Patent US5581868A successfully refreshed from Google Patents.
Patent US3984598A successfully refreshed from Google Patents.
US3984598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal-clad laminates
Assignee: Universal Oil Products Co
•
Filing: 1974-02-08
•
Granted: 1976-10-05
•
Expires: 1994-02-08
Abstract
Abstract Metal-clad laminates in which the metal coating of the laminate is only from about 1 micron to about 20 microns in thickness are prepared by depositing a copper coating on a substrate which has been treated with a release agent, treating the upper side of the metal layer to improve the adhesive properties of the metal, thereafter bonding the metal coating to a laminate and removing the substrate to thus prepare the desired metal-clad laminate.
Inventors
- 👤 Richard G. Sarazin
- 👤 Alan D. Wilks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:20
CPC Classifications
C; C25; C25D; C25D1/00; C25D1/04; B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; B44; B44C; B44C1/00; B44C1/10; B44C1/14; H; H05; H05K; H05K3/00; H05K3/02; H05K3/022; H05K3/025; H05K2201/00; H05K2201/01; H05K2201/0137; H05K2201/0162; H05K2201/03; H05K2201/0332; H05K2201/0335; H05K2201/0344; H05K2203/00; H05K2203/01; H05K2203/0147; H05K2203/0152; H05K2203/0156; H05K2203/07; H05K2203/0703; H05K2203/0726; H05K3/10; H05K3/18; H05K3/181; H05K3/38; H05K3/389; Y; Y10; Y10S; Y10S428/00; Y10S428/901; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24917; Y10T428/24926; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/31504; Y10T428/31511; Y10T428/31529; Y10T428/31678
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
86 words
A method for preparing a metal-clad laminate which comprises applying a release agent to a surface of a substrate, plating said surface with a conductive metal to a thickness of from 1 to about 20 microns, thereafter subjecting the resultant conductive metal layer to a high current density to roughen the exposed surface of the metal, then oxidizing said surface, thereafter contacting said surface with a bonding agent, bonding the thus treated conductive metal to a laminate, removing said substrate, and recovering the resultant metal-clad laminate.
Claim 2
Independent Claim
86 words
A method for preparing a metal-clad laminate which comprises applying a release agent to a surface of a substrate, plating said surface with a conductive metal to a thickness of from 1 to about 20 microns, thereafter subjecting the resultant conductive metal layer to a high current density to roughen the exposed surface of the metal, then oxidizing said surface, thereafter contacting said surface with a bonding agent, bonding the thus treated conductive metal to a laminate, removing said substrate, and recovering the resultant metal-clad laminate.
Claim 3
Dependent Claim
24 words
The method as set forth in claim 1 in which said substrate is metallic in nature and said conductive metal is electrolytically deposited thereon.
Claim 4
Dependent Claim
24 words
The method as set forth in claim 1 in which said substrate is non-metallic in nature and said conductive metal is electrolessly deposited thereon.
Claim 5
Dependent Claim
29 words
The method as set forth in claim 1 in which said bonding of said conductive metal to said laminate is effected by applying heat and pressure to said laminate.
Claim 6
Dependent Claim
15 words
The method as set forth in claim 1 in which said conductive metal is copper.
Claim 7
Dependent Claim
15 words
The method as set forth in claim 1 in which said conductive metal is gold.
Claim 8
Dependent Claim
15 words
The method as set forth in claim 1 in which said conductive metal is nickel.
Claim 9
Dependent Claim
15 words
The method as set forth in claim 1 in which said conductive metal is tin.
Claim 10
Dependent Claim
21 words
The method as set forth in claim 1 in which said conductive metal is bonded to one side of said laminate.
Claim 11
Dependent Claim
21 words
The method as set forth in claim 1 in which said conductive metal is bonded to both sides of said laminate.
Claim 12
Dependent Claim
17 words
The method as set forth in claim 1 in which said laminate is a glass epoxy resin.
Claim 13
Dependent Claim
17 words
The method as set forth in claim 1 in which said laminate is a glass polyimide resin.
Claim 14
Dependent Claim
17 words
The method as set forth in claim 1 in which said laminate is a paper epoxy resin.
Claim 15
Dependent Claim
17 words
The method as set forth in claim 1 in which said laminate is a paper phenolic resin.
Claim 16
Dependent Claim
10 words
A metal-clad laminate prepared by the method of claim 1.
Claim 17
Dependent Claim
10 words
A metal-clad laminate prepared by the method of claim 5.
Claim 18
Dependent Claim
10 words
A metal-clad laminate prepared by the method of claim 6.
Claim 19
Dependent Claim
10 words
A metal-clad laminate prepared by the method of claim 7.
Claim 20
Dependent Claim
10 words
A metal-clad laminate prepared by the method of claim 8.
Claim 21
Dependent Claim
10 words
A metal-clad laminate prepared by the method of claim 11.
Claim 22
Dependent Claim
10 words
A metal-clad laminate prepared by the method of claim 12.
Claim 23
Dependent Claim
10 words
A metal-clad laminate prepared by the method of claim 13.
Claim 24
Dependent Claim
10 words
A metal-clad laminate prepared by the method of claim 14.
Claim 25
Dependent Claim
19 words
A metal-clad laminate prepared by the method of claim 1 and in which said laminate comprises a thermosetting resin.
References Cited (Backward Citations)
US2666008A
Cited
US2874085A
Cited
US3088847A
Cited
US3220897A
Cited
US3235395A
Cited
US3324014A
Cited
US3340121A
Cited
US3393117A
Cited
US3434889A
Cited
US3532587A
Cited
US3506507A
Cited
US3644166A
Cited
US3741858A
Cited
US3753850A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-05 | 1980-04-05 | 1980-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-05 | 1984-04-05 | 1984-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-05 | 1988-04-05 | 1988-10-05 | $7700.00 | Window Closed / Lapsed |