Fire retardant polyester-polytetrafluoroethylene compositions

Details Fire retardant polyester-polytetrafluoroethylene compositions Fire retardant polyester-polytetrafluoroethylene compositions

1977-08-24

1980-03-04

Turer, Richard B.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 292E, 260 296F, 260 4218, 260 4227, 260 4249, 260 4875, 260 457RT, 260 457R, 260 4575B, C08L 6706, C08L 6700

Patent

active

041916786

ABSTRACT:
A method for the production of thermoplastic polyester compositions comprising mixing a normally flammable thermoplastic polyester, preferably containing at least 80% by weight of repeating units of ethylene terephthalate, tetramethylene, terephthalate or ethylene-1:2-diphenoxyethane-4,4'-dicarboxylate units, an effective amount of fire-retardant additives and an aqueous colloidal dispersion of PTFE, subjecting the mixture to conditions under which the polyester becomes molten and removing volatile materials from the melt.

REFERENCES:
patent: 3294871 (1966-12-01), Schmitt et al.
patent: 3723373 (1973-03-01), Lucas
Pvc Technology, Penn, 3ed (Wiley 1971), pp. 285-286.
Penn, GRP Technology (Maclaren, 1966), p. 174.
Lyons, The Chemistry and Uses of Fire Retardants (Wiley, 1970), pp. 370-398.

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