Warp-resistant reinforced thermoplastic compositions comprising

Details Warp-resistant reinforced thermoplastic compositions comprising Warp-resistant reinforced thermoplastic compositions comprising

1977-12-30

1979-02-20

Person, Sandra M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260860, C08K 336

Patent

active

041406699

ABSTRACT:
Reinforced thermoplastic compositions are provided comprising a poly(1,4-butylene terephthalate) resin, a poly(ethylene terephthalate) resin, and a reinforcing, warp resisting combination of talc and silica. The compositions optionally include a segmented copolyester resin, a silicon polymer and/or a fibrous glass reinforcement. The compositions are moldable to articles having improved resistance to warpage during heat treatment in comparison with molding compositions of talc, (poly(1,4-butylene terephthalate) and poly(ethylene terephthalate).

REFERENCES:
patent: 3742087 (1973-06-01), Nield
patent: 3824209 (1974-07-01), Anderson
patent: 3953394 (1976-04-01), Fox et al.

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