Production of an improved polyoxymethylene molding composition w

Details Production of an improved polyoxymethylene molding composition w Production of an improved polyoxymethylene molding composition w

1977-10-28

1978-12-19

De Benedictis, Sr., Thomas

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

528481, 528492, C08L 6900

Patent

active

041306040

ABSTRACT:
The mold deposit problem commonly associated with polyoxymethylene molding compositions which creates a non-uniform surface on a molded article effectively is minimized. The polyoxymethylene polymer initially is heated (as described) while in admixture with about 1 to about 4 percent by weight based upon the weight of the oxymethylene polymer of an aromatic polycarbonate (as defined). In a preferred embodiment a minor quantity of malonamide also is admixed with polyoxymethylene polymer and the aromatic polycarbonate during heating.

REFERENCES:
patent: 3012990 (1961-12-01), Kray et al.
patent: 3131165 (1964-04-01), Hermann et al.
patent: 3290261 (1966-12-01), Goldblum
patent: 3563847 (1971-02-01), Rye et al.
patent: 3646159 (1972-02-01), Miller

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