US3967835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure-sensitive copying material
Assignee: Fujifilm Holdings Corp
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Filing: 1975-07-08
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Granted: 1976-07-06
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Expires: 1995-07-08
Abstract
Abstract A pressure-sensitive copying material comprising a support having thereon a microencapsulated color former capable of forming a distinct color when reacted with an electron-accepting solid, the microencapsulated color former comprising at least one benzoxazine derivative represented by the formula (Ia) , A BENZODIOXANE DERIVATIVE REPRESENTED BY THE FORMULA (Ib) AND A MIXTURE THEREOF, WHEREIN R1, R2, R3, R4, R5 and X are as defined hereinafter.
Inventors
- 👤 Minoru Ozutsumi
- 👤 Yoshihide Miyazawa
- 👤 Masahiko Yamaguchi
- 👤 Akio Watanabe
- 👤 Keiso Saeki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:15
CPC Classifications
C; C07; C07D; C07D319/00; C07D319/04; C07D319/08; C07D265/00; C07D265/04; C07D265/12; C07D265/14; C07D265/18; C09; C09B; C09B11/00; C09B11/04; C09B11/10; Y; Y10; Y10S; Y10S428/00; Y10S428/914; Y10T; Y10T428/00; Y10T428/25
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
468 words
A pressure-sensitive copying material comprising a support having thereon a microencapsulated color former capable of forming a color on contact with an electron-donating color developer, the color former comprising at least one of a benzoxazine derivative represented by the formula (Ia) ##SPC10## , a benzodioxane derivative represented by the formula (Ib) ##SPC11## or a mixture thereof; wherein R 1 and R 3 , which may be the same or different, each represents a lower alkyl group having 1 to 4 carbon atoms, a benzyl group or a phenyl group, in which the aromatic nucleus of the benzyl and phenyl groups may be substituted with a lower alkyl group having 1 to 4 carbon atoms, a lower alkoxy group having 1 to 4 carbon atoms or a di-lower alkylamino group having 1 to 4 carbon atoms in each of the alkyl moieties thereof; R 2 and R 4 , which may be the same or different, each represents a hydrogen atom, a lower alkyl group having 1 to 4 carbon atoms, a benzyl group or a phenyl group, in which the aromatic nucleus of said benzyl and phenyl groups may be substituted with a halogen atom or a di-lower alkylamino group having 1 to 4 carbon atoms in each of the alkyl moieties thereof; R 5 represents a hydrogen atom, a lower alkyl group having 1 to 4 carbon atoms, a lower alkoxy group having 1 to 4 carbon atoms, a halogen atom, a di-lower alkylamino group having 1 to 4 carbon atoms in each of the alkyl moieties thereof, a dibenzylamino group, an N-lower alkyl-N-benzylamino group having 1 to 4 carbon atoms in the lower alkyl moiety thereof, an N-lower alkyl-N-benzylamino group having 1 to 4 carbon atoms in the lower moiety thereof, in which the aromatic nucleus of the benzyl and phenyl groups may be substituted with a halogen atom, a lower alkyl group having 1 to 4 carbon atoms, or a lower alkoxy group having 1 to 4 carbon atoms; and X represents a lower alkyl group having 1 to 4 carbon atoms, a lower alkyl group having 2 to 4 carbon atoms, a cyclohexyl group, an aralkyl group having 1 to 4 carbon atoms in the alkyl moiety thereof or an aryl group, in which the aromatic nucleus of said aralkyl and aryl groups may be substituted with a lower alkyl group having 1 to 4 carbon atoms, a lower alkoxy group having 1 to 4 carbon atoms, a di-lower alkylamino group having 1 to 4 carbon atoms in each of the alkyl moieties thereof, a halogen atom, a nitro group, and when the aralkyl group is a benzyl group, the aromatic nucleus thereof may also be substituted with an N-lower alkyl-N-phenyl group having 1 to 4 carbon atoms in the N-lower alkyl moiety thereof.
Claim 2
Dependent Claim
468 words
A pressure-sensitive copying material comprising a support having thereon a microencapsulated color former capable of forming a color on contact with an electron-donating color developer, the color former comprising at least one of a benzoxazine derivative represented by the formula (Ia) ##SPC10## , a benzodioxane derivative represented by the formula (Ib) ##SPC11## or a mixture thereof; wherein R 1 and R 3 , which may be the same or different, each represents a lower alkyl group having 1 to 4 carbon atoms, a benzyl group or a phenyl group, in which the aromatic nucleus of the benzyl and phenyl groups may be substituted with a lower alkyl group having 1 to 4 carbon atoms, a lower alkoxy group having 1 to 4 carbon atoms or a di-lower alkylamino group having 1 to 4 carbon atoms in each of the alkyl moieties thereof; R 2 and R 4 , which may be the same or different, each represents a hydrogen atom, a lower alkyl group having 1 to 4 carbon atoms, a benzyl group or a phenyl group, in which the aromatic nucleus of said benzyl and phenyl groups may be substituted with a halogen atom or a di-lower alkylamino group having 1 to 4 carbon atoms in each of the alkyl moieties thereof; R 5 represents a hydrogen atom, a lower alkyl group having 1 to 4 carbon atoms, a lower alkoxy group having 1 to 4 carbon atoms, a halogen atom, a di-lower alkylamino group having 1 to 4 carbon atoms in each of the alkyl moieties thereof, a dibenzylamino group, an N-lower alkyl-N-benzylamino group having 1 to 4 carbon atoms in the lower alkyl moiety thereof, an N-lower alkyl-N-benzylamino group having 1 to 4 carbon atoms in the lower moiety thereof, in which the aromatic nucleus of the benzyl and phenyl groups may be substituted with a halogen atom, a lower alkyl group having 1 to 4 carbon atoms, or a lower alkoxy group having 1 to 4 carbon atoms; and X represents a lower alkyl group having 1 to 4 carbon atoms, a lower alkyl group having 2 to 4 carbon atoms, a cyclohexyl group, an aralkyl group having 1 to 4 carbon atoms in the alkyl moiety thereof or an aryl group, in which the aromatic nucleus of said aralkyl and aryl groups may be substituted with a lower alkyl group having 1 to 4 carbon atoms, a lower alkoxy group having 1 to 4 carbon atoms, a di-lower alkylamino group having 1 to 4 carbon atoms in each of the alkyl moieties thereof, a halogen atom, a nitro group, and when the aralkyl group is a benzyl group, the aromatic nucleus thereof may also be substituted with an N-lower alkyl-N-phenyl group having 1 to 4 carbon atoms in the N-lower alkyl moiety thereof.
Claim 3
Dependent Claim
55 words
The pressure-sensitive copying paper as claimed in claim 1, wherein said mixture is selected from the group consisting of a. a mixture of 4,4-bis(4'-dimethylaminophenyl)-3-methyl-7-diethylamino-3H-1,3-benzoxazine-2-one and 4,4-bis(4'-dimethylaminophenyl)-2-methylimino-7-diethylamino-1,3-benzdioxane, b. a mixture of 4,4-bis(4'-dimethylaminophenyl)-3-phenyl-7-diethylamino-3H-1,3-benzoxazine-2-one and 4,4-bis(4'-dimethylaminophenyl)-2-phenylimino-7-diethylamino-1,3-benzodioxane, c. a mixture of 4,4-bis(4'-dimethylaminophenyl)-3-(1'-naphthyl)-7-diethylamino-3H-1,3-benzoxazine-2-one and 4,4-bis(4'-dimethylaminophenyl)-2-(1'-naphthyl)imino-7-diethylamino-1,3-benzodioxane, d. a mixture of 4,4-bis(4'-dimethylaminophenyl)-3-cyclohexyl-7-diethylamino-3H-1,3-benzoxazine-2-one and 4,4-bis(4'-dimethylaminophenyl)-2-cyclohexylimino-7-diethylamino-1,3-benzodioxane, and e. a mixture of 4,4-bis(4'-dimethylaminophenyl)-3-benzyl-7-diethylamino-3H-1,3-benzoxazine-2-one and 4,4-bis(4'-dimethylaminophenyl)-2-benzylimino-7-diethylamino-1,3-benzodioxane.
Claim 4
Dependent Claim
55 words
The pressure-sensitive copying paper as claimed in claim 1, wherein said mixture is selected from the group consisting of a. a mixture of 4,4-bis(4'-dimethylaminophenyl)-3-methyl-3H-1,3-benzoxazine-2-one and 4,4-bis(4'-dimethylaminophenyl)-2-methylimino-1,3-benzodioxane, b. a mixture of 4,4-bis(4'-dimethylaminophenyl)-3-benzyl-3H-1,3-benzoxazine-2-one and 4,4-bis(4'-dimethylaminophenyl)-2-benzylimino-1,3-benzodioxane, c. a mixture of 4,4-bis(4'-dimethylaminophenyl)-3-allyl-3H-1,3-benzoxazine-2-one and 4,4-bis(4'-dimethylaminophenyl)-2-allylimino-1,3-benzodioxane, d. a mixture of 4,4-bis(4'-dimethylaminophenyl)-3-cyclohexyl-3H-benzoxazine-2-one and 4,4-bis(4'-dimethylaminophenyl)-2-cyclohexylimino-1,3-benzodioxane, and e. a mixture of 4,4-bis(4'-dimethylaminophenyl)-3-[4'-(N-methyl-N-benzyl)aminophenyl]-3H-1,3-benzoxazine-2-one and 4,4-bis(4'-dimethylaminophenyl)-2-[4'-(N-methyl-N-benzyl)aminophenylimino]-1,3-benzodioxane.
Claim 5
Dependent Claim
41 words
The pressure-sensitive copying paper as claimed in claim 1, wherein said mixture is selected from the group consisting of a. a mixture of 4,4-bis(4'-dimethylaminophenyl)-3-methyl-7-(N-methyl-N-benzyl)amino-3H-1,3-benzoxazine-2-one and 4,4-bis(4'-dimethylaminophenyl)-2-methylimino-7-(N-methyl-N-benzyl)imino-1,3-benzodioxane, b. a mixture of 4,4-bis(4'-dimethylaminophenyl)-3-(4'-benzylphenyl)-6,7-dichloro-3H-1,3-benzoxazine-2-one and 4,4-bis(4'-dimethylaminophenyl)-2-(4'-benzylphenyl)imino-6,7-dichloro-1,3-benzodioxane and c. a mixture of 4,4-bis(4'-diethylaminophenyl)-3-(3'-nitrophenyl)-7,8-dimethyl-3H-1,3-benzoxazine-2-one and 4,4-bis(4'-diethylaminophenyl)-3-(3'-nitrophenyl)-7,8-dimethyl-3H-1,3-benzodioxane.
Claim 6
Dependent Claim
18 words
The pressure-sensitive copying material of claim 1, wherein said support includes at least one electron-accepting color developer thereon.
Claim 7
Dependent Claim
24 words
The pressure-sensitive copying material of claim 5, wherein said color developer and said color former microcapsules are on the same surface of said support.
Claim 8
Dependent Claim
23 words
The pressure-sensitive copying material of claim 5, wherein said color developer and said color former microcapsules are on opposite surfaces of said support.
Claim 9
Dependent Claim
27 words
A pressure-sensitive copying assembly comprising the pressure-sensitive copying material of claim 1, and a color developer member comprising a support having thereon an electron-donating color developer material.
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) | 1979-07-06 | 1980-01-05 | 1980-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-06 | 1984-01-05 | 1984-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-06 | 1988-01-05 | 1988-07-06 | $7700.00 | Window Closed / Lapsed |