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:
May. 10, 1988
Filed:
Oct. 20, 1986
Hermann O Wirth, Bensheim, DE;
Klaus-Peter Michaelis, Lindenfels/Odenwald, DE;
Ciba-Geigy Corporation, Ardsley, NY (US);
Abstract
Compounds of formulae Ia and Ib ##STR1## wherein R.sup.1 is C.sub.6 -C.sub.22 alkyl, phenyl or phenyl which is substituted by one or two C.sub.1 -C.sub.9 alkyl groups, or is C.sub.5 -C.sub.7 cycloalkyl or a group of formula IIa or IIb ##STR2## or R.sup.1 is a group of formula IIIa or IIIb ##STR3## R.sup.2 and R.sup.3 are each independently of the other C.sub.1 -C.sub.20 alkyl, phenyl or phenyl which is substituted by one or two C.sub.1 -C.sub.9 alkyl groups, or are C.sub.5 -C.sub.7 cycloalkyl, and R.sup.4 is C.sub.2 -C.sub.12 alkylene, are suitable for stabilizing chlorinated polymers against light- and/or heat-induced degradation.