Patent · US Expired

Bleaching auxiliary

US5670082A · kind A · utility

3Cited by

3References

4Claims

0Family size

Assignee

Ciba-Geigy · US

Inventors

Albert Stehlin · Rixheim, FR
Klaus Huber · Effeltrich, DE
Thomas Maier · Stockach, DE

Key dates

Filing date	Dec 9, 1994
Grant date	Sep 23, 1997
Priority date	—
Expiry date	Dec 9, 2014

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD06L4/12
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

There is disclosed an aqueous formulation comprising PA1 (a) a bleach stabilising component, PA1 (b) a salt of an organic carboxylic acid and PA1 (c) a preservative. The novel formulation is suitable for use as bleaching liquor for cellulosic fibre materials and is distinguished by a superior stabilising action, a very good capacity for binding heavy metal ions, a good inhibition of crystallisation, and the treated fibre materials have very good rewettability. A significant advantage of the novel formulation is its good biodegradability.

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