US4479885A
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Phthalonitrile derivatives and a liquid crystal composition containing the same
Assignee: Mitsubishi Chemical Corp
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Filing: 1983-02-25
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Granted: 1984-10-30
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Expires: 2003-02-25
Abstract
Abstract Phthalonitrile derivatives represented by the formula (I): <IMAGE> (I) (wherein X and Y each represents an alkyl group having 1 to 9 carbon atoms, an alkoxy group havng 1 to 9 carbon atoms, <IMAGE> <IMAGE> <IMAGE> <IMAGE> +TR <IMAGE> (wherein R1 represents a hydrogen atom, -CmH2m+1, -O-(CH2CH2O)n-CmH2m+1, <IMAGE> or a halogen atom, wherein m represents an integer of 1 to 9 and n represents 0, 1 or 2), but at least one of X and Y does not represent a methyl group, and Y does not not represent an alkyl group having 1 to 9 carbon atoms or an alkoxy group having 1 to 9 carbon atoms in the case that X represents R1 H and R1 represents an alkyl group having 1 to 9 carbon atoms).
Inventors
- 👤 Akio Mukoh
- 👤 Teruo Kitamura
- 👤 Masaharu Kaneko
- 👤 Tetsuo Ozawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:26
CPC Classifications
C; C07; C07C; C07C255/00; C09; C09K; C09K19/00; C09K19/04; C09K19/06; C09K19/08; C09K19/10; C09K19/12; C09K19/30; C09K19/3001; C09K19/3003; C09K19/3066; C09K19/32; C09K19/321; C09K19/0403; C09K2019/0407
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
135 words
Phthalonitrile derivatives represented by the formula (I): ##STR30## (wherein X and Y each represents an alkyl group having 1 to 9 carbon atoms, an alkoxy group having 1 to 9 carbon atoms, ##STR31## (wherein R 1 represents a hydrogen atom, --C m H 2m+1 , --O--(CH 2 CH 2 O) n --C m H 2m+1 , ##STR32## or a halogen atom, wherein m represents an integer of 1 to 9 and n represents 0, 1 or 2), but at least one of X and Y does not represent a methyl group, and Y does not represent an alkyl group having 1 to 9 carbon atoms or an alkoxy group having 1 to 9 carbon atoms in the case that X represents ##STR33## and R 1 represents an alkyl group having 1 to 9 carbon atoms).
Claim 2
Dependent Claim
135 words
Phthalonitrile derivatives represented by the formula (I): ##STR30## (wherein X and Y each represents an alkyl group having 1 to 9 carbon atoms, an alkoxy group having 1 to 9 carbon atoms, ##STR31## (wherein R 1 represents a hydrogen atom, --C m H 2m+1 , --O--(CH 2 CH 2 O) n --C m H 2m+1 , ##STR32## or a halogen atom, wherein m represents an integer of 1 to 9 and n represents 0, 1 or 2), but at least one of X and Y does not represent a methyl group, and Y does not represent an alkyl group having 1 to 9 carbon atoms or an alkoxy group having 1 to 9 carbon atoms in the case that X represents ##STR33## and R 1 represents an alkyl group having 1 to 9 carbon atoms).
Claim 3
Dependent Claim
82 words
Phthalonitrile derivatives according to claim 1 represented by the formula (II): ##STR34## (wherein R 2 represents a hydrogen atom, an alkyl group having 1 to 9 carbon atoms, an alkoxy group having 1 to 9 carbon atoms, a halogen atom, ##STR35## and R 3 represents an alkyl group having 1 to 9 carbon atoms or ##STR36## (wherein R 4 represents a hydrogen atom, an alkyl group having 1 to 9 carbon atoms or an alkoxy group having 1 to 9 carbon atoms)).
Claim 4
Dependent Claim
73 words
Phthalonitrile derivatives according to claim 2 represented by the formula (II'): ##STR37## (wherein R 2' represents an alkyl group having 1 to 9 carbon atoms or an alkoxy group having 1 to 9 carbon atoms, and R 3' represents an alkyl group having 1 to 9 carbon atoms or ##STR38## (wherein R 4' represents an alkyl group having 1 to 9 carbon atoms or an alkoxy group having 1 to 9 carbon atoms)).
Claim 5
Dependent Claim
131 words
Phthalonitrile derivatives according to claim 1 represented by the formula (III): ##STR39## (wherein R 5 represents a hydrogen atom, an alkyl group having 1 to 9 carbon atoms, an alkoxy group having 1 to 9 carbon atoms or ##STR40## and R 6 represents an alkyl group having 1 to 9 carbon atoms, an alkoxy group having 1 to 9 carbon atoms, ##STR41## (wherein R 4 represents a halogen atom, a hydrogen atom, an alkyl group having 1 to 9 carbon atoms or an alkoxy group having 1 to 9 carbon atoms), but R 6 does not represent an alkyl group having 1 to 9 carbon atoms or an alkoxy group having 1 to 9 carbon atoms in case that R 5 represents an alkyl group having 1 to 9 carbon atoms).
Claim 6
Dependent Claim
69 words
Phthalonitrile derivatives according to claim 4 represented by the formula (III'): ##STR42## (wherein R 5' represents a hydrogen atom, an alkyl group having 1 to 9 carbon atoms or an alkoxy group having 1 to 9 carbon atoms, and R 6' represents ##STR43## (wherein R 4" represents a halogen atom, an alkyl group having 1 to 9 carbon atoms or an alkoxy group having 1 to 9 carbon atoms)).
Claim 7
Dependent Claim
79 words
Phthalonitrile derivatives according to claim 1 represented by the formula (IV): ##STR44## (wherein R 7 represents an alkyl group having 1 to 9 carbon atoms, R 8 represents an alkyl group having 1 to 9 carbon atoms, an alkoxy group having 1 to 9 carbon atoms, ##STR45## (wherein R 4 represents a hydrogen atom, an alkyl group having 1 to 9 carbon atoms or an alkoxy group having 1 to 9 carbon atoms), and p represents 0 or 1).
Claim 8
Dependent Claim
151 words
A liquid crystal composition comprising at least two components, at least one of which is a phthalonitrile derivative represented by the Formula (I): ##STR46## (wherein X and Y each represents an alkyl group having 1 to 9 carbon atoms, an alkoxy group having 1 to 9 carbon atoms ##STR47## (wherein R 1 represents a hydrogen atom, --C m H 2m+1 , --O--(CH 2 CH 2 O) n --C m H 2m+1 , ##STR48## or a halogen atom, wherein m represents an integer of 1 to 9 and n represents 0, 1 or 2), but at least one of X and Y does not represent a methyl group, and Y does not represent an alkyl group having 1 to 9 carbon atoms or an alkoxy group having 1 to 9 carbon atoms in the case that X represents ##STR49## and R 1 represents an alkyl group having 1 to 9 carbon atoms).
Claim 9
Dependent Claim
151 words
A liquid crystal composition comprising at least two components, at least one of which is a phthalonitrile derivative represented by the Formula (I): ##STR46## (wherein X and Y each represents an alkyl group having 1 to 9 carbon atoms, an alkoxy group having 1 to 9 carbon atoms ##STR47## (wherein R 1 represents a hydrogen atom, --C m H 2m+1 , --O--(CH 2 CH 2 O) n --C m H 2m+1 , ##STR48## or a halogen atom, wherein m represents an integer of 1 to 9 and n represents 0, 1 or 2), but at least one of X and Y does not represent a methyl group, and Y does not represent an alkyl group having 1 to 9 carbon atoms or an alkoxy group having 1 to 9 carbon atoms in the case that X represents ##STR49## and R 1 represents an alkyl group having 1 to 9 carbon atoms).
References Cited (Backward Citations)
US4279770A
Cited
US4368135A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-30 | 1988-04-30 | 1988-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-30 | 1992-04-30 | 1992-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-30 | 1996-04-30 | 1996-10-30 | $7700.00 | Window Closed / Lapsed |