US3932250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for manufacturing metal foil- or plastic film-overlaid laminate
Assignee: Mitsubishi Gas Chemical Co Inc
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Filing: 1974-05-30
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Granted: 1976-01-13
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Expires: 1994-05-30
Abstract
Abstract A method for manufacturing a metal foil- or plastic film-overlaid laminate which comprises completely covering a cleaned press plate with a cleaned metal foil, a cleaned plastic film or both of them in such a manner that the pressing surface of the press plate comes in intimate contact with the face side of said metal foil or plastic film, partially or completely sealing the resulting covering along at least two edges of the press plate, two of the edges being opposite to each other, applying the covered press plate to one or both sides of a laminating base, subjecting the resulting assembly to a laminating apparatus with heating under pressure, taking the assembly out of the laminating apparatus, and thereafter opening the covering to remove the press plate.
Inventors
- 👤 Shunichi Sato
- 👤 Masaharu Kurata
- 👤 Toshiyuki Takao
- 👤 Sadao Masaki
- 👤 Toru Notomi
- 👤 Morio Gaku
- 👤 Takehiko Moriya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:16
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/14; B29; B29C; B29C63/00; B32B15/04; B32B15/08; B32B15/20; B32B23/00; B32B23/04; B32B23/08; B32B23/10; B32B27/00; B32B27/06; B32B27/08; B32B27/12; B32B27/30; B32B27/304; B32B27/32; B32B27/322; B32B27/36; B32B27/365; B32B3/00; B32B3/02; B32B3/04; B32B7/00; B32B7/04; B32B7/12; H; H05; H05K; H05K3/00; H05K3/02; H05K3/022; B32B2260/00; B32B2260/02; B32B2260/021; B32B2260/04; B32B2260/046; B32B2262/00; B32B2262/10; B32B2262/101; H05K2203/00; H05K2203/06; H05K2203/068; Y; Y10; Y10S; Y10S428/00; Y10S428/902; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028; Y10T156/103; Y10T156/11; Y10T156/1153
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
129 words
A method for manufacturing a metal foil- or plastic film-overlaid laminate, which comprises completly covering a cleaned press plate with at least one member selected from the group consisting of cleaned metal foils and cleaned plastic films, in such a manner that the pressing surface of the press plate comes in intimate contact with the face side of said member, partially or completely sealing the resulting covering along at least two edges of the press plate, two of the edges being opposite to each other, applying the covered press plate to one or both sides of a laminating base, subjecting the resulting assembly to a laminating apparatus with heating under pressure, taking the assembly out of the laminating apparatus, and thereafter opening the covering to remove the press plate.
Claim 2
Independent Claim
129 words
A method for manufacturing a metal foil- or plastic film-overlaid laminate, which comprises completly covering a cleaned press plate with at least one member selected from the group consisting of cleaned metal foils and cleaned plastic films, in such a manner that the pressing surface of the press plate comes in intimate contact with the face side of said member, partially or completely sealing the resulting covering along at least two edges of the press plate, two of the edges being opposite to each other, applying the covered press plate to one or both sides of a laminating base, subjecting the resulting assembly to a laminating apparatus with heating under pressure, taking the assembly out of the laminating apparatus, and thereafter opening the covering to remove the press plate.
Claim 3
Dependent Claim
18 words
A method according to claim 1, wherein the covering is sealed with an adhesive, or an adhesive tape.
Claim 4
Dependent Claim
17 words
A method according to claim 1, wherein the covering is sealed by bending, caulking, sewing or welding.
Claim 5
Dependent Claim
36 words
A method according to claim 1, wherein the metal foils are foils of copper, aluminum, nickel, zinc, and alloys of at least two of these metals, copper-aluminum clad foil, copper-zinc clad foil and copper-nickel clad foil.
Claim 6
Dependent Claim
32 words
A method according to claim 4, wherein the metal foils each is treated chemically or mechanically on one or both sides or coated with an adhesive or other metals on one side.
Claim 7
Dependent Claim
30 words
A method according to claim 1, wherein the plastic films are films of cellulose acetate, cellulose acetate butyrate, polycarbonate, saturated polyester, polytetrafluoroethylene, polyethylene terephthalate, polyvinylidene fluoride, and fluorinated ethylenepropylene copolymer.
Claim 8
Dependent Claim
49 words
A method according to claim 1, wherein the laminating base is a thermosetting resin-impregnated glass fabric, glass mat, glass paper, glass-cellulose paper, cellulosic paper, or synthetic or natural fiber fabric or a sheet of a mixture of a thermosetting resin with glass fiber, an inorganic filler or both thereof.
Claim 9
Dependent Claim
14 words
A method according to claim 1, wherein the laminating base is a thermoplastic sheet.
Claim 10
Dependent Claim
29 words
A method according to claim 7, wherein the thermosetting resin is a phenolic resin, melamine resin, epoxy resin, diallyl phthalate resin, polyimide, cyanate resin, unsaturated polyester or silicone resin.
Claim 11
Dependent Claim
16 words
A method according to claim 7, wherein the laminating base is an epoxy resin-impregnated glass fabric.
Claim 12
Dependent Claim
22 words
A method according to claim 8, wherein the thermoplastic sheet is a sheet of polyethylene terephthalate, polyamide-imide, polyimide, polycarbonate, or polyphenylene oxide.
Claim 13
Dependent Claim
14 words
A method according to claim 8, wherein the thermoplastic sheet is a polycarbonate sheet.
Claim 14
Dependent Claim
16 words
A method according to claim 1, wherein the press plate is covered with a copper foil.
Claim 15
Dependent Claim
17 words
A method according to claim 1, wherein the press plate is covered with a cellulose acetate film.
Claim 16
Dependent Claim
20 words
A method according to claim 1, wherein the press plate is covered with a copper foil and an aluminum foil
Claim 17
Dependent Claim
21 words
A method according to claim 1, wherein the press plate is covered with a copper foil and a cellulose acetate film.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-01-12 | 1979-07-14 | 1980-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-12 | 1983-07-14 | 1984-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-12 | 1987-07-14 | 1988-01-13 | $7700.00 | Window Closed / Lapsed |