Tri- and tetra-(substituted hydroxyphenylthio) alkane and cycloa

Details Tri- and tetra-(substituted hydroxyphenylthio) alkane and cycloa Tri- and tetra-(substituted hydroxyphenylthio) alkane and cycloa

1985-09-19

1986-09-16

Hoke, Veronica P.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

252 482, 585 3, C08K 536

Patent

active

046123415

ABSTRACT:
Organic materials are stabilized against thermal, oxidative and photo-degradation by incorporating therein an effective amount of a compound of formula I ##STR1## wherein T.sub.1 and T.sub.2 independently are alkyl, cycloalkyl, phenyl, aralkyl, T.sub.2 may also be hydrogen, T is alkyl, phenyl or substituted hydroxyphenyl, E is a direct bond, alkylene, cycloalkylene, phenylene or --CH.sub.2 CH(ST)CH.sub.2 --, T.sub.3 and T.sub.4 are independently hydrogen, alkyl or cycloalkyl; or together are alkylene, T.sub.5 is hydrogen, alkyl or phenyl, n is 1 or 2, t is 0 or 1, and t is 2-n. Polyolefins, ABS resins, natural and synthetic rubbers and polyesters are particularly well stabilized by the compounds of formula I.

REFERENCES:
patent: 2415833 (1947-02-01), Mikeska et al.
patent: 3330804 (1967-07-01), O'Shea
patent: 3346648 (1967-10-01), Worrel
patent: 3576883 (1971-04-01), Neuworth
patent: 3751483 (1973-08-01), Cisney
patent: 3786100 (1974-01-01), Neuworth
patent: 3897500 (1975-07-01), Neuworth
patent: 3956359 (1976-05-01), Neuworth
patent: 4243816 (1981-01-01), Schmidt
patent: 4308199 (1981-12-01), Cottman

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