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Patent US5032546A successfully refreshed from Google Patents.
US5032546A
Expired / Lapsed
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Ion exchanged organic-inorganic composites
Assignee: Cornell Research Foundation Inc
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Filing: 1990-02-28
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Granted: 1991-07-16
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Expires: 2010-02-28
Abstract
Abstract This invention is directed to the production of organic-inorganic composite bodies demonstrating electrical insulating characteristics consisting essentially of lithium and/or sodium water-swelling crystals selected from the group of fluorhectorite, hydroxyl hectorite, boron fluorphlogopite, hydroxyl boron phlogopite, and solid solutions among those and between those and other structurally-compatible species selected from the group of talc, fluortalc, polylithionite, fluorpolylithionite, phlogopite, and fluorphlogopite, wherein the Li30 and/or Na+ ions from the interlayer of said lithium and/or sodium water-swelling mica crystals have been exchanged with an organic polycation, the galleries of said crystals containing an organic polymer exhibiting very low permittivity resulting from the transformation of the organic polycation. The preferred organic polycation is a poly(p-xylene- alpha -dialkylsulfonium) halide and the preferred organic polymer exhibiting very low permittivity is poly(p-phenylene vinylene).
Inventors
- 👤 Emmanuel P. Giannelis
- 👤 Vivek Mehrota
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:11
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/0081; C08; C08F; C08F292/00; C08K; C08K3/00; C08K3/16; C08K3/34; C08K3/346; C08K3/38; H; H01; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/124; H01B1/128; H01B3/00; H01B3/002; H01B3/006; H01B3/02; H01B3/04; C01; C01P; C01P2002/00; C01P2002/20; C01P2002/50; C01P2002/70; C01P2002/72; C01P2006/00; C01P2006/32; C01P2006/40; C01P2006/80; C01P2006/90
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
98 words
An electrically insulating organicinorganic composite body consisting essentially of lithium and/or sodium water-swelling mica crystals selected from the group of fluorhectorite, hydroxyl hectorite, boron fluorphlogopite, hydroxyl boron phlogopite, and solid solutions among those and between those and other structurally-compatible species selected from the group of talc, fluortalc, polylithionite, fluorpolylithionite, phlogopite, and fluorphlogopite, wherein the Li + and/or Na + ions from the interlayer of said lithium and/or sodium water-swelling mica crystals have been exchanged with an organic polycation, the galleries of said crystals containing a very low permittivity organic polymer resulting from the transformation of said organic polycation.
Claim 2
Dependent Claim
98 words
An electrically insulating organicinorganic composite body consisting essentially of lithium and/or sodium water-swelling mica crystals selected from the group of fluorhectorite, hydroxyl hectorite, boron fluorphlogopite, hydroxyl boron phlogopite, and solid solutions among those and between those and other structurally-compatible species selected from the group of talc, fluortalc, polylithionite, fluorpolylithionite, phlogopite, and fluorphlogopite, wherein the Li + and/or Na + ions from the interlayer of said lithium and/or sodium water-swelling mica crystals have been exchanged with an organic polycation, the galleries of said crystals containing a very low permittivity organic polymer resulting from the transformation of said organic polycation.
Claim 3
Dependent Claim
52 words
A composite body according to claim 1 wherein said lithium and/or sodium water-swelling mica consists essentially, in weight percent, of ______________________________________
Li.sub.2 O 0-12 Al.sub.2 O.sub.3
0-10
Na.sub.2 O 0-10 SiO.sub.2
35-70
Li.sub.2 O + Na.sub.2 O
0.5-14 F 0-15
MgO 10-38 OH 0-15
B.sub.2 O.sub.3
0-30 F + OH 4-15.
______________________________________
Claim 4
Dependent Claim
46 words
A composite body according to claim 2 wherein said lithium and/or sodium water-swelling mica consists essentially, in weight percent, of ______________________________________
Li.sub.2 O 0.5-12 B.sub.2 O.sub.3
0-15
Na.sub.2 O 0-10 Al.sub.2 O.sub.3
0-10
Li.sub.2 O + Na.sub.2 O
0.5-14 SiO.sub.2 35-70
MgO 14-38 F 5-15.
______________________________________
Claim 5
Dependent Claim
15 words
A composite body according to claim 3 wherein said water-swelling mica is a lithium fluorhectorite.
Claim 6
Dependent Claim
16 words
A composite body according to claim 1 wherein said organic polycation consists of a poly(p-xylene-α-dialkylsulfonium) halide.
Claim 7
Dependent Claim
15 words
A composite body according to claim 5 wherein said organic polycation consists of poly(p-xylene-α-dimethylsulfonium) chloride.
Claim 8
Dependent Claim
19 words
A composite body according to claim 5 wherein said organic polymer exhibiting very low permittivity consists of poly(p-phenylene vinylene).
Claim 9
Dependent Claim
35 words
A composite body according to claim 1 wherein the galleries of said crystals have an average area per unit layer charge of approximately 28Å 2 and the surfaces thereof are covered with said organic polymer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-07-15 | 1995-01-14 | 1995-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-15 | 1999-01-14 | 1999-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-15 | 2003-01-14 | 2003-07-16 | $7700.00 | Window Closed / Lapsed |