Water-soluble condensation products of amino-containing compounds and crosslinkers, preparation thereof and use thereof

US5641855A · kind A · utility

Assignee

• BASF SE

Inventors

• Guenter Scherr · Ludwigshafen, DE
• Wolfgang Reuther · Neckargemünd, DE
• Dietmar Moench · Weinheim, DE
• Friedrich Linhart · Heidelberg, DE
• Juergen Weiser · Schriesheim, DE

Key dates

• Filing date: Jun 26, 1995
• Grant date: Jun 24, 1997
• Expiry date: Jun 26, 2015

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D21H17/56
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

There are described water-soluble condensation products of amino-containing compounds and crosslinkers, obtainable by reacting PA1 (a) polyalkylenepolyamines, polyamidoamines, ethylene-imine-grafted polyamidoamines, polyetheramines and mixtures thereof, with PA1 (b) monethylenically unsaturated carboxylic acids, salts, esters, amides or nitriles of monoethylenically unsaturated carboxylic acids, chlorocarboxylic acids and/or glycidyl compounds such as glycidic acid, glycidamide or glycidyl esters, and PA1 (c) at least bifunctional crosslinkers having a halo-hydrin, glycidyl, aziridine or isocyanate unit or a halogen atom as functional group, to form water-soluble condensation products having a viscosity of at least 100 mPas in a 20% strength by weight aqueous solution at 20.degree. C., processes for preparing the water-soluble condensation products by reacting the abovementioned compounds of groups (a), (b) and (c), and the use of the condensation products as drainage, flocculation and retention aids in papermaking.