Polyvinylchloride composition and stabilizers therefor

Details Polyvinylchloride composition and stabilizers therefor Polyvinylchloride composition and stabilizers therefor

1990-05-22

1992-04-07

Hoke, Veronica P.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524151, 524387, 524388, 524396, 524397, 25240061, 252407, C08K 5521, C08K 509

Patent

active

051029332

ABSTRACT:
A composition useful for the thermal stabilization of polyvinylchloride resin comprising an alkyl and aryl-substituted beta-diketone, mannitol and a mixture of magnesium and zinc salts of benzoic and fatty aliphatic acids is disclosed. Also disclosed is polyvinylchloride resin effectively stabilized with the stabilizer composition and a method for effectively stabilizing polyvinylchloride from discoloration at elevated temperatures.

REFERENCES:
patent: 3396132 (1968-08-01), Perry et al.
patent: 4102839 (1978-07-01), Crochemore et al.
patent: 4123399 (1978-10-01), Gay
patent: 4221687 (1980-09-01), Minagawa et al.
patent: 4244848 (1981-01-01), Minagawa et al.

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