Stabilized molding compositions based on poly(oxymethylene)

Details Stabilized molding compositions based on poly(oxymethylene) Stabilized molding compositions based on poly(oxymethylene)

1975-05-30

1976-07-13

Hoke, V.P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 457R, 260 4585R, 260 4585B, 260 4585T, C08J 320

Patent

active

039692922

ABSTRACT:
Oxymethylene polymers are stabilized against the action of heat and oxygen by a stabilizer combination of an ester of a hydroxyl group containing araliphatic or aromatic carboxylic acid and an alkaline earth metal salt of an aliphatic, araliphatic or aromatic carboxylic acid. The efficiency of the stabilizer combination can be further improved by the addition of a costabilizer, especially a guanidine compound. The stabilized poly(oxymethylenes) are suitable for the manufacture of semifinished and finished articles.

REFERENCES:
patent: 3313767 (1967-04-01), Berardinelli et al.
patent: 3340219 (1967-09-01), Stemmler
patent: 3424819 (1969-01-01), Green
patent: 3553117 (1971-01-01), Gutweiler et al.

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