Patent US1188697A successfully refreshed from Google Patents.
Patent US4472474A successfully refreshed from Google Patents.
US4472474A
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US
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Electrically conductive laminate
Assignee: Formica Corp
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Filing: 1983-10-26
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Granted: 1984-09-18
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Expires: 2003-10-26
Abstract
Abstract An electrically conductive laminate which provides a non-instantaneous controlled rate of static dissipation is disclosed, said laminate containing, in at least the overlay or decor layer thereof, a water-soluble, alkali metal salt.
Inventors
- 👤 Gene E. Grosheim
- 👤 Alwyn F. Wiebe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:04
CPC Classifications
B; B32; B32B; B32B29/00; B32B29/06; B32B29/002; B32B29/005; H; H01; H01B; H01B1/00; H01B1/20; H01B1/24; B32B2260/00; B32B2260/02; B32B2260/028; B32B2260/04; B32B2260/046; B32B2262/00; B32B2262/10; B32B2262/106; B32B2264/00; B32B2264/10; B32B2264/107; B32B2264/108; B32B2307/00; B32B2307/20; B32B2307/202; B32B2317/00; B32B2317/12; B32B2317/122; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1043; Y10T156/1044; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24893; Y10T428/24934; Y10T428/30; Y10T428/31504; Y10T428/31942; Y10T428/31949; Y10T428/31964; Y10T428/31967; Y10T428/31971; Y10T428/31989
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
87 words
An electrically conductive laminate comprising, in superimposed relationship, (a) a plurality of thermoset resin impregnated cellulosic core sheets (b) a decorative print sheet impregnated with a noble thermoset resin, and (c) optionally, an overlay sheet impregnated with a noble thermoset resin, wherein at least the overlay or decor layer contains from about 0.5 to about 10%, by weight, based on the total non-resin weight of the laminate, of a water-soluble alkali metal salt and at least one component of the core comprises an electrically conductive fibrous web.
Claim 2
Dependent Claim
87 words
An electrically conductive laminate comprising, in superimposed relationship, (a) a plurality of thermoset resin impregnated cellulosic core sheets (b) a decorative print sheet impregnated with a noble thermoset resin, and (c) optionally, an overlay sheet impregnated with a noble thermoset resin, wherein at least the overlay or decor layer contains from about 0.5 to about 10%, by weight, based on the total non-resin weight of the laminate, of a water-soluble alkali metal salt and at least one component of the core comprises an electrically conductive fibrous web.
Claim 3
Dependent Claim
13 words
A laminate in accordance with claim 1 wherein said salt is sodium formate.
Claim 4
Dependent Claim
26 words
A laminate in accordance with claim 1 wherein said fibrous web is positioned as the topmost sheet of the laminate core and below said decor sheet.
Claim 5
Dependent Claim
20 words
A laminate in accordance with claim 1 wherein said fibrous web comprises a sheet of paper laden with carbon particles.
Claim 6
Dependent Claim
17 words
A laminate in accordance with claim 1 wherein said fibrous web comprises a sheet containing carbon fibers.
Claim 7
Dependent Claim
18 words
A laminate in accordance with claim 1 wherein a plurality of conductive webs are positioned in said core.
Claim 8
Dependent Claim
16 words
A laminate in accordance with claim 1 wherein said salt is contained in said overlay sheet.
Claim 9
Dependent Claim
17 words
A laminate in accordance with claim 1 wherein said salt is contained in said decorative print sheet.
Claim 10
Dependent Claim
109 words
A method for the preparation of the laminate of claim 1 which comprises heat and pressure consolidating a laminate assembly comprising, in superimposed relationship, (a) a plurality of thermosetting resin impregnated cellulosic core sheets at least one of which comprises an electrically conductive fibrous web, (b) a decorative print sheet impregnated with a noble thermosetting resin, (c) an optional overlay sheet impregnated with a noble thermosetting resin and (d) a press plate, wherein at least one of said decorative print sheet or overlay sheet contains from about 0.5 to about 10.0%, by weight, based on the total weight of non-resin in said assembly, of a water-soluble alkali metal salt.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-09-18 | 1988-03-19 | 1988-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-18 | 1992-03-19 | 1992-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-18 | 1996-03-19 | 1996-09-18 | $7700.00 | Window Closed / Lapsed |