US4091004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triazine dyes reactive through their phosphorus acid groups
Assignee: Burlington Industries Inc
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Filing: 1976-07-30
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Granted: 1978-05-23
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Expires: 1996-07-30
Abstract
Abstract A novel class of dyes are disclosed of the formula: ##STR1## where D represents a chromophore and R represents a phosphonic or a phosphoric group. These acid groups serve both as water-solubilizing and as reactive groups to bond the dyes covalently to cellulosic substrates.
Inventors
- 👤 Bobby Lee McConnell
- 👤 Raymond Thornton
- 👤 Louis Atkins Graham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:26
CPC Classifications
C; C09; C09B; C09B69/00; C09B69/007
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
50 words
A dye of the formula: ##STR14## wherein: D represents chromophore and each of R and R' is in the meta or para position and is defined as a --PO(OH) 2 or --O--PO(OH) 2 wherein the dye is in the free acid, alkali metal salt, ammonium or acid ammonium salt form.
Claim 2
Dependent Claim
50 words
A dye of the formula: ##STR14## wherein: D represents chromophore and each of R and R' is in the meta or para position and is defined as a --PO(OH) 2 or --O--PO(OH) 2 wherein the dye is in the free acid, alkali metal salt, ammonium or acid ammonium salt form.
Claim 3
Dependent Claim
19 words
The dye according to claim 1, wherein the definition of R is the same as the definition of R'.
Claim 4
Dependent Claim
46 words
The dye according to claim 1, wherein R and R' are in the same position, in that if R is in the meta position, then R' is in the meta position, and if R is in the para position, then R' is in the para position.
Claim 5
Dependent Claim
15 words
A dye of the formula: ##STR15## wherein: D represents a chromophore, and X is ##STR16##
Claim 6
Dependent Claim
15 words
A dye of the formula: ##STR15## wherein: D represents a chromophore, and X is ##STR16##
Claim 7
Dependent Claim
10 words
The dye according to claim 4 of the formula: ##STR17##
Claim 8
Dependent Claim
10 words
The dye according to claim 4 of the formula: ##STR18##
Claim 9
Dependent Claim
10 words
The dye according to claim 4 of the formula: ##STR19##
Claim 10
Dependent Claim
15 words
A dye of the formula: ##STR20## wherein: D represents a chromophore and Y is ##STR21##
Claim 11
Dependent Claim
15 words
A dye of the formula: ##STR20## wherein: D represents a chromophore and Y is ##STR21##
Claim 12
Dependent Claim
10 words
The dye according to claim 8 of the formula: ##STR22##
Claim 13
Dependent Claim
10 words
The dye according to claim 8 of the formula: ##STR23##
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) | 1981-05-22 | 1981-11-21 | 1982-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-22 | 1985-11-21 | 1986-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-22 | 1989-11-21 | 1990-05-23 | $7700.00 | Window Closed / Lapsed |