Polyquaternary ammonium compounds, their preparation, their use in the production of paper and paper treatment agents containing them

US4423194A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Wilfried Lobach · Bonn, DE
• Peter Haas · Brisbane, AU
• Gunter Kolb · Leverkusen, DE
• Guter Sackmann · Leverkusen, DE
• Joachim Probst · Leverkusen, DE

Key dates

• Filing date: Aug 23, 1982
• Grant date: Dec 27, 1983
• Expiry date: Aug 23, 2002

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F8/44
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to new water-soluble polyquaternary compounds which are obtained by imidation of (A) specific alternating copolymers of maleic anhydride and olefines with (B) specific amines and (C) subsequent alkylation of the reaction product AB, the components (A) and (B) having the meaning given in the text of the Application. The invention furthermore relates to a process for the preparation of these water-soluble polyammonium compounds and their use as agents for improving the wet and dry tear strength of paper. The invention also relates to new intermediate products for the preparation of the compounds according to the invention.