US4639271A
Expired / Lapsed
US
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Chromogenic mixtures
Assignee: Moore Business Forms Inc
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Filing: 1985-04-24
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Granted: 1987-01-27
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Expires: 2005-04-24
Abstract
Abstract A chromogenic mixture capable of forming a black image with zinc-modified phenolic resins is disclosed that includes an orange chromogen, a green or single component black chromogen and a blue, indigo or violet chromogen.
Inventors
- 👤 Robert W. Brunea
- 👤 James M. Raby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:34
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/124; B41M5/132; B41M5/136; B41M5/145; B41M5/1455
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
67 words
A chromogenic mixture comprising: (a) approximately 10% to 60% by weight of an orange chromogen having the following formula: ##STR3## where R1, R2, and R3 are alkyl groups having 1-5 carbon atoms or hydrogen or combinations thereof; (b) approximately 5% to 60% by weight of a blue, indigo or violet chromogen; and (c) approximately 30% to 70% by weight of a green or single component black chromogen.
Claim 2
Dependent Claim
67 words
A chromogenic mixture comprising: (a) approximately 10% to 60% by weight of an orange chromogen having the following formula: ##STR3## where R1, R2, and R3 are alkyl groups having 1-5 carbon atoms or hydrogen or combinations thereof; (b) approximately 5% to 60% by weight of a blue, indigo or violet chromogen; and (c) approximately 30% to 70% by weight of a green or single component black chromogen.
Claim 3
Dependent Claim
30 words
The chromogenic mixture of claim 1 wherein the blue, indigo, or violet chromogen is selected from the group consisting of crystal violet lactone, 6-dimethylamino, bis(3-dimethylaminophenyl, 1,3, dimethylaminophenyl)phthalide and 1',3',6',8' tetra(dimethylaminophenyl)phthalide.
Claim 4
Dependent Claim
40 words
The chromogenic mixture of claim 1 wherein the green or single component black chromogen is selected from the group consisting of 2'(N-methyl, N-phenylamino), 6'-(N-ethyl, N-p-tolylamino) fluoran; 2'-(phenylamino), 3'-methyl, 6'-(N-ethyl, N-p-tolylamino)fluoran; 2'-(bis-phenyl methylamino), 4'-methyl, 6'-diethylamino fluoran; and 2'-phenylamino, 3'-methyl, 6'(N-methyl, N-cyclohexylamino)fluoran.
Claim 5
Dependent Claim
77 words
The chromogenic mixture of claim 1 wherein the orange chromogen has R1 and R3 as methyl groups and R2 as hydrogen and is present in an amount of approximately 35% by weight; the blue, indigo or violet dye is crystal violet lactone and is present in an amount of approximately 20% by weight; and the green or single component black chromogen is 2'(N-methyl, N-phenylamino), 6'-(N-ethyl, N-p-tolylamino)fluoran and is present in an amount of approximately 45% by weight.
Claim 6
Dependent Claim
77 words
The chromogenic mixture of claim 1 wherein the orange chromogen has R1 and R3 as methyl groups and R2 as hydrogen and is present in an amount of approximately 24% by weight, the blue, indigo or violet chromogen is crystal violet lactone and is present in an amount of approximately 16% by weight, and the green or single component black chromogen is 2'-(phenylamino), 3'-methyl, 6'-(N-ethyl, N-p-tolylamino)fluoran and is present in an amount of approximately 60% by weight.
Claim 7
Dependent Claim
99 words
A substantially colorless but colorable marking liquid composition comprising an organic oil solution having a chromogenic mixture dissolved therein, the chromogenic mixture comprising: (a) approximately 10% to 60% by weight of an orange chromogen having the following formula: ##STR4## where R1, R2, and R3 are alkyl groups having 1-5 carbon atoms or hydrogen or combinations therof; (b) approximately 5% to 60% by weight of a blue, indigo or violet chromogen; and (c) approximately 30% to 70% by weight of a green or single component black chromogen; wherein said chromogenic mixture is present in an amount sufficient to form color.
Claim 8
Dependent Claim
99 words
A substantially colorless but colorable marking liquid composition comprising an organic oil solution having a chromogenic mixture dissolved therein, the chromogenic mixture comprising: (a) approximately 10% to 60% by weight of an orange chromogen having the following formula: ##STR4## where R1, R2, and R3 are alkyl groups having 1-5 carbon atoms or hydrogen or combinations therof; (b) approximately 5% to 60% by weight of a blue, indigo or violet chromogen; and (c) approximately 30% to 70% by weight of a green or single component black chromogen; wherein said chromogenic mixture is present in an amount sufficient to form color.
Claim 9
Dependent Claim
31 words
The marking liquid composition of claim 6 wherein the blue, indigo, or violet chromogen is selected from the group consisting of crystal violet lactone, 6-dimethylamino, bis(3-dimethylaminophenyl, 1,3 dimethylaminophenyl)phthalide and 1',3',6',8' tetra(dimethylaminophenyl)phthalide.
Claim 10
Dependent Claim
40 words
The marking liquid composition of claim 6 wherein the green or single component black chromogen is selected from the group consisting of 2'(N-methyl, N-phenylamino), 6'-(N-ethyl, N-p-tolylamino)fluoran; 2'-(phenylamino), 3'-methyl, 6'-(N-ethyl, N-p-tolylamino)fluoran; 2'-(bis-phenyl methylamino), 4'-methyl, 6'-diethylamino fluoran; and 2'-phenylamino, 3'-methyl, 6'(N-methyl, N-cyclohexylamino)fluoran.
Claim 11
Dependent Claim
78 words
The marking liquid composition of claim 6 wherein the orange chromogen has R1 and R3 as methyl groups and R2 as hydrogen and is present in an amount of approximately 35% by weight; the blue, indigo or violet dye is crystal violet lactone and is present in an amount of approximately 20% by weight; and the green or single component black chromogen is 2'(N-methyl, N-phenylamino), 6'-(N-ethyl, N-p-tolylamino)fluoran and is present in an amount of approximately 45% by weight.
Claim 12
Dependent Claim
78 words
The marking liquid composition of claim 6 wherein the orange chromogen has R1 and R3 as methyl groups and R2 as hydrogen and is present in an amount of approximately 24% by weight; the blue, indigo or violet chromogen is crystal violet lactone and is present in an amount of approximately 16% by weight; and the green or single component black chromogen is 2'-(phenylamino), 3'-methyl, 6'-(N-ethyl, N-p-tolylamino)fluoran and is present in an amount of approximately 60% by weight.
References Cited (Backward Citations)
US3560229A
Cited
US3525630A
Cited
US3849164A
Cited
US3857675A
Cited
US3925457A
Cited
US3940275A
Cited
US3883557A
Cited
US3952117A
Cited
US4073614A
Cited
US4032690A
Cited
US4168845A
Cited
US4180405A
Cited
US4262936A
Cited
US4263047A
Cited
US4197346A
Cited
US4275906A
Cited
US4324817A
Cited
US4363664A
Cited
US4376150A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1990-01-26 | 1990-07-28 | 1991-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-26 | 1994-07-28 | 1995-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-26 | 1998-07-28 | 1999-01-27 | $7700.00 | Window Closed / Lapsed |