US4182885A
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Red colors
Assignee: Dynapol Shareholders Liquidating Trust
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Filing: 1976-12-17
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Granted: 1980-01-08
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Expires: 1996-12-17
Abstract
Abstract Red colors having the anthraquinone structure ##STR1## are disclosed wherein R 1 and R 2 are independently selected from among hydrogen, halos, lower alkyls, lower alkoxies, nitros, and sulfonates, and R 3 and R 4 are independently selected from hydrogens, alkyls and alkylsulfonates. Precursors are disclosed as well. In a preferred embodiment R 4 is an alkyl-containing polymer linking a plurality of anthraquinones into a polymeric colorant especially useful as a nonabsorbable colorant for edibles.
Inventors
- 👤 Leonard A. Bunes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:43
CPC Classifications
C; C09; C09B; C09B69/00; C09B69/10; C09B69/101; A; A23; A23L; A23L5/00; A23L5/40; A23L5/42; A23L5/47; C09B1/00; C09B1/16; C09B1/20; C09B5/00; C09B5/02; C09B5/14; C01; C01P; C01P2004/00; C01P2004/60; C01P2004/61; C01P2004/62; C01P2004/80
Claims Analysis
Total Claims: 40
Claim 1
Independent Claim
81 words
A monomeric colorant of the formula ##STR53## wherein R 1 and R 2 are independently selected from the group consisting of hydrogen, halos of atomic number 9 through 53, inclusive, lower alkyls and lower alkoxies of from 1 to 3 carbon atoms, nitros, and sulfonates and wherein R 3 and R 4 independently are selected from the group consisting of hydrogen, lower alkyls of from 1 to 4 carbon atoms and lower alkyl sulfonates of from 1 to 4 carbon atoms.
Claim 2
Dependent Claim
81 words
A monomeric colorant of the formula ##STR53## wherein R 1 and R 2 are independently selected from the group consisting of hydrogen, halos of atomic number 9 through 53, inclusive, lower alkyls and lower alkoxies of from 1 to 3 carbon atoms, nitros, and sulfonates and wherein R 3 and R 4 independently are selected from the group consisting of hydrogen, lower alkyls of from 1 to 4 carbon atoms and lower alkyl sulfonates of from 1 to 4 carbon atoms.
Claim 3
Dependent Claim
10 words
The colorant of claim 1 wherein R 1 is hydrogen.
Claim 4
Dependent Claim
10 words
The colorant of claim 2 wherein R 3 is hydrogen.
Claim 5
Dependent Claim
10 words
The colorant of claim 3 wherein R 2 is hydrogen.
Claim 6
Dependent Claim
10 words
The colorant of claim 4 wherein R 4 is hydrogen.
Claim 7
Dependent Claim
10 words
The colorant of claim 4 wherein R 4 is propylsulfonate.
Claim 8
Dependent Claim
28 words
The colorant of claim 3 wherein R 2 is a halogen of atomic number 9 through 53 inclusive and R 2 is in the 2 or 4 position.
Claim 9
Dependent Claim
15 words
The colorant of claim 7 wherein R 2 is chloro and R 4 is propylsulfonate.
Claim 10
Dependent Claim
21 words
The colorant of claim 3 wherein R 2 is methoxy and R 2 is present in the 2 or 4 position.
Claim 11
Dependent Claim
10 words
The colorant of claim 9 wherein R 4 is propylsulfonate.
Claim 12
Dependent Claim
112 words
A polymeric colorant having the formula ##STR54## wherein R 1 and R 2 are independently selected from the group of hydrogen, halos of atomic number 9 through 53 inclusive, lower alkyls and lower alkoxies of from 1 to 3 carbon atoms, nitro, and sulfonate; R 3 is hydrogen or a lower alkyl of 1 to 3 carbon atoms, B is an organic polymeric backbone attached to N by a single covalent bond and characterized as having essentially no crosslinks and selected from among linear polyethyleneoxy backbones, and linear polyalkylene backbones each having a molecular weight of from about 10,000 to about 150,000 Daltons, and n is a number from 10 to 4000.
Claim 13
Dependent Claim
112 words
A polymeric colorant having the formula ##STR54## wherein R 1 and R 2 are independently selected from the group of hydrogen, halos of atomic number 9 through 53 inclusive, lower alkyls and lower alkoxies of from 1 to 3 carbon atoms, nitro, and sulfonate; R 3 is hydrogen or a lower alkyl of 1 to 3 carbon atoms, B is an organic polymeric backbone attached to N by a single covalent bond and characterized as having essentially no crosslinks and selected from among linear polyethyleneoxy backbones, and linear polyalkylene backbones each having a molecular weight of from about 10,000 to about 150,000 Daltons, and n is a number from 10 to 4000.
Claim 14
Dependent Claim
10 words
The colorant of claim 11 wherein R 1 is hydrogen.
Claim 15
Dependent Claim
12 words
The colorant of claim 12 wherein B is a linear polyoxyethylene backbone.
Claim 16
Dependent Claim
10 words
The colorant of claim 13 wherein R 2 is hydrogen.
Claim 17
Dependent Claim
10 words
The colorant of claim 13 wherein R 2 is sulfonate.
Claim 18
Dependent Claim
10 words
The colorant of claim 13 wherein R 2 is chloro.
Claim 19
Dependent Claim
10 words
The colorant of claim 13 wherein R 2 is methoxy.
Claim 20
Dependent Claim
77 words
A polymeric colorant having the formula ##STR55## wherein R 1 is hydrogen, R 2 is selected from hydrogen, halos of atomic number 9 through 53 inclusive, lower alkoxies and alkyls of 1 to 3 carbon atoms, nitro, and sulfonate, R 3 is selected from hydrogen and a lower alkyl of from 1 to 3 carbon atoms and R 6 is selected from hydrogen, acetyl sulfonate, n equals 10 to 4000 and m equals 0.3 to 5 n.
Claim 21
Dependent Claim
77 words
A polymeric colorant having the formula ##STR55## wherein R 1 is hydrogen, R 2 is selected from hydrogen, halos of atomic number 9 through 53 inclusive, lower alkoxies and alkyls of 1 to 3 carbon atoms, nitro, and sulfonate, R 3 is selected from hydrogen and a lower alkyl of from 1 to 3 carbon atoms and R 6 is selected from hydrogen, acetyl sulfonate, n equals 10 to 4000 and m equals 0.3 to 5 n.
Claim 22
Dependent Claim
10 words
The colorant of claim 18 wherein R 3 is hydrogen.
Claim 23
Dependent Claim
10 words
The colorant of claim 19 wherein R 6 is hydrogen.
Claim 24
Dependent Claim
10 words
The colorant of claim 19 wherein R 6 is acetyl.
Claim 25
Dependent Claim
10 words
The colorant of claim 19 wherein R 6 is sulfonate.
Claim 26
Dependent Claim
10 words
The colorant of claim 20 wherein R 2 is hydrogen.
Claim 27
Dependent Claim
10 words
The colorant of claim 21 wherein R 2 is hydrogen.
Claim 28
Dependent Claim
10 words
The colorant of claim 22 wherein R 2 is hydrogen.
Claim 29
Dependent Claim
12 words
The colorant of claim 22 wherein R 7 is chloro or methoxy.
Claim 30
Dependent Claim
103 words
A polymeric colorant having the formula ##STR56## wherein R 1 and R 2 are independently selected from among hydrogens, halos of atomic number 9 through 53 inclusive, lower alkyls and lower alkoxies of from 1 to 3 carbon atoms, nitro and sulfonate; R 3 is selected from hydrogen and 1 to 3 carbon lower alkyls; R 6 is hydrogen or acetyl; M is an alkali metal selected from sodium and potassium; n, m and p are numbers wherein n is from 10 to 2000, m is from 0.3 to 5 times n, and p is 0.3 to 2 times the sum of n+m.
Claim 31
Dependent Claim
103 words
A polymeric colorant having the formula ##STR56## wherein R 1 and R 2 are independently selected from among hydrogens, halos of atomic number 9 through 53 inclusive, lower alkyls and lower alkoxies of from 1 to 3 carbon atoms, nitro and sulfonate; R 3 is selected from hydrogen and 1 to 3 carbon lower alkyls; R 6 is hydrogen or acetyl; M is an alkali metal selected from sodium and potassium; n, m and p are numbers wherein n is from 10 to 2000, m is from 0.3 to 5 times n, and p is 0.3 to 2 times the sum of n+m.
Claim 32
Dependent Claim
16 words
The colorant of claim 27 wherein R 1 , R 3 and R 6 are hydrogen.
Claim 33
Dependent Claim
18 words
The colorant of claim 28 wherein R 2 is selected from chloro in the 2 or 4 position.
Claim 34
Dependent Claim
16 words
The colorant of claim 28 wherein R 2 is methoxy in the 2 or 4 position.
Claim 35
Dependent Claim
10 words
The colorant of claim 28 wherein R 2 is hydrogen.
Claim 36
Dependent Claim
66 words
The polymeric colorant having the formula ##STR57## wherein R 1 , R 2 , and R 3 are each hydrogen, R 6 is acetyl, M is an alkali metal selected from sodium and potassium; n, m and p are numbers wherein n is from 10 to 2000, m is from 0.3 to 5 times n, and p is 0.3 to 2 times the sum of n+m.
Claim 37
Dependent Claim
66 words
The polymeric colorant having the formula ##STR57## wherein R 1 , R 2 , and R 3 are each hydrogen, R 6 is acetyl, M is an alkali metal selected from sodium and potassium; n, m and p are numbers wherein n is from 10 to 2000, m is from 0.3 to 5 times n, and p is 0.3 to 2 times the sum of n+m.
Claim 38
Dependent Claim
16 words
The colorant of claim 32 wherein R 2 is chloro in the 2 or 4 position.
Claim 39
Dependent Claim
16 words
The colorant of claim 32 wherein R 2 is methoxy in the 2 or 4 position.
Claim 40
Dependent Claim
10 words
The colorant of claim 32 wherein R 2 is hydrogen.
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) | 1983-01-07 | 1983-07-09 | 1984-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-07 | 1987-07-09 | 1988-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-07 | 1991-07-09 | 1992-01-08 | $7700.00 | Window Closed / Lapsed |