TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The shell comprises an oxide comprising at least one selected from Si, Al, Zr, Sn, Sb and rare earth elements. The shell comprises silicon oxide. The shell has a thickness of 2-10 nm. The core-shell type zinc oxide particles have an average particle size of greater than or equal to 5 nm. The core of the core-shell type zinc oxide particles has an average particle size of 5-40 nm. The binder comprises a curing catalyst. The binder has a weight-average molecular weight (Mw) of 1000-10000.    TECHNOLOGY FOCUS - POLYMERS - Preferred Film: The coating layer comprises the core-shell type zinc oxide in an amount of greater than or equal to 10 wt.%. The film comprises a barrier layer on the plastic film or on the coating layer (preferably plastic film), where the barrier layer comprises at least one organic layer and at least one inorganic layer. The film has an absorbance at 350 nm of greater than or equal to 2; a haze value of less than or equal to 5%. The coating layer has a thickness of 1-50 mu m. The film has a thickness of 1-1000 mu m. The coating layer comprises the binder in an amount of 90-60 wt.%. Preferred Components: The plastic film comprises polycarbonate, polymethylmethacrylate or polyolefin; or polyethylene terephthalate. EXAMPLE - A binder composition was prepared by mixing alkoxy silicon oligomer (100 parts by weight) as a siloxane series binder, titanium series curing catalyst (5 parts by weight) and butanol (100 parts by weight). To core-shell type zinc oxide particles (10 parts by weight) (the average particle size was 24 nm, the core was ZnO particle having average particle size of 20 nm, the shell composition was SiO2/Al2O3 and the shell thickness was 2 nm), butanol (100 parts by weight) and alkoxysilicon oligomer (100 parts by weight) were added, and then dispersed with a planetary ball mill, to thus obtain butanol dispersion comprising the core-shell type zinc oxide particles-containing butanol dispersion. The core-shell type zinc oxide particles-containing butanol dispersion was added into the binder composition so as to have the content of the core-shell type zinc oxide particles of 20 wt.% to the coating composition, and then stirred to obtain the coating composition. On a polyethylene terephthalate film, the above coating composition was coated so as to have a thickness of 5 mu m, and then dried for 6 hours at room temperature to obtain a protective film.