Patent ID: 6512058
Filing Date: 2003-01-28
Classification: C08F

Abstract:
A method of producing modified vinyl ether polymers, wherein vinyl either polymers comprising recurring units having formula (I) where R represents C2-C4 alkyl group and x denotes an integer from 10 to 1000, are partially transetherified with compounds having the formula Yâ€”OH, wherein Y represents aliphatic and/or cycloaliphatic hydrocarbon groups comprising 5 to 30 carbon atoms, wherein the hydrogen atoms are optionally replaced at least in part by halogen atoms and/or aryl radicals, and/or represents aliphatic, cycloaliphatic and/or aromatic groups with a molecular weight of up to 6000 which contain at least one either group â€”Oâ€” or an ester group â€”COOâ€” within the molecule, in the presence of compounds of the platinum metals with the release of the corresponding C2-C4 alcohols, wherein on the average at least one R radical is replaced by a Y radical per molecule of vinyl ether polymer.