US5949029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conductive elastomers and methods for fabricating the same
Assignee: ABB Installation Products International LLC
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Filing: 1996-10-28
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Granted: 1999-09-07
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Expires: 2016-10-28
Abstract
Abstract Several different types of electrically conductive elastomers are disclosed along with the methods for their fabrication. In one particular embodiment, a layered composition is disclosed which comprises a substrate, a first layer, and a second layer. The substrate is formed of a non-conductive elastic material and it has an outer surface. The first layer, which is formed with a non-conductive elastic material, is grafted to the outer surface of the substrate. The second layer, which is formed with a non-conductive elastic material having a quantity of conductive flakes interspersed therein, is grafted to an outer surface of the first layer. The second layer can further be formed with a quantity of rounded or jagged conductive particles interspersed in the non-conductive elastic material such that some of the conductive particles are present along an outer surface of the second layer. Alternatively, a quantity of rounded or jagged conductive particles may be imbedded in an outer surface of the second layer.
Inventors
- 👤 David R. Crotzer
- 👤 Jonathan W. Goodwin
- 👤 Arthur G. Michaud
- 👤 David A. DeDonato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:03
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/02; H01R13/22; H01R13/24; H01R13/2407; H01R13/2414; B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; H01H; H01H1/00; H01H1/02; H01H1/021; H01H1/029; H01H13/00; H01H13/70; H01H13/702; H01R12/00; H01R12/50; H01R12/51; H01R12/52; H01R13/03; H01R13/035; H05; H05K; H05K1/00; H05K1/02; H05K1/09; H05K1/092; H05K1/095; H05K3/00; H05K3/10; H05K3/102; H05K3/30; H05K3/32; H05K3/325; H05K3/38; H05K3/386; H05K9/00; H05K9/0007; H05K9/002; H05K9/0039; H10; H10W; H10W70/00; H10W70/60; H10W70/62; H10W70/63; H10W70/635; H01H2209/00; H01H2209/014; H01H2239/00; H01H2239/034; H01R12/70; H01R12/71; H01R12/712; H01R12/714; H01R13/648; H01R13/658; H01R13/6598; H01R13/6599; H05K2201/00; H05K2201/01; H05K2201/0104; H05K2201/0133; H05K2201/02; H05K2201/0203; H05K2201/0242; H05K2201/0245; H05K2201/03; H05K2201/032; H05K2201/0329; H05K2203/00; H05K2203/11; H05K2203/1168; Y; Y10; Y10T; Y10T428/00; Y10T428/25
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
112 words
A layered composition comprising: a substrate, said substrate having an outer surface, said substrate being formed of a non-conductive elastically resilient material; a first layer having a first surface and a second surface, the first surface thermally grafted directly to at least a portion of said outer surface of said substrate, said first layer being formed of a non-conductive elastically resilient material; and a second layer having a first surface and a second surface, said first surface thermally grafted directly to at least a portion of said second surface of said first layer, said second layer being formed of a non-conductive elastically resilient material having a quantity of conductive flakes interspersed therein.
Claim 2
Dependent Claim
112 words
A layered composition comprising: a substrate, said substrate having an outer surface, said substrate being formed of a non-conductive elastically resilient material; a first layer having a first surface and a second surface, the first surface thermally grafted directly to at least a portion of said outer surface of said substrate, said first layer being formed of a non-conductive elastically resilient material; and a second layer having a first surface and a second surface, said first surface thermally grafted directly to at least a portion of said second surface of said first layer, said second layer being formed of a non-conductive elastically resilient material having a quantity of conductive flakes interspersed therein.
Claim 3
Dependent Claim
26 words
The layered composition as defined in claim 1, wherein the thermal grafting of said first layer and said second layer is performed by a single process.
Claim 4
Dependent Claim
19 words
The layered composition as defined in claim 1, wherein said conductive flakes are formed of a solid conductive material.
Claim 5
Dependent Claim
25 words
The layered composition as defined in claim 1, wherein said conductive flakes are formed of a semiconductive material that is coated with a conductive material.
Claim 6
Dependent Claim
25 words
The layered composition as defined in claim 1, wherein said conductive flakes are formed of a non-conductive material that is coated with a conductive material.
References Cited (Backward Citations)
US3100933A
Cited
US3203083A
Cited
US3482726A
Cited
US3555664A
Cited
US3698931A
Cited
US3632319A
Cited
US3700427A
Cited
US3929800A
Cited
US3880580A
Cited
US3940377A
Cited
US3818415A
Cited
US3921885A
Cited
US4106955A
Cited
US4105811A
Cited
US4157932A
Cited
US4288081A
Cited
US4563725A
Cited
US4731282A
Cited
US4606778A
Cited
US4698275A
Cited
US4688150A
Cited
US4666226A
Cited
US4593961A
Cited
US4894706A
Cited
US4963425A
Cited
US4659872A
Cited
US5175409A
Cited
US4754546A
Cited
US4778950A
Cited
US4939568A
Cited
US4954875A
Cited
US4737112A
Cited
US5065282A
Cited
US4758927A
Cited
US4814040A
Cited
US4804132A
Cited
US4847136A
Cited
US4847146A
Cited
US5083697A
Cited
US5670251A
Cited
US5118299A
Cited
US5173766A
Cited
US5148266A
Cited
US5092774A
Cited
US5106308A
Cited
US5536568A
Cited
US5288238A
Cited
US5237203A
Cited
US5220726A
Cited
US5175491A
Cited
US5270571A
Cited
US5281852A
Cited
US5371327A
Cited
US5306558A
Cited
US5340640A
Cited
US5273440A
Cited
US5267867A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-09-06 | 2003-03-08 | 2003-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-09-06 | 2007-03-08 | 2007-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-09-06 | 2011-03-08 | 2011-09-07 | $7700.00 | Window Closed / Lapsed |