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:
Apr. 06, 1976
Filed:
May. 08, 1975
Siegfried Rosenberger, Riehen, CH;
Kurt Schwarzenbach, Pfeffingen, CH;
Ciba-Geigy Corporation, Ardsley, NY (US);
Abstract
Compounds of the formula ##SPC1## In which R.sub.1 denotes hydrogen, alkyl with 1-8 carbon atoms, alkenyl with 3 or 4 carbon atoms, cycloalkyl with 5-8 carbon atoms, aralkyl with 7-9 carbon atoms, phenyl, chlorine, bromine, hydroxyl, alkoxy with 1-18 carbon atoms or acyloxy with 2-18 carbon atoms, R.sub.2 denotes hydrogen, alkyl with 1-5 carbon atoms, alkenyl with 3 or 4 carbon atoms, cyclohexyl, aralkyl with 7-9 carbon atoms, chlorine or bromine, n denotes 1 and A denotes alkyl with 1-21 carbon atoms, alkenyl with 3-6 carbon atoms, alkynyl with 3-6 carbon atoms, oxaalkyl with 2-21 carbon atoms, thiaalkyl with 2-21 carbon atoms, the hetero-atoms in the oxaalkyl or thiaalkyl radical being separated from one another and/or from the oxygen atom to which these radicals are bonded, by at least 2 carbon atoms, cyclohexyl or benzyl, or n denotes 2 and A denotes alkylene with 2-10 carbon atoms, alkenylene with 4 carbon atoms, alkynylene with 4 carbon atoms, oxaalkylene with 4-10 carbon atoms or thiaalkylene with 4-10 carbon atoms, the hetero-atoms in the oxaalkylene or thiaalkylene radical being separated from one another and/or from the oxygen atom to which these radicals are bonded, by at least 2 carbon atoms, can be used for stabilising organic material, especially in the presence of metals.