Patent ID: 6756473
Filing Date: 2004-06-29
Classification: C08G

Abstract:
Process for the preparation of neutral compounds of the general formula (I), in whichR1 and R2, independently of one another, each represent H or C1 to C9-alkyl, or wherein R2 represents CH2â€”Oâ€”R3, with R3=H or C1 to C9-alkyl, cycloalkyl or aralkyl, when R1 represents H, and n represents an integer from 2 to 200, comprising reacting monomers of the general formula (II), in whichR1 and R2 have the abovementioned meanings, with an oxidizing agent, wherein the reaction is carried out in an organic solvent and the oxidizing agent is used in an amount of 50 to 99.9% of the stoichiometrically required amount.