US4234450A
Expired / Lapsed
US
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Preparation of non-fluidizable composition
Assignee: Rohto Pharmaceutical Co Ltd
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Filing: 1978-03-09
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Granted: 1980-11-18
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Expires: 1998-03-09
Abstract
Abstract A non-fluidizable composition readily convertible into a fluidizable composition by slight stress or pressure, which can be prepared by cooling an emulsion comprisinng a water-immiscible fatty acid, water and an emulsifier from a temperature sufficient to keep the emulsion at a fluidizable state while stirring, stopping the stirring at a temperature not lower than the temperature 5 DEG C. below the congealing temperature of the emulsion and further continuing the cooling to room temmperature and is useful as a base for shaving creams, hair creams, adhesive pastes, printers' inks, shoe polishes, etc.
Inventors
- 👤 Masami Hirayama
- 👤 Tadataka Nakata
- 👤 Michiko Kagayama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:44
CPC Classifications
A; A61; A61Q; A61Q19/00; A61K; A61K8/00; A61K8/02; A61K8/0216; A61K8/0229; A61K8/18; A61K8/30; A61K8/33; A61K8/36; A61K8/361; A61K8/49; A61K8/4993; A61Q5/00; A61Q5/06; A61Q9/00; A61Q9/02; B; B01; B01J; B01J13/00; B01J13/0073; B01J13/0082; C; C09; C09D; C09D11/00; C09D11/02; C09D11/06; Y; Y10; Y10S; Y10S424/00; Y10S424/05; Y10S516/00; Y10S516/902; Y10S516/924; Y10S516/926
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
125 words
A process for preparing a non-fluidizable composition readily convertible into a fluidizable composition by slight stress or pressure, which comprises the steps of cooling an emulsion consisting essentially of a water-immiscible saturated fatty acid, water within a range of from 60-80% by weight of the emulsion, and an emulsifier selected from the group consisting of a non-ionic surfactant, a solubilizing aid and a mixture thereof, said solubilizing aid being selected from the group consisting of a hydroxy group-containing amine and an alkali hydroxide from a temperature sufficient to keep the emulsion in a fluidizable state while stirring, stopping the stirring at a temperature not lower than the temperature 50° C. below the congealing temperature of the emulsion and continuing further the cooling to room temperature.
Claim 2
Dependent Claim
125 words
A process for preparing a non-fluidizable composition readily convertible into a fluidizable composition by slight stress or pressure, which comprises the steps of cooling an emulsion consisting essentially of a water-immiscible saturated fatty acid, water within a range of from 60-80% by weight of the emulsion, and an emulsifier selected from the group consisting of a non-ionic surfactant, a solubilizing aid and a mixture thereof, said solubilizing aid being selected from the group consisting of a hydroxy group-containing amine and an alkali hydroxide from a temperature sufficient to keep the emulsion in a fluidizable state while stirring, stopping the stirring at a temperature not lower than the temperature 50° C. below the congealing temperature of the emulsion and continuing further the cooling to room temperature.
Claim 3
Dependent Claim
25 words
The process according to claim 1, wherein the concentration of the saturated fatty acid in the emulsion is from about 10 to 50% by weight.
Claim 4
Dependent Claim
23 words
The process according to claim 2, wherein the concentration of the emulsifier in the emulsion is from about 1 to 5% by weight.
Claim 5
Dependent Claim
21 words
The process according to claim 2, wherein the concentration of the emulsifier in the emulsion is from about 1.2-3.2% by weight.
Claim 6
Dependent Claim
22 words
The process according to claim 1, wherein the saturated fatty acid is a saturated fatty acid having 12 to 18 carbon atoms.
Claim 7
Dependent Claim
29 words
The process according to claim 5, wherein the saturated fatty acid is a member selected from the group consisting of lauric acid, myristic acid, palmitic acid and stearic acid.
Claim 8
Dependent Claim
35 words
The process according to claim 1, wherein the non-ionic surfactant is a member selected from the group consisting of polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan monooleate, polyoxyethylene stearate, polyoxyethylene cetyl alcohol ether and polyoxyethylene nonylphenyl ether.
Claim 9
Dependent Claim
12 words
The process according to claim 1, wherein the solubilizing aid is ethanolamine.
Claim 10
Dependent Claim
18 words
The process according to claim 1, wherein the emulsifier is a mixture of the non-ionic surfactant and ethanolamine.
Claim 11
Dependent Claim
25 words
The process according to claim 1, wherein the temperature from which the initial cooling with stirring is started is from about 50° to 80° C.
Claim 12
Dependent Claim
25 words
The process according to claim 1, wherein the temperature from which the subsequent cooling without stirring is started is from about 40° to 60° C.
Claim 13
Dependent Claim
17 words
The process according to claim 1, wherein the emulsion to be cooled is charged in a container.
Claim 14
Dependent Claim
23 words
The process according to claim 1, wherein the emulsion after the initial cooling and before the subsequent cooling is charged in a container.
Claim 15
Dependent Claim
23 words
The process according to claim 13, wherein the container has a cylindrical form suitable for making the non-fluidizable composition in a stick form.
Claim 16
Dependent Claim
27 words
The process according to claim 1, further comprising initially forming said emulsion from said fatty acid, water and said emulsifier at a temperature of from 50°-80° C.
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) | 1983-11-18 | 1984-05-19 | 1984-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-18 | 1988-05-19 | 1988-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-18 | 1992-05-19 | 1992-11-18 | $7700.00 | Window Closed / Lapsed |