Patent attributes
Use of a polymer as a levelling agent or anti-cratering agent, said polymer comprising at least one fluorinated unit represented by formula 1, (Formula 1) wherein R?1 is a moiety represented by Cn?F2n+1?-(CH2?)m?-, ΛCn?F2n?-(CH2?)m?-, Cn?F2n+1?-(CII2?)m?-(OCII2?CIIR?5)p?-, ΛCn?F2n?-(CH2?m?-(OCH2?CHR?5)p′? Cn?F2n+1?-(CII2?)m?-X-, ACn?F2n?-(CII2?)m?-X-ΛCn?F2n?-(CH2?)m?-(OCH2?CHR?5)p?-X or Cn?F2n+1?-(CII2?)m?-(OCII2?CIIR?5)p?-X-; wherein A=H, Cl, Br, I, a C1–12? alkyl or a OC1–12 ?alkyl, wherein 4≦n≦20,0≦m˜≦4 and 0≦p≦20, wherein X is a spacer moiety selected from the group consisting of esters, amides, sulphoamides, mercapto groups, poltyurethane groups and alkyl groups, wherein R?2, is H, a metal moiety, an (alkyl)ammonium moiety or an alkyl group, Cn?F2n+1?-(CII2?)m?-, ACn?F2n?-(CII2?)m?-, Cn?F2n+1?-(CII2?)m?-(OCII2?CIIR?5)p?-, ΛCn?F2n?-(CH2?)m?-(OCH2?CHR?5)p′? Cn?F2n+1?-(CH2?)m?-X-, ΛCn?F2n?-(CH2?)m?-X-, ACn?F2n?-(CH2?)m?-(OCH2?CHR?5)p?-X or Cn?F2n+1?-(CH2?)m?-(OCH2?CHR?5)p?-X-; wherein A=H, Cl, Br, I, C1–12? alkyl or OC1-12 alkyl, wherein 4≦n≦20, 0≦m≦4 and 0≦p≦20, wherein X is a spacer moiety selected from the group consisting of esters, amides, sulphoamides, mercapto groups, polyurethane groups and alkyl groups, wherein R?3 and R?4 are independently selected from the group consisting of H, alkyl-groups and phenyl-groups and wherein R?5 is H and/or methyl group.
