Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1988-08-26
1990-01-02
Hoke, Veronica P.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
548259, 524 99, C07D24920, C08K 534
Patent
active
048913960
ABSTRACT:
A compound of formula I ##STR1## in which R.sub.1 is selected from C.sub.9-32 alkyl, C.sub.9-32 alkenyl, C.sub.9-32 alkoxy, --CO--R.sub.4 and --(CH.sub.2).sub.1-6 --COOC.sub.6-18 alkyl, where R.sub.4 is C.sub.8-31 alkyl, C.sub.8-31 alkenyl or C.sub.8-31 alkoxy; the alkyl group of each significance of R.sub.1 being uninterrupted or interrupted by one --O--, --S-- --SO.sub.2 -- group and being unsubstituted or substituted by --N(R.sub.5).sub.2, OH or halogen, where each R.sub.5, independently, is selected from hydrogen, C.sub.1-6 alkyl, C.sub.2-6 alkenyl and C.sub.1-6 alkoxy;
R.sub.2 has a significance of R.sub.1 independently, of R.sub.1 or is --COOH hydrogen, hydroxyC.sub.1-6 alkyl, hydroxyC.sub.1-6 alkoxy, --COOC.sub.1-6 alkyl, OCOC.sub.1-6 alkoxy; Cl, Br, I, OH, C.sub.1-8 alkyl, C.sub.1-8 alkoxy or C.sub.2-8 alkenyl; and
R.sub.3 is C.sub.1-6 alkyl, Cl, Br, I, OH, COOH, hydroxyC.sub.1-6 alkyl, C.sub.2-6 alkenyl, hydroxyC.sub.1-6 alkoxy, COOC.sub.1-6 alkyl, --OCOC.sub.1-6 alkoxy or C.sub.1-32 alkoxy provided that when R.sub.2 contains more than six carbon atoms, R.sub.3 contains six or less carbon atoms.
These compounds are useful as U.V. absorbers in polymeric systems.
REFERENCES:
patent: 3189615 (1965-06-01), Heller et al.
patent: 3766205 (1973-10-01), Heller et al.
patent: 3978074 (1976-08-01), Jancis
patent: 4220788 (1980-09-01), Bader et al.
patent: 4727158 (1988-02-01), Seltzer et al.
Avar Lajos
Bohnke Helmut
Doyle Thomas C.
Hoke Veronica P.
Sandoz Ltd.
Sharkin Gerald D.
Vila Richard E.
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