US3762946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Small particle loaded electrically conductive adhesive tape
Assignee: 3M Co
•
Filing: 1971-10-21
•
Granted: 1973-10-02
•
Expires: 1991-10-21
Abstract
Abstract Electrically conductive adhesive tapes in which the layer of adhesive is made conductive by the inclusion of small, complex metal particles having a low apparent density.
Inventors
- 👤 R Stow
- 👤 G Groff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:11
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/22; H05K3/24; H05K3/241; H05K3/242; C; C09; C09J; C09J7/00; C09J7/20; C09J7/28; H05K2203/00; H05K2203/01; H05K2203/0191; H05K3/30; H05K3/32; H05K3/321; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/936; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12049; Y10T428/12063; Y10T428/12104; Y10T428/12111; Y10T428/12493; Y10T428/12535; Y10T428/12556; Y10T428/12569; Y10T428/12986; Y10T428/28; Y10T428/2804; Y10T428/2848; Y10T428/2852; Y10T428/2857; Y10T428/31504; Y10T428/31678; Y10T428/31681
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
23 words
A tape of claim 1 in which the particles have an apparent density of less than about 7 percent of their true density.
Claim 2
Dependent Claim
25 words
A tape of claim 1 in which the ratio of apparent volume of particles to volume of adhesive material is at least 2 to 1.
Claim 3
Dependent Claim
26 words
A tape of claim 1 in which an electrically insulative organic polymeric film is carried on the side of the foil opposite from the adhesive layer.
Claim 4
Dependent Claim
12 words
A tape of claim 1 in which the particles comprise nickel particles.
Claim 5
Dependent Claim
23 words
A tape of claim 1 in which the particles comprise carbonyl nickel particles having an apparent density less than about 0.6 gram/cubic centimeter.
Claim 6
Dependent Claim
15 words
A tape of claim 1 in which the adhesive material comprises a pressure-sensitive adhesive material.
Claim 7
Dependent Claim
110 words
An electrically conductive adhesive tape capable of reliably contacting small electrodes comprising a metal foil backing, an electrically insulative organic polymeric film united to one side of the backing, and a layer between about 0.5 and 1.5 mils thick of an electrically conductive adhesive united in electrically conductive relation to the other side of the backing, said adhesive comprising a chemically compatible mixture of pressure-sensitive adhesive material and nickel particles having an apparent density of less than about 0.6 gram/cubic centimeter dispersed in the adhesive material in an amount providing a ratio of apparent volume of metal particles to volume of adhesive material of at least about 2 to 1.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |