Claims
- 1. A water-in-oil emulsion, comprising
(a) a fatty phase which includes
(a1) at least one oil component, and (a2) at least one wax component; (b) a water phase which includes
(b1) 30 to 85% by weight of water, and (b2) 5 to 50% by weight of at least one skin-moisturizing agent selected from the group consisting of glycerol, chitosan, Fucogel, propylene glycol, polyethylene glycol, dipropylene glycol, butylene glycol, mannitol, lactic acid, polyethylene glycol, glycine, sodium pyrrolidonecarboxylic acid, hyaluronic acid, urea and salts thereof, (c) at least one water-in-oil emulsifier selected from the group consiting of interface-active substances of the general structure A-B-A′, where A and A′ are identical or different hydrophobic organic radicals, and B is a hydrophilic group, wherein the emulsion is solid at room temperature.
- 2. The water-in-oil emulsion as claimed in claim 1, wherein the at least one water-in-oil emulsifier includes a water-in-oil emulsifier selected from the group consisting of:
(i) water-in-oil emulsifiers having the general formula 49A and A′ are identical or different hydrophobic organic radicals, a is a number from 1 to 100, X is a single bond or the group 50R1 and R2, independently of one another, are H or methyl, wherein R1 and R2 are not both methyl at the same time, R3 is selected from the group consisting of H, and branched and unbranched, saturated and unsaturated alkyl and acyl radicals having 1-20 carbon atoms; (ii) fatty alcohols having 8-30 carbon atoms, (iii) monoglycerol esters of saturated or unsaturated, branched or unbranched alkanecarboxylic acids or hydroxyalkanoic acids with a chain length of 8-24 carbon atoms, (iv) diglycerol esters of saturated or unsaturated, branched or unbranched alkanecarboxylic acids or hydroxyalkanoic acids with a chain length of 8-24 carbon atoms, (v) triglycerol esters of saturated or unsaturated, branched or unbranched alkanecarboxylic acids or hydroxyalkanoic acids with a chain length of 8-24 carbon atoms, (vi) polyglycerol esters of saturated or unsaturated, branched or unbranched alkanecarboxylic acids or hydroxyalkanoic acids with a chain length of 8-24 carbon atoms with up to 10 glycerol units, (vii) monoglycerol ethers of saturated or unsaturated, branched or unbranched alcohols with a chain length of 8-24 carbon atoms, (viii) diglycerol ethers of saturated or unsaturated, branched or unbranched alcohols with a chain length of 8-24 carbon atoms, (ix) triglycerol ethers of saturated or unsaturated, branched or unbranched alcohols with a chain length of 8-24 carbon atoms, (x) polyglycerol ethers of saturated or unsaturated, branched or unbranched alcohols with a chain length of 8-24 carbon atoms with up to 10 glycerol units, (xi) propylene glycol esters of saturated or unsaturated, branched or unbranched alkanecarboxylic acids or hydroxyalkanoic acids with a chain length of 8-24 carbon atoms, (xii) sorbitan esters of saturated or unsaturated, branched or unbranched alkanecarboxylic acids or hydroxyalkanoic acids with a chain length of 8-24 carbon atoms, (xiii) sorbitan esters of polyols, (xiv) pentaerythrityl esters of saturated or unsaturated, branched or unbranched alkanecarboxylic acids or hydroxyalkanoic acids with a chain length of 8-24 carbon atoms, (xv) methylglucose esters of saturated or unsaturated, branched or unbranched alkanecarboxylic acids or hydroxyalkanoic acids with a chain length of 8-24 carbon atoms, (xvi) polyglycerol methylglucose esters of saturated or unsaturated, branched or unbranched alkanecarboxylic acids or hydroxyalkanoic acids with a chain length of 8-24 carbon atoms, (xvii) glyceryl fatty acid citrates, (xviii) cetyl dimethicone copolyols, (xix) alkyl methicone copolyols, (xx) alkyl dimethicone ethoxyglucosides, and (xxi) water-in-oil emulsifiers described in (i)-(xx) that have been polyethoxylated, polypropoxylated or both polyethoxylated and polypropoxylated.
- 3. The water-in-oil emulsion as claimed in claim 1, wherein the water-in-oil emulsifier (c) is selected such that the radicals A and A′ are selected from the group consisting of (i) branched and unbranched, saturated and unsaturated alkyl and acyl radicals and hydroxyacyl radicals having 10-30 carbon atoms, and (ii) hydroxyacyl groups joined together via ester functions, according to the scheme
- 4. The water-in-oil emulsion as claimed in claim 1, wherein the water-in-oil emulsifier is selected from the group consisting of PEG-30 dipolyhydroxystearate, decaglyceryl heptaoleate, polyglyceryl-3 diisostearate, PEG-8 distearate, diglycerol dipolyhydroxystearate, glycerol isostearate, sorbitan isostearate, polyglyceryl-3 methylglucose distearate and steareth-2.
- 5. The water-in-oil emulsion as claimed in claim 1, wherein the at least one water-in-oil emulsifier includes a stabilizer selected from the group of substances of the general formula
- 6. The water-in-oil emulsion as claimed in claim 5, wherein the stabilizer includes a PEG-45/dodecyl glycol copolymer, a PEG-22/dodecyl glycol copolymer, a methoxy PEG-22/dodecyl glycol copolymer, or mixtures therof.
- 7. The water-in-oil emulsion as claimed in claim 1, further comprising one or more of at least one pigment, at least one dye and at least one powder substance.
- 8. The water-in-oil emulsion as claimed in claim 1, further comprising at least one anti-wrinkle substance.
- 9. The water-in-oil emulsion as claimed in claim 1, further comprising one or more of at least one UVA filter substance, at least one UVB filter substance, at least one broadband filter substance and at least one inorganic pigment.
- 10. The water-in-oil emulsion as claimed in claim 1, further comprising at least one anti-acne substance.
- 11. A cosmetic or dermatological stick comprising the water-in-oil emulsion as claimed in claim 1.
- 12. The cosmetic or dermatological stick as claimed in claim 11, said stick being spreadable and storage-stable in a temperature range from −10° C. to 50° C.
- 13. The cosmetic or dermatological stick as claimed in claim 11, said stick being supplied in a sleeve-like packaging.
- 14. The cosmetic or dermatological stick as claimed in claim 13, wherein the stick sleeve can be filled on both sides from top and bottom.
- 15. The cosmetic or dermatological stick as claimed in claim 13, wherein the stick sleeve can be filled at a temperature of 90° C.
- 16. The method for moisturizing the skin comprising applying to the skin an water-in-oil emulsion that is solid at room temperature comprising:
(a) a fatty phase which includes
(a1) at least one oil component, and (a2) at least one wax component; (b) a water phase which includes
(b1) 30 to 85% by weight of water, and (b2) 5 to 50% by weight of at least one skin-moisturizing agent selected from the group consisting of glycerol, chitosan, Fucogel, propylene glycol, polyethylene glycol, dipropylene glycol, butylene glycol, mannitol, lactic acid, polyethylene glycol, glycine, sodium pyrrolidonecarboxylic acid, hyaluronic acid, urea and salts thereof, (c) at least one water-in-oil emulsifier selected from the group consiting of interface-active substances of the general structure A-B-A′, where A and A′ are identical or different hydrophobic organic radicals, and B is a hydrophilic group, wherein the emulsion is solid at room temperature.
- 17. The method as claimed in claim 16, wherein the water-in-oil emulsion is in the form of a cosmetic or dermatological stick.
Priority Claims (6)
Number |
Date |
Country |
Kind |
101 48 301.5 |
Sep 2001 |
DE |
|
101 48 314.7 |
Sep 2001 |
DE |
|
101 48 302.3 |
Sep 2001 |
DE |
|
101 48 313.9 |
Sep 2001 |
DE |
|
101 50 619.8 |
Oct 2001 |
DE |
|
101 55 960.7 |
Nov 2001 |
DE |
|
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This is a continuation application of PCT/EP02/10904, filed Sep. 27, 2002, which is incorporated herein by reference in its entirety, and also claims the benefit of German Application No. 101 48 314.7 filed Sep. 29, 2001, German Application No.101 48 301.5 filed Sep. 29, 2001, German Application No.101 48 302.3, filed Sep. 29, 2001, German Application No. 101 48 313.9, filed Sep. 29, 2001, German Application No.101 50 619.8, filed Oct. 12, 2001, and German Application No. 101 55 960.7, filed Nov. 9, 2001.
Continuations (1)
|
Number |
Date |
Country |
Parent |
PCT/EP02/10904 |
Sep 2002 |
US |
Child |
10812469 |
Mar 2004 |
US |