Process for the manufacture of flame retardant polystyrene foams

Details Process for the manufacture of flame retardant polystyrene foams Process for the manufacture of flame retardant polystyrene foams

1980-08-04

1981-11-03

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

260 23S, 260 4575T, 260DIG24, 521 93, 521 98, 521907, C08V 914

Patent

active

042987024

ABSTRACT:
This invention relates to a process of making flame-retardant polystyrene foams by an extrusion process in which a stabilizer of a dialkyl-tin carboxylate or a mixture of a dialkyl tin carboxylate and a barium and/or cadmium carboxylate is added to the extrusion melt.

REFERENCES:
patent: 2590211 (1952-03-01), Rugar
patent: 2924532 (1960-02-01), Dereich
patent: 4089912 (1978-05-01), Levek et al.
patent: 4113672 (1978-09-01), Pillar

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