Patent ID: 7268199

Claim:
A particulate structure, linear structure, sheet or three-dimensional structure, comprising: a particulate structure, linear structure, sheet or three-dimensional structure having a hydrophobic surface which is hydrophilized by treatment with at least on its surface, a hydrophilicizing amount of at least one alkoxylated polyvinylamine, where at least some of the polyvinylamine nitrogen atoms bear radicals of the formula I: CH 2 —CR 1 R 2 —O m CH 2 —CHR 3 —O n H (I) where R 1 , R 2 , R 3 , m, and n are as follows: R 1 is C 2 -C 28 -alkyl, C 2 -C 28 -alkenyl, C 6 -C 16 -aryl, or C 7 -C 16 -arylalkyl, R 2 is hydrogen or methyl, R 3 is hydrogen or methyl, m is an integer from 1 to 20, and n is 0 or an integer from 1 to 100, and where the value n of the variable n in the side chains of formula I, averaged over the number of amino groups in the polyvinylamine, is in the range from 0.1 to 100.