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:
Aug. 26, 2025
Filed:
Nov. 07, 2022
Envalior Deutschland Gmbh, Düsseldorf, DE;
Elisabeth Gau, Dormagen, DE;
Jan Caudal, Pulheim, DE;
Marc Rudolf, Cologne, DE;
Detlev Joachimi, Krefeld, DE;
Jochen Endtner, Cologne, DE;
Leif Arne Koerte, Minden, DE;
Matthias Bienmüller, Krefeld, DE;
ENVALIOR DEUTSCHLAND GMBH, Düsseldorf, DE;
Abstract
Compositions and products formed thereof are based on glass fiber-reinforced polyamide admixed with at least one secondary aromatic amine, at least one phosphinic acid derivative and bis(2,4-di-t-butylphenyl)pentaerythritol diphosphate in amounts to improve ageing behavior in the form of improved preservation of the elongation at break and impact toughness, improved color preservation or improved color stability, and simultaneously improved UV stability after thermal ageing by comparison with products based on glass fiber-reinforced polyamide with such a mixture.