Processing stabilizer composition

Details Processing stabilizer composition Processing stabilizer composition

1997-10-03

2000-08-15

Morgan, Kriellion S.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524102, 524117, 524119, 524135, 524153, 25240024, 25240052, C08K 534, C08K 549, C08K 553, C09K 1532

Patent

active

061037966

ABSTRACT:
A homogeneous blended additive useful as a processing stabilizer for polymers which is a blend of Component (a), a defined phosphite or phosphonite; and Component (b) which is micronized zinc oxide. Component (b) is preferably in an amount of 5 to 10% based on the weight of component (a). This additive composition improves the resistance of phosphites and phosphonites against hydrolysis in the presence of moisture, by providing Component (b) as a hydrolysis stabilizer for Component (a).

REFERENCES:
patent: 4857230 (1989-08-01), Matsumara
patent: 5106898 (1992-04-01), Nosu et al.
patent: 5597857 (1997-01-01), Thibaut et al.

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