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, 1993
Filed:
Dec. 13, 1990
Applicant:
Inventors:
Michel Gay, Villeurbanne, FR;
Sylvie Lavault, Lyons, FR;
Assignee:
Rhone-Poulenc Chimie, Courbevoie, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
524 99 ; 524400 ; 524443 ;
Abstract
Polymer matrices, e.g., halogenated polymers such as PVC, polyolefins, polystyrenes, polyalkadienes, etc., are stabilized against the adverse effects of heat and light, by incorporating therein an effective stabilizing amount of a compound of the formula (I): ##STR1## in which n is a number ranging from 1 to 3, and R is a methyl radical or a hydrogen atom.