Patent EP0153081A2 successfully refreshed from Google Patents.
EP0153081A2
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Metal-deposited laminated film and method for making capacitor elements using same
Assignee: Toray Industries Inc
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Filing: 1985-02-05
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Granted: —
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Expires: 2005-02-05
Abstract
Abstract A metal-deposited laminated film for a capacitor is provided, which comprises an oriented polyethylene terephthalate film having a thickness of 0.2 to 2.00 µm, on one surface of which a metal is deposited, and a propylene copolymer film bonded closely to the surface, opposite to the metal-deposited surface, of the polyethylene terephthalate film with an adhesive force of 0.1 to 2.0 g/cm. Capacitor elements are made by cutting this metal-deposited laminated film in a predetermined width, and then separating the metal-deposited polyethylene terephthalate film from the cut laminated film and successively forming the separated metal-deposited polyethylene terephthalate film into a coil.
Inventors
- 👤 Toshiya Yoshii
- 👤 Kazuo Okabe
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 19:58
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; B32B27/00; B32B27/06; B32B27/08; B32B27/32; B32B27/36; B32B7/00; B32B7/04; B32B7/12; H; H01; H01G; H01G4/00; H01G4/002; H01G4/005; H01G4/015; H01G4/018; H01G4/20; B32B2250/00; B32B2250/02; B32B2250/03; B32B2255/00; B32B2255/20; B32B2255/205; B32B2307/00; B32B2307/40; B32B2307/42; B32B2323/00; B32B2323/10; B32B2457/00; B32B2457/16; Y; Y10; Y10T; Y10T29/00; Y10T29/43; Y10T29/435; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/24975; Y10T428/31504; Y10T428/31678; Y10T428/31681; Y10T428/31786; Y10T428/31797
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
61 words
A metal-deposited laminated film for a capacitor, characterized by comprising an oriented polyethylene terephthalate film having a thickness of 0.2 to 2.0 µm, on one surface of which a metal is vacuum-deposited, and a propylene copolymer film bonded closely to the surface, opposite to the metal-deposited surface, of the polyethylene terephthalate film with an adhesive force of 0.1 to 2.0 g/cm.
Claim 2
Dependent Claim
61 words
A metal-deposited laminated film for a capacitor, characterized by comprising an oriented polyethylene terephthalate film having a thickness of 0.2 to 2.0 µm, on one surface of which a metal is vacuum-deposited, and a propylene copolymer film bonded closely to the surface, opposite to the metal-deposited surface, of the polyethylene terephthalate film with an adhesive force of 0.1 to 2.0 g/cm.
Claim 3
Dependent Claim
22 words
A metal-deposited laminated film according to claim 1, wherein the oriented polyethylene terephthalate film has a thickness of 0.2 to 1.0 µm.
Claim 4
Dependent Claim
42 words
A metal-deposited laminated film according to claim 1 or claim 2, wherein the oriented polyethylene terephthalate film is composed of a polyester having an ethylene terephthalate unit content of at least 90% by mole and a melting point of at least 250°C.
Claim 5
Dependent Claim
22 words
A metal-deposited laminated film according to any preceding claim, wherein the deposited metal layer has a thickness of 0.03 to 0.3 µm.
Claim 6
Dependent Claim
29 words
A metal-deposited laminated film according to any preceding claim, wherein the propylene copolymer film has a thickness of 5 to 30 µm and a birefringence of 0 to 0.008.
Claim 7
Dependent Claim
59 words
A metal-deposited laminated film according to any preceding claim , wherein the propylene copolymer film is made of a copolymer composed of 80 to 97% by mole of propylene units and 3 to 20% by mole of units derived from at least one olefin having 2,4,5,6,7 or 8 carbon atoms and has a melting point of 90 to 140°C.
Claim 8
Dependent Claim
18 words
A metal-deposited laminated film according to any preceding claim, wherein the adhesive force is 0.2 to 0.8 g/cm.
Claim 9
Dependent Claim
19 words
A metal-deposited laminated film according to any preceding claim, which has a deposited metal/polyethylene terephthalate/propylene copolymer three layer structure.
Claim 10
Dependent Claim
27 words
A metal-deposited laminated film according to any one of claims 1 to 7, which has a deposited metal/ polyethylene terephthalate/propylene copolymer/ polyethylene terephthalate/deposited metal five layer structure.
Claim 11
Independent Claim
55 words
A method for making capacitor elements, characterized by the steps of : cutting, in a predetermined width, a metal-deposited laminated film according to any preceding claim, and forming a capacitor element by separating the metal-deposited polyethylene terephthalate film from the cut laminated film and successively forming the separated metal-deposited polyethylene terephthalate film into a coil.
Claim 12
Dependent Claim
23 words
A method according to claim 10 wherein the separated metal-deposited polyethylene terephthalate is wound over a flat former to form a flattened coil.
References Cited (Backward Citations)
No citation records indexed.
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