Fluorescent whitening agent compositions

US8608907B2 · kind B2 · utility

Assignee

• BLANKOPHOR GMBH & CO. KG · DE

Inventors

• Bernhard Hunke · Hennef (Sieg), DE
• Michael Kraemer · Nidderau, DE
• Andrei Tauber · Cologne, DE
• Gunter Klug · Langenfeld, DE

Key dates

• Filing date: Jun 10, 2009
• Grant date: Dec 17, 2013
• Expiry date: Dec 15, 2029

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2211/1059
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A composition suitable for paper brightening, wherein the composition contains one or more specified fluorescent whitening agents with taurine groups. The composition is used for whitening paper, in particular at the wet-end, in the size press or by coating.