Brightener mixtures based on bisstyryl compounds

US5695686A · kind A · utility

Assignee

• BASF SE

Inventors

• Manfred Hauptreif · Birkweiler, DE
• Norbert Leppert · Speyer, DE
• Karl-Heinz Etzbach · Bischofswerda, DE
• Helmut Reichelt · Neustadt, DE
• Peter Raatz · Ludwigshafen, DE
• Manfred Herrmann

Key dates

• Filing date: Mar 13, 1996
• Grant date: Dec 9, 1997
• Expiry date: Mar 13, 2016

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D06L4/65
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Brightener mixtures containing from 75% by weight to 100% by weight, based on the weight of the mixture, of the bisstyryl compounds of the formulae I and II ##STR1## in a weight ratio from 10:90 to 70:30, formulations containing the novel mixtures, and also their use for optically brightening synthetic, semisynthetic or natural polymer materials.