Water-soluble etherified starches

US6001995A · kind A · utility

Assignee

• DyStar Textilfarben GmbH & Co. Deutschland KG · DE

Inventors

• Andreas Schrell · Hofheim, DE
• Bernd Huber · Schorndorf, DE

Key dates

• Filing date: Nov 21, 1997
• Grant date: Dec 14, 1999
• Expiry date: Nov 21, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L3/08
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

Aminated cellulose fiber obtained by adding one or more starches etherified with C.sub.2 -C.sub.5 -alkylamines which may additionally be substituted in the alkyl moiety by 1 to 2 further hydroxyl and methoxy groups and whose amino group is a primary or C.sub.1 -C.sub.4 -alkyl-substituted secondary, tertiary or quaternary amino or ammonium group and having a degree of substitution between 0.1 and 3 to a viscose dope, an alkali cellulose or a cellulose solution and spinning fiber therefrom.