Thermoplastic polyester molding compositions

Details Thermoplastic polyester molding compositions Thermoplastic polyester molding compositions

1979-03-19

1981-02-10

Derrington, James H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

264 26, 264322, 525444, C08K 322

Patent

active

042500788

ABSTRACT:
This invention concerns thermoplastic polyester molding compositions containing iron oxides, particularly Fe.sub.2 O.sub.3 which compositions exhibit markedly reduced heat up times and are especially useful in molding operations such as blow molding of beverage bottles. The polyester polymer may have incorporated therein by copolymerization certain anthraquinone dyes having functional groups which condense during polymerization into the polyester chain. The dye moieties are thermally stable at the polymer processing temperatures and are colorfast and nonextractable from the polymer.

REFERENCES:
patent: 2280771 (1942-04-01), Dufour et al.
patent: 3281515 (1966-10-01), Schmitz
patent: 3499848 (1970-03-01), Weisman

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