TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Property: The synthetic smectite has hydroxyl group present on its surface which is treated with surface modification agent. Preferred Components: The synthetic smectite is synthetic hectorite, synthetic saponite and/or synthetic stevensite. The quaternary ammonium salt for organizing synthetic smectite is lauryltrimethylammonium salt, stearyltrimethylammonium salt, trioctylmethylammonium salt, distearyldimethylammonium salt, di-hydrogenated beef tallow dimethylammonium salt, distearyldibenzylammonium salt and/or N-polyoxyethylene- N-lauryl-N, N-dimethylammonium salt. The surface modification agent is silane coupling agent, titanate coupling agent, glycidyl compound, isocyanate compound, carboxylic acids and/or alcohols.    TECHNOLOGY FOCUS - POLYMERS - Preferred Process: The vinyl ester resin is synthesized from epoxy compound having alicyclic structure, or hydrogenated bisphenol A epoxy resin. Preferred Composition: The vinyl ester resin composition comprises vinyl ester resin (30-100 mass%), and reactive monomer having ethylenic unsaturated group (0-70 mass%). EXAMPLE - ST-4000D (RTM: hydrogenated bisphenol A epoxy resin) (in mass parts) (276.3) having epoxy equivalent of 725, toluene (202.5) and 4-methoxyphenol hydroquinone monomethyl ether (0.19) were added reaction flask, and temperature was increased to 800 degrees C. Dry air was blown into the flask, and stirred until the mixture became homogeneous. The mixture was mixed with acrylic acid (27.5), TPP-ZC (RTM: benzyltriphenylphosphonium chloride) (1.24), reacted at 110 degrees C for 7 hours, to obtain toluene solution of oligomer. Toluene (24 g), and Smectite STN (RTM: oleophilic synthetic smectite) (3 g) having number average particle diameter of 50 nm, aspect ratio of 50, inorganic content of 71%, and subjected to cation exchanging treatment with trioctylmethylammonium salt were mixed, and obtained smectite dispersion liquid was mixed with resultant oligomer (7 g) and Irgacure 651 (RTM: ultraviolet curing agent) (0.35 g), and composition was obtained . Gaseous components was removed from resultant composition, composition was applied on a polyethylene terephthalate film, dried the composition at 80 degrees C for 30 minutes, and covered from upper surface with polyethylene terephthalate film. The composition was cured with ultraviolet irradiation, and polyethylene terephthalate films on both sides were released, to obtain film. The obtained film had coefficient of thermal expansion of 13 ppm/ degrees C, total light transmittance of 92%, haze of 0.8%, and excellent flexibility.