Patent · US Active

Catalytic process for the phosphonylation of high-temperature polymers

US8022165B2 · kind B2 · utility

1Cited by

3References

21Claims

0Family size

Assignee

BASF SE

Inventors

Helmut Moehwald · Annweiler am Trifels, DE
Thorsten Bock · Feldkirch, AT
Rolf Muelhaupt · Glückstadt, DE

Key dates

Filing date	Feb 13, 2007
Grant date	Sep 20, 2011
Priority date	—
Expiry date	Mar 17, 2028

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P70/50
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Process for preparing polymeric aromatic phosphonates and also polymeric aromatic phosphonates which can be prepared by the process of the invention and blends comprising these polymeric aromatic phosphonates and at least one further polymer and also films, composites and membranes comprising these polymers or blends, the use of the membranes of the invention in fuel cells or in separation technology and also fuel cells comprising the membranes of the invention.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.