Flame retarded polyethylene terephthalate blends

Details Flame retarded polyethylene terephthalate blends Flame retarded polyethylene terephthalate blends

1983-08-18

1984-08-21

Lee, Lester L.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524 94, C08K 534

Patent

active

044670621

ABSTRACT:
Flame retarded thermoplastic compositions which comprise in intimate admixture: (a) a polyethylene terephthalate, (b) a copolymer of a vinyl aromatic compound and an alpha,beta-unsaturated cyclic anhydride, said copolymer being a rubber-modified graft copolymer or a rubber-free copolymer, (c) a bis-imide flame retardant having at least 8 halogen atoms in the molecule bonded to carbon atoms of aromatic ring systems, (d) optionally, an inorganic synergist for said flame retardant. The compositions preferably contain an impact modifier as well.

REFERENCES:
patent: 3313763 (1967-04-01), Creighton et al.
patent: 3624024 (1971-11-01), Caldwell et al.
patent: 4140862 (1979-02-01), Dotson, Jr. et al.
patent: 4346195 (1982-08-01), Hornbaker et al.
patent: 4366276 (1982-12-01), Freitag et al.
patent: 4374220 (1983-02-01), Sonnenberg
patent: 4399244 (1983-08-01), Bier

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