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:
Mar. 07, 1978
Filed:
Mar. 03, 1976
Paul Moser, Riehen, CH;
Jean Rody, Basel, CH;
Ciba-Geigy Corporation, Ardsley, NY (US);
Abstract
Mixtures consisting of a compound of the formula I ##STR1## wherein either R.sub.1 represents a hydroxyl group and R.sub.2 represents hydrogen or R.sub.1 represents hydrogen and R.sub.2 represents a hydroxyl group, R.sub.3 and R.sub.4 independently of one another represent hydrogen or alkyl, and n represents a value from 0 to 2, and a compound of the formula II ##STR2## wherein R.sub.5 represents alkyl, cycloalkyl, aralkyl, aryl or aralkyl or aryl groups which are mono-, di or tri-substituted by hydroxyl, alkyl, chlorine and/or alkoxy groups, alkoxy, cycloalkoxy, aralkoxy, aryloxy or aralkoxy or aryloxy which are mono-substituted or di-substituted in the aryl radical by alkyl, chlorine and/or alkoxy, R.sub.6 represents hydrogen, alkyl, cycloalkyl, aralkyl, aryl or aralkyl or aryl groups which are mono-, di- or tri-substituted by hydroxyl, alkyl, chlorine and/or alkoxy groups, alkoxy, cycloalkoxy, aralkoxy, aryloxy or aralkoxy or aryloxy which are mono-substituted or di-substituted in the aryl radical by alkyl, chlorine and/or alkoxy, and m represents a value from 0 to 2.5, are valuable for stabilizing polymeric substrates.