US3655406A
Expired / Lapsed
US
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Carotenoid compositions
Assignee: F Hoffmann La Roche AG
•
Filing: 1970-02-02
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Granted: 1972-04-11
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Expires: 1990-02-02
Abstract
Abstract Carotenoid compositions dispersed in a hydrophilic, organic colloid such as gelatin which is distributed on the particles of a pulverulent carrier material such as starch which has a lipophilic surface.
Inventors
- 👤 Heinrich Klaui
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:31
CPC Classifications
C; C09; C09B; C09B61/00; A; A23; A23L; A23L5/00; A23L5/40; A23L5/42; A23L5/43; A23L5/44; A61; A61K; A61K8/00; A61K8/02; A61K8/11; A61K8/18; A61K8/30; A61K8/31; A61Q; A61Q1/00; A61Q1/02; A61Q1/04; A61Q1/06; A61K2800/00; A61K2800/40; A61K2800/41; A61K2800/412
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
29 words
A carotenoid composition in accordance with claim 1 wherein said pulverulent carrier material has a particle size in the range of from about 5 microns to about 20 microns.
Claim 2
Dependent Claim
32 words
A carotenoid composition in accordance with claim 1 wherein said water-insoluble pulverulent carrier material having a lipophilic surface is a starch selected from the group consisting of rice, wheat and maize starches.
Claim 3
Dependent Claim
35 words
A carotenoid composition in accordance with claim 1 wherein the surface of said water-insoluble pulverulent carrier material contains a lipophilic anion-active compound selected from the group consisting of stearic acid, palmitic acid and palmitoyl-ascorbic acid.
Claim 4
Dependent Claim
36 words
A carotenoid composition in accordance with claim 1 wherein the surface of said water-insoluble pulverulent carrier material contains a lipophilic catioN-active compound selected from the group consisting of dimethyl-stearyl-benzylammonium chloride, cetyl-ethyl-dimethyl ammonium bromide and dodecyl-dimethyl-(2-phenoxyethyl)-ammonium bromide.
Claim 5
Dependent Claim
32 words
A carotenoid composition in accordance with claim 1 wherein the surface of said water-insoluble pulverulent carrier material contains a lipophilic film-forming polymeric material selected from the group consisting of polyalkylsiloxanes and polyarylsiloxanes.
Claim 6
Dependent Claim
40 words
A carotenoid composition in accordance with claim 1 wherein said carotenoid is selected from the group consisting of Beta -carotene, Beta -apo-8''-carotenic acid (C30) ethyl ester, canthaxanthin, Beta -apo-8''-carotenal (C30), echinenone, lycopene, citranaxanthin, torularhodinaldehyde, torularhodin ethyl ester, spirilloxanthin and 2,2''-diketospirilloxanthin.
Claim 7
Dependent Claim
34 words
A carotenoid composition in accordance with claim 1 wherein said hydrophilic, film-forming organic colloid is selected from the group consisting of gelatin, dextrin, gum arabic, sugar fatty acid esters, methylcellulose, polyvinyl alcohol and polyvinylpyrrolidone.
Claim 8
Dependent Claim
19 words
A carotenoid composition in accordance with claim 8 wherein said hydrophilic, film-forming organic colloid also contains an emulsifying agent.
Claim 9
Dependent Claim
63 words
A process for the preparation of a carotenoid composition which comprises applying to the surface of a water-insoluble pulverulent carrier material having a particle size range of from 1 micron to about 50 microns, a lipophilic surface a solution of a carotenoid material comprising a carotenoid having a particle size of less than one micron dispersed in a hydrophilic film-forming organic colloid material.
Claim 10
Dependent Claim
24 words
A process in accordance with claim 10 wherein the carotenoid composition is additionally dried to a solid mass and ground to a fine powder.
Claim 11
Dependent Claim
80 words
A process in accordance with claim 10 wherein said water-insoluble pulverulent carrier material having a lipophilic surface is a product formed by the treatment of a starch selected from the group consisting of rice, wheat and maize starches, with dimethyl-stearyl-benzyl-ammonium chloride, said hydrophilic, film-forming colloid is gelatin and said carotenoid is selected from the group consisting of Beta -carotene, Beta -apo-8''-carotenic acid (C30) ethyl ester, canthaxanthin, Beta -apo-8''-carotenal (C30), echinenone, lycopene, citranaxanthin, torularhodin aldehyde, torularhodin ethyl ester, spirilloxanthin and 2,2''-diketospirilloxanthin.
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) | 1975-04-11 | 1975-10-11 | 1976-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-11 | 1979-10-11 | 1980-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-11 | 1983-10-11 | 1984-04-11 | $7700.00 | Window Closed / Lapsed |