Polyacetal compositions containing a non-meltable polymer stabil

Details Polyacetal compositions containing a non-meltable polymer stabil Polyacetal compositions containing a non-meltable polymer stabil

1990-06-11

1991-11-05

Hoke, Veronica P.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524219, 524221, 524255, 524291, C08K 0000

Patent

active

050632639

ABSTRACT:
Incorporation into polyacetal molding compositions stabilized for processing with a non-meltable polymer stabilizer of 0.01-1.00 weight percent of at least one meltable co-stabilizer, said co-stabilizer being a thermal stabilizer for polyacetal, and 0.02-1.0 weight percent of at least one primary antioxidant results in significantly improved long term stability, as evidenced by greater retention of physical properties over time, of such compositions.

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