Water-soluble benzylated polyamidoamines

US4444959A · kind A · utility

Assignee

• BASF SE

Inventors

• Guenter Frey · Schifferstadt, DE
• Werner Streit · Worms, DE
• Rolf Fikentscher · Ludwigshafen, DE
• Hans-Juergen Degen · Lorsch, DE
• Wolf Guender · Neustadt, DE

Key dates

• Filing date: Feb 19, 1982
• Grant date: Apr 24, 1984
• Expiry date: Feb 19, 2002

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G73/028
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Water-soluble benzylated polyamidoamines which contain from 0.1 to 0.9 mole of benzyl groups per equivalent of nitrogen, and onto which from 20 to 400 parts by weight of ethyleneimine or propyleneimine have been grafted per 100 parts by weight of polyamidoamine, processes for the preparation of the materials, and the use of the materials as cationic assistants in processes for coloring paper with acid dyes and/or direct dyes in an aqueous medium. The papers obtained show a high color strength, with substantially no two sidedness of the coloration.