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:
Mar. 24, 2020
Fraunhofer-gesellschaft Zur Förderung Der Angewandten Forschung E. V., Munich, DE;
Rudolf Pfaendner, Darmstadt, DE;
Abstract
The invention relates to a method for stabilizing thermoplastic recyclates or previously damaged plastic materials against oxidative, thermal and/or actinic degradation. According to the claimed method, at least one substituted sugar, selected from the group consisting of at least one ester and/or ether of an alditol or cyclitol, at least one ester of a saccharic acid, at least one amide and/or substituted amine of an amine sugar, and mixtures and combinations thereof, as the stabilizing component is introduced in a thermoplastic recyclate and optionally additionally at least one primary antioxidant and/or at least one secondary antioxidant is introduced in a thermoplastic recyclate.