AIST Stories No2
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12From AIST to the Innovative Worldboard, are low permeation of fuel through the tank walls as well as safety. Currently, a search can be said to be underway for a new barrier material for tanks that features a high degree of safety.“Maruhachi and Chugoku Kogyo are, independently and jointly with AIST, prototyping lightweight fuel tanks whose inner surfaces are coated with Claist and conducting performance testing. The arrival of a hydrogen society looks like becoming a perfect opportunity for Claist to spread throughout the world. I do not want to miss this golden opportunity. I plan to publicize Claist on a global basis and in several years’ time, proceed through to standardization.”Furthermore, in addition to its gas barrier properties, transparency and flexibility are properties that one can anticipate to be applicable in the electronics field headed by smartphones. This is on account of the increased number of models of electronic equipment using organic electronics (OLED)*6 in their displays. High transparency, heat resistance, solvent resistance, and gas barrier properties that shield oxygen and water vapor are required of plastic substrates used in OLEDs but water vapor molecules are small and cannot be shielded easily.“The ideal plastic that satisfies all of these properties does not yet exist. However, Claist has the potential to satisfy all of these requirements. Using a synthetic clay results in high transparency and it is thought that this can realize the “viewability” that is important for displays.”The problem is that at present, the mechanical strength of Claist is not yet that high. AIST is proceeding with further R&D directed at realizing both flexibility and resistance to breakage.Consortium inaugurated: alliances directed at diverse application developmentClaist can be utilized in the most familiar of fields, for example, food and pharmaceutical packaging materials. Adopting a three-layer film structure with the outer layer comprised of PET film, the middle layer Claist, and the Claist development evolution▲‌‌The scale of industry based on Claist is estimated at approximately JPY300 billion. If progress is made in application development, this will surely lead to revitalization of the economy in the Tohoku region.JointJointJointJointJointJointJointJointJointJointHigh durability lacquer wareTohoku Kogei: Tamamushi lacquer wareHydrogen tanksFuel cell sealantsUV shielding films, IR reflection filmsCPU heat dissipation sheetSumitomo Seika Chemicals: Tough Claist A:Joint patent applicationsPrinted electronics substrate Sumitomo Seika Chemicals: Tough ClaistElectronic equipmentGaskets, packingJapan Matex: Clear MatexPharmaceuticalpackaging, etc.Fireproof lighting coversMiyagikasei: “Nunsheed”AISTBasic patentsApplication PatentsSolar cellsFlexible substratesOrganic electronics

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