Crosslinking of polyaryletherketones

US11479629B2 · kind B2 · utility

Assignee

• FREUDENBERG SE · FR

Inventors

• Thomas Schauber · Hemsbach, DE
• Marco Sutter · Weinheim, DE
• Anke Zeller · Hähnlein, DE
• Kira Truxius · Darmstadt, DE
• Christoph Krafft · Balken, DE
• Ivan Schmalzel · Schifferstadt, DE
• Michael Schmitt · Worms, DE
• Mirco Niklas · Furth, DE
• Stefan Behle · Oerlenbach, DE
• Juergen Wenzel · Weinheim, DE
• Bernd Havemann · Schriesheim, DE

Key dates

• Filing date: Aug 5, 2019
• Grant date: Oct 25, 2022
• Expiry date: Aug 5, 2039

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L71/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Provided is a method for the production of a crosslinked molded body containing polyaryletherketone (PAEK), comprising the steps of (a) providing a mixture comprising a PAEK and a crosslinker, (b) preparing a molded body from the mixture, and (c) thermally treating the molded body at a temperature at which PAEK crosslinks, thereby obtaining the crosslinked molded body, and wherein the crosslinker is a di(aminophenyl) compound comprising two aminophenyl rings, wherein the two aminophenyl rings are joined together via an aliphatic group having a carbocyclic rest.