Patent ID: 7211309
Filing Date: 2007-05-01
Classification: C08J,C09K,Y10S,Y10T

Abstract:
1. An antistatic film comprising a polyester film and an antistatic coating film on at least one surface of the polyester film, the antistatic coating film comprising a polymer having a polymerized unit represented by the following formula (1): wherein R 1 and R 2 each independently represent a hydrogen atom or a methyl group, R 3 represents an alkylene group having 2 to 10 carbon atoms, R 4 and R 5 each independently represent an alkyl group having 1 to 5 carbon atoms, R 6 represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms or a hydroxyalkyl group having 2 to 10 carbon atoms, and Y − represents a halogen ion, a halogenated alkyl ion, a nitrate ion, a sulfate ion, an alkyl sulfate ion, a sulfonate ion or an alkyl sulfonate ion, wherein the polymer further comprises a polymerized unit derived from a reactive acrylic monomer in addition to the polymerized unit represented by the formula (1), wherein the antistatic coating film comprises a binder resin in addition to the polymer, the amounts of the polymer and the binder resin are 10 to 90 wt % and 10 to 90 wt %, respectively, based on their total and the binder resin is at least one selected from the group consisting of a polyester resin and an acrylic resin, and wherein the antistatic coating film further comprises 3 to 25 parts by weight of polymer having an oxazoline group based on 100 parts by weight of the total of the polymer and the binder resin.