Abstract: An apparatus for performing a weather resistance test on a composite material having a metallic, inorganic, or organic base member, and an organic material covering the base member. The apparatus includes a sample holding device disposed in a sample chamber for holding a sample of the composite material. An artificial light source irradiates light substantially in the ultraviolet light area to one surface of the sample. A dipping mechanism dips the sample in a corrosive ionized water, and dew condensation is formed through a temperature control device disposed in the sample holding device, working with a moisture source, for causing dew condensation in the surface of the sample. A cleaning device is provided for cleaning the surface of the sample, and steaming of the sample is performed through the use of a heating element disposed in the sample chamber, and the moistening means, for steaming the sample in an atmosphere of high temperature and high humidity.

Abstract: The present invention relates to a material strength measuring apparatus for specimens having a curved surface or an irregular surface with high accuracy.

Abstract: Provided is an optical filter structure which has excellent solarization resistance, and stably gives a constant wavelength distribution and constant irradiation energy for a long time, and which efficiently cuts off infrared light including near infrared light and ultraviolet light having a short wavelength and is sufficiently permeable to visible light. The optical filter structure has a glass filter 7 formed of phosphate or fluorophosphate glass containing 0.1 to 5% by weight, as an oxide, of copper oxide and an aquafilter 6 having a liquid layer 5 measuring 3 to 50 mm as a light path length, the glass filter 7 being placed either outside a container wall, 2a or 2b, of the aquafilter 6 or within the liquid layer 5, and the optical filter structure has optical characteristics that the absorption edge on a short wavelength side is a region of light having a wavelength of 250 to 330 nm and that the maximum value of the spectral transmittance on a long wavelength side beyond 780 nm is not more than 40%.

Abstract: A method of and apparatus for weather resistance test comprising a process for washing the surface of samples with a cleaner which is added at least between a process for condensing moisture on the surface of the sample after ultraviolet radiation has been applied and the process for again applying ultraviolet radiation after the process for condensing moisture. Impurities adhered to the surface of the sample and substances extracted on the surface of the sample can be removed by washing with the cleaner so that the surface of the sample to which these impurities and substances are adhered intact can be protected from being baked in the ensuing ultraviolet radiation application process. Consequently, generation of spot patterns and excessive color change of the surface of the sample can be prevented.

Abstract: Prior to weathering test for samples, of example, plastic, fiber, or paint, the samples are exposed to ultraviolet ray radiation emitted from high pressure metal halide vapor discharge lamp at an energy level capable of deteriorating the samples in a short time, while maintaining the samples at a temperature which can not be a cause of the deterioration. According to the deterioration level, samples to be subjected to the weathering evaluation test are selected.

Abstract: A sandwich glass comprising a glass plate with one or more glass plates or hard plastic sheets which are laminated and united through a resin interlayer in which the resin interlayer comprises a block copolymer (a) comprising both terminal blocks comprising a polymer of an aromatic vinyl compound and an intermediate block comprising a polymer of conjugated diene series, said both terminal blocks constituting 10-40% by weight of the copolymer and being hydrogenated in a ratio of 10% or less and said intermediate block being hydrogenated in a ratio of 90% or more, which is useful as window glasses, lightening materials, sheltering materials etc.

Abstract: A weather resistance tester comprising:(a) a U.V. radiation source,(b) a reflector,(c) a shield panel provided in the opening of the reflector and closing the opening for transmitting U.V. radiation therethrough and substantially blocking water vapor,(d) a sample support,(e) temperature adjusting device,(f) a compartment having accommodated therein the above elements (a)-(e),(g) a recycling duct provided with a heat exchanger and blower,(h) a humidifier and(i) a control device for giving operational instructions to maintain a sample on the sample support at a predetermined temperature while the lamp is on and to subject the sample to a condensation condition while the lamp is off.

Abstract: A resin composition comprising a block copolymer which comprises an intermediate block of a hydrogenated conjugated diene polymer and terminal blocks of an aromatic vinyl compound polymer, the composition being characterized in that the composition comprises:(a) 20 to 90 parts by weight of a block copolymer having terminal blocks in an amount of about 10 to about 20% by weight based on the copolymer (a), and(b) 80 to 10 parts by weight of a block copolymer mixed with the copolymer (a) and having terminal blocks in an amount of about 25 to about 35% by weight based on the copolymer (b).

Abstract: Polycarbonate molded articles having excellent weather resistance and excellent abrasion resistance in which polycarbonate molded object is coated with an abrasion resistant cured layer comprising an ultraviolet ray setting paint, through a primer layer comprising a thermoplastic acrylic (or methacrylic) polymer containing 4-8% by weight of an ultraviolet ray absorbing agent, which are substantially transparent and particularly useful as wall materials for greenhouse, ceiling materials, partition wall materials, wall materials for sunroom, substitutes for windbreak glass and the like.

Abstract: A synthetic resin composition comprising (a) a hydrogenated block-copolymer of an aromatic vinyl compound such as styrene and a conjugated diene compound such as butadiene and isoprene, (b) an ethylene-acrylate copolymer and (c) an isotactic propylene or its copolymer, which is non-toxic and superior in softness, transparency, high-temperature strength and molding characteristic, and is useful for preparing food-packings or medical appliances.

Abstract: A collapsible container with or without a lid for carrying and storing articles comprising at least one side plate formed in its inner surface with recessed portions aligned along one end thereof and each having a vertical pin supported by opposed walls defining the recessed portion, and another adjacent side plate having hinge projections provided on one of its opposite ends adjacent to the first-mentioned side plate. The hinge projections rotatably retain the vertical pins in engagement therewith to render the container completely collapsible. Each of the hinge projections disengageably abuts against an outer wall defining each of the recessed portions to impart increased buckling strength to the container.