Leuco vat-dye preparations in granule form

US5888254A · kind A · utility

Assignee

• BASF SE

Inventors

• Manfred Gang · Frankenthal (Pfalz), DE
• Rudolf Kruger · Bad Dürkheim, DE
• Peter Miederer · Haßloch, DE
• Harald Schluter · Bad Dürkheim, DE
• Peter Schultz · Phoenix, US
• Manfred R. Wolf · Mannheim, DE

Key dates

• Filing date: Jul 31, 1997
• Grant date: Mar 30, 1999
• Expiry date: Jul 31, 2017

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S8/918
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Granular leuco vat-dye preparations containing, as essential components, leuco vat-dye, reducing agents and alkaline metal hydroxide, and the production of said preparations and their use in dyeing cellulose-containing textile materials.