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. 21, 1991
Filed:
Jan. 31, 1990
Applicant:
Inventors:
Jurgen Finke, Marl, DE;
Roland Feinauer, Marl, DE;
Assignee:
Huels Aktiengesellschaft, Marl, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
524 87 ; 524 93 ; 524719 ; 524720 ;
Abstract
Aromatic polyamides having improved stability with respect to thermal oxidation are produced by adding to the reaction mixture present as a melt, a stabilizing amount, e.g., 0.05-4 mol % based on the sum total of components A and B, of a compound of Formula (I) ##STR1## wherein Q is --O--; --S--; or N--R'';