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US 5,670,082 AGranted
Bleaching auxiliary
AssigneeCiba-Geigy Corporation
InventorsAlbert Stehlin, Klaus Huber, Thomas Maier
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Abstract
There is disclosed an aqueous formulation comprising (a) a bleach stabilising component, (b) a salt of an organic carboxylic acid and (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.
Claims4
An aqueous formulation comprising
- (a.sub.1) a polypeptide of aspartic acid of the formula ##STR22## wherein n.sub.1 =3-15,
- .ltoreq. n.sub.2 .ltoreq.2,
- 0.ltoreq.n.sub.3 .ltoreq.2 and the sum of n.sub.2 and n.sub.3 is 2,
- (b) a magnesium salt of an organic carboxylic acid, and
- (c) a preservative.
2 more elements
Dependencies are inferred from the claim text.