US4612558A
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Fluoran compounds
Assignee: Hodogaya Chemical Co Ltd
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Filing: 1985-03-12
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Granted: 1986-09-16
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Expires: 2005-03-12
Abstract
Abstract A fluoran compound having the formula: <IMAGE> (I) wherein each of R1 and R2 is a hydrogen atom, a straight chain or branched alkyl group having from 1 to 8 carbon atoms, a cyclohexyl group, a substituted or unsubstituted phenyl group, or a substituted or unsubstituted benzyl group, Q is <IMAGE> (wherein X is a hydrogen atom, a halogen atom, or a straight chain or branched alkyl group having from 1 to 8 carbon atoms), <IMAGE> (wherein X is as defined above), or -(CH2)nOR4 (wherein R4 is a straight chain or branched alkyl group having from 1 to 8 carbon atoms, a cycloalkyl group, a substituted or unsubstituted phenyl group, or a substituted or unsubstituted benzyl group, and n is an integer of from 1 to 8), and R3 is a hydrogen atom, a halogen atom, a lower fluoroalkyl group, an acyl group, an alkoxy group, an alkoxyalkyl group, or a straight chain or branched alkyl group having from 1 to 8 carbon atoms.
Inventors
- 👤 Mitsutoshi Anzai
- 👤 Masahiko Yamaguchi
- 👤 Kazuyuki Wakasugi
- 👤 Susumu Suzuka
- 👤 Michihiro Gonda
- 👤 Toshiyuki Abe
- 👤 Katsumasa Kikkawa
- 👤 Mikiko Kanasugi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:45
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/30; B41M5/323; B41M5/327; B41M5/3275; C; C07; C07D; C07D493/00; C07D493/02; C07D493/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
173 words
A fluoran compound having the formula: ##STR49## wherein each of R 1 and R 2 is a hydrogen atom, a straight chain or branched alkyl group having from 1 to 8 carbon atoms, a cyclohexyl group, a substituted or unsubstituted phenyl group, or a substituted or unsubstituted benzyl group, Q is either ##STR50## wherein X is a hydrogen atom, a halogen atom, or a straight chain or branched alkyl group having from 1 to 8 carbon atoms, ##STR51## wherein X is as defined above, or --(CH 2 ) n OR 4 wherein R 4 is a straight chain or branched alkyl group having from 1 to 8 carbon atoms, a cycloalkyl group, a substituted or unsubstituted phenyl group, or a substituted or unsubstituted benzyl group, and n is an integer of from 1 to 8, and R 3 is a hydrogen atom, a halogen atom, a lower fluoroalkyl group, an acyl group, an alkoxy group, an alkoxyalkyl group, or a straight chain or branched alkyl group having from 1 to 8 carbon atoms.
Claim 2
Dependent Claim
173 words
A fluoran compound having the formula: ##STR49## wherein each of R 1 and R 2 is a hydrogen atom, a straight chain or branched alkyl group having from 1 to 8 carbon atoms, a cyclohexyl group, a substituted or unsubstituted phenyl group, or a substituted or unsubstituted benzyl group, Q is either ##STR50## wherein X is a hydrogen atom, a halogen atom, or a straight chain or branched alkyl group having from 1 to 8 carbon atoms, ##STR51## wherein X is as defined above, or --(CH 2 ) n OR 4 wherein R 4 is a straight chain or branched alkyl group having from 1 to 8 carbon atoms, a cycloalkyl group, a substituted or unsubstituted phenyl group, or a substituted or unsubstituted benzyl group, and n is an integer of from 1 to 8, and R 3 is a hydrogen atom, a halogen atom, a lower fluoroalkyl group, an acyl group, an alkoxy group, an alkoxyalkyl group, or a straight chain or branched alkyl group having from 1 to 8 carbon atoms.
Claim 3
Dependent Claim
129 words
The fluoran compound according to claim 1, wherein R 1 is --C 2 H 5 , --C 4 H 9 , --C 6 H 13 , --C 8 H 17 , ##STR52## R 2 is --CH 3 , --C 2 H 5 , --C 4 H 9 , --CH(CH 3 ) 2 , or i-C 5 H 11 ; R 3 is --H, 2-Cl, 2-F, 4-CH 2 OC 2 H 5 , 4-CH 3 , or 2-CF 3 ; and Q is --(CH 2 ) n OR 4 wherein R 4 is --CH 3 , --C 2 H 5 , n-C 3 H 7 , --C 4 H 9 , --CH(CH 3 ) 2 , --C 8 H 17 , ##STR53## and n is 1, 2, 3 or 4.
Claim 4
Dependent Claim
82 words
The fluoran compound according to claim 1, wherein R 1 is --C 2 H 5 , i-C 3 H 7 ,n-C 4 H 9 , ##STR54## R 2 is --CH 3 , --C 2 H 5 , n-C 4 H 9 , or i-C 5 H 11 ; R 3 is --H, 2-Cl, 4-Cl, 2-CH 3 , 4-CH 3 , or 2-F; and Q is ##STR55## wherein X is --H, 2-C 2 H 5 , 4-C 2 H 5 , or 2-Cl.
Claim 5
Dependent Claim
115 words
The fluoran compound according to claim 1, wherein R 1 is --C 2 H 5 , n-C 3 H 7 , i-C 3 H 7 , n-C 4 H 9 , sec-C 4 H 9 , i-C 5 H 11 , ##STR56## --C 2 H 4 OC 2 H 5 , or --C 3 H 6 OC 2 H 5 ; R 2 is --CH 3 , --C 3 H 7 , n-C 4 H 9 , sec-C 4 H 9 , i-C 5 H 11 , or ##STR57## R 3 is --H, 2-Cl, 2-F, 2-CH 3 , or 4-CH 3 ; Q is ##STR58## wherein X is --H, 4-CH 3 , 4-Cl, or 4-F.
Claim 6
Dependent Claim
183 words
A heat sensitive record sheet which comprises a coated layer comprising a fluoran compound having the formula: ##STR59## wherein each of R 1 and R 2 is a hydrogen atom, a straight chain or branched alkyl group having from 1 to 8 carbon atoms, a cyclohexyl group, a substituted or unsubstituted phenyl group, or a substituted or unsubstituted benzyl group, Q is ##STR60## wherein X is a hydrogen atom, a halogen atom, or a straight chain or branched alkyl group having from 1 to 8 carbon atoms, ##STR61## wherein X is as defined above, or --(CH 2 ) n OR 4 wherein R 4 is a straight chain or branched alkyl group having from 1 to 8 carbon atoms, a cycloalkyl group, a substituted or unsubstituted phenyl group, or a substituted or unsubstituted benzyl group, and n is an integer of from 1 to 8, and R 3 is a hydrogen atom, a halogen atom, a lower fluoroalkyl group, an acyl group, an alkoxy group, an alkoxyalkyl group, or a straight chain or branched alkyl group having from 1 to 8 carbon atoms.
Claim 7
Dependent Claim
183 words
A heat sensitive record sheet which comprises a coated layer comprising a fluoran compound having the formula: ##STR59## wherein each of R 1 and R 2 is a hydrogen atom, a straight chain or branched alkyl group having from 1 to 8 carbon atoms, a cyclohexyl group, a substituted or unsubstituted phenyl group, or a substituted or unsubstituted benzyl group, Q is ##STR60## wherein X is a hydrogen atom, a halogen atom, or a straight chain or branched alkyl group having from 1 to 8 carbon atoms, ##STR61## wherein X is as defined above, or --(CH 2 ) n OR 4 wherein R 4 is a straight chain or branched alkyl group having from 1 to 8 carbon atoms, a cycloalkyl group, a substituted or unsubstituted phenyl group, or a substituted or unsubstituted benzyl group, and n is an integer of from 1 to 8, and R 3 is a hydrogen atom, a halogen atom, a lower fluoroalkyl group, an acyl group, an alkoxy group, an alkoxyalkyl group, or a straight chain or branched alkyl group having from 1 to 8 carbon atoms.
References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1989-09-15 | 1990-03-17 | 1990-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-15 | 1994-03-17 | 1994-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-15 | 1998-03-17 | 1998-09-16 | $7700.00 | Window Closed / Lapsed |