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:
Jun. 16, 2026
Filed:
Feb. 08, 2023
Covestro Deutschland Ag, Leverkusen, DE;
Sivathmeehan Yogendra, Düsseldorf, DE;
Vera Taschner, Langenfeld, DE;
Sven Hobeika, Solingen, DE;
Ayse Deniz, Neuss, DE;
Andrij Pich, Herzogenrath, DE;
Sven Buschmann, Aachen, DE;
Laura Hetjens, Aachen, DE;
Covestro Deutschland AG, Leverkusen, DE;
Abstract
Provided is a polyphosphazene produced by a cyclic phosphazene of formula (1) wherein k is a natural number between 1 and 10, with a bis-hydroxy-terminated phosphonate of formula (2) HO—R—[O—P(O)(R)—O—R]—OH (2), wherein Rrepresents C- to C-alkyl, C-Calkylene, C-Ccycloalkyl or C-Caryl, Rrepresents C- to C-alkyl, phenyl or a bisphenyl, and n represents 1-10, in the presence of a base. Also provided is a process for producing the polyphosphazene, a moulding compound comprising the polyphosphazene and a thermoplastic polymer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile