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An active energy ray-curable antistatic coating composition contains (A) inorganic oxide fine particles having a side chain having a molecular weight of at least 300 and having a functional group and (B) an antistatic agent containing at least a quaternary ammonium salt group-containing polymer, a q

An active energy ray-curable antistatic coating composition contains (A) inorganic oxide fine particles having a side chain having a molecular weight of at least 300 and having a functional group and (B) an antistatic agent containing at least a quaternary ammonium salt group-containing polymer, a quaternary ammonium salt group-containing silane coupling agent and/or a hydrolysis condensate of the silane coupling agent, and optionally contains (C) a polyfunctional (meth)acrylate having at least 3 (meth)acryloyl groups in a molecule.

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1. An active energy ray-curable antistatic coating composition, which comprises:(A) fine inorganic oxide particles having a side chain having a molecular weight of at least 300 and having a functional group, (B) an antistatic agent containing at least one member selected from the group consisting of

1. An active energy ray-curable antistatic coating composition, which comprises:(A) fine inorganic oxide particles having a side chain having a molecular weight of at least 300 and having a functional group, (B) an antistatic agent containing at least one member selected from the group consisting of a quaternary ammonium salt group-containing polymer, a quaternary ammonium salt group-containing silane coupling agent and a hydrolysis condensate of the silane coupling agent, and (C) a polyfunctional (meth)acrylate having at least 3 (meth)acryloyl groups in a molecule. 2. The antistatic coating composition according to claim 1, wherein the functional group of (A) is a radical-polymerizable functional group.3. An active energy ray-curable antistatic coating composition, which comprises:(A) fine inorganic oxide particles treated with a silane coupling agent having at least one polar group selected from the group consisting of a polyalkylene oxide, a carboxylic acid and a carboxylic acid ester or a silane coupling agent having a bulky structure having a polar group having a side chain that has a molecular weight of at least 300 and having a functional group, and (B) an antistatic agent containing at least one member selected from the group consisting of a quaternary ammonium salt group-containing polymer, a quaternary ammonium salt group-containing silane coupling agent and a hydrolysis condensate of the silane coupling agent. 4. The antistatic coating composition according to claim 3, wherein the silane coupling agent is an organic compound having a functional group as shown in formula (1), wherein X and Y are respectively independently an oxygen atom, a sulfur atom or an imino group.5. The antistatic coating composition according to claim 3, wherein the silane coupling agent is a reaction product of an alkoxysilane compound having an isocyanate group and a hydroxyl group-containing acrylate.6. The antistatic coating composition according to claim 3, wherein the silane coupling agent is a reaction product of a mono(meth)acrylic acid ester of α,ω-hydroxy-terminated polyalkylene glycol and an alkoxysilane compound having an isocyanate group.7. The antistatic coating composition according to claim 3, wherein the silane coupling agent is a reaction product of an alkoxysilane compound having a mercapto group and an at least difunctional polyfunctional (meth)acrylate.8. An active energy ray-curable antistatic coating composition, which comprises:(A) fine inorganic oxide particles having a side chain silyl ether group having the structure ?O?Si?R?S?P, wherein R is a C2-C10 alkylene group which may be branched and P is a polymer unit having at least one (meth)acryloyl group, having a molecular weight of at least 300 and having a functional group, and (B) an antistatic agent containing at least one member selected from the group consisting of a quaternary ammonium salt group-containing polymer, a quaternary ammonium salt group-containing silane coupling agent and a hydrolysis condensate of the silane coupling agent. 9. The antistatic coating composition according to claim 8, which further comprises (E) an organic solvent in addition to the components (A) and (B).10. An active energy ray-curable antistatic coating composition, which comprises:(A) fine inorganic oxide particles having a side chain having a molecular weight of at least 300 and having a functional group and (B) an antistatic agent containing at least one member selected from the group consisting of a quaternary ammonium salt group-containing polymer, a quaternary ammonium salt group-containing silane coupling agent and a hydrolysis condensate of the silane coupling agent, said fine inorganic particles being prepared by bonding a silica sol and/or a silicate by way of a sulfide bond with a polymer having a (meth)acryloyl bond obtained by a first step of hydrolysis-condensing a mercapto group-containing silane coupling agent and a silica sol and/or a silicate to prepare a mercapto group-containing silica sol and/or silicate, a second step of polymerizing a monomer having an epoxy group and one radical-polymerizable group or copolymerizing the monomer with another monomer having one radical-polymerizable group, in the presence of the mercapto group-containing silica sol and/or silicate prepared in the first step, to prepare a polymer having an epoxy group bonded with the silica sol and/or silicate by way of a sulfide bond, and a third step of adding a compound having a carboxyl group and a (meth)acryloyl group to the polymer prepared in the second step. 11. An active energy ray-curable antistatic coating composition, which comprises:(A) fine inorganic oxide particles having a side chain having a molecular weight of at least 300 and having a functional group and (B) an antistatic agent that is a copolymer of (meth)acrylic acid ester, (meth)acrylic acid amide and/or a styrene derivative which has a quaternary ammonium salt group. 12. An active energy ray-curable antistatic coating composition, which comprises:(A) fine inorganic oxide particles having a side chain having a molecular weight of at least 300 and having a functional group and (B) an antistatic agent that comprises a quaternary ammonium salt group-containing polymer that has a (meth)acryloyl group on a side chain. 13. An active energy ray-curable antistatic coating composition, which comprises:(A) fine inorganic oxide particles having a side chain having a molecular weight of at least 300 and having a functional group and (B) an antistatic agent that comprises a quaternary ammonium salt group-containing polymer that has a polydimethylsiloxane structure on the main chain of the polymer, on the side chain of the polymer or a combination thereof. 14. An active energy ray-curable antistatic coating composition, which comprises:(A) fine inorganic oxide particles having a side chain having a molecular weight of at least 300 and having a functional group and (B) an antistatic agent that comprises a copolymer of a quaternary ammonium salt group-containing (meth)acrylic acid ester a copolymer of a quaternary ammonium salt group-containing (meth)acrylic acid amide, or a mixture thereof, that contains an α,ω-dimercaptopolydimethylsiloxane as a copolymerizable component. 15. An active energy ray-curable antistatic coating composition, which comprises:(A) fine inorganic oxide particles having a side chain having a molecular weight of at least 300 and having a functional group and (B) an antistatic agent that comprises a trialkoxysilyl group and a silane coupling agent that has a molecular weight of at least 400 and that has a urethane group or a thioether group, or a hydrolysis condensate thereof. 16. An active energy ray-curable antistatic coating composition, which comprises:(A) fine inorganic oxide particles having a side chain having a molecular weight of at least 300 and having a functional group, (B) an antistatic agent containing at least one member selected from the group consisting of a quaternary ammonium salt group-containing polymer, a quaternary ammonium salt group-containing silane coupling agent and a hydrolysis condensate of the silane coupling agent, (C) a polyfunctional (meth)acrylate having at least 3 (meth)acryloyl groups in a molecule and (D) a polymerization initiator. 17. A molded product comprising a film obtained by active energy ray-curing the antistatic coating composition as claimed in claim 1.18. A molded product comprising a film obtained by active energy ray-curing the antistatic coating composition as claimed in claim 3.19. A molded product comprising a film obtained by active energy ray-curing the antistatic coating composition as claimed in claim 8.20. A molded product comprising a film obtained by active energy ray-curing the antistatic coating composition as claimed in claim 10.21. A molded product comprising a film obtained by active energy ray-curing the antistatic coating composition as claimed in claim 11.22. A molded product comprising a film obtained by active energy ray-curing the antistatic coating composition as claimed in claim 12.23. A molded product comprising a film obtained by active energy ray-curing the antistatic coating composition as claimed in claim 13.24. A molded product comprising a film obtained by active energy ray-curing the antistatic coating composition as claimed in claim 14.25. A molded product comprising a film obtained by active energy ray-curing the antistatic coating composition as claimed in claim 15.26. A molded product comprising a film obtained by active energy ray-curing the antistatic coating composition as claimed in claim 16.27. A resin-made film, sheet or molded product having a film obtained by active energy ray-curing the antistatic coating composition as claimed in claim 1.28. A resin-made film, sheet or molded product having a film obtained by active energy ray-curing the antistatic coating composition as claimed in claim 3.29. A resin-made film, sheet or molded product having a film obtained by active energy ray-curing the antistatic coating composition as claimed in claim 8.30. A resin-made film, sheet or molded product having a film obtained by active energy ray-curing the antistatic coating composition as claimed in claim 10.31. A resin-made film, sheet or molded product having a film obtained by active energy ray-curing the antistatic coating composition as claimed in claim 11.32. A resin-made film, sheet or molded product having a film obtained by active energy ray-curing the antistatic coating composition as claimed in claim 12.33. A resin-made film, sheet or molded product having a film obtained by active energy ray-curing the antistatic coating composition as claimed in claim 13.34. A resin-made film, sheet or molded product having a film obtained by active energy ray-curing the antistatic coating composition as claimed in claim 14.35. A resin-made film, sheet or molded product having a film obtained by active energy ray-curing the antistatic coating composition as claimed in claim 15.36. A resin-made film, sheet or molded product having a film obtained by active energy ray-curing the antistatic coating composition as claimed in claim 16.37. A cured film-formed molded product having a cured film formed by a process comprising:applying the antistatic coating composition as defined in claim 8 onto a substrate surface, drying the applied composition to form a film, processing the substrate and/or the film, and then curing the film by irradiation with active energy rays. 38. An antistatic coating obtained by active energy ray-curing the antistatic coating composition as defined in claim 1.39. An antistatic coating obtained by active energy ray-curing the antistatic coating composition as defined in claim 3.40. An antistatic coating obtained by active energy ray-curing the antistatic coating composition as defined in claim 8.41. An antistatic coating obtained by active energy ray-curing the antistatic coating composition as defined in claim 10.42. An antistatic coating obtained by active energy ray-curing the antistatic coating composition as defined in claim 11.43. An antistatic coating obtained by active energy ray-curing the antistatic coating composition as defined in claim 12.44. An antistatic coating obtained by active energy ray-curing the antistatic coating composition as defined in claim 13.45. An antistatic coating obtained by active energy ray-curing the antistatic coating composition as defined in claim 14.46. An antistatic coating obtained by active energy ray-curing the antistatic coating composition as defined in claim 15.47. An antistatic coating obtained by active energy ray-curing the antistatic coating composition as defined in claim 16.