US3993789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Red pigment and process
Assignee: Nestec SA
•
Filing: 1975-10-16
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Granted: 1976-11-23
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Expires: 1995-10-16
Abstract
Abstract A red colorant having the general formula ##SPC1## In which R represents an aliphatic radical, and R' represents the radical of a compound of the formula H 2 N--R', which compound is an amino sugar, a polymer of an amino sugar, a polyamino acid or an amino alcohol.
Inventors
- 👤 Hans Rudolf Moll
- 👤 David Robert Farr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:25
CPC Classifications
C; C09; C09B; C09B57/00; A; A23; A23J; A23J3/00; A23J3/22; A23J3/225; A23J3/227; A23L; A23L5/00; A23L5/40; A23L5/42; A23L5/46; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/911
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
48 words
A red colorant having the general formula ##SPC5## in which R represents an aliphatic radical, and R' represents the radical of a compound of the formula H 2 N--R', which compound is an amino sugar, a polymer of an amino sugar, a polyamino acid or an amino alcohol.
Claim 2
Dependent Claim
48 words
A red colorant having the general formula ##SPC5## in which R represents an aliphatic radical, and R' represents the radical of a compound of the formula H 2 N--R', which compound is an amino sugar, a polymer of an amino sugar, a polyamino acid or an amino alcohol.
Claim 3
Dependent Claim
25 words
A red colorant as claimed in claim 1, wherein R' represents the radical of chitosane where chitosane is expressed by the formula H 2 N--R'.
Claim 4
Dependent Claim
25 words
A red colorant as claimed in claim 1, wherein R' represents the radical of ethanolamine where ethanolamine is expressed by the formula H 2 N--R'.
Claim 5
Dependent Claim
27 words
A red colorant as claimed in claim 1, wherein R' represents the radical of a hexosamine where the hexosamine is expressed by the formula H 2 N--R'.
Claim 6
Dependent Claim
25 words
A red colorant as claimed in claim 1, wherein R' represents the radical of glucosamine where glucosamine is expressed by the formula H 2 N--R'.
Claim 7
Dependent Claim
25 words
A red colorant as claimed in claim 1, wherein R' represents the radical of galactosamine where galactosamine is expressed by the formula H 2 N--R'.
Claim 8
Dependent Claim
57 words
A process for the preparation of a colorant as defined in claim 1 from a pigment of a microorganism of the genus Monascus, which comprises reacting an orange-yellow Monascus pigment with a reactive substance which is an amino sugar, a polymer of an amino sugar, a polyamino acid or an aminoalcohol, to form a red-coloured chemical compound.
Claim 9
Dependent Claim
13 words
A process as claimed in claim 7, wherein the reactive substance is chitosane.
Claim 10
Dependent Claim
13 words
A process as claimed in claim 7, wherein the active substance is ethanolamine.
Claim 11
Dependent Claim
14 words
A process as claimed in claim 7, wherein the reactive substance is a hexosamine.
Claim 12
Dependent Claim
13 words
A process as claimed in claim 7, wherein the reactive substance is glucosamine.
Claim 13
Dependent Claim
13 words
A process as claimed in claim 7, wherein the reactive substance is galactosamine.
Claim 14
Dependent Claim
20 words
A method of colouring a foodstuff which comprises adding to the foodstuff a red colorant as claimed in claim 1.
References Cited (Backward Citations)
US3765906A
Cited
US3911141A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-11-23 | 1980-05-24 | 1980-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-23 | 1984-05-24 | 1984-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-23 | 1988-05-24 | 1988-11-23 | $7700.00 | Window Closed / Lapsed |