Patent ID: 6458348
Filing Date: 2002-10-01
Classification: A01N

Abstract:
A method of controlling unwanted microorganisms which comprises treating the microorganisms or a material which is to be protected against damage caused by infestation of the microorganisms with an effective amount of a polymer 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+Zâˆ’, where Z is the radical of an organic or inorganic acid, COOH, COO-alkyl, CONH2, CONH-alkyl, CON(alkyl)2, CN and SO3H; and the indices x in each case independently of one another are an integer from 1 to 20, and their corresponding acid addition salts as biocides.