Use of water-soluble polymers as biocides

US6458348B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Jurgen Tropsch · Lichtenfels, DE
• Dieter Zeller · Speyer, DE
• Anton Negele · Deidesheim, DE
• Norbert Mahr · Schifferstadt, DE
• Jürgen Decker · Speyer, DE

Key dates

• Filing date: Mar 7, 2000
• Grant date: Oct 1, 2002
• Expiry date: Mar 7, 2020

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01N37/36
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The use of polymers comprising as essential structural elements units of the formula I and/or II in whichR1 is H, alkyl, cycloalkyl, aryl or aralkyl,R2 and R3 independently of one another are defined as for R1 or are selected from substituted alkyl, substituted cycloalkyl, substituted aryl or substituted aralkyl, the substituents being selected from OH, O-alkyl, O-aryl, SH, S-alkyl, S-aryl, NH2, NH-alkyl, NH-aryl, N(alkyl)2, in protonated form if desired,N(alkyl)3+Z31 , where Z is the radical of an organic or inorganic acid, COOH, COO-alkyl, CONH2, CONH-alkyl, CON(alkyl)2, CN and SO3H; andthe indices x in each case independently of one another are an integer from 1 to 20,and their corresponding acid addition salts as biocides.