Patent US4587161A successfully refreshed from Google Patents.
US4587161A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copper-clad polyester-epoxy-glass fiber laminates using zinc-coated copper
Assignee: Congress Financial Corp Southwest
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Filing: 1983-12-13
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Granted: 1986-05-06
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Expires: 2003-12-13
Abstract
Abstract A metal foil laminate including at least one sheet of metal foil directly bonded to one face of a sheet of glass fiber reinforced polyester and epoxy resin, and a continuous process for preparing such laminates.
Inventors
- 👤 David Barrell
- 👤 Donald E. Kennedy
- 👤 Donald C. Rollen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:27
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; B29; B29C; B29C70/00; B29C70/04; B29C70/28; B29C70/40; B29C70/50; H; H05; H05K; H05K3/00; H05K3/02; H05K3/022; B32B2311/00; B32B2311/12; B32B2315/00; B32B2315/08; B32B2315/085; B32B2367/00; H05K1/00; H05K1/02; H05K1/03; H05K1/0313; H05K1/032; H05K1/0326; H05K1/0353; H05K1/0366; H05K2201/00; H05K2201/03; H05K2201/0332; H05K2201/0335; H05K2201/0355; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249924; Y10T428/24994; Y10T428/24995; Y10T428/249951; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/31518; Y10T428/31529; Y10T428/31551; Y10T428/31616; Y10T428/31678; Y10T428/31681; Y10T428/31786
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
57 words
A metal foil laminate comprising a sheet of glass fiber reinforced resin mixture, said resin mixture comprising from about 80% to about 90% by weight polyester resin and from about 10% to about 20% by weight epoxy resin, and having opposite faces and a sheet of electrogalvanized zinc-coated metal foil directly bonded to one of said faces.
Claim 2
Dependent Claim
57 words
A metal foil laminate comprising a sheet of glass fiber reinforced resin mixture, said resin mixture comprising from about 80% to about 90% by weight polyester resin and from about 10% to about 20% by weight epoxy resin, and having opposite faces and a sheet of electrogalvanized zinc-coated metal foil directly bonded to one of said faces.
Claim 3
Dependent Claim
38 words
A metal foil laminate as set forth in claim 1, further comprising a second sheet of electrogalvanized zinc-coated metal foil directly bonded to the opposite face of said sheet of glass fiber reinforced polyester and epoxy resin mixture.
Claim 4
Dependent Claim
27 words
A metal foil laminate as set forth in claim 1 or claim 2, wherein said sheet of glass fiber reinforced polyster and epoxy resin mixture is rigid.
Claim 5
Dependent Claim
24 words
A metal foil laminate as set forth in claim 1, wherein said sheet of glass fiber reinforced polyester and epoxy resin mixture is flexible.
Claim 6
Dependent Claim
21 words
A metal foil laminate as set forth in claim 3, wherein said electrogalvanized zinc-coated metal foil is electrogalvanized zinc-coated copper foil.
Claim 7
Dependent Claim
21 words
A metal foil laminate as set forth in claim 4, wherein said electrogalvanized zinc-coated metal foil is electrogalvanized zinc-coated copper foil.
Claim 8
Dependent Claim
25 words
A metal foil laminate as set forth in claim 5, wherein said electrogalvanized zinc-coated copper foil has a weight of one ounce per square ft.
Claim 9
Dependent Claim
25 words
A metal foil laminate as set forth in claim 6, wherein said electrogalvanized zinc-coated copper foil has a weight of one ounce per square ft.
Claim 10
Dependent Claim
24 words
A metal foil laminate as set forth in claim 3, wherein said polyester comprises phthalic anhydride, maleic anhydride, propylene glycol, ethylene glycol, and styrene.
Claim 11
Dependent Claim
21 words
A metal foil laminate as set forth in claim 4, wherein said polyester comprises phthalic anhydride, maleic anhydride, and diethylene glycol.
Claim 12
Dependent Claim
28 words
A metal foil laminate as set forth in claim 3, wherein said polyester and epoxy resin comprises a catalyst selected from the group consisting of peroxides and hydroperoxides.
Claim 13
Dependent Claim
16 words
A metal foil laminate as set forth in claim 11, wherein said catalyst is a hydroperoxide.
Claim 14
Dependent Claim
16 words
A metal foil laminate as set forth in claim 12, wherein said catalyst is cumene hydroperoxide.
Claim 15
Dependent Claim
28 words
A metal foil laminate as set forth in claim 3, wherein the amount of glass fiber present in said sheet is about 10% to about 30% by weight.
Claim 16
Dependent Claim
20 words
A metal foil laminate as set forth in claim 3, wherein said polyester and epoxy resin mixture contains a filler.
Claim 17
Dependent Claim
20 words
A metal foil laminate as set forth in claim 4, wherein said polyester and epoxy resin mixture contains a filler.
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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) | 1989-05-05 | 1989-11-04 | 1990-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-05 | 1993-11-04 | 1994-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-05 | 1997-11-04 | 1998-05-06 | $7700.00 | Window Closed / Lapsed |