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, 2013
Filed:
Jul. 30, 2009
Robert J. Palmer, Jonzier-Epagny, FR;
Toshikazu Kobayashi, Chadds Ford, PA (US);
Robert J. Palmer, Jonzier-Epagny, FR;
Toshikazu Kobayashi, Chadds Ford, PA (US);
E I du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
Disclosed is a molded or extruded thermoplastic article having high heat stability, including a thermoplastic polyamide composition including (a) a polvamide resin; (b) 0.25 to 20 weight percent of one or more polyhydroxy polymer(s) having a number average molecular weight of at least 2000; (c) 0.1 to 3 weight percent of one or more co-stabilizer(s) selected from the group consisting of secondary aryl amines, hindered amine light stabilizers, hindered phenols, and mixtures thereof; (d) 0 to less than 10 weight percent of one or more reinforcement agents; and (f) 0 to 20 weight percent of a polymeric toughener; wherein the composition has an air oven aging retention of elongation at break of at least 50 percent, as compared to that of an unexposed control of identical composition and shape.