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Chūō-ku, Japan

Nabemoto K.,University of Miyazaki | Sakurada Y.,University of Miyazaki | Ota Y.,University of Miyazaki | Takami K.,Ube Nitto Kasei Co. | And 4 more authors.
Japanese Journal of Applied Physics | Year: 2012

An anti-soiling layer was coated on a poly(methyl methacrylate) (PMMA) substrate. The anti-soiling layer was prepared by coating the acrylic urethane capping layer, the inorganic/organic nano-graded intermediate layer, and the photocatalytic surface layer including modified WO 3 and partial hydrolyzed tetraethyl orthosilicate. The layers were coated by spin-coat method. The photocurrent from each subcell of the InGaP/InGaAs/ Ge triple-junction solar cell can be calculated by multiplying the solar spectrum of AM1.5D (850W/m 2), the transmittance of the PMMA substrate, and the spectral response of the triple-junction solar cell. After 8 months exposure, the reduction rate of photocurrent of the sample without antisoiling coat was 9.6%. On the other hand, that with anti-soiling coat could be suppressed to 3.3%. © 2012 The Japan Society of Applied Physics.


Nishioka K.,University of Miyazaki | Nabemoto K.,University of Miyazaki | Sakurada Y.,University of Miyazaki | Ota Y.,University of Miyazaki | And 3 more authors.
Conference Record of the IEEE Photovoltaic Specialists Conference | Year: 2011

An anti-soiling layer was coated on the PMMA substrates. The anti-soiling layer was prepared by coating the inorganic/organic nano-graded intermediate layer (Ube-Nitto Kasei Co., Ltd.) and photocatalytic surface layer including modified WO 3 (ILUMIO®, Sumitomo Chemical Co., Ltd.) and partial hydrolyzed tetraethylorthosilicate (Wako Pure Chemical Industries, Ltd.). After 6 months, the reduction rate of photocurrent without anti-soiling coat was 7.5%. On the other hand, that with anti-soiling coat could be suppressed to 3%. The experimental environment of the exposure site is clean, and there is a lot of rainfall. It is considered that the effect of the anti-soiling coat must be more significant if CPV systems are installed in dusty areas. © 2011 IEEE.


Trademark
Ube Nitto Kasei Co. | Date: 2002-02-19

[ Sperical silica particles for use as extenders and fillers for paint, abrasives, rubber, plastics, adhesives, sealants, ceramics, optical diffusing agents, inks, production of slip-improving agents, and decorative materials; ] silica for use in [ the chemical, plastics, metallurgical, glass, paper, ceramic, photography, agricultural, horticultural, forestry, commercial and residential building, construction, automobile, automotive, insulation, packaging, engineering, energy,] electronics, including LCD spacers [, pharmaceutical, cosmetic, fragrance, textile, leather, synthetic rubber, health care, food, paint, mould making, semi-conductor, microchip, and terrestrial photovoltaic industries].


Patent
Ube Nitto Kasei Co. and Ube Industries | Date: 2010-09-09

A method for producing a flexible metal laminate includes continuously thermocompression-bonding laminate metal foils to a resin film. The thermocompression-bonding step is conducted by placing a protection metal foil between a pressure surface of a heat and pressure forming apparatus and the laminate metal foils. When the protection metal foil is subjected to an abrasion resistance test, in which the protection metal foil is placed such that a matte surface of the protection metal foil contacts a plate material having a surface equivalent to the pressure surface and in which the matte surface is rubbed against the surface of the plate material by applying a load to a shiny surface of the protection metal foil and pulling the protection metal foil, a streak is found on the matte surface only in a case where the load is over 500 g per area of 76 mm26 mm.


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Trademark
Ube Nitto Kasei Co. | Date: 1975-04-08

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