US4212912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesion imparting layer of acrylonitrile-butadiene copolymer on a base material for printed circuits
Assignee: AEG Isolier und Kunststoff GmbH
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Filing: 1977-03-15
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Granted: 1980-07-15
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Expires: 1997-03-15
Abstract
Abstract Adhesion imparting layer applied to an insulating material serving as a base material in the production of printed circuit boards. The adhesion imparting layer consists essentially of an elastomer of acrylonitrile-butadiene copolymer cross-linked with an organic peroxide.
Inventors
- 👤 Johann Wartusch
- 👤 Helmut Fasbender
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:51
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/38; H05K3/386; H05K3/387; B; B32; B32B; B32B25/00; B32B25/04; B32B25/08; B32B25/14; B32B27/00; B32B27/18; B32B27/20; B32B2457/00; B32B2457/08; H05K2201/00; H05K2201/01; H05K2201/0104; H05K2201/0133; H05K2201/03; H05K2201/0332; H05K2201/0335; H05K2201/0355; H05K2203/00; H05K2203/06; H05K2203/066; H05K2203/11; H05K2203/1152; H05K3/10; H05K3/18; H05K3/181; Y; Y10; Y10S; Y10S428/00; Y10S428/901; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24917; Y10T428/31504; Y10T428/31511; Y10T428/31678; Y10T428/31692; Y10T428/31696; Y10T428/31699; Y10T428/31855; Y10T428/31931; Y10T428/31935
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
70 words
In the combination of an insulating material, serving as a base material in the production of a printed circuit board, the base material being comprised of an epoxy resin, or of a phenolic resin, an adhesion imparting layer thereon, and a copper metallic layer on the adhesion imparting layer, the improvement wherein the adhesion imparting layer consists essentially of an elastomer of an acrylonitrile-butadiene copolymer cross-linked with an organic peroxide.
Claim 2
Dependent Claim
70 words
In the combination of an insulating material, serving as a base material in the production of a printed circuit board, the base material being comprised of an epoxy resin, or of a phenolic resin, an adhesion imparting layer thereon, and a copper metallic layer on the adhesion imparting layer, the improvement wherein the adhesion imparting layer consists essentially of an elastomer of an acrylonitrile-butadiene copolymer cross-linked with an organic peroxide.
Claim 3
Dependent Claim
18 words
The combination as defined in claim 1, wherein the organic peroxide is an alkyl, cycloalkyl or aralkyl peroxide.
Claim 4
Dependent Claim
13 words
The combination as defined in claim 2, wherein the organic peroxide is 1,3-bis(t-butylperoxyisopropyl)benzene.
Claim 5
Dependent Claim
16 words
The combination as defined in claim 1, wherein the elastomer of acrylonitrile-butadiene copolymer contains 38% acrylonitrile.
Claim 6
Dependent Claim
14 words
The combination as defined in claim 1, wherein the layer contains a mineral filler.
Claim 7
Dependent Claim
15 words
The combination as defined in claim 1, wherein the insulating material is a pressed laminate.
Claim 8
Dependent Claim
32 words
The combination as defined in claim 1 wherein the base material is comprised of an epoxy resin and the adhesion imparting layer has an adhesion value of 60 to 150 N/25 mm.
References Cited (Backward Citations)
US3737339A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-07-15 | 1984-01-14 | 1984-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-07-15 | 1988-01-14 | 1988-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-07-15 | 1992-01-14 | 1992-07-15 | $7700.00 | Window Closed / Lapsed |