Stabilizer compositions for synthetic resins imparting improved

Details Stabilizer compositions for synthetic resins imparting improved Stabilizer compositions for synthetic resins imparting improved

1985-11-06

1987-07-21

Kight, John

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524100, 524102, 548259, 548260, 252401, C08K 534

Patent

active

046819053

ABSTRACT:
Stabilizer compositions for synthetic resins are provided, improving the resistance of the resin to deterioration when exposed to ultraviolet light, comprising a 2,2,6,6-tetramethylpiperidyl compound and an alkylidene-bis-(benzotriazolyl phenol) having the formula: ##STR1## wherein: R.sub.1 is hydrogen or alkyl having from one to about twelve carbon atoms;

REFERENCES:
patent: 3936305 (1976-02-01), Hiraishi et al.
patent: 4315848 (1982-02-01), Dexter et al.

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