Patent US4657694A successfully refreshed from Google Patents.
US4657694A
Expired / Lapsed
US
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Electrically conductive liquid crystalline substance and polymer
Assignee: Resonac Holdings Corp
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Filing: 1983-09-29
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Granted: 1987-04-14
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Expires: 2003-09-29
Abstract
Abstract An electrically conductive liquid crystalline substance represented by the general formula L-S 1 -C T or L-C T , wherein L is a residue of a liquid crystalline substance, S 1 is an atom or atomic grouping which becomes a spacer and C T is a charge-transfer complex, is disclosed. An electrically conductive liquid crystalline polymer having an electrically conductive liquid crystalline substance portion in its side chain is also provided. These electrically conductive liquid crystalline materials are useful in the conventional applications of liquid crystals and in other applications which utilize their electrical conductivity.
Inventors
- 👤 Alan J. Heeger
- 👤 Haruo Yoshida
- 👤 Kazumi Naito
- 👤 Yukio Kobayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:45
CPC Classifications
C; C09; C09K; C09K19/00; C09K19/52; C09K19/58; C09K19/582; C09K19/04; C09K19/38; C09K19/3833; C09K19/3842; C09K19/3852; C09K19/3861; Y; Y10; Y10S; Y10S505/00; Y10S505/80; Y10S505/801; Y10S505/808
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
109 words
An electrically conductive liquid crystalline polymer having in the side chain of the polymer a moiety derived from an electrically conductive liquid crystalline compound represented by the following general formula (I) or (II) L-S 1 -C T L-C T wherein L is an organic residue with liquid crystalline characteristics, S 1 is an atom or atomic grouping which becomes a spacer, and C T is a charge-transer complex comprising a guest component and a host component covalently bonded directly to said L or through a spacer to said L, said electrically conductive liquid crystalline polymer having an electrically conductivity of 10 -8 to 1 ohm -1 .cm -1 .
Claim 2
Dependent Claim
109 words
An electrically conductive liquid crystalline polymer having in the side chain of the polymer a moiety derived from an electrically conductive liquid crystalline compound represented by the following general formula (I) or (II) L-S 1 -C T L-C T wherein L is an organic residue with liquid crystalline characteristics, S 1 is an atom or atomic grouping which becomes a spacer, and C T is a charge-transer complex comprising a guest component and a host component covalently bonded directly to said L or through a spacer to said L, said electrically conductive liquid crystalline polymer having an electrically conductivity of 10 -8 to 1 ohm -1 .cm -1 .
Claim 3
Dependent Claim
27 words
An electrically conductive liquid crystalline polymer as claimed in claim 1, wherein the host component is an electron donor and the guest component is an electron acceptor.
Claim 4
Dependent Claim
27 words
An electrically conductive liquid crystalline polymer as claimed in claim 1, wherein the host component is an electron acceptor and the guest component is an electron donor.
Claim 5
Dependent Claim
36 words
An electrically conductive liquid crystalline polymer as claimed in claim 2, wherein the electron donor is selected from the group consisting of aromatic hydrocarbons, aliphatic amines, aromatic amines, heteroaromatic amines, fulvalene derivatives, phthalocyanine and derivatives thereof.
Claim 6
Dependent Claim
38 words
An electrically conductive liquid crystalline polymer as claimed in claim 4, wherein the electron acceptor is selected from the group consisting of halogens, metal halides, tetracyanoquinodimethane and derivatives thereof, tetracyanoethylene and derivatives thereof, substituted benzoquinones, trinitrobenzene and perchlorate.
Claim 7
Dependent Claim
34 words
An electrically conductive liquid crystalline polymer as claimed in claim 2, wherein the charge-transfer complex is obtained by complexing the acceptor component with the donor component bonded in advance to the liquid crystalline compound.
Claim 8
Dependent Claim
34 words
An electrically conductive liquid crystalline polymer as claimed in claim 3, wherein the charge-transfer complex is obtained by complexing the donor component to the acceptor component bonded in advance to the liquid crystalline compound.
Claim 9
Dependent Claim
29 words
An electrically conductive liquid crystalline polymer as claimed in claim 2, wherein the mole ratio of the donor to the acceptor is in the range of 10/1 to 1/10.
Claim 10
Dependent Claim
29 words
An electrically conductive liquid crystalline polymer as claimed in claim 8, wherein the mole ratio of the donor to the acceptor is in the range of 4/1 to 1/4.
Claim 11
Dependent Claim
29 words
An electrically conductive liquid crystalline polymer as claimed in claim 9, wherein the mole ratio of the donor to the acceptor is in the range of 5/2 to 1/3.
Claim 12
Dependent Claim
31 words
An electrically conductive liquid crystalline polymer as claimed in claim 1, wherein the liquid crystalline polymer has an electrical conductivity of 10 -6 to 10 -2 ohm -1 .cm -1 .
References Cited (Backward Citations)
US3838059A
Cited
US3814700A
Cited
US3975285A
Cited
US3920576A
Cited
US3956167A
Cited
SU463692A1
Cited
US3932298A
Cited
US3979320A
Cited
US3990984A
Cited
JPS5172984A
Cited
US4066569A
Cited
US4088393A
Cited
US4249013A
Cited
US4366080A
Cited
JPS56147881A
Cited
EP0051768A1
Cited
DE3125758A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-04-13 | 1990-10-13 | 1991-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-13 | 1994-10-13 | 1995-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-13 | 1998-10-13 | 1999-04-14 | $7700.00 | Window Closed / Lapsed |