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. 11, 1993
Filed:
May. 31, 1991
Applicant:
Inventors:
Bernd Quiring, Leverkusen, DE;
Thomas Munzmay, Dormagen, DE;
Wolfgang Henning, Kuerten, DE;
Eduard Mayer, Dormagen, DE;
Walter Meckel, Neuss, DE;
Wilhelm Goyert, Leverkusen, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08L / ; C08L / ; C09K / ; C08K / ;
U.S. Cl.
CPC ...
528 80 ; 528272 ; 528 81 ; 528 83 ; 2521822 ; 25218226 ;
Abstract
The invention relates to a process for stabilizing ester-containing plastics against degradation by heat and/or hydrolysis by the incorporation of sterically hindered isocyanate-terminated carbodiimides. The incorporable carbodiimides produce an excellent anti-aging effect and do not give rise to volatile products, even at very high temperatures.