Patent · US Active

Aqueous formulations containing polyaromatic compounds with acid groups

US7776957B2 · kind B2 · utility

0Cited by

2References

8Claims

0Family size

Assignee

BASF SE

Inventors

Alexander Khvorost · Hemsbach, DE
Gerhard Eugen Wahsner · Ludwigshafen, DE
Sven Thate · Bad Dürkheim, DE
Harald Boehnke · Mannheim, DE
Dennis Loesch · Altrip, DE

Key dates

Filing date	Jun 29, 2006
Grant date	Aug 17, 2010
Priority date	—
Expiry date	Feb 5, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P70/50
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The present invention relates to a process for preparing aqueous formulations (A) comprising at least one polyaromatic compound bearing acid groups, in particular a sulfonated polyaromatic compound, and also aqueous formulations (A) which have been prepared by the process of the invention. Furthermore, the present invention relates to a process for preparing dried formulations (B) by removing the water from the aqueous formulations (A) and also the dried formulations (B) themselves. The present invention further provides a formulation (C) comprising the dried formulation (B) of the invention and water or the formulation A of the invention and a water-comprising formulation (D) comprising the aqueous formulation (A) or the formulation (C) of the invention and additionally at least 2% by weight of an organic solvent. Furthermore, the present invention relates to dry formulations (E) which are obtained by removing water and solvent from the water-comprising formulations (D) of the invention. The present invention further provides for the use of the water-comprising formulations (D) of the invention and of the dry formulations (E) obtained from these for producing a polymer electrolyte…

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