Patent · US Expired

Aqueous liquid formulations of pyrazoline brighteners

US7300474B2 · kind B2 · utility

3Cited by

10References

13Claims

0Family size

Assignee

Clariant Produkte (Deutschland) GmbH · DE

Inventors

Gerhard Zirkenbach · Rutesheim, DE
Alexander Lerch · Gelnhausen, DE

Key dates

Filing date	Feb 20, 2003
Grant date	Nov 27, 2007
Priority date	—
Expiry date	May 20, 2023

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD06L4/664
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The claimed liquid formulations contain an organic acid and a branched mono- or di-alcohol. The addition of the alcohol improves the storage stability of the liquid formulations.

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