Phenolic phosphite antioxidant and process for preparation there

Details Phenolic phosphite antioxidant and process for preparation there Phenolic phosphite antioxidant and process for preparation there

1982-02-18

1985-07-02

Hoke, Veronica P.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524128, 524152, 524342, 260930, 260953, 260973, 260976, C08K 552, C07F 9146, C07F 9145

Patent

active

045269181

ABSTRACT:
A phenolic phosphite antioxidant for use alone in polyolefins or in admixture with synergists, phenolic/phosphite antioxidants, and the like. The adduct formed by reacting a phosphorus trihalide, preferably PCl.sub.3, with 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene is useful for antioxidant activity in organic materials.

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patent: 4187212 (1980-02-01), Zinke et al.
patent: 4233207 (1980-11-01), Spivack
patent: 4246170 (1981-01-01), Evans
patent: 4257927 (1981-03-01), Leistner et al.
patent: 4282141 (1981-08-01), Minagawa et al.

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