Colored polyoxymethylene molding compounds and molded parts...

Details Colored polyoxymethylene molding compounds and molded parts... Colored polyoxymethylene molding compounds and molded parts...

2008-05-22

2011-11-08

Nerangis, Vickey (Department: 1762)

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S100000, C524S106000, C524S306000, C524S308000, C524S310000, C524S400000

Reexamination Certificate

active

08053499

ABSTRACT:
The present invention relates to a polyoxymethylene molding composition comprising(A) 0.1-5.0% by weight of colorant,(B) 0.01-0.5% by weight of a nitrogen-containing stabilizer,(C) 0.05-1% by weight of an ester of a polyhydric alcohol and at least one fatty acid, and(D) 0.001-0.5% by weight of a metal salt of a fatty acid, and(I) polyoxymethylene polymer and, where appropriate, up to 40% by weight of other conventional additives, and variants of this constitution in advantageous versions.In the case of these polyoxymethylene molding compositions the selection of the colorants is no longer restricted to conventional colorants suitable particularly for POM.The products produced therewith are particularly stable during processing and feature low formaldehyde emission, defect-free surfaces, and high color fastness.

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