Polymer-modified anionic starch, method for its production, and its use

US6235835A · kind A · utility

Assignee

• BASF SE

Inventors

• Manfred Niessner · Schifferstadt, DE
• Claudia Nilz · Rödersheim-Gronau, DE
• Primoz Lorencak · Ludwigshafen, DE
• Martin Rubenacker · Altrip, DE
• Roland Ettl · Haßloch, DE

Key dates

• Filing date: Jul 14, 1999
• Grant date: May 22, 2001
• Expiry date: Jul 14, 2019

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D21H21/18
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Starch is modified with at least one cationic polymer P) and the modified starch is prepared by a process in which PA0 a) an anionically modified starch A) is reacted with a cationic polymer P) or PA0 b) a natural starch B) or a starch C) which has not been anionically modified is reacted with the cationic polymer P) in the presence of an anionic modifier M) and the polymer-modified starch is used.