Patent · US Expired

Agent for dissolving insoluble iron(III) compounds in highly alkaline textile treatment liquors

US4450083A · kind A · utility

0Cited by

7References

3Claims

0Family size

Assignee

BASF SE

Inventors

Werner Streit · Worms, DE
Klaus Lorenz · Worms, DE
Norbert Leppert · Speyer, DE

Key dates

Filing date	Mar 4, 1983
Grant date	May 22, 1984
Priority date	—
Expiry date	Mar 4, 2003

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD06M11/38
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

An agent, based on reducing agents and complexing agents, for dissolving insoluble iron(III) compounds in aqueous textile treatment baths which are at a pH of 10 or more, which agent has the following composition: PA1 (a) from 4 to 65% by weight of one or more water-soluble hydroxycarbonyl compound or of an N- or O-acetal thereof, as the reducing agent, PA1 (b) from 10 to 80% by weight of one or more complexing agent which complexes Fe.sup.++ ions at a pH of 10 or more and PA1 (c) water in an amount equal to 100% minus the amounts of (a) and (b).

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