EP3958822A1 - Emulsion comprising piroctone olamine - Google Patents
Emulsion comprising piroctone olamineInfo
- Publication number
- EP3958822A1 EP3958822A1 EP20717909.4A EP20717909A EP3958822A1 EP 3958822 A1 EP3958822 A1 EP 3958822A1 EP 20717909 A EP20717909 A EP 20717909A EP 3958822 A1 EP3958822 A1 EP 3958822A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- emulsion
- phase
- silicone
- oil
- emulsifier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000000839 emulsion Substances 0.000 title claims abstract description 109
- BTSZTGGZJQFALU-UHFFFAOYSA-N piroctone olamine Chemical compound NCCO.CC(C)(C)CC(C)CC1=CC(C)=CC(=O)N1O BTSZTGGZJQFALU-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 229940081510 piroctone olamine Drugs 0.000 title claims abstract description 31
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 27
- 229920002545 silicone oil Polymers 0.000 claims abstract description 17
- 229920005862 polyol Polymers 0.000 claims abstract description 14
- 150000003077 polyols Chemical class 0.000 claims abstract description 14
- 239000012071 phase Substances 0.000 claims description 58
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 27
- 239000008346 aqueous phase Substances 0.000 claims description 24
- 229920001296 polysiloxane Polymers 0.000 claims description 23
- 235000013870 dimethyl polysiloxane Nutrition 0.000 claims description 22
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 18
- 229940008099 dimethicone Drugs 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 16
- 239000000178 monomer Substances 0.000 claims description 16
- 239000003921 oil Substances 0.000 claims description 16
- 229920000642 polymer Polymers 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 15
- 235000019198 oils Nutrition 0.000 claims description 14
- 239000002562 thickening agent Substances 0.000 claims description 12
- 239000006185 dispersion Substances 0.000 claims description 8
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 7
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 6
- 125000004432 carbon atom Chemical group C* 0.000 claims description 6
- 229920000570 polyether Polymers 0.000 claims description 6
- 239000002453 shampoo Substances 0.000 claims description 6
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 claims description 4
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- MYWUZJCMWCOHBA-VIFPVBQESA-N methamphetamine Chemical compound CN[C@@H](C)CC1=CC=CC=C1 MYWUZJCMWCOHBA-VIFPVBQESA-N 0.000 claims description 4
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 4
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 4
- 235000011187 glycerol Nutrition 0.000 claims description 3
- 229940015975 1,2-hexanediol Drugs 0.000 claims description 2
- XMSXQFUHVRWGNA-UHFFFAOYSA-N Decamethylcyclopentasiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 XMSXQFUHVRWGNA-UHFFFAOYSA-N 0.000 claims description 2
- 229940086555 cyclomethicone Drugs 0.000 claims description 2
- FHKSXSQHXQEMOK-UHFFFAOYSA-N hexane-1,2-diol Chemical compound CCCCC(O)CO FHKSXSQHXQEMOK-UHFFFAOYSA-N 0.000 claims description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 2
- PHLASVAENYNAOW-UHFFFAOYSA-N methyl-bis[[methyl(diphenyl)silyl]oxy]-phenylsilane Chemical compound C=1C=CC=CC=1[Si](C)(C=1C=CC=CC=1)O[Si](C=1C=CC=CC=1)(C)O[Si](C)(C=1C=CC=CC=1)C1=CC=CC=C1 PHLASVAENYNAOW-UHFFFAOYSA-N 0.000 claims description 2
- 239000002480 mineral oil Substances 0.000 claims description 2
- 235000010446 mineral oil Nutrition 0.000 claims description 2
- 229940057874 phenyl trimethicone Drugs 0.000 claims description 2
- 229920001515 polyalkylene glycol Polymers 0.000 claims description 2
- 229940117985 trimethyl pentaphenyl trisiloxane Drugs 0.000 claims description 2
- LINXHFKHZLOLEI-UHFFFAOYSA-N trimethyl-[phenyl-bis(trimethylsilyloxy)silyl]oxysilane Chemical compound C[Si](C)(C)O[Si](O[Si](C)(C)C)(O[Si](C)(C)C)C1=CC=CC=C1 LINXHFKHZLOLEI-UHFFFAOYSA-N 0.000 claims description 2
- 235000015112 vegetable and seed oil Nutrition 0.000 claims description 2
- 239000008158 vegetable oil Substances 0.000 claims description 2
- 125000005313 fatty acid group Chemical group 0.000 claims 2
- 239000012530 fluid Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 6
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical class C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 description 5
- -1 sodium chloride Chemical class 0.000 description 5
- 239000013543 active substance Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 4
- 239000002736 nonionic surfactant Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 150000002191 fatty alcohols Chemical class 0.000 description 3
- 238000010348 incorporation Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 3
- 239000001993 wax Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000013523 DOWSIL™ Substances 0.000 description 2
- 208000001840 Dandruff Diseases 0.000 description 2
- 229920013731 Dowsil Polymers 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 239000004166 Lanolin Substances 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 125000005376 alkyl siloxane group Chemical group 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 239000003945 anionic surfactant Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 150000004665 fatty acids Chemical group 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 239000003349 gelling agent Substances 0.000 description 2
- 229920001519 homopolymer Polymers 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 235000019388 lanolin Nutrition 0.000 description 2
- 229940039717 lanolin Drugs 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229940077400 trideceth-12 Drugs 0.000 description 2
- 229940058015 1,3-butylene glycol Drugs 0.000 description 1
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 description 1
- IIZPXYDJLKNOIY-JXPKJXOSSA-N 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC IIZPXYDJLKNOIY-JXPKJXOSSA-N 0.000 description 1
- ILCOCZBHMDEIAI-UHFFFAOYSA-N 2-(2-octadecoxyethoxy)ethanol Chemical compound CCCCCCCCCCCCCCCCCCOCCOCCO ILCOCZBHMDEIAI-UHFFFAOYSA-N 0.000 description 1
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Natural products OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 1
- 102000008186 Collagen Human genes 0.000 description 1
- 108010035532 Collagen Proteins 0.000 description 1
- 102000002322 Egg Proteins Human genes 0.000 description 1
- 108010000912 Egg Proteins Proteins 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 239000004264 Petrolatum Substances 0.000 description 1
- 229920001213 Polysorbate 20 Polymers 0.000 description 1
- 229920001214 Polysorbate 60 Polymers 0.000 description 1
- 108010009736 Protein Hydrolysates Proteins 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical class O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 206010040825 Skin depigmentation Diseases 0.000 description 1
- BCKXLBQYZLBQEK-KVVVOXFISA-M Sodium oleate Chemical compound [Na+].CCCCCCCC\C=C/CCCCCCCC([O-])=O BCKXLBQYZLBQEK-KVVVOXFISA-M 0.000 description 1
- NWGKJDSIEKMTRX-AAZCQSIUSA-N Sorbitan monooleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O NWGKJDSIEKMTRX-AAZCQSIUSA-N 0.000 description 1
- HVUMOYIDDBPOLL-XWVZOOPGSA-N Sorbitan monostearate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O HVUMOYIDDBPOLL-XWVZOOPGSA-N 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 239000002280 amphoteric surfactant Substances 0.000 description 1
- 238000010539 anionic addition polymerization reaction Methods 0.000 description 1
- 230000000843 anti-fungal effect Effects 0.000 description 1
- 229960005070 ascorbic acid Drugs 0.000 description 1
- 235000010323 ascorbic acid Nutrition 0.000 description 1
- 239000011668 ascorbic acid Substances 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 235000019437 butane-1,3-diol Nutrition 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 229920006317 cationic polymer Polymers 0.000 description 1
- 238000010538 cationic polymerization reaction Methods 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 229940073669 ceteareth 20 Drugs 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007957 coemulsifier Substances 0.000 description 1
- 229920001436 collagen Polymers 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 description 1
- GMSCBRSQMRDRCD-UHFFFAOYSA-N dodecyl 2-methylprop-2-enoate Chemical group CCCCCCCCCCCCOC(=O)C(C)=C GMSCBRSQMRDRCD-UHFFFAOYSA-N 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 235000013345 egg yolk Nutrition 0.000 description 1
- 210000002969 egg yolk Anatomy 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 150000002169 ethanolamines Chemical class 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 229940075529 glyceryl stearate Drugs 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 150000002433 hydrophilic molecules Chemical class 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 239000002563 ionic surfactant Substances 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- TYQCGQRIZGCHNB-JLAZNSOCSA-N l-ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(O)=C(O)C1=O TYQCGQRIZGCHNB-JLAZNSOCSA-N 0.000 description 1
- 239000000787 lecithin Substances 0.000 description 1
- 235000010445 lecithin Nutrition 0.000 description 1
- 229940067606 lecithin Drugs 0.000 description 1
- 150000002634 lipophilic molecules Chemical class 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000002159 nanocrystal Substances 0.000 description 1
- 229920005615 natural polymer Polymers 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000007764 o/w emulsion Substances 0.000 description 1
- HMZGPNHSPWNGEP-UHFFFAOYSA-N octadecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)C(C)=C HMZGPNHSPWNGEP-UHFFFAOYSA-N 0.000 description 1
- 239000003605 opacifier Substances 0.000 description 1
- 229940066842 petrolatum Drugs 0.000 description 1
- 235000019271 petrolatum Nutrition 0.000 description 1
- 238000004987 plasma desorption mass spectroscopy Methods 0.000 description 1
- 229920000196 poly(lauryl methacrylate) Polymers 0.000 description 1
- 229920001481 poly(stearyl methacrylate) Polymers 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229940056099 polyglyceryl-4 oleate Drugs 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000000256 polyoxyethylene sorbitan monolaurate Substances 0.000 description 1
- 235000010486 polyoxyethylene sorbitan monolaurate Nutrition 0.000 description 1
- 239000001818 polyoxyethylene sorbitan monostearate Substances 0.000 description 1
- 235000010989 polyoxyethylene sorbitan monostearate Nutrition 0.000 description 1
- 229920001184 polypeptide Polymers 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 229940068977 polysorbate 20 Drugs 0.000 description 1
- 229940113124 polysorbate 60 Drugs 0.000 description 1
- 229940068965 polysorbates Drugs 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 102000004196 processed proteins & peptides Human genes 0.000 description 1
- 108090000765 processed proteins & peptides Proteins 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 210000004761 scalp Anatomy 0.000 description 1
- 229920005573 silicon-containing polymer Polymers 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- DAJSVUQLFFJUSX-UHFFFAOYSA-M sodium;dodecane-1-sulfonate Chemical compound [Na+].CCCCCCCCCCCCS([O-])(=O)=O DAJSVUQLFFJUSX-UHFFFAOYSA-M 0.000 description 1
- 229950004959 sorbitan oleate Drugs 0.000 description 1
- 229950011392 sorbitan stearate Drugs 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229940098760 steareth-2 Drugs 0.000 description 1
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/04—Dispersions; Emulsions
- A61K8/06—Emulsions
- A61K8/066—Multiple emulsions, e.g. water-in-oil-in-water
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/34—Alcohols
- A61K8/345—Alcohols containing more than one hydroxy group
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/49—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds
- A61K8/4906—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with one nitrogen as the only hetero atom
- A61K8/4926—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with one nitrogen as the only hetero atom having six membered rings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- A61K8/8141—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- A61K8/8152—Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
- A61K8/86—Polyethers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
- A61K8/89—Polysiloxanes
- A61K8/891—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
- A61K8/89—Polysiloxanes
- A61K8/891—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
- A61K8/894—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone modified by a polyoxyalkylene group, e.g. cetyl dimethicone copolyol
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q5/00—Preparations for care of the hair
- A61Q5/006—Antidandruff preparations
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/20—Chemical, physico-chemical or functional or structural properties of the composition as a whole
- A61K2800/30—Characterized by the absence of a particular group of ingredients
- A61K2800/31—Anhydrous
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
- A61Q19/02—Preparations for care of the skin for chemically bleaching or whitening the skin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q5/00—Preparations for care of the hair
- A61Q5/02—Preparations for cleaning the hair
Definitions
- the present invention relates to emulsions comprising piroctone olamine, to personal care products comprising the emulsion and to methods of making the emulsions.
- 1-Hydroxy-4-methyl-6- (2,4,4-trimethyl)-pentyl-2(1 H)-pyridone, 2-aminoethanol salt, also known as piroctone ethanolamine or piroctone olamine, is an anti-fungal active agent which may be effective against the causes of dandruff.
- piroctone olamine in personal care products, such as shampoos, conditioners and skin care products.
- shampoos and conditioners piroctone olamine may act as an anti-dandruff active agent.
- skin piroctone olamine may have a variety of effects, for example with reference to EP 0 801 947 A1 , as a skin depigmentation agent.
- Polyol-in-oil emulsions are known, for example from EP 2 875 803 A1. Such non- aqueous emulsions have been proposed as a delivery form for active ingredients which react with or are degraded by water. Similar considerations apply to
- piroctone olamine In order to be as effective as possible, it is important that the piroctone olamine is deposited on and remains on hair or skin in order to have the desired activity.
- An aspect of piroctone olamine which may be disadvantageous in this regard is its relatively high solubility in aqueous solutions.
- Personal care products comprising piroctone olamine are frequently formulated as aqueous emulsions with the piroctone olamine residing in the aqueous phase.
- the piroctone olamine In use, for example in the shower, the piroctone olamine is exposed to the surfactants cleansing the hair or skin and may be washed off the hair or skin reducing the product’s effectiveness in achieving the desired activity. It would be desirable to ensure that the piroctone olamine remains on the hair or skin to which it is applied, so that as much of it as possible remains there, even in environments such as a shower.
- the number of significant digits conveys neither a limitation on the indicated amounts nor on the accuracy of the measurements.
- min means“minute” or“minutes”.
- molecular weight or“M.Wt.” or“MW’ and grammatical equivalents mean the number average molecular weight.
- water-soluble refers to any material that is sufficiently soluble in water to form a clear solution to the naked eye at a concentration of 0.1 % by weight of the material in water at 25°C.
- water-insoluble refers to any material that is not“water-soluble”.
- “monomer” means a discrete, non-polymerised chemical moiety capable of undergoing polymerisation in the presence of an initiator or any suitable reaction that creates a macromolecule e.g. such as
- “Unit” means a monomer that has already been polymerised i.e. is part of a polymer.
- Polymer means a chemical formed from the polymerisation of two or more monomers.
- the term “polymer” includes all materials made by the polymerisation of monomers as well as natural polymers. Polymers made from only one type of monomer are called homopolymers.
- a polymer comprises at least two monomers. Polymers made from two or more different types of monomers are called copolymers. The distribution of the different monomers can be random, alternating or block-wise (i.e. block copolymer).
- the term“polymer” used herein includes any type of polymer including homopolymers and copolymers.
- an emulsion of the type P/S wherein P refers to the dispersed phase, which is immiscible with oil, S refers to the continuous oil phase and wherein:
- dispersed phase P comprises more than 80%wt of polyol
- continuous phase S comprises a silicone oil
- the emulsion comprises a first emulsifier and piroctone olamine.
- the inventors consider that incorporation of the active agent, piroctone olamine, in a delivery system comprising a solution of the piroctone olamine in a solvent, which is emulsified in a continuous phase having a high affinity for scalp and hair, reduces the amount of active agent which is washed and rinsed off during washing and showering. Since the piroctone olamine is not present in the aqueous phase, it is to some extent protected from the surfactants used to cleanse hair and skin.
- the P/S emulsion of the first aspect of the invention may comprise from 2%wt to 90%wt of dispersed phase P, so it may in some cases be a high internal phase emulsion (HIPE).
- HIPE high internal phase emulsion
- the emulsion of the first aspect of the invention comprises from 5%wt to 80%wt of dispersed phase P.
- the P/S emulsion of the first aspect of the invention may comprise from 1wt% to 20wt% of piroctone olamine.
- Piroctone olamine may be soluble to some extent in both the dispersed phase, P, and the continuous phase, S, depending upon the constituents of those phases and the emulsifiers used.
- the emulsion comprises from 2wt% to 16wt%, more preferably from 4wt% to 10wt% of piroctone olamine.
- the polyol is selected from the group consisting of propylene glycol, butylene glycol,
- the polyol comprises and preferably consists of propylene glycol, due to the high solubility of piroctone olamine in propylene glycol.
- the dispersed phase P comprises less than 100%wt of polyol.
- the dispersed phase P comprises more than 90%wt of polyol.
- the dispersed phase P consists of one or more polyols and more advantageously still, the dispersed phase P consists of propylene glycol.
- the continuous phase S comprises an oil selected from the group consisting of mineral oil, silicone oil, vegetable oil and mixtures thereof.
- the continuous phase S consists of silicones including silicone oil.
- the continuous phase S consists of silicone oil.
- the silicone oil is selected from the group consisting of dimethicone, cyclomethicone, phenyl trimethicone, trimethyl pentaphenyl trisiloxane, dimethicone copolyol and mixtures thereof.
- the continuous phase S consists of dimethicone.
- Suitable silicone oils include those which have a viscosity, as measured at 25°C, of less than 10,000 cSt, preferably from 1 cSt to 1000 cSt, more preferably from 1 cSt to 100 cSt.
- examples of such oils include Dow Coming’s 200 Series polydimethylsilixane fluids, which are available in range of kinematic viscosities from 50 to 1000 Centistoke.
- the P/S emulsion may additionally comprise a thickener.
- Suitable thickeners may be selected from the group consisting of silicones, waxes, clays, silicas, salts, natural and synthetic esters, fatty alcohols, and mixtures thereof.
- the thickener may be a silicone. Suitable silicones include alkyl siloxane gellants, silicone elastomers, high molecular weight dimethicones (fluids greater than 1000 cSt), and high molecular weight alkyl, hydroxyl, carboxyl, amino, and/or fluoro-substituted dimethicones (fluids greater than 1000 cSt).
- the thickener may be present in an amount from 0.2% to 20%, preferably from 0.4% to 15% of the P/S/W emulsion.
- the P/S emulsion does not comprise any salt, such as sodium chloride, to thicken or stabilize the emulsion.
- the emulsion is a polyol-in-silicone emulsion.
- the nature of an emulsifier/surfactant can be represented by the hydrophilic- lipophilic balance (HLB) of the molecule.
- HLB hydrophilic- lipophilic balance
- the degree of this hydrophilic-lipophilic balance can be determined by calculating values for the different regions of the molecule, as described by Griffin in 1949 and 1954. Griffin's method has been primarily developed for non-ionic surfactants as described in 1954 works as follows
- HLB 10*Mh/M where Mh is the molecular mass of the hydrophilic portion of the molecule, and M is the molecular mass of the whole molecule, giving a result on a scale of 0 to 20.
- An HLB value of 0 corresponds to a completely lipophilic molecule, and a value of 20 corresponds to a completely hydrophilic molecule.
- HLB nonionic surfactants
- the term“HLB” as used in this specification for nonionic surfactants is calculated by the above formula.
- the method of Griffin is published, for example, in Journal of the Society of Cosmetic Chemists, 5 (4), 249-256 (1954).
- the term“HLB” as used in this specification for anionic, cationic or amphoteric surfactants is calculated by the method of Davies. This method is published, for example, in Gas/Liquid and Liquid/Liquid Interfaces. Proceedings of 2nd Inter-national Congress Surface Activity, pp. 426-438, Butterworths, London 1957.
- the first emulsifier has an HLB value of less than 8, preferably from 2 to 6.
- Emulsifiers of this type are known to the skilled person and include glyceryl stearate (HLB of 3.8), polyglyceryl-4-oleate (HLB of 4-6), sorbitan oleate (HLB of 4.3), sorbitan stearate (HLB of 4.7), steareth-2 (HLB of 4.9).
- silicone polyethers including polyether end-capped dimethicone and silicone polyether/dimethicone co-polymers having an appropriate HLB-value may advantageously be used.
- the first emulsifier comprises a silicone polyether emulsifier with an HLB-value of 2-6.
- a multiple emulsion of the type P/S/A comprising a P/S emulsion according to the first aspect of the invention dispersed in an aqueous phase, A, wherein the P/S emulsion is stabilized in the aqueous phase A by a second emulsifier or wherein the P/S emulsion is stabilized in the aqueous phase A by particulates as a Pickering Emulsion.
- the aqueous phase may comprise water, water soluble components and materials which are miscible with water, such as lower monoalcohols having 1 -5 carbon atoms (including ethanol and isopropanol); glycols having 2-8 carbon atoms, such as glycerine, propylene glycol, ethylene glycol, 1 ,3-butylene glycol, dipropylene glycol; C3-C4 ketones, and C2-C4 aldehydes.
- the aqueous phase comprises more than 50%wt, preferably more than 80%wt, more preferably more than 90%wt water.
- the aqueous phase may comprise more than 95%wt water, and it may consist of water.
- the second emulsifier has an HLB value from 8 to 18.
- Emulsifiers of this type are known to the skilled person and may include ionic or nonionic surfactants.
- Suitable examples of nonionic surfactants include trideceth-10 (HLB of 13.9), trideceth-12 (HLB of 14.5), polysorbates, such as polysorbate-20 (HLB of 16.7) and polysorbate-60 (HLB of 14.9) and ceteareth-20 (HLB of 15.3).
- Suitable examples of anionic surfactants include sodium dodecane 1 -sulfonate (HLB of 12.3) and sodium oleate (HLB of 18).
- the particulates which stabilize the Pickering Emulsion may be synthetic or natural clays, surface-modified silica particles, cellulose nanocrystals or other types of particulates known to stabilize such emulsions.
- the P/S/W emulsion may additionally comprise a polymer comprising at least one monomeric unit selected from (meth)acrylate and meth(acrylamide) types containing at least one fatty acid chain containing from 8 to 30 carbon atoms.
- An example of such a monomer is lauryl methacrylate, which may be polymerized to form
- poly(laurylmethacrylate) and stearyl methacrylate which may be polymerized to form poly(stearylmethacrylate).
- polymers which are lipophilic in nature, dissolve in the silicone oil, may assist in maintaining the integrity of the droplet of P/S and in deposition and attachment of the P/S emulsion droplets to hair and skin.
- the polymer may be present in an amount from 0.1 wt% to 10wt% of the P/S/A emulsion.
- the multiple emulsion of the second aspect of the invention is a polyol-in-silicone-in-water emulsion, preferably a propylene glycol-in-silicone-in- water emulsion.
- a method of making an emulsion of the type P/S wherein P refers to the dispersed phase, which is immiscible with oil, S refers to the continuous oil phase and wherein:
- dispersed phase P comprises more than 80%wt of polyol
- continuous phase S comprises a silicone oil
- the emulsion comprises a first emulsifier and piroctone olamine
- the method comprising dissolving the piroctone olamine in phase P, mixing the first emulsifier into phase S, adding phase P to phase S under continuous stirring to form a homogenous dispersion of dispersed phase P within continuous phase S.
- the piroctone olamine is dissolved in phase P at a temperature from 40 degrees Celsius to 55 degrees Celsius.
- mixing the first emulsifier into phase S, adding phase P to phase S under continuous stirring to form a homogenous dispersion of dispersed phase P within continuous phase S takes place at a temperature from 20 degrees Celsius to 40 degrees Celsius.
- the method comprises adding a thickener to the P/S emulsion after formation.
- Suitable thickeners may be selected from the group consisting of silicones, waxes, clays, silicas, salts, natural and synthetic esters, fatty alcohols, and mixtures thereof.
- the thickener may be a silicone.
- Suitable silicones include alkyl siloxane gellants, silicone elastomers, high molecular weight dimethicones (fluids greater than 1000 cSt), and high molecular weight alkyl, hydroxyl, carboxyl, amino, and/or fluoro-substituted dimethicones (fluids greater than 1000 cSt).
- the thickener may be present in an amount from 0.2% to 20%, preferably from 0.4% to 15% of the P/S/W emulsion.
- the thickener may be mixed into the P/S emulsion_at a temperature from 20 degrees Celsius to 30 degrees Celsius in order to thicken the P/S emulsion.
- a method of making a multiple emulsion of the type P/S/A comprising:
- meth(acrylamide) types containing at least one fatty acid chain containing from 8 to 30 carbon atoms;
- the monomer which is hydrophobic, is miscible with the continuous phase, S.
- Polymerisation may be performed in ways known to the skilled person.
- the resulting polymer may stabilise the dispersed droplets and assist them in maintaining their integrity, for example when subjected to shear during dispersion in aqueous phase, A.
- a personal care product comprising an emulsion according to any preceding claim.
- the personal care product of the fifth aspect of the invention may be in the form of a skin care product or a hair care product. If it is a hair care product, then it may
- Such products are typically O/W emulsions. Emulsification of a P/S emulsion as described herein within the water phase of such an O/W emulsion will effectively give rise to a P/S/W emulsion as also described herein.
- a personal care product according to the invention may additionally comprise one or more ingredients common in the field of cosmetology, pharmacy, and dermatology.
- additional ingredients may include oils, petrolatum, fatty alcohols, silicones, waxes, emulsifiers, co-emulsifiers, cationic polymers, film- formers, superfatting agents, stabilizers, polyols, preservatives, pearlizing agents, opacifiers, dyes, fragrances, solvents, protein derivatives such as gelatin, collagen hydrolysates, natural or synthetic-based polypeptides, egg yolk, lecithin, lanolin and lanolin derivatives and mixtures thereof.
- Octopirox is piroctone olamine, manufactured by Clariant.
- Example 7 polyol-in-oil-in-water emulsions comprising high viscous silicone polymer thickener
- a P/S emulsion was prepared as described in relation to Examples 1 -4.
- the monomer was then added to the P/S emulsion, so that it dissolved in the silicone oil continuous phase.
- the Hoesch T12 was mixed with water and the monomer-containing P/S emulsion was added to the Hoesch T12/water mixture. All the steps were performed at a temperature from 20 degrees Celsius to 30 degrees Celsius.
- the mixture was then heated to 70 degrees Celsius under nitrogen. After it had reached a temperature of 70 degrees Celsius an aqueous solution of Luparox TBH 70 (70% 1 ,1 -dimethylethyl hydroperoxide solution in water) and ascorbic acid were added in 2 portions. Polymerization was complete after 2 hours.
- Figure 1 illustrates a particle of polyol-in-silicone emulsion, itself dispersed in an aqueous phase, the P/S/A emulsion comprising the formulation of Example 8.
- the particle of silicone oil Within the particle of silicone oil, smaller particles of propylene glycol can be distinguished.
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Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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EP19171276 | 2019-04-26 | ||
PCT/EP2020/060772 WO2020216676A1 (en) | 2019-04-26 | 2020-04-16 | Emulsion comprising piroctone olamine |
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EP3958822A1 true EP3958822A1 (en) | 2022-03-02 |
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EP20717909.4A Withdrawn EP3958822A1 (en) | 2019-04-26 | 2020-04-16 | Emulsion comprising piroctone olamine |
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Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2234009C3 (en) | 1972-07-11 | 1979-01-11 | Hoechst Ag, 6000 Frankfurt | Cosmetic preparations |
FR2746015B1 (en) | 1996-03-18 | 1998-04-24 | USE OF OCTOPIROX AS A DEPIGMENTANT AGENT | |
US20030180333A1 (en) | 1997-06-27 | 2003-09-25 | Revlon Consumer Products Corporation | Compositions containing stabilized ascorbic acid and related methods |
US6080394A (en) * | 1999-11-08 | 2000-06-27 | Dow Corning Corporation | Polar solvent-in-oil emulsions and multiple emulsions |
BRPI0403269A (en) * | 2004-08-06 | 2006-03-21 | Natura Cosmeticos Sa | multiple emulsion |
DE102007045242A1 (en) * | 2007-04-20 | 2008-10-23 | Beiersdorf Ag | Benzaldehydes in cosmetic or dermatological preparations |
CN101584647B (en) * | 2008-05-20 | 2012-10-31 | 赢创德固赛特种化学(上海)有限公司 | Polylol-in-oil composition with high vitamin C content and preparation method thereof |
EP2875803A1 (en) | 2013-11-26 | 2015-05-27 | OTC GmbH | Polyol-in-oil-emulsions for dermal delivery |
-
2020
- 2020-04-16 WO PCT/EP2020/060772 patent/WO2020216676A1/en unknown
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