Antistatic film
AssigneeMitsubishi Paper Mills Limited
InventorsAkira Furukawa, Hidetsugu Oda
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Abstract
The present invention provides a curable antistatic agent polymer excellent in water resistance which is obtained by polymerizing a mixture of polymerizable monomer components comprising two components of a polymerizable vinyl monomer (I) having a sulfonic acid group or a salt thereof as a substituent and a monomer (II) represented by the following formula (II) or a mixture of these two components and an additional polymerizable monomer component in a water-miscible organic solvent or a mixed solvent comprising a water-miscible organic solvent and water in the presence or absence of a resin soluble in said solvent: ##STR1## wherein R.sup.1 and R.sup.2 each represents a hydrogen atom or a methyl group and R.sup.3 represents a hydrogen atom or an alkyl group of 1 to 8 carbon atoms.
Claims13
An antistatic layer comprising:
- a support;
- a layer containing a curable antistatic polymer dispersion;
- and
- a layer containing gelatin,
- said layers being provided on the support in this order or in the reverse order and said layers being contiguous to each other,
- wherein said curable antistatic polymer is obtained by the method comprising the steps of polymerizing a mixture of polymerizable monomer components comprising;
- 40to 90 percent by weight, relative to the total weight of the polymerizable monomer components, of a polymerizable vinyl monomer (I) having a sulfonic acid group or a salt thereof as a substituent;
- and
- 10 to 60 percent by weight, relative to the total weight of the polymerizable monomer components, of a monomer (II) represented by the following formula (II) ##STR3## wherein R.sup.1 and R.sup.2 each represents a hydrogen atom or a methyl group and R.sup.3 represents a hydrogen atom or an alkyl group of 1 to 8 carbon atoms;
- or
- a mixture of 40 to 90 percent by weight, relative to the total weight of the polymerizable momomer components, of monomer (I) and 10 to 60 percent by weight, relative to the total weight of the polymerizable monomer components, of monomer (II) and 1 to 30 percent by weight, relative to the total weight of the polymerizable monomer components, of an additional polymerizable monomer component which is copolymerizable with monomer (I) and monomer (II);
- wherein said polymerization takes place in a solvent system selected from a water-miscible organic solvent and a mixed solvent comprising a water-miscible organic solvent and water.
Dependencies are inferred from the claim text.