POLYIMIDE SHEET
PROBLEM TO BE SOLVED: To provide a high-quality polyimide sheet which prevents the occurrence of a scratch in polyimide films when they are laminated. SOLUTION: The polyimide sheet is produced by laminating a plurality of the polyimide films of substantially one kind each of which has a thickness of...
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| creator | HIDAKA SHOTARO OTA TSUNEO |
| description | PROBLEM TO BE SOLVED: To provide a high-quality polyimide sheet which prevents the occurrence of a scratch in polyimide films when they are laminated. SOLUTION: The polyimide sheet is produced by laminating a plurality of the polyimide films of substantially one kind each of which has a thickness of 250 μm or below and contains 0.1-0.9 wt.% per film resin weight of inorganic particles 1.5 μm or below in a particle size without additives. The inorganic particles have an average particle size of 0.7 μm or below and a particle size distribution in which the volume of the inorganic particles of 0.6 μm or below in a particle size is at least 80% of the total volume of the inorganic particles. COPYRIGHT: (C)2011,JPO&INPIT |
| format | Patent |
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SOLUTION: The polyimide sheet is produced by laminating a plurality of the polyimide films of substantially one kind each of which has a thickness of 250 μm or below and contains 0.1-0.9 wt.% per film resin weight of inorganic particles 1.5 μm or below in a particle size without additives. The inorganic particles have an average particle size of 0.7 μm or below and a particle size distribution in which the volume of the inorganic particles of 0.6 μm or below in a particle size is at least 80% of the total volume of the inorganic particles. 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| subjects | CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS |
| title | POLYIMIDE SHEET |
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