Patent US3935334A successfully refreshed from Google Patents.
US3935334A
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Process for preparing a metallized resin film for condenser element
Assignee: OIKE and COMPANY Ltd
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Filing: 1974-06-21
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Granted: 1976-01-27
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Expires: 1994-06-21
Abstract
Abstract A process for providing a margin in a metallized resin film for a condenser element which is characterized by providing on a dielectric resinous layer a water-soluble coating layer having a pattern corresponding to a margin pattern, providing a metal deposition layer on the resinous layer including a coated part and a non-coated part and removing the water-soluble coating layer and the metal deposition layer thereon by washing with water. According to the process, a metallized resin film having an arbitrary margin pattern and a superior electrical property can be readily obtained, with completely eliminating any complexity of the procedure and disadvantage in conventional processes for providing a margin.
Inventors
- 👤 Hiroshi Narui
- 👤 Terumi Shinohara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:29
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/04; C23C14/042; H; H01; H01G; H01G13/00; H01G13/06
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
136 words
In a process for producing a metallized resin film for a condenser element comprising at least one di-electric resinous layer and at least one metal deposition layer, the improvement which comprises forming on said resinous layer a margin wherein the metal deposition layer is not present by the steps comprising 1. providing a water-soluble coating layer by applying a water-soluble paint to at least one side of the dielectric resinous layer in the portion of the resinous layer corresponding to the pattern of margin, 2. providing a metal deposition layer on the dielectric resinous layer partially coated with the water-soluble coating layer, said metal deposition layer being applied by means of vacuum metallizing procedures, and 3. removing the water-soluble coating layer and the metal deposition layer thereon by dissolving away the water-soluble coating layer with water.
Claim 2
Dependent Claim
136 words
In a process for producing a metallized resin film for a condenser element comprising at least one di-electric resinous layer and at least one metal deposition layer, the improvement which comprises forming on said resinous layer a margin wherein the metal deposition layer is not present by the steps comprising 1. providing a water-soluble coating layer by applying a water-soluble paint to at least one side of the dielectric resinous layer in the portion of the resinous layer corresponding to the pattern of margin, 2. providing a metal deposition layer on the dielectric resinous layer partially coated with the water-soluble coating layer, said metal deposition layer being applied by means of vacuum metallizing procedures, and 3. removing the water-soluble coating layer and the metal deposition layer thereon by dissolving away the water-soluble coating layer with water.
Claim 3
Dependent Claim
16 words
The process of claim 1, wherein the dielectric resinous layer is a self-supporting dielectric resin film.
Claim 4
Dependent Claim
18 words
The process of claim 2, wherein the dielectric resin film has a thickness of 1.5 to 25 μ.
Claim 5
Dependent Claim
37 words
The process of claim 2, wherein the dielectric resin film is a member selected from the group consisting of the films made of polyethylene terephthalate, polyethylene naphthalate, polypropylene, polycarbonate, polystyrene, polytetrafluoroethylene, polyamide, polyvinyl chloride and cellulose acetate.
Claim 6
Dependent Claim
36 words
The process of claim 1, wherein the dielectric resinous layer is a dielectric resinous coating provided on a self-supporting base film by a coating method, said base film is finally removed from the metallized resin film.
Claim 7
Dependent Claim
18 words
The process of claim 5, wherein the dielectric resinous coating has a thickness of 0.5 to 4 μ.
Claim 8
Dependent Claim
56 words
The process of claim 5, wherein the dielectric resinous coating is made of at least one member selected from the group consisting of ethyl cellulose, cellulose acetate, cellulose acetate butyrate, polycarbonate, polystyrene, saturated polyester resin, acrylic resin, melamine resin, urea reain, phenolic resin, unsaturated polyester resin, thermosetting-type acrylic resin, alkyd resin, epoxy resin and urethane resin.
Claim 9
Dependent Claim
57 words
The process of claim 1, wherein the water-soluble paint is an aqueous solution of at least one member selected from the group consisting of casein, starch, glue, gelatin, polyvinyl alcohol, polyacrylamide, methyl cellulose, hydroxyethyl cellulose, hydroxymethyl cellulose, polyvinyl pyrrolidone, polyvinyl methyl ether, carboxymethyl cellulose, copolymer of methyl vinyl ether and maleic anhydride, polyacrylic ester and polymethacrylic ester.
Claim 10
Dependent Claim
25 words
The process of claim 1, wherein the water-soluble coating layer is provided on the dielectric resinous layer into a thickness of 0.5 to 3 μ.
Claim 11
Dependent Claim
28 words
The process of claim 1, wherein the metal deposition layer is made of a metal selected from the group consisting of aluminum, zinc, copper, silver, gold and tin.
Claim 12
Dependent Claim
22 words
The process of claim 1, wherein the margin consists of a zonal margin in the longitudinal direction of the metallized resin film.
Claim 13
Dependent Claim
42 words
The process of claim 1, wherein the margin consists of a zonal margin in the longitudinal direction of the metallized resin film, in which discontinuous metal deposition parts are aligned in the longitudinal direction of the zonal margin with a constant separation.
Claim 14
Dependent Claim
28 words
The process of claim 12, wherein the separation between adjacent discontinuous metal deposition parts corresponds to the length of a metallized resin film per a piece of condenser.
Claim 15
Dependent Claim
47 words
The process of claim 1, wherein the margin consists of a zonal margin in the longitudinal direction of the metallized resin film and discontinuous margins which are aligned in a continuous metal deposition part in the longitudinal direction of the metallized resin film with a constant separation.
Claim 16
Dependent Claim
26 words
The process of claim 14, wherein the separation between ajacent discontinuous margins corresponds to the length of a metallized resin film per a piece of condenser.
Claim 17
Dependent Claim
41 words
The process of claim 1, wherein the margin consists of a zonal margin in the longitudinal direction of the metallized resin film and zonal margins in the transverse direction of the metallized resin film, which are provided with a constant separation.
Claim 18
Dependent Claim
51 words
The process of claim 1, wherein the margin consists of a zonal margin in the longitudinal direction of the metallized resin film, zonal margins in the transverse direction of the metallized resin film and discontinuous metal deposition parts in the zonal margin or discontinuous margins in the continuous metal deposition part.
Claim 19
Dependent Claim
9 words
A metallized resin film obtained according to claim 1.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-01-26 | 1979-07-28 | 1980-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-26 | 1983-07-28 | 1984-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-26 | 1987-07-28 | 1988-01-27 | $7700.00 | Window Closed / Lapsed |