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.

Date of Patent:
Sep. 12, 1995

Filed:

May. 25, 1994
Applicant:
Inventors:

Graziano Vignali, Bologna, IT;

Fabrizio Guizzardi, Bologna, IT;

Graziano Zagnoni, Bologna, IT;

Assignee:

Ciba-Geigy Corporation, Ardsley, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ;
U.S. Cl.
CPC ...
544198 ; 540543 ; 540598 ; 544113 ; 544194 ; 544207 ; 544209 ; 544212 ;
Abstract

Novel piperidine compounds of the formula (I) are suitable for use as light stabilizers, heat stabilizers and oxidation stabilizers for organic materials. The definitions of R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, A and n in the formula (I) are given in the text. ##STR1##


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