Solid stabilizer composition for synthetic polymers

Details Solid stabilizer composition for synthetic polymers Solid stabilizer composition for synthetic polymers

1989-09-19

1991-01-15

Morgan, Kriellion

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524126, 524147, 524151, 524222, 25240024, 252403, C08K 5524, C08K 5526, C09K 1532

Patent

active

049854810

ABSTRACT:
A solid stabilizer composition for synthetic polymers is formed by a solid, continuous phase and by a solid dispersed phase in said continuous phase, wherein the continuous phase is constituted by amorphous 2,2'-oxamido-bis[ethyl-3-(3,5-di-tert.-butyl-4-hydroxyphenyl)-propionate] and the dispersed phase is constituted by an amorphous, or crystalline, or partially amorphous and partially crystalline organic phosphite, with the weight ratio of said continuous phase to said dispersed phase being comprised within the range of from 9:1 to 1:9.
The process for preparing said solid composition and its use in the stabilization of synthetic polymers are disclosed.

REFERENCES:
patent: 4766200 (1988-08-01), Riazi
patent: 4777192 (1988-10-01), Neuberg et al.

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