Oxidation products of cellulose, hemicellulose and lignin

US4056400A · kind A · utility

Assignees

• Michael Diamantoglou
• Helmut Magerlein
• Rainer Zielke

Inventors

• Michael Diamantoglou · Zell am Harmersbach, DE
• Helmut Magerlein · Obernburg, DE
• Rainer Zielke
• Emery G. P. Cornelissens · The Hague, NL

Key dates

• Filing date: Jul 28, 1975
• Grant date: Nov 1, 1977
• Expiry date: Jul 28, 1995

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/223
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A composition which consists essentially of a mixture of oligomeric and polymeric oxidation products of cellulose, hemicellulose and lignin containing carboxy, ether and hydroxy groups as obtained by the direct oxidation of a woody plant material, preferably in an aqueous suspension thereof, using alkali hypohalite in a one stage oxidation procedure or nitrogen dioxide, alkali periodate or lead tetraacetate followed by alkali chlorite or alkali hypochlorite in a two stage oxidation procedure. The resulting oxidation products as obtained by one of these specific processes are especially valuable as additives to a surface active detergent or cleaning agent.