The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 11, 1997
Filed:
Oct. 04, 1995
Andreas Valet, Binzen, DE;
Jean-Luc Birbaum, Kobe, JP;
Vien Van Toan, Lentigny, CH;
Walter Knupp, Dudingen, CH;
Ciba-Geigy Corporation, Tarrytown, NY (US);
Abstract
Compounds of the formula I ##STR1## in which R.sub.1 and R.sub.5, independently of one another, are C.sub.1 -C.sub.12 alkyl; R.sub.2, R.sub.3 and R.sub.4, independently of one another, are H; C.sub.1 -C.sub.12 alkyl; C.sub.2 -C.sub.6 alkenyl; C.sub.1 -C.sub.12 alkoxy; C.sub.2 -C.sub.18 alkenyloxy; halogen; trifluormethyl; C.sub.7 -C.sub.11 phenylalkyl; phenyl; phenyl which is substituted by C.sub.1 -C.sub.18 alkyl, C.sub.1 -C.sub.18 alkoxy or halogen; phenoxy; or phenoxy which is substituted by C.sub.1 -C.sub.18 alkyl, C.sub.1 -C.sub.18 alkoxy or halogen; the two radicals R.sub.7 are identical or different and are hydrogen or C.sub.1 -C.sub.18 alkyl; or are C.sub.1 -C.sub.18 alkyl which is substituted by OH, C.sub.1 -C.sub.18 alkoxy, C.sub.3 -C.sub.6 alkenyloxy, halogen, --COOH, --COOR.sub.8, --CONH.sub.2, --CONHR.sub.9, --CON(R.sub.9)(R.sub.10), --NH.sub.2, --NHR.sub.9, --N(R.sub.9)(R.sub.10), --NHCOR.sub.11, --CN, --OCOR.sub.11, phenoxy and/or phenoxy which is substituted by C.sub.1 -C.sub.18 alkyl, C.sub.1 -C.sub.18 alkoxy or halogen; or the radicals R.sub.7 are C.sub.3 -C.sub.50 alkyl which is interrupted by --O-- and may be substituted by OH, phenoxy or C.sub.7 -C.sub.18 alkylphenoxy; or the radicals R.sub.7 are C.sub.3 -C.sub.6 alkenyl; glycidyl; C.sub.5 -C.sub.12 cycloalkyl; C.sub.5 -C.sub.12 cycloalkyl which is substituted by OH, C.sub.1 -C.sub.4 alkyl oder --OCOR.sub.11 ; C.sub.7 -C.sub.11 phenylalkyl which is unsubstituted or substituted by OH, Cl or CH.sub.3 ; C.sub.4 -C.sub.14 alkenyl which is substituted by OH or --OCOR.sub.11 ; --CO--R.sub.12 or --SO.sub.2 --R.sub.13 ; and R.sub.8 to R.sub.14 are as defined in claim 1, are highly suitable for stabilizing organic material, including photographic recording material.