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US4734489A
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Trisazo compounds useful in producing water-resistant ink compositions
Assignee: Taoka Chemical Co Ltd
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Filing: 1986-03-27
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Granted: 1988-03-29
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Expires: 2006-03-27
Abstract
Abstract An azo compound of the formula: <IMAGE> (I) wherein R is of the formula: <IMAGE> <IMAGE> <IMAGE> <IMAGE> +TR <IMAGE> R1 is hydrogen, methyl or -SO3M; R2 is hydrogen or -SO3M; R2 is hydrogen or -SO3M; R3 is C4-C18 alkyl and M is hydrogen, an alkali metal, ammonium or organic ammonium, provided that when R includes -SO3M, R1 l and R2 are not -SO3M, and when R does not include -SO3M, either one of R1 and R2 is -SO3M, which is useful as a black dyestuff for a solvent type ink composition, particularly for ink jet recording.
Inventors
- 👤 Shinjiro Kawasaki
- 👤 Hideo Kitagawa
- 👤 Yutaka Nishii
- 👤 Hideo Kawashita
- 👤 Minoru Akagi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:48
CPC Classifications
C; C09; C09B; C09B31/00; C09D; C09D11/00; C09D11/30; C09D11/32; C09D11/328; C09B35/00; C09B35/38; C09B35/44; C09B35/46; C09B35/461
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
92 words
An azo compound of the formula: ##STR32## wherein R is of the formula: ##STR33## R 1 is hydrogen, methyl or --SO 3 M; R 2 is hydrogen or --SO 3 M; R 3 is C 4 -C 18 alkyl and M is hydrogen, an alkali metal, ammonium, monoethanol ammonium, diethanol ammonium, or triethanol ammonium, provided that when R includes --SO 3 M, R 1 and R 2 are not --SO 3 M, and when R does not include --SO 3 M, one of R 1 and R 2 is --SO 3 M.
Claim 2
Dependent Claim
92 words
An azo compound of the formula: ##STR32## wherein R is of the formula: ##STR33## R 1 is hydrogen, methyl or --SO 3 M; R 2 is hydrogen or --SO 3 M; R 3 is C 4 -C 18 alkyl and M is hydrogen, an alkali metal, ammonium, monoethanol ammonium, diethanol ammonium, or triethanol ammonium, provided that when R includes --SO 3 M, R 1 and R 2 are not --SO 3 M, and when R does not include --SO 3 M, one of R 1 and R 2 is --SO 3 M.
Claim 3
Dependent Claim
22 words
The azo compound according to claim 1, wherein R is of the formula: ##STR34## wherein M is the same as defined above.
Claim 4
Dependent Claim
16 words
The azo compound according to claim 1, wherein R 3 is n-octyl, n-nonyl, n-dodecyl or isododecyl.
Claim 5
Dependent Claim
16 words
The azo compound according to claim 2, wherein R 3 is n-octyl, n-nonyl, n-dodecyl or isododecyl.
Claim 6
Dependent Claim
32 words
The azo compound according to claim 1, wherein R is of the formula: ##STR35## and R 1 is of the formula: --SO 3 M wherein M is the same as defined above.
Claim 7
Dependent Claim
23 words
The azo compound according to claim 1, wherein M is an alkali metal selected from the group consisting of sodium, potassium and lithium.
Claim 8
Dependent Claim
11 words
The azo compound according to claim 1, wherein M is hydrogen.
Claim 9
Dependent Claim
102 words
A solution type composition comprising an azo compound of the formula: ##STR36## wherein R is of the formula: ##STR37## R 1 is hydrogen, methyl or --SO 3 M; R 2 is hydrogen or --SO 3 M; R 3 is C 4 -C 18 alkyl and M is hydrogen, an alkali metal, ammonium, monoethanol ammonium, diethanol ammonium or triethanol ammonium, provided that when R includes --SO 3 M, R 1 and R 2 are not --SO 3 M, and when R does not include --SO 3 M, one of R 1 and R 2 is --SO 3 M; a hydrophilic solvent and water.
Claim 10
Dependent Claim
102 words
A solution type composition comprising an azo compound of the formula: ##STR36## wherein R is of the formula: ##STR37## R 1 is hydrogen, methyl or --SO 3 M; R 2 is hydrogen or --SO 3 M; R 3 is C 4 -C 18 alkyl and M is hydrogen, an alkali metal, ammonium, monoethanol ammonium, diethanol ammonium or triethanol ammonium, provided that when R includes --SO 3 M, R 1 and R 2 are not --SO 3 M, and when R does not include --SO 3 M, one of R 1 and R 2 is --SO 3 M; a hydrophilic solvent and water.
Claim 11
Dependent Claim
32 words
The solution type composition according to claim 8, wherein R is of the formula: ##STR38## wherein M is the same as defined above, and R 3 is n-octyl, n-nonyl, n-dodecyl or isododecyl.
Claim 12
Dependent Claim
30 words
The solution type composition according to claim 8, wherein the amount of the azo compound is 1 to 15 parts by weight per 100 parts by weight of the composition.
Claim 13
Dependent Claim
28 words
The solution type composition according to claim 8, which comprises 10 to 80 parts by weight of the hydrophilic solvent per 100 parts by weight of the composition.
Claim 14
Dependent Claim
27 words
The solution type composition according to claim 8, wherein the hydrophilic solvent is at least one selected from the group consisting of polyhydric alcohols, cellosolves and carbitols.
Claim 15
Dependent Claim
16 words
The solution type composition according to claim 8, which is a composition for ink jet printing.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-03-29 | 1991-09-28 | 1992-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-29 | 1995-09-28 | 1996-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-29 | 1999-09-28 | 2000-03-29 | $7700.00 | Window Closed / Lapsed |