Polyacetal resins containing non-meltable polymer stabilizers

Details Polyacetal resins containing non-meltable polymer stabilizers Polyacetal resins containing non-meltable polymer stabilizers

1989-03-17

1991-04-30

Bleutge, John C.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525401, C08F28306, C08K 547, C42L 6100

Patent

active

050118900

ABSTRACT:
Incorporation into polyacetal molding compositions of 0.05-3 weight percent of certain non-meltable polymers containing formaldehyde reactive hydroxyl groups, formaldehyde reactive nitrogen groups, or formaldehyde reactive hydroxyl and formaldehyde reactive nitrogen groups, wherein the polymer has an average particle size, both prior to melt processing with the polyacetal and after melt processing with the polyacetal, of less than 10 microns, results in improved thermal stability of such compositions.

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