US4069167A
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Liquid crystal composition
Assignee: JNC Corp
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Filing: 1975-09-10
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Granted: 1978-01-17
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Expires: 1995-09-10
Abstract
Abstract Liquid crystal compositions which are novel and specified TND compositions having a broad useful temperature range are provided by combining the following groups of compounds and specifying the individual and total amounts of compound or compounds in each group (mol % relative to the total composition). Said groups are 1. two kinds of specified compounds selected from 4-cyano-4"-n-alkylterphenyls, or one kind of compound selected from the above-mentioned specified compounds, 2. three kinds or two kinds of specified compounds selected from 4-cyano-4'-n-alkylbiphenyls, and 3. three or more than three kinds of compounds selected from specified 6 kinds of compounds selected from 4-cyano-4'-n-alkoxybiphenyls.
Inventors
- 👤 Takashi Inukai
- 👤 Hideo Sato
- 👤 Tetsuya Ishibe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:55
CPC Classifications
C; C09; C09K; C09K19/00; C09K19/04; C09K19/06; C09K19/08; C09K19/10; C09K19/12
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
237 words
A liquid crystal composition having a liquid crystal temperature range encompassing the range of -10° C to 60° C, comprising in combination a. at least one component selected from the group consisting of a 1 . 4-cyano-4"-n-pentylterphenyl in an amount within the range of 4 to 8 mol %, and a 2 . 4-cyano-4"-hexylterphenyl, in an amount within the range of 4 to 8 mol%, b. at least two components selected from the group consisting of b 1 . 4-cyano-4'-n-pentylbiphenyl, in an amount between 10 to 45 mol%, b 2 . 4-cyano-4'-n-heptylbiphenyl in an amount between 10 to 45 mol %, and b 3 . 4-cyano-4'-n-hexylbiphenyl in an amount between 10 to 45 mol %, the total amount of said at least two components being within the range of 50 to 75 mol %, and c. at least three components selected from the group consisting of c 1 . 4-cyano-4'-n-propyloxybiphenyl, 3.5-13 mol %, c 2 . 4-cyano-4'-n-butyloxybiphenyl, 3.5 - 13 mol %, c 3 . 4-cyano-4'-n-pentyloxybiphenyl, 3.5 - 13 mol %, c 4 . 4-cyano-4'-n-hexyloxybiphenyl, 3.5 - 13 mol %, c 5 . 4-cyano-4'-n-heptyloxybiphenyl, 3.5 - 13 mol %, and c 6 . 4-cyano-4'-n-octyloxybiphenyl, 3.5 - 13 mol %, the total amount of said at least three components being within the range of 20 - 38 mol %, all of the above mol percentages being based on the total composition and the total mol% always being 100.
Claim 2
Dependent Claim
237 words
A liquid crystal composition having a liquid crystal temperature range encompassing the range of -10° C to 60° C, comprising in combination a. at least one component selected from the group consisting of a 1 . 4-cyano-4"-n-pentylterphenyl in an amount within the range of 4 to 8 mol %, and a 2 . 4-cyano-4"-hexylterphenyl, in an amount within the range of 4 to 8 mol%, b. at least two components selected from the group consisting of b 1 . 4-cyano-4'-n-pentylbiphenyl, in an amount between 10 to 45 mol%, b 2 . 4-cyano-4'-n-heptylbiphenyl in an amount between 10 to 45 mol %, and b 3 . 4-cyano-4'-n-hexylbiphenyl in an amount between 10 to 45 mol %, the total amount of said at least two components being within the range of 50 to 75 mol %, and c. at least three components selected from the group consisting of c 1 . 4-cyano-4'-n-propyloxybiphenyl, 3.5-13 mol %, c 2 . 4-cyano-4'-n-butyloxybiphenyl, 3.5 - 13 mol %, c 3 . 4-cyano-4'-n-pentyloxybiphenyl, 3.5 - 13 mol %, c 4 . 4-cyano-4'-n-hexyloxybiphenyl, 3.5 - 13 mol %, c 5 . 4-cyano-4'-n-heptyloxybiphenyl, 3.5 - 13 mol %, and c 6 . 4-cyano-4'-n-octyloxybiphenyl, 3.5 - 13 mol %, the total amount of said at least three components being within the range of 20 - 38 mol %, all of the above mol percentages being based on the total composition and the total mol% always being 100.
Claim 3
Dependent Claim
120 words
A liquid crystal composition according to claim 1 wherein the amount of component (a 1 ) or (a 2 ) is within the range of 5 - 8 mol %, the amount of component (b 1 ) is within the range of 35 - 45 mol %, the amount of component (b 2 ) is within the range of 17 - 24 mol %, and the individual amounts of the components (c 1 ), (c 2 ), (c 3 ), (c 4 ), (c 5 ) and (c 6 ) is within the range of 6 - 13 mol % and the total amount of said at least three components is within the range of 25 - 38 mol %.
Claim 4
Dependent Claim
86 words
A liquid crystal composition according to claim 1 wherein components (a 1 ) and (a 2 ) are both present, each in an amount within the range of 4.0 to 7.5 mol %, the component which is present in the lesser amount being present in an amount which is less than 10 mol% smaller than the component which is present in the greater amount, and the total amount of said at least three components in (c) being within the range of 20 - 35 mol %.
Claim 5
Dependent Claim
40 words
A liquid crystal composition according to claim 1 comprising the following components in the indicated amounts: 4-cyano-4'-n-pentylbiphenyl, 42.5 mol % 4-cyano-4'-n-heptylbiphenyl, 22 mol % 4-cyano-4'-n-pentyloxybiphenyl, 9.5 mol % 4-cyano-4'-n-heptyloxybiphenyl, 8 mol % 4-cyano-4'-n-octyloxybiphenyl, 11 mol % 4-cyano-4"-n-hexylterphenyl, 7 mol %.
Claim 6
Dependent Claim
48 words
A liquid crystal composition according to claim 1 comprising the following components in the indicated amounts: 4-cyano-4'-n-pentylbiphenyl, 37 mol % 4-cyano-4'-n-heptylbiphenyl, 18 mol % 4-cyano-4'-n-propyloxybiphenyl, 11 mol % 4-cyano-4'-n-pentyloxybiphenyl, 7.2 mol % 4-cyano-4'-n-heptyloxybiphenyl, 6 mol % 4-cyano-4'-n-octyloxybiphenyl, 9 mol % 4-cyano-4"-n-pentylterphenyl, 5.7 mol % 4-cyano-4'-n-hexylterphenyl, 6.1 mol %.
Claim 7
Dependent Claim
44 words
A liquid crystal composition according to claim 1 comprising the following components in the indicated amounts: 4-cyano-4'-n-pentylbiphenyl, 39 mol % 4-cyano-4'-n-heptylbiphenyl, 19.5 mol % 4-cyano-4'-n-propyloxybiphenyl, 11 mol % 4-cyano-4'-n-pentyloxybiphenyl, 8 mol % 4-cyano-4'-n-heptyloxybiphenyl, 6.5 mol % 4-cyano-4'-n-octyloxybiphenyl, 9.5 mol % 4-cyano-4"-n-hexylterphenyl, 6.5 mol %.
Claim 8
Dependent Claim
40 words
A liquid crystal composition according to claim 1 comprising the following components in the indicated amounts: 4-cyano-4'-n-pentylbiphenyl, 43 mol % 4-cyano-4'-n-heptylbiphenyl, 22 mol % 4-cyano-4'-n-pentyloxybiphenyl, 9.5 mol % 4-cyano-4'-n-heptyloxybiphenyl, 8 mol % 4-cyano-4'-n-octyloxybiphenyl, 11 mol % 4-cyano-4'-n-pentylterphenyl, 6.5 mol %.
Claim 9
Dependent Claim
44 words
A liquid crystal composition according to claim 1 comprising the following components in the indicated amounts: 4-cyano-4'-n-pentylbiphenyl, 39 mol % 4-cyano-4'-n-heptylbiphenyl, 19.5 mol % 4-cyano-4'-n-propyloxybiphenyl, 11 mol % 4-cyano-4'-n-pentyloxybiphenyl, 8 mol % 4-cyano-4'-n-heptyloxybiphenyl, 7 mol % 4-cyano-4'-n-octyloxybiphenyl, 9.5 mol % 4-cyano-4"-n-pentylterphenyl, 6 mol %.
Claim 10
Dependent Claim
48 words
A liquid crystal composition according to claim 1 comprising the following components in the indicated amounts: 4-cyano-4'-n-pentylbiphenyl, 31.5 mol % 4-cyano-4'-n-hexylbiphenyl, 27 mol % 4-cyano-4'-n-heptylbiphenyl, 14 mol % 4-cyano-4'-n-pentyloxybiphenyl, 5.5 mol % 4-cyano-4'-n-heptyloxybiphenyl, 5 mol % 4-cyano-4'-n-octyloxybiphenyl, 7 mol % 4-cyano-4"-n-pentylterphenyl, 5 mol % 4-cyano-4"-n-hexylterphenyl, 5 mol %.
Claim 11
Dependent Claim
44 words
A liquid crystal composition according to claim 1 comprising the following components in the indicated amounts: 4-cyano-4'-n-pentylbiphenyl, 40.5 mol % 4-cyano-4'-n-heptylbiphenyl, 21 mol % 4-cyano-4'-n-pentyloxybiphenyl, 8.5 mol % 4-cyano-4'-n-heptyloxybiphenyl, 7 mol % 4-cyano-4'-n-octyloxybiphenyl, 10 mol % 4-cyano-4"-n-pentylterphenyl, 6.3 mol % 4-cyano-4"-n-hexylterphenyl, 6.7 mol %.
Claim 12
Dependent Claim
52 words
A liquid crystal composition according to claim 1 comprising the following components in the indicated amounts: 4-cyano-4'-n-pentylbiphenyl, 29.5 mol % 4-cyano-4'-n-hexylbiphenyl, 24 mol % 4-cyano-4'-n-heptylbiphenyl, 13 mol % 4-cyano-4'-n-propyloxybiphenyl, 8 mol % 4-cyano-4'-n-pentyloxybiphenyl, 5 mol % 4-cyano-4'-n-heptyloxybiphenyl, 4 mol % 4-cyano-4'-n-octyloxybiphenyl, 6.5 mol % 4-cyano-4"-n-pentylterphenyl, 4.6 mol % 4-cyano-4"-n-hexylterphenyl, 4.9 mol %.
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) | 1981-01-16 | 1981-07-18 | 1982-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-16 | 1985-07-18 | 1986-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-16 | 1989-07-18 | 1990-01-17 | $7700.00 | Window Closed / Lapsed |