary, 15 (1), 12-14 (1970).
Z. Wielogosy et al., "Infrared Spechoscopic Investigation of Polycarbonates", Plaste und Kautschuk, 19 (12), 902-904 (1972).

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