Use of polymers as biocides

US6261581A · kind A · utility

Assignee

• BASF SE

Inventors

• Norbert Gebhardt · Neustadt, DE
• Dieter Zeller · Speyer, DE
• Claudia Nilz · Rödersheim-Gronau, DE
• Ulrich Steuerle · Heidelberg, DE
• Charlotte Johansen · Paseo Los Muchachos, DK

Key dates

• Filing date: Sep 3, 1998
• Grant date: Jul 17, 2001
• Expiry date: Sep 3, 2018

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01N25/10
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Use of polymers which contain PA1 (a) 0.1 to 100 mol % of vinylamine units or ethyleneimine units, PA1 (b) 0 to 99.9 mol % of units of at least one monomer from the group consisting of open-chain N-vinylcarboxamides, vinyl formate, vinyl acetate, vinyl propionate, vinyl alcohol, C.sub.1 - to C.sub.6 -alkyl vinyl ethers, monoethylenically unsaturated C.sub.3 - to C.sub.8 -carboxylic acids, their esters, nitriles, amides and anhydrides, N-vinylurea, N-vinylimidazoles and N-vinylimidazolines and PA1 (c) 0 to 5 mol % of units of monomers having at least two ethylenically unsaturated double bonds, in copolymerized form, the sum of (a), (b) and (c) in mol % always being 100, as biocide.