PACKAGE OF A HEAT-BENT POLARISING SHEET PACKAGE AND INJECTION-MOULDED POLARISING LENS
[Object] To provide a package of a heat-bent polarizing sheet that does not require preliminary drying before injection molding nor substantial protective-film removal work even after preservation (storage, transfer, or transportation) and an injection-molded polarizing lens that uses this heat-bent...
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| creator | AKAKI, MASAYUKI FUJII, TAKASHI KIMURA, HIDEAKI |
| description | [Object] To provide a package of a heat-bent polarizing sheet that does not require preliminary drying before injection molding nor substantial protective-film removal work even after preservation (storage, transfer, or transportation) and an injection-molded polarizing lens that uses this heat-bent polarizing sheet.[Solution] A package of a heat-bent polarizing sheet for producing an injection-molded polarizing lens and an injection-molded polarizing lens that uses said sheet, in which a laminated polarizing sheet prepared by bonding a transparent plastic sheet onto each of two sides of a polarizing film formed of a uniaxially stretched polyvinyl alcohol resin film with an adhesive layer interposed therebetween is used as an individual laminated polarizing sheet that has an original plate shape for individual lenses, the individual laminated polarizing sheet is heat-bent to form a spherical surface or an aspherical surface under heating to prepare a heat-bent polarizing sheet, the heat-bent polarizing sheet is set onto a mold, and a transparent resin for lenses is injection-molded onto a concave surface of the heat-bent polarizing sheet,in which the heat-bent polarizing sheet is a heat-bent polarizing sheet that is cumulatively packaged by means of a non-adhesive isolation film so as to withstand moisture and then stored or transported and can be used in injection molding without performing preliminary drying as a pretreatment of injection molding and without substantial protective-film removal work. |
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| language | eng ; fre ; ger |
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| subjects | ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS PHYSICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS STORING TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL |
| title | PACKAGE OF A HEAT-BENT POLARISING SHEET PACKAGE AND INJECTION-MOULDED POLARISING LENS |
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