US4549990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of non-saponifiable compounds from natural substances and the resulting products
Assignee: DITE EXSYMOL SAM Ste
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Filing: 1983-04-25
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Granted: 1985-10-29
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Expires: 2003-04-25
Abstract
Abstract Production of non-saponifiable compounds from natural substances such as plants, mushroom mycelium or bacteria, by extraction by means of an organic solvent. The solvent is an aliphatic or aryl ester, the molecule of which comprises at least 10 carbon atoms and preferably more than 12 carbon atoms.
Inventors
- 👤 Marie-Christine Seguin
- 👤 Jean Gueyne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:45
CPC Classifications
A; A61; A61Q; A61Q19/00; A61K; A61K36/00; A61K36/06; A61K36/062; A61K36/064; A61K36/18; A61K36/185; A61K36/30; A61K36/31; A61K36/348; A61K36/3486; A61K36/71; A61K36/74; A61K36/742; A61K36/76; A61K8/00; A61K8/18; A61K8/92; A61K8/922; A61K8/96; A61K8/97; A61K8/9728
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
49 words
Improved process for obtaining liposoluble non-saponifiable compounds selected from the group consisting of sterols, terpenes and hydrocarbons from natural substances, by extraction by means of an organic solvent, characterized in that the solvent is an aliphatic or aryl ester, the molecule of which comprises at least 10 carbon atoms.
Claim 2
Dependent Claim
49 words
Improved process for obtaining liposoluble non-saponifiable compounds selected from the group consisting of sterols, terpenes and hydrocarbons from natural substances, by extraction by means of an organic solvent, characterized in that the solvent is an aliphatic or aryl ester, the molecule of which comprises at least 10 carbon atoms.
Claim 3
Dependent Claim
18 words
Process according to claim 1, characterized in that the solvent is a C 14 to C 38 ester.
Claim 4
Dependent Claim
41 words
Process according to claim 1 or 2, characterized in that the solvent is an aliphatic ester of a C 6 to C 30 saturated or unsaturated fatty acid, the alcohol residue of the ester containing C 1 to C 18 .
Claim 5
Dependent Claim
21 words
Process according to claim 3, characterized in that the alcohol residue of the ester contains C 1 to C 8 .
Claim 6
Dependent Claim
18 words
Process according to claim 4, characterized in that the acid residue of the ester carries an epoxy group.
Claim 7
Dependent Claim
17 words
Process according to either of claims 1 or 2, characterized in that the ester is a phthalate.
Claim 8
Dependent Claim
63 words
Process according to claim 1, in which the natural substance is treated with a standard light solvent in order to extract the non-saponfiable compounds after which the light solvent is separated and evaporated, characterized in that the residue from this evaporation is taken up in an ester containing at least 10 carbon atoms in its molecule and is then separated from this ester.
Claim 9
Dependent Claim
26 words
Process according to claim 7, characterized in that separation of the non-saponfiable compound is effected by treatment of the ester containing it with a non-solvent liquid.
Claim 10
Dependent Claim
12 words
Process according to claim 8, characterized in that the non-solvent is methanol.
Claim 11
Dependent Claim
39 words
Process according to claim 1, characterized in that the natural substance is mixed with the ester at a temperature of 0° to 150° C., after which the ester is separated and cooled to effect precipitation of the non-saponifiable compounds.
Claim 12
Dependent Claim
27 words
Process according to claim 8, characterized in that the ester is treated with methanol after its separation from the natural substance and the precipitate formed is recovered.
Claim 13
Dependent Claim
34 words
Process according to claim 1, characterized in that the solvent is selected from the group consisting of octyl epoxy-stearate, n-butyl laurate, ethyl deconoate, methyl stearate, methyl palmitate, isopropyl myristate, dimethyl orthophthalate and glycerol mono-ricinoleate.
Claim 14
Dependent Claim
27 words
Process according to claim 7 in which the light solvent is selected from the group consisting of ethyl ether, petroleum ether, chloroform, methylene chloride, dichloroethane and trichloroethylene.
Claim 15
Dependent Claim
23 words
Process according to claim 1, in which the non-saponifiable compound is separated by treatment of the ester containing it with a nonsolvent liquid.
Claim 16
Dependent Claim
11 words
Process according to claim 14 in which the nonsolvent is methanol.
Claim 17
Dependent Claim
31 words
Process according to claim 1 in which the natural substance is treated with a mixture of a standard light solvent and the ester, and wherein the light solvent is thereafter evaporated.
Claim 18
Dependent Claim
26 words
Process according to claim 16 wherein the light solvent is selected from the group consisting of ethyl ether, petroleum ether, chloroform, methylene chloride, dichloroethane, and trichloroethylene.
Claim 19
Dependent Claim
24 words
The process according to claim 16 in which the non-saponifiable compound is separated by treatment of the ester containing it with a nonsolvent liquid.
Claim 20
Dependent Claim
10 words
Process according to claim 18 wherein the nonsolvent is methanol.
Claim 21
Dependent Claim
40 words
Process according to claim 1 in which 0.2-5 parts of ester per part of liposoluble non-saponifiable compound is heated with the natural substance at 50°-180° C. and thereafter the ester containing dissolved non-saponifiable compound is separated from the natural substance.
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) | 1988-10-28 | 1989-04-29 | 1989-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-28 | 1993-04-29 | 1993-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-28 | 1997-04-29 | 1997-10-29 | $7700.00 | Window Closed / Lapsed |