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. 27, 1984
Filed:
Nov. 10, 1982
Roland A Winter, Armonk, NY (US);
Roger F Malherbe, Yonkers, NY (US);
Frank Tieh-Yin Fu, Taipei, TW;
Ciba-Geigy Corporation, Ardsley, NY (US);
Abstract
Oligomeric esteramides having recurring structural units of the formula ##STR1## where G is a hindered amine radical of formula I or II ##STR2## in which R.sup.1 is hydrogen or alkyl having 1 to 4 carbon atoms, R.sup.2 is hydrogen, alkyl having 1 to 12 carbon atoms, allyl, benzyl, acetyl, acryloyl or cyano, Z.sub.1 is a direct bond, --NHCH.sub.2 CH.sub.2 --, --NHCH.sub.2 CH.sub.2 CH.sub.2 -- or --OCH.sub.2 CH.sub.2 --, Z.sub.2 is ethylene or trimethylene, E is a divalent aliphatic, aromatic or alicyclic radical and L is unsubstituted or substituted alkylene, are useful light stabilizers for plastics.