Abstract: Antimicrobial agents comprise 2,2,6,6-tetramethyl-4-piperidine derivatives. When added to resins, these antimicrobial agents provide antimicrobial resin compositions, which in turn provide antimicrobial articles. These antimicrobial agents provide resins, synthetic fibers or the like with not only outstanding antimicrobial activity but also excellent heat resistance, weatherability and deterioration resistance without impairing the transparency and safety of these materials.

Abstract: The present invention provides a protective film with high mechanical strength free from dust. A protective film 14 of an optical recording medium 2 is formed by applying and curing a composition for protective films obtained by dispersing in a curable binder material a first lubricant compatible with said binder material and a second lubricant incompatible with said binder material but compatible with said first lubricant. The incompatible second lubricant is stably and homogeneously dispersed to enhance lubricity and slidability while any excessive amount of the lubricant does not deposit on the surface of the protective film. The binder material is desirably photocurable.

Abstract: An epoxy resin composition according to the present invention is one initiating cationic polymerization upon irradiation with energy rays. The epoxy resin composition is formed of at least bisphenol epoxy resin (A) as an active ingredient, epoxy resin (B) shown in the following formula and cationic polymerization catalyst (C).