Dimeric benzotriazoles as UV absorbers

Details Dimeric benzotriazoles as UV absorbers Dimeric benzotriazoles as UV absorbers

1995-02-22

1996-01-30

Morris, Patricia L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

540460, 540492, 544318, 548259, C07D40314, C07D24920

Patent

active

054881129

ABSTRACT:
The invention relates to dimeric 2-(2'-hydroxyphenyl)benzotriazoles of the formula I ##STR1## in which p is 0 or 1; is C.sub.1 -C.sub.12 alkylene;

REFERENCES:
patent: 3399173 (1968-08-01), Heller et al.
patent: 3629192 (1971-12-01), Heller et al.
patent: 4077971 (1978-03-01), Fujita et al.
patent: 4681905 (1987-07-01), Kubota et al.
patent: 4812498 (1989-03-01), Nakahara et al.
patent: 4859726 (1989-08-01), Wang et al.
patent: 4948666 (1990-08-01), Paul et al.
patent: 5233047 (1993-08-01), MacLeay et al.
Chemical Abstract 77062g of Swiss 497,919 (1971).
Chemical Abstract 86567n of Swiss 410,851 (1967).

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