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US4293452A
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Electrically conductive polymeric compositions
Assignee: United States Department of the Navy
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Filing: 1980-01-31
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Granted: 1981-10-06
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Expires: 2000-01-31
Abstract
Abstract Electrically conductive polymeric compositions are obtained by incorporat crown ether complexes of TCNQ salts in a polymer selected from the class consisting of polycarbonates and poly(alkyl alkacrylates). The compositions can be formed into semiconductive films useful in the fabrication of e.g. thermoresistors and electronic devices.
Inventors
- 👤 Robert B. Fox
- 👤 Oh-Kil Kim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:47
CPC Classifications
H; H01; H01C; H01C7/00; H01C7/02; H01C7/028; C; C08; C08K; C08K5/00; C08K5/04; C08K5/06; C08K5/15; C08K5/159; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/121; H01B1/122
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
123 words
An electrically conductive polymeric composition consisting essentially of a polymer selected from the class consisting of polycarbonates and poly(alkyl alkacrylates) wherein the alkyl radicals have from one to 10 carbons and, dispersed therein, an effective amount of a crown ether complex represented by the formula: [(OA).sub.x.M].sup.+m [TCNQ].sub.m [TCNQ].sub.n ° wherein m is 1 or 2, n is 0 or 1, TCNQ is 7,7,8,8,-tetracyano-p-quinodimethane, M is selected from the group consisting of lithium, sodium, potassium, rubidium, lesium calcium, strontium, and barium, and (OA) x is a macrocycle wherein x is an integer from 4 to 10, 0 represents oxygen and A is a bivalent hydrocarbon radical having from 2 to 8 carbon atoms in which the free valences are separated by two carbon atoms.
Claim 2
Dependent Claim
123 words
An electrically conductive polymeric composition consisting essentially of a polymer selected from the class consisting of polycarbonates and poly(alkyl alkacrylates) wherein the alkyl radicals have from one to 10 carbons and, dispersed therein, an effective amount of a crown ether complex represented by the formula: [(OA).sub.x.M].sup.+m [TCNQ].sub.m [TCNQ].sub.n ° wherein m is 1 or 2, n is 0 or 1, TCNQ is 7,7,8,8,-tetracyano-p-quinodimethane, M is selected from the group consisting of lithium, sodium, potassium, rubidium, lesium calcium, strontium, and barium, and (OA) x is a macrocycle wherein x is an integer from 4 to 10, 0 represents oxygen and A is a bivalent hydrocarbon radical having from 2 to 8 carbon atoms in which the free valences are separated by two carbon atoms.
Claim 3
Dependent Claim
22 words
The composition of claim 1 wherein M is selected from the class consisting of lithium, potassium, and sodium and m equals 1.
Claim 4
Dependent Claim
21 words
The composition of claim 2 wherein the alkyl radicals of said polyl (alkyl alkacrylate) have from 1 to 4 carbon atoms.
Claim 5
Dependent Claim
12 words
The composition of claim 2 wherein said poly(alkyl alkacrylate) is poly(methyl methacrylate).
Claim 6
Dependent Claim
27 words
The composition of claim 4 wherein x represents an integer from 4 to 8 and A represents a bivalent hydrocarbon having from 2 to 6 carbon atoms.
Claim 7
Dependent Claim
11 words
The composition of claim 4 wherein A represents the ethylene radical.
Claim 8
Dependent Claim
9 words
The composition of claim 2 wherein n equals 0.
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) | 1984-10-05 | 1985-04-06 | 1985-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-05 | 1989-04-06 | 1989-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-05 | 1993-04-06 | 1993-10-06 | $7700.00 | Window Closed / Lapsed |