Manufacture of modified basic polyaminoamide with ammonium compound

US4036821A · kind A · utility

Assignee

• Wolff Walsrode AG · DE

Inventors

• Lutz Hoppe
• Rudolf Behn · Walsrode, DE

Key dates

• Filing date: Oct 24, 1974
• Grant date: Jul 19, 1977
• Expiry date: Oct 24, 1994

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G69/48
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A process for the production of water-soluble auxiliary agents based on polyaminoamides by reacting a polyfunctional compound with a tertiary, monofunctional amine to form an ammonium compound and reacting that ammonium compound with a basic polyaminoamide, the basic polyaminoamide being the polycondensation product of a dicarboxylic acid, a polyalkylenepolyamine and an aminocarboxylic acid or lactam thereof, the basic polyaminoamide being reacted with 0.15 to 0.19 mol of a polyfunctional compound per mol equivalent of secondary amino group in the polyamide, incorporating that modified basic polyaminoamide in the paper pulp so as to increase the retention of fibres, fillers or pigments, or to accelerate the drawings.