Antistatic plastic film

A plastic film comprising a plastic base film and provided thereon a layer containing a polyvinylidene chloride and an antistatic layer containing an ionic polymeric compound in that order, wherein the ionic polymeric compound is a polymer having a structure unit represented by the following Formula I, II-A or II-B:

• ##STR21## wherein R.sub.1 represents an alkyl group having 1 to 4 carbon atoms, a hydrogen atom, a halogen atom or --CH.sub.2 COOM;
• Y represents a hydrogen atom or --COOM, wherein M represents a hydrogen atom or a cation;
• L represents --CONH--, --COO--, --CO-- or --O--;
• J represents an alkylene group having 1 to 12 carbon atoms, an arylene group, an arylenealkylene group or an alkylenearylene group;
• Q represents an ionic group;
• and p and q each represent 0 or 1;
• ##STR22## wherein R.sub.3, R.sub.4, R.sub.5, and R.sub.6 each represent an alkyl group having 1 to 4 carbon atoms, provided that R.sub.4 and R.sub.6 may bond together to form a nitrogen-containing hetero cyclic ring;
• A, B and D each represent an alkylene group having 2 to 10 carbon atoms, an arylene group, an alkenylene group, an arylenealkylene group, an alkylenearylene group, --R.sub.7 COR.sub.8 --, --R.sub.9 COOR.sub.10 OCOR.sub.11 --, --R.sub.12 OCOR.sub.13 COOR.sub.14, --R.sub.1 --(OR.sub.16)m--, --R.sub.17 CONHR.sub.18 NHCOR.sub.19 --, --R.sub.20 OCONHR.sub.21 NHCOR.sub.22 --, --R.sub.23 NHCONHR.sub.24 NHCONHR.sub.25 -- wherein R.sub.7, R.sub.8, R.sub.9, R.sub.11, R.sub.12, R.sub.14, R.sub.15, R.sub.16, R.sub.17, R.sub.19, R.sub.20, R.sub.22, R.sub.23 and R.sub.25 each represent an alkyl group, R.sub.10, R.sub.13, R.sub.14, R.sub.21 and R.sub.24 each represent an alkylene group, an arylene group, an alkenylene group, an arylenealkylene group, an alkylenearylene group, and m represents an integer of 1 to 4;
• E represents an alkylene group having 2 to 10 carbon atoms, an arylene group, an alkenylene group, an arylenealkylene group, an alkylenearylene group, --R.sub.7 COR.sub.8 --, --R.sub.8 COOR.sub.10 OCOR.sub.11 --, --R.sub.12 OCOR.sub.13 COOR.sub.14, --R.sub.15 --(OR.sub.16)m--, --R.sub.17 CONHR.sub.18 NHCOR.sub.19 --, --R.sub.20 OCONHR.sub.21 NHCOR.sub.22 --, --R.sub.23 NHCONHR.sub.24 NHCONHR.sub.25 --, --NHCOR.sub.26 CONH-- wherein R.sub.7, R.sub.8, R.sub.9, R.sub.11, R.sub.12, R.sub.14, R.sub.15, R.sub.16, R.sub.17, R.sub.19, R.sub.20, R.sub.22, R.sub.23 and R.sub.25 each represent an alkyl group, R.sub.10, R.sub.13, R.sub.14, R.sub.21, R.sub.24 and R.sub.26 each represent an alkylene group, an arylene group, an alkenylene group, an arylenealkylene group, an alkylenearylene group, and m represents an integer of 1 to 4;
• Z.sub.1 and Z.sub.2 represent a non-metallic atomic group necessary to form a 5 or 6 membered ring together with --N.dbd.C--;
• X represents an anion;
• and n represents an integer of 5 to 300.