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:
Sep. 08, 1998
Filed:
Nov. 25, 1996
Applicant:
Inventors:
Kurt Hoffmann, Lautertal, DE;
Heinz Herbst, Lautertal-Reichenbach, DE;
Rudolf Pfaendner, Rimbach/Odenwald, DE;
Hans-Jurgen Sander, Lorsch, DE;
Franciszek Sitek, Therwil, CH;
Assignee:
Ciba Specialty Chemicals Corporation, Tarrytown, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ; C08K / ; C08K / ;
U.S. Cl.
CPC ...
524101 ; 524119 ; 524126 ; 524153 ; 524291 ; 524342 ; 524343 ; 524400 ;
Abstract
Recycled plastics, predominandy thermoplastics, from domestic, commercial and industrial waste can be stabilized against thermooxidative degradation by adding a combination of a sterically hindered phenol with an organic phosphite or phosphonite and a metal salt of a fatty acid.