Patent US4803022A successfully refreshed from Google Patents.
US4803022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of continuously bonding and curing a zinc-coated metal-clad polyester-epoxy-glass fiber laminate
Assignee: Congress Financial Corp Southwest
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Filing: 1987-05-06
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Granted: 1989-02-07
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Expires: 2007-05-06
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 including post curing partially cured product by radio-frequency electromagnetic energy.
Inventors
- 👤 David Barrell
- 👤 Gerald P. Griffith
- 👤 Donald E. Kennedy
- 👤 Donald C. Rollen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:30
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/12; B; B29; B29C; B29C35/00; B29C35/02; B29C35/12; B29C70/00; B29C70/04; B29C70/06; B29C70/08; B29C70/088; H; H05; H05K; H05K3/00; H05K3/02; H05K3/022; C08J2367/00; C08J2367/06; 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; H05K2203/00; H05K2203/06; H05K2203/068; H05K2203/07; H05K2203/0703; H05K2203/0723; H05K2203/15; H05K2203/1545
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
150 words
A continuous process for preparing a metal foil laminate having at least one sheet of zinc-coated metal foil directly bonded to a face of a sheet of a glass fiber reinforced polyester and epoxy resin, comprising: applying a coating of a polyester and epoxy resin, said resin consisting essentially of from about 80% to about 90% by weight polyester and from about 10% to about 20% by weight epoxy, to a first zinc-coated metal foil; uniformly distributing glass fiber on said polyester and epoxy resin coating; heating said glass fiber containing polyester and epoxy resin coated metal foil to partially gel said resin; applying pressure to said partially gelled glass fiber containing polyester and epoxy resin coated metal foil; and curing said glass fiber containing polyester and epoxy resin using radio-frequency electromagnetic energy to directly bond said glass fiber containing polyester and epoxy resin to said first zinc-coated metal foil.
Claim 2
Dependent Claim
150 words
A continuous process for preparing a metal foil laminate having at least one sheet of zinc-coated metal foil directly bonded to a face of a sheet of a glass fiber reinforced polyester and epoxy resin, comprising: applying a coating of a polyester and epoxy resin, said resin consisting essentially of from about 80% to about 90% by weight polyester and from about 10% to about 20% by weight epoxy, to a first zinc-coated metal foil; uniformly distributing glass fiber on said polyester and epoxy resin coating; heating said glass fiber containing polyester and epoxy resin coated metal foil to partially gel said resin; applying pressure to said partially gelled glass fiber containing polyester and epoxy resin coated metal foil; and curing said glass fiber containing polyester and epoxy resin using radio-frequency electromagnetic energy to directly bond said glass fiber containing polyester and epoxy resin to said first zinc-coated metal foil.
Claim 3
Dependent Claim
75 words
The continuous process for preparing a metal foil laminate as set forth in claim 1, including applying a second zinc-coated metal foil to said partially gelled polyester and epoxy resin coating on said first zinc-coated metal foil immediately after heating said glass fiber containing polyester and epoxy resin coated first metal foil and directly bonding said glass fiber containing polyester and epoxy resin to said first zinc-coated metal foil, and to said zinc-coated metal foil.
Claim 4
Dependent Claim
28 words
The continuous process for preparing a metal foil laminate as set forth in claim 1, wherein said sheet of glass fiber reinforced polyester and epoxy resin is rigid.
Claim 5
Dependent Claim
28 words
The continuous process for preparing a metal foil laminate as set forth in claim 1, wherein said sheet of glass fiber reinforced polyester and epoxy resin is flexible.
Claim 6
Dependent Claim
26 words
The continuous process for preparing a metal foil laminate as set forth in claim 1, wherein said zinc-coated metal foil is an electrogalvanized zinc-coated metal foil.
Claim 7
Dependent Claim
25 words
The continuous process for preparing a metal foil laminate as set forth in claim 1, wherein said zinc-coated metal foil is a zinc-coated copper foil.
Claim 8
Dependent Claim
25 words
The continuous process for preparing a metal foil laminate as set forth in claim 3, wherein said zinc-coated metal foil is a zinc-coated copper foil.
Claim 9
Dependent Claim
24 words
The continuous process for preparing a metal foil laminate as set forth in claim 4, wherein said zinc-coated metal foil is zinc-coated copper foil.
Claim 10
Dependent Claim
32 words
The continuous process for preparing a metal foil laminate as set forth in claim 1, wherein said glass fiber is a glass mat uniformly applied on said polyester and epoxy resin coating.
Claim 11
Dependent Claim
38 words
The continuous process for preparing a metal foil laminate as set forth in claim 1, including distributing about 10% to about 30% by weight, compared to the resin, of glass fiber on said polyester and epoxy resin coating.
Claim 12
Dependent Claim
115 words
A continuous process for preparing a metal foil laminate having at least one sheet of zinc-coated metal foil directly bonded to a face of a sheet of a glass fiber reinforced epoxy resn, comprising: applying a coating consisting essentially of an epoxy resin to a first zinc-coated metal foil; uniformly distributing a glass fiber on said epoxy resin coating; heating said glass fiber containing epoxy resin coated metal foil to partially gel said resin; applying pressure to said partially gelled glass fiber containing epoxy resin coated metal foil; and curing said glass fiber containing epoxy resin using radio-frequency electromagnetic energy to directly bond said glass fiber containing epoxy resin to said first zinc-coated metal foil.
Claim 13
Dependent Claim
115 words
A continuous process for preparing a metal foil laminate having at least one sheet of zinc-coated metal foil directly bonded to a face of a sheet of a glass fiber reinforced epoxy resn, comprising: applying a coating consisting essentially of an epoxy resin to a first zinc-coated metal foil; uniformly distributing a glass fiber on said epoxy resin coating; heating said glass fiber containing epoxy resin coated metal foil to partially gel said resin; applying pressure to said partially gelled glass fiber containing epoxy resin coated metal foil; and curing said glass fiber containing epoxy resin using radio-frequency electromagnetic energy to directly bond said glass fiber containing epoxy resin to said first zinc-coated metal foil.
Claim 14
Dependent Claim
70 words
The continuous process for preparing a metal foil laminate as set forth in claim 11, including applying a second zinc-coated metal foil to said partially gelled epoxy resin coating on said first zinc-coated metal foil immediately after heating said glass fiber containing epoxy resin coated first metal foil and directly bonding said glass fiber containing epoxy resin to said first zinc-coated metal foil and to said second zinc-coated metal foil.
Claim 15
Dependent Claim
101 words
A continuous process for preparing a sheet of a glass fiber reinforced polyether and epoxy resin, comprising: applying a coating of a polyester and epoxy resin, said resin consisting essentially of from about 80% to about 90% by weight polyester and from 10% to about 20% by weight epoxy, to a carrier sheet; uniformly distributing glass fiber on said polyester and epoxy resin coating; heating said glass fiber containing polyester and epoxy resin coated carrier sheet to partially gel said resin; curing said glass fiber containing polyester and epoxy resin sheet using radio frequency electromagnetic energy; and removing said carrier sheet.
Claim 16
Dependent Claim
101 words
A continuous process for preparing a sheet of a glass fiber reinforced polyether and epoxy resin, comprising: applying a coating of a polyester and epoxy resin, said resin consisting essentially of from about 80% to about 90% by weight polyester and from 10% to about 20% by weight epoxy, to a carrier sheet; uniformly distributing glass fiber on said polyester and epoxy resin coating; heating said glass fiber containing polyester and epoxy resin coated carrier sheet to partially gel said resin; curing said glass fiber containing polyester and epoxy resin sheet using radio frequency electromagnetic energy; and removing said carrier sheet.
Claim 17
Dependent Claim
27 words
The continuous process for preparing a sheet of a glass fiber reinforced polyester and epoxy resin as set forth in claim 13, wherein said sheet is rigid.
Claim 18
Dependent Claim
27 words
The continuous process for preparing a sheet of a glass fiber reinforced polyester and epoxy resin as set forth in claim 13, wherein said sheet is flexible.
Claim 19
Dependent Claim
39 words
The continuous process for preparing a sheet of a glass fiber reinforced polyester and epoxy resin as set forth in claim 13, wherein said glass fiber is a glass mat uniformly applied on said polyester and epoxy resin coating.
Claim 20
Dependent Claim
44 words
The continuous process for preparing a sheet of a glass fiber reinforced polyester and epoxy resin as set forth in claim 13, including distributing about 10% to about 30% by weight, compared to the resin, of glass fiber on said polyester and epoxy resin.
Claim 21
Dependent Claim
43 words
The continuous process for preparing a metal foil laminate as set forth in claim 1, wherein said polyester and epoxy resin coating consists of from about 80% to about 90% by weight polyester and from about 10% to about 20% by weight epoxy.
Claim 22
Dependent Claim
23 words
The continuous process for preparing a metal foil laminate as set forth in claim 11, wherein said coating consists of an epoxy resin.
Claim 23
Dependent Claim
45 words
The continuous process for preparing a sheet of glass fiber reinforced polyester and epoxy resin as set forth in claim 13, wherein said coating consists of from about 80% to about 90% by weight polyester and from about 10% to about 20% by weight epoxy.
References Cited (Backward Citations)
US2822575A
Cited
US3149201A
Cited
GB1001018A
Cited
US3466360A
Cited
US3477900A
Cited
US3729294A
Cited
US3674445A
Cited
US3894134A
Cited
US3988408A
Cited
US4093768A
Cited
US4662973A
Cited
US4295907A
Cited
US4410388A
Cited
US4420509A
Cited
US4446173A
Cited
US4587161A
Cited
US4579612A
Cited
JPS606420A
Cited
US4673541A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-02-07 | 1992-08-08 | 1993-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-07 | 1996-08-08 | 1997-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-07 | 2000-08-08 | 2001-02-07 | $7700.00 | Window Closed / Lapsed |