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WO1999038473A2 - Necessaire de produit cosmetique - Google Patents

Necessaire de produit cosmetique Download PDF

Info

Publication number
WO1999038473A2
WO1999038473A2 PCT/EP1999/000494 EP9900494W WO9938473A2 WO 1999038473 A2 WO1999038473 A2 WO 1999038473A2 EP 9900494 W EP9900494 W EP 9900494W WO 9938473 A2 WO9938473 A2 WO 9938473A2
Authority
WO
WIPO (PCT)
Prior art keywords
strip
strips
kit
polymer
flexible substrate
Prior art date
Application number
PCT/EP1999/000494
Other languages
English (en)
Other versions
WO1999038473A3 (fr
Inventor
Kevin John Kells
Elizabeth Ball
Peter Bertolini
Original Assignee
Unilever Plc
Unilever N.V.
Hindustan Lever Limited
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Unilever Plc, Unilever N.V., Hindustan Lever Limited filed Critical Unilever Plc
Priority to AU29227/99A priority Critical patent/AU2922799A/en
Publication of WO1999038473A2 publication Critical patent/WO1999038473A2/fr
Publication of WO1999038473A3 publication Critical patent/WO1999038473A3/fr

Links

Classifications

    • 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
    • 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
    • A61K8/0208—Tissues; Wipes; Patches
    • 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
    • A61Q19/10—Washing or bathing preparations

Definitions

  • the invention concerns a kit with differently sized adhesive strips and a method for applying them to skin for removing keratotic plugs from pores along various areas of the face.
  • Keratotic plugs are dead epidermal cells keratinized together with sebaceous matter and dirt. Absent proper treatment, not only will beauty suffer but also various dermatological problems may arise. Removal with detergents or with make-up removers
  • Peelable masks have been employed to attack plugged facial pores. They are applied as mobile films to the skin and peeled off after drying. Typically, the film is a nonionic polymer such as polyvinyl alcohol or polyvinyl pyrrolidone. Unfortunately, the mask approach is still not sufficiently effective for removing dirt from skin pores and especially for removing keratotic plugs.
  • U.S. Patent 5,512,277 (Uemura et al.) has reported a keratotic plug remover composition including use of a peelable mask formed from a resin functionalized with salt forming groups. Particularly preferred are cationic polymers which may be delivered as a poultice.
  • cleansing pore strips have entered commerce in a number of countries.
  • Products such as Kao Biore® and Pond' s® Cleansing Pore Strips are sheets of an adhesive coated flexible band-aid shaped strip which when wetted have sufficient adhesivity to remove keratotic plugs from skin pores. The strips are left on the skin for approximately 15-30 minutes to allow adhesive polymer to penetrate the pores. Removal of the strip rips away the plugs and accumulated dead skin cells. These products have been directed to treat skin surfaces of the nose.
  • a cosmetic product kit for removing keratotic plugs from skin pores on various areas of the face, the kit including :
  • a method for removing keratotic plugs from skin pores on various areas of the face including:
  • the method may further include repeating steps (B) through (E) except with one of the second strips.
  • the second strip is applied to an area of the face other than the area to which the first strip was applied. This sequence may even be * followed by repeating steps (B) through (E) except with one of a third strip. Still a different area of the face is treated with this strip.
  • kits which include strips sized to fit nose, forehead and chin/cheeks. After study of the areas where pores are located, it has been determined that surface area of the forehead strip must be larger than that of the nose strip which in turn must be larger than that of the chin/cheek strip.
  • Configuration of the strips is preferably T-shaped.
  • T-shaped is meant an approximately rectangular configuration including an orthogonally arranged protrusion at mid-point along a longest dimension of the rectangle. Corners and edges of the T-shape are preferably rounded and undulating.
  • Kits of the present invention may include at least two pouches with each containing a different sized strip.
  • a kit consists of nose, forehead and chin/cheek strips each packaged individually within a pouch.
  • the number of nose to forehead strips per kit may range from 10:1 to 1:10, preferably from 3:1 to 1:3, optimally 1:1.
  • the ratio of nose to chin/cheek strips per kit may range from 10:1 to 1:10, preferably from 3:1 to 1:3, optimally 1:2.
  • Most a kit will include a ratio of nose to forehead to chin/cheek strips of 1:1:2.
  • Fig. 1 illustrates a strip suitable for the forehead
  • Fig. 2 illustrates a strip suitable for the nose
  • Fig. 3 illustrates a strip suitable for either the cheek or chin
  • Fig. 4 illustrates application of a strip sized for the forehead applied to that section of the face
  • Fig. 5 illustrates application of a strip sized for the nose applied to that section of the face
  • Fig. 6 illustrates application of a strip sized for the chin applied to that section of the face
  • Fig. 7 illustrates application of a strip sized for the cheek applied to that section of the face.
  • Fig. 1 illustrates a forehead strip 2 dimensioned as a T- shaped article having a pseudo rectangular area 4 and an outwardly projecting area 6 along a midpoint of a length of area 4.
  • a gently sloping convex border 8 defines a si ⁇ e of area 4 opposite to that of projection 6.
  • Fig. 2 illustrates a nose strip 10.
  • This strip includes a pseudo rectangular area 12 and a projection 14.
  • Opposite projection 14 along a length of area 12 is a concave border 16.
  • Fig. 3 illustrates a chin/cheek strip 18.
  • This strip includes a pseudo rectangular area 20 and a projection 22 along a midpoint of a length thereof.
  • Opposite projection 22 defining a length of area 20 is a concave border 24.
  • This configuration is also considered T-shaped according to the present invention. Corners of all these strips are rounded. None of the corners being angled to a point.
  • Fig. 4 illustrates placement of forehead strip 2 on an area above the eyebrows with projection 6 oriented between the eyebrows.
  • Fig. 5 illustrates placement of nose strip 10 over nose areas of the face.
  • Fig. 6 illustrates chin/cheek strip 18 being placed along a chin area of the face.
  • Fig. 7 illustrates chin/cheek strip 18 being placed beneath an eye along a cheek area of the face.
  • the product is used by removing the strip from its usually individually wrapped pouch and either directly wetting the composition on the sheet or indirectly by wetting the face in areas to be contacted by the composition.
  • the wetting agent interacts with the composition so it becomes tacky and sufficiently mobile to flow into skin pores.
  • the time between removal of strip from the pouch and use may be anywhere from 5 seconds to several hours, usually from 10 to 20 seconds.
  • Pure water is the preferred wetting agent.
  • Suitable wetting agents would include alcohols such as ethanol, propanol, propylene glycol, polyethylene glycol, polypropylene glycol and especially mixtures of these alcohols with water. Gels would normally consist of structured liquids (particularly water) thickened with structuring agents such as Carbomer.
  • the composition is allowed to dry over the area of treatment. During drying the keratotic plugs stickingly adhere to the composition.
  • the drying period ranges from 1 minute to 5 hours, preferably from 5 minutes to 1 hour, optimally from 10 to 20 minutes. Thereafter, the dried composition with adhered plugs is peeled from the skin.
  • Mobility of the composition may be measured by yield point.
  • the yield point should range from 1 to 400 Pascals, preferably from 20 to 200, optimally from 50 to 100 Pascals.
  • Adhesivity of polymers according to the present invention will range between 0.1 and 4 Newtons (force) as measured by an Instron Tester. Preferably the adhesivity will range from 0.5 to 2.0 Newtons.
  • the composition will include an adhesive polymer which may either be anionic, cationic, nonionic, amphoteric, zwitterionic or mixtures thereof.
  • Mixtures may be of polymers within any one category or between different category types. Illustrative of the latter, and a preferred embodiment, is a combination of an anionic and nonionic polymer .
  • nonionic polymers suitable for adhesive film deposition are the copolymers of vinyl acetate and crotonic acid, terpolymers of vinyl acetate, crotonic acid and a vinyl ester of an alpha-branched saturated aliphatic monocarboxylic acid such as vinyl neodecanoate; copolymers of methyl vinyl ether and maleic anhydride (molar ratio about 1.1) wherein such copolymers are 50% esterified with a saturated alcohol containing from 1 to 4 carbon atoms such as ethanol or butanol; and acrylic copolymers, terpolymers, etc., containing acrylic acid or methacrylic acid esters of acrylic or methacrylic acid with one or more saturated alcohols having from 1 to 22 carbon atoms such as methyl methacrylate, ethyl acrylate, ethyl methacrylate, n-butyl acrylate, t-butyl acrylate, t-butyl methacrylate,
  • nonionic adhesive polymers are homopolymers of N-vinylpyrrolidone and copolymers of N-vinylpyrrolidone with compatible nonionic monomers such as vinyl acetate and terpolymers of ethyl acrylate, butyl methacrylate and methyl methacrylate.
  • Nonionic polymers containing N-vinylpyrrolidone in various weight average molecular weights are available commercially from ISP Corporation such as homopolymers of N-vinylpyrrolidone having an average molecular weight of about 630,000 under the trademark PVP K-90 and those having an average molecular weight of about 1,000,000 sold under the trademark of PVP K-120.
  • Particularly preferred is poly (methyl vinyl ether/maleic anhydride) as an unneutralized resin available from ISP Corporation under the trademark Gantrez® S-97 BF.
  • Anionic adhesive polymers often are derived from the nonionic types which include carboxylic acid functions.
  • Alkaline agents are employed to neutralize the carboxylic acid or anhydride transforming them into anionic salts.
  • Suitable neutralizing agents include:
  • AMPD 2-amino-2-methyl-l, 3-propanediol
  • AEPD 2-amino-2-ethyl-l, 3-propanediol
  • AMP 2-amino-2-methyl-l-propanol
  • AB 2-amino-l-butanol
  • MEA monoethanolamine
  • DEA diethanolamine
  • TIPA triethanolamine
  • MIPA monoisopropanolamine
  • DIPA diisopropanol-amine
  • TIPA triisopropanolamine
  • DMS dimethyl stearamine
  • anionic polymers are the salts of poly (methyl vinyl ether/maleic anhydride) and polystyrene sulfonic acid.
  • the former is obtained by at least partial neutralization of Gantrez® S-97 BF and the latter available from the National Starch & Chemical Company under the trademarks Versa TL-501 and Flexan ⁇ 130 having respective molecular weights of about 500,000 and 100,000.
  • Other polymer films which may be employed and are commercially available as listed in the Table below.
  • Cationic adhesive polymers suitable for the present invention may be prepared as homo- or copolymers from monomers including:
  • DAEA Dimethyl aminoethyl acrylate
  • DMAEMA Dimethylaminoethyl methacrylate
  • DMAPAAm Dimethylaminopropylacrylamide
  • DMAPMAAm Dimethylaminopropyl methacrylamide
  • DMASt Dimethylaminostyrene
  • DMAMSt Dimethyaminomethylstyrene
  • Quaternized products of these with a known quaternizing agent such as alkyl halide, benzyl halide, alkyl or aryl sulfonic acid, or dialkyl sulfate.
  • amphoteric adhesive polymers those derived from monomers such as:
  • the salt forming group of the cationic and amphoteric polymers is not ionized, it is preferred to ionize it via neutralization with known acids such as hydrochloric acid and sulfuric acid which are inorganic acids; acetic acid, propionic acid, lactic acid, succinic acid, glycol acid which are organic acids, or with known bases such as triethylamine, trimethylamine which are tertiary amines; ammonia; or sodium hydroxide.
  • acids such as hydrochloric acid and sulfuric acid which are inorganic acids; acetic acid, propionic acid, lactic acid, succinic acid, glycol acid which are organic acids, or with known bases such as triethylamine, trimethylamine which are tertiary amines; ammonia; or sodium hydroxide.
  • Substrate sheets of the present invention may either be occlusive or non-occlusive. Preferably but not necessarily the sheets are non-occlusive to allow water evaporation from the deposited polymer as the film maturates.
  • Non- occlusivity or breathability is achieved either through use of a hydrophobic substrate having physical porosity (e.g. pore channels) or a hydrophilic substrate wherein the material of construction inherently allows for breathability.
  • Suitable materials include cellulosics such as rayon, wool, cotton, linen, thermoplastic fibers and combinations thereof. They may be woven or nonwoven. Nonwoven rayon is a preferred substrate. Materials formed from combinations of cellulosic with thermoplastic fibers may also be employed. For instance, a hydrophilic polypropylene/rayon combination can be employed for the present invention.
  • Particularly suitable substrate sheets for the present invention are PGI 5255 (a rayon resin bonded material) , Veratec 9408810 (a polyester/cellulose wet laid material) , Veratec 2006094 (a polypropylene thermal bonded material) and Veratec polyethylene.
  • composition to substrate sheet in amount ranging from 0.1:1 to 1,000:1, preferably 0.5:1 to 100:1 and optimally 0.8:1 to 10:1 by weight.
  • the polymer ordinarily will constitute from 50 to 100%, preferably from 75 to 99%, optimally from 85 to 95% by weight of the composition deposited onto the substrate sheet .
  • Minor adjunct ingredients may also be included such as fragrances, opacifiers and colorants, each in their effective amounts to accomplish their respective functions.
  • Pouches for storing strips of the present invention are normally of the laminated foil variety. These are heat sealed and utilize foils with very low vapor (e.g. moisture) transmission rates (a rate of transmission less than 5% per day, preferably less than 1% per day volatile fluid gain or loss). Walls suitable for the pouch may utilize polyester, polyethylene or polypropylene sheets, several layers of which can be laminated together. These layers may also be * provided with a coating of wax or other volatile fluid impermeable material.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dermatology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Birds (AREA)
  • Epidemiology (AREA)
  • Cosmetics (AREA)

Abstract

La présente invention concerne un nécessaire de produit cosmétique et un procédé permettant de retirer les bouchons kératosiques des pores en différentes zones du visage. Le nécessaire comporte au moins deux types différents de bandes de différentes géométries convenant à la pose en des parties spécifiques de l'anatomie faciale d'une personne. On peut ainsi avoir des bandes spécifiques pour le front, le nez et l'ensemble menton et joues. Ces bandes sont des feuilles substrat flexibles enduites d'un polymère adhésif. Le procédé consiste à humidifier la bande de façon à rendre le polymère collant et à entraîner l'adhésivité. On applique ensuite les bandes sur la zone appropriée du visage, après séchage à l'air, on les décolle, ce qui entraîne les bouchons kératosiques hors des pores.
PCT/EP1999/000494 1998-01-30 1999-01-26 Necessaire de produit cosmetique WO1999038473A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU29227/99A AU2922799A (en) 1998-01-30 1999-01-26 Cosmetic product kit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7325998P 1998-01-30 1998-01-30
US60/073,259 1998-01-30

Publications (2)

Publication Number Publication Date
WO1999038473A2 true WO1999038473A2 (fr) 1999-08-05
WO1999038473A3 WO1999038473A3 (fr) 1999-10-14

Family

ID=22112702

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/000494 WO1999038473A2 (fr) 1998-01-30 1999-01-26 Necessaire de produit cosmetique

Country Status (3)

Country Link
AR (1) AR018054A1 (fr)
AU (1) AU2922799A (fr)
WO (1) WO1999038473A2 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0965332A2 (fr) * 1998-06-10 1999-12-22 Lintec Corporation Agent et feuille pour enlever des comedons et procédé de préparation de feuille
US6306382B1 (en) 1991-05-15 2001-10-23 Kao Corporation Keratotic plug remover
WO2003041667A3 (fr) * 2001-11-13 2003-07-31 Procter & Gamble Compositions contenant des enzymes stabilisees a l'aide de certains osmoprotecteurs et methodes d'utilisation de ces compositions dans des soins d'hygiene personnelle
US6942869B2 (en) 1999-05-12 2005-09-13 Kao Corporation Keratotic plug remover
USD855884S1 (en) 2018-04-24 2019-08-06 Johnson & Johnson Consumer Inc. Nose strip
USD855883S1 (en) 2018-04-24 2019-08-06 Johnson & Johnson Consumer Inc. Nose strip

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2620914B1 (fr) * 1987-09-25 1991-11-08 Oreal Materiau en feuille pour realiser un traitement cutane ou capillaire, son procede de fabrication et articles realises en ce materiau
ATE69161T1 (de) * 1988-01-07 1991-11-15 Exovir Inc Kosmetische hautbehandlung.
DE69219201T2 (de) * 1991-05-15 1997-08-14 Kao Corp., Tokio/Tokyo Entferner für keratöse Komedonen
JP2935343B2 (ja) * 1996-03-04 1999-08-16 花王株式会社 シート状パック

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6306382B1 (en) 1991-05-15 2001-10-23 Kao Corporation Keratotic plug remover
EP0965332A2 (fr) * 1998-06-10 1999-12-22 Lintec Corporation Agent et feuille pour enlever des comedons et procédé de préparation de feuille
EP0965332A3 (fr) * 1998-06-10 2001-08-22 Lintec Corporation Agent et feuille pour enlever des comedons et procédé de préparation de feuille
US6562357B2 (en) 1998-06-10 2003-05-13 Lintec Corporation Blackhead removing sheet and method for producing blackhead removing sheet
US6942869B2 (en) 1999-05-12 2005-09-13 Kao Corporation Keratotic plug remover
WO2003041667A3 (fr) * 2001-11-13 2003-07-31 Procter & Gamble Compositions contenant des enzymes stabilisees a l'aide de certains osmoprotecteurs et methodes d'utilisation de ces compositions dans des soins d'hygiene personnelle
USD855884S1 (en) 2018-04-24 2019-08-06 Johnson & Johnson Consumer Inc. Nose strip
USD855883S1 (en) 2018-04-24 2019-08-06 Johnson & Johnson Consumer Inc. Nose strip

Also Published As

Publication number Publication date
WO1999038473A3 (fr) 1999-10-14
AU2922799A (en) 1999-08-16
AR018054A1 (es) 2001-10-31

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