Title:
【発明の名称】水溶性ポリアミノポリカルボン酸の製造法
Document Type and Number:
Japanese Patent JP2000508705
Kind Code:
A
Abstract:
A process is disclosed for preparing water-soluble, carboxyalkylated, amino group-containing polymers by reacting water-soluble, amino group-containing polymers with at least one aldehyde and one alkaline cyanide or with a cyanhydrin from an aldehyde and an alkaline cyanide in an aqueous solution at temperatures from 60 to 110 DEG C. Also disclosed is the use of the carboxyalkylated polymers which contain amino groups and of the N-oxides derived therefrom as auxiliary agents for the production of paper, as additives of washing and cleaning agents and as complexing agents during wood pulp bleaching, cellulose bleaching, cellulose production and de-inking of used printed paper.
Inventors:
Thomas grinder
Alfred Ottling
Gerold Brown
Liner Ram
Jurgen Schneider
Gunter Share
Rudolf Schumacher
Primus Lauren Cuck
Hubert Mike Snner
Alfred Ottling
Gerold Brown
Liner Ram
Jurgen Schneider
Gunter Share
Rudolf Schumacher
Primus Lauren Cuck
Hubert Mike Snner
Application Number:
JP53774597A
Publication Date:
July 11, 2000
Filing Date:
April 23, 1997
Export Citation:
Assignee:
BASF Akchen Gezel Shaft
International Classes:
C07C227/02; C08G73/02; D21C5/02; D21C9/10; D21H17/54; (IPC1-7): C08G73/02; D21C5/02
Attorney, Agent or Firm:
Toshio Yano (3 outside)