Patent ID: 7879962

Claim:
Hydrophilic powders or hydrophilic manufactured articles comprising one or more thermoprocessable copolymers selected from the group consisting of: ethylene/chlorotrifluoroethylene (E/CTFE) polymers, ethylene/tetrafluoroethylene (E/TFE) polymers, and chlorotrifluoroethylene (CTFE) polymers, containing monomeric units deriving from at least one acrylic monomer of formula (I): CH 2 ═CH—CO—O—R 2 (I) wherein R 2 is a linear or branched C 1 -C 20 alkyl, or a cycloalkyl, optionally containing heteroatoms and/or chlorine atoms; wherein after hydrolysis treatment on the surface of the powder or of the manufactured article, one or more of the following units are present in an amount of at least 0.5% by moles with respect to the total amount of monomers but excluding monomers of formula (I): C(COOH)H—CH 2 —; —C(COOM)H—CH 2 —; wherein M=alkaline ion, wherein the CTFE copolymers comprise 0.01 to 5% by moles the acrylic monomer of formula (I); and the E/CTFE and E/TFE copolymers comprise 0.1 to 30% by moles of the acrylic monomer of formula (I).