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:
Sep. 23, 2025
Filed:
Oct. 17, 2019
Fraunhofer-gesellschaft Zur Förderung Der Angewandten Forschung E. V., Munich, DE;
Elke Metzsch-Zilligen, Darmstadt, DE;
Rudolf Pfaendner, Darmstadt, DE;
Abstract
The present invention relates to a method of stabilizing virgin thermoplastic material against oxidative, thermal and/or actinic degradation. In the method of the invention, at least one polyphenol and at least one alditol and/or cyclitol are introduced into a virgin thermoplastic material. The method of the invention can stabilize virgin thermoplastic material with high efficacy and in a very environmentally friendly and inexpensive manner against oxidative, thermal and/or actinic degradation. The present invention additionally also relates to correspondingly stabilized virgin thermoplastic material and to moulding compounds and mouldings produced therefrom. The present invention also further relates to stabilizer compositions and to the use thereof for stabilization of virgin thermoplastic material against oxidative, thermal and/or actinic degradation.