CA1132908A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
High internal phase emulsions
Assignee: Unilever PLC
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Filing: 1979-09-24
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Granted: 1982-10-05
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Expires: 1999-09-24
Abstract
Abstract ABSTRACT OF THE DISCLOSURE An improved high-internal-phase emulsion having increased stability under conditions of long term storage at elevated temperatures and freeze-thaw conditions, methods for preparing and stabilizing said emulsions and cosmetic preparations based thereon are disclosed. The improvement comprises incorporating into said emulsion an amount sufficient to increase the stability of said emulsion of an electrolyte contained in the aqueous phase of the emulsion.
Inventors
- 👤 Michael P. Aronson
- 👤 Michael F. Petko
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-06 09:48
CPC Classifications
—
Claims Analysis
Total Claims: 44
Claim 1
Independent Claim
53 words
An improved high-internal-phase emulsion of the type comprising an aqueous phase, an oil phase and an emulsifier, the improvement comprising: an amount sufficient to increase the stability of said emulsion of an electrolyte chosen from potassium sulphate and magnesium sulphate contained in said aqueous phase thereby providing for increased stability of said emulsion.
Claim 2
Dependent Claim
53 words
An improved high-internal-phase emulsion of the type comprising an aqueous phase, an oil phase and an emulsifier, the improvement comprising: an amount sufficient to increase the stability of said emulsion of an electrolyte chosen from potassium sulphate and magnesium sulphate contained in said aqueous phase thereby providing for increased stability of said emulsion.
Claim 3
Dependent Claim
19 words
An improved high-internal-phase emulsion according to claim 1, wherein the internal phase of said emulsion is said aqueous phase.
Claim 4
Dependent Claim
32 words
An improved high-internal-phase emulsion according to claim 2, wherein said emulsifier is present at a level of about 5 to about 30 percent by weight of the external phase of said emulsion.
Claim 5
Dependent Claim
32 words
An improved high-internal-phase emulsion according to claim 3, wherein said emulsifier is present at a level of about 7 to about 30 percent by weight of the external phase of said emulsion.
Claim 6
Dependent Claim
32 words
An improved high-internal-phase emulsion according to claim 4, wherein said emulsifier is present at a level of about 10 to about 20 percent by weight of the external phase of said emulsion.
Claim 7
Dependent Claim
34 words
An improved high-internal-phase emulsion according to claim 2, wherein said electrolyte is present at a level of about 0.001 to about 10 percent by weight of said aqueous phase. - 59 - J.364 CA
Claim 8
Dependent Claim
29 words
An improved high-internal-phase emulsion according to claim 6, wherein said electrolyte is present at a level of about 0.01 to about 10 percent by weight of said aqueous phase.
Claim 9
Dependent Claim
29 words
An improved high-internal-phase emulsion according to claim 7, wherein said electrolyte is present at a level of about 1 to about 6 percent by weight of said aqueous phase.
Claim 10
Dependent Claim
29 words
An improved high-internal-phase emulsion according to claim 8, wherein said electrolyte is present at a level of about 2 to about 4 percent by weight of said aqueous phase.
Claim 11
Dependent Claim
19 words
An improved high-internal-phase emulsion according to claim 1, wherein the internal phase of said emulsion is said oil phase.
Claim 12
Dependent Claim
32 words
An improved high-internal-phase emulsion according to claim 10, wherein said emulsifier is present at a level of about 5 to about 30 percent by weight of the external phase of said emulsion.
Claim 13
Dependent Claim
32 words
An improved high-internal-phase emulsion according to claim 11, wherein said emulsifier is present at a level of about 7 to about 30 percent by weight of the external phase of said emulsion.
Claim 14
Dependent Claim
32 words
An improved high-internal-phase emulsion according to claim 12, wherein said emulsifier is present at a level of about 10 to about 20 percent by weight of the external phase of said emulsion.
Claim 15
Dependent Claim
34 words
An improved high-internal-phase emulsion according to claim 11, wherein said electrolyte is present at a level of about 0.001 to about 10 percent by weight of said aqueous phase. - 60 - J.364 CA
Claim 16
Dependent Claim
29 words
An improved high-internal-phase emulsion according to claim 14, wherein said electrolyte is present at a level of about 0.01 to about 10 percent by weight of said aqueous phase.
Claim 17
Dependent Claim
29 words
An improved high-internal-phase emulsion according to claim 15, wherein said electrolyte is present at a level of about 1 to about 6 percent by weight of said aqueous phase.
Claim 18
Dependent Claim
28 words
An improved high-internal-phase emulsion according to claim 16, wherein said electrolyte is present at a level of about 2 to 4 percent by weight of said aqueous phase.
Claim 19
Dependent Claim
38 words
An improved high-internal-phase emulsion according to claim 2, further comprising an amount sufficient to provide a moisturizing effect to the skin when said emulsion is contacted to said emulsion is contacted to said skin of a skin moisturizer.
Claim 20
Dependent Claim
33 words
An improved high-internal-phase emulsion according to claim 10, further comprising an amount sufficient to provide a moisturizing effect to the skin when said emulsion is contacted to said skin, of a skin moisturizer.
Claim 21
Dependent Claim
32 words
An improved high-internal-phase emulsion according to claim 2, further comprising an amount sufficient to provide a sunscreening effect when said emulsion is contacted to the skin or hair, of a sunscreen agent.
Claim 22
Dependent Claim
32 words
An improved high-internal-phase emulsion according to claim 10, further comprising an amount sufficient to provide a sunscreening effect when said emulsion is contacted to the skin or hair, of a sunscreen agent.
Claim 23
Dependent Claim
26 words
An improved high-internal-phase emulsion according to claim 2, further comprising an amount sufficient to provide - 61 - J.364 CA antibacterial activity of an antibacterial agent.
Claim 24
Dependent Claim
21 words
An improved high-internal-phase emulsion according to claim 10, further comprising an amount sufficient to provide antibacterial activity of an antibacterial agent.
Claim 25
Dependent Claim
28 words
An improved high-internal-phase emulsion according to claim 2, further comprising an amount sufficient to provide deodorant activity when said emulsion is applied to the skin of a deodorant.
Claim 26
Dependent Claim
28 words
An improved high-internal-phase emulsion according to claim 10, further comprising an amount sufficient to provide deodorant activity when said emulsion is applied to the skin of a deodorant.
Claim 27
Dependent Claim
18 words
An improved high-internal-phase emulsion according to claim 2, further comprising an amount sufficient to provide antiperspirant active material.
Claim 28
Dependent Claim
30 words
An improved high-internal-phase emulsion according to claim 10, further comprising an amount sufficient to provide antiperspirant activity when said emulsion is applied to the skin of an antiperspirant active material.
Claim 29
Dependent Claim
22 words
An improved high-internal-phase emulsion according to claim 2, further comprising an amount sufficient to provide a therapeutic effect of a therapeutic agent.
Claim 30
Dependent Claim
22 words
An improved high-internal-phase emulsion according to claim 10, further comprising an amount sufficient to provide a therapeutic effect of a therapeutic agent.
Claim 31
Dependent Claim
22 words
An improved high-internal-phase emulsion according to claim 2, further comprising solid particulate matter suspended in said emulsion. - 62 - J.364 CA
Claim 32
Dependent Claim
30 words
An improved high-internal-phase emulsion according to claim 30, wherein said solid particulate matter is selected from the group consisting of: i) abrasives; ii) pigments; iii) opacifiers; and iv) mixtures thereof.
Claim 33
Dependent Claim
18 words
An improved high-internal phase emulsion according to claim 10, further comprising solid particulate matter suspended in said emulsion.
Claim 34
Dependent Claim
29 words
An improved high-internal-phase emulsion according to claim 32, wherein said particulate matter is selected from the group consisting of: i) abrasives; ii) pigments; iii) opacifiers; and iv) mixtures thereof.
Claim 35
Dependent Claim
45 words
An improved high-internal-phase emulsion according to claim 2, further comprising a cleansing agent selected from the group consisting of: i) anionic surface active agents; ii) nonanionic surface active agents; iii) cationic surface active agents; iv) zwitterionic surface active agents; v) soap; and vi) mixtures thereof.
Claim 36
Dependent Claim
50 words
An improved high-internal-phase emulsion according to claim 10, further comprising a cleansing agent selected from the group consisting of: i) anionic surface active agents; ii) nonanionic surface active agents; iii) cationic surface active agents; - 63 - J.364 CA iv) zwitterionic surface active agents; v) soap; and vi) mixtures thereof.
Claim 37
Dependent Claim
14 words
An improved high-internal-phase emulsion according to claim 2, further comprising water soluble polymeric materials.
Claim 38
Dependent Claim
32 words
An improved high-internal-phase emulsion according to claim 36, wherein said water soluble polymeric material is selected from the group consisting of: i) facial mask polymeric materials; and ii) hair spray polymeric materials.
Claim 39
Dependent Claim
26 words
An improved high-internal-phase emulsion according to claim 2, further comprising at least one ingredient selected from the group consisting of: i) perfume; and ii) coloring agents.
Claim 40
Dependent Claim
26 words
An improved high-internal-phase emulsion according to claim 10, further comprising at least one ingredient selected from the group consisting of: i) perfume; and ii) coloring agents.
Claim 41
Dependent Claim
99 words
An improved process for preparing a high-internal-phase emulsion of the type defined in claim 1, comprising an aqueous phase, an oil phase and an emulsifier and prepared by the steps comprising: i) dissolving said emulsifier in oil to provide said oil phase; and ii) homogenizing said oil phase with said aqueous phase to provide said high-internal-phase emulsion; the improvement comprising: - 64 - J.364 CA i) dissolving an amount sufficient to increase the stability of said emulsion of an electrolyte chosen from potassium sulphate and magnesium sulphate in said aqueous phase thereby providing for increased stability of said emulsion.
Claim 42
Dependent Claim
18 words
An improved process according to claim 40, wherein the internal phase of said emulsion is said aqueous phase.
Claim 43
Dependent Claim
51 words
An improved process according to claim 41, wherein i) said emulsifier is present at a level of about 30 percent by weight of the external phase of said emulsion; and ii) said electrolyte is present at a level of about 0.001 to about 10 percent by weight of said aqueous phase.
Claim 44
Dependent Claim
64 words
An improved process according to claim 40, wherein: i) the internal phase of said emulsion is said oil phase; ii) said emulsifier is present at a level of about 5 to about 30 percent by weight of external phase of said emulsion; and iii) said electrolyte is present at a level of about 0.001 to about 10 percent by weight of said aqueous phase.
References Cited (Backward Citations)
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