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
  • A61K8/0241—Containing particulates characterized by their shape and/or structure
  • A61K8/0254—Platelets; Flakes
• • 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
  • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
  • A61K8/26—Aluminium; Compounds thereof
• • 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
  • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
  • A61K8/44—Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P17/00—Drugs for dermatological disorders
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
  • A61Q1/02—Preparations containing skin colorants, e.g. pigments
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
  • A61Q1/02—Preparations containing skin colorants, e.g. pigments
  • A61Q1/04—Preparations containing skin colorants, e.g. pigments for lips
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
  • A61Q1/02—Preparations containing skin colorants, e.g. pigments
  • A61Q1/04—Preparations containing skin colorants, e.g. pigments for lips
  • A61Q1/06—Lipsticks
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
  • A61Q1/02—Preparations containing skin colorants, e.g. pigments
  • A61Q1/10—Preparations containing skin colorants, e.g. pigments for eyes, e.g. eyeliner, mascara
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
  • A61Q1/12—Face or body powders for grooming, adorning or absorbing
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q11/00—Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q15/00—Anti-perspirants or body deodorants
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q17/00—Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
  • A61Q17/04—Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q3/00—Manicure or pedicure preparations
  • A61Q3/02—Nail coatings
• • 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
• • 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
  • A61Q5/06—Preparations for styling the hair, e.g. by temporary shaping or colouring
• • 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
  • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
  • A61K2800/41—Particular ingredients further characterized by their size
  • A61K2800/412—Microsized, i.e. having sizes between 0.1 and 100 microns
• • 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
  • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
  • A61K2800/60—Particulates further characterized by their structure or composition
  • A61K2800/61—Surface treated
  • A61K2800/62—Coated
  • A61K2800/622—Coated by organic compounds

Definitions

• the ⁇ -lauroyl-L-lysine coating can be present on the surface of the platy substrate in the range of about 4% to about 6% weight of the platy substrate, or about 4.5% weight of the platy substrate.
• the treated platy substrate can comprise less than or equal to 1 ppm lead.
• the treated platy substrate can have a hydrophobic contact angle of greater than 90° or at least about 130°.
• the treated platy substrate can have one or more of: improved hardness, improved compressability, and improved masking properties.
• a cosmetic composition comprising the treated platy substrate.
• the cosmetic composition can further comprise a particulate component having a gritty feeling and wherein the treated platy substrate is present in an amount sufficient to mask the gritty feeling.
• the precipitation reaction can be carried out at any temperature from about 15°C. to 80°C. It can be convenient to use an ambient temperature, e.g., 15°C to 30°C or 20°C to 30°C.
• the treated platy substrate disclosed can be used in any application benefiting from the properties the treated platy substrates possess. These properties include for example: improved hydrophobic surface such as a contact angle greater than 90°, greater than 105°, or greater than 130°, or between about 135° to 140°; improved compressability, e.g., more uniform compression compared to non-treated substrate and compression at lower pressures; smooth skin feeling; high oil absorption; improved transparency that reduces dirty mass tones of prior art platy substrates, such as talc or lauroyl lysine coated natural mica in cosmetic compositions; able to hide or mask the gritty feeling of other pigments, such as 5 micron REFLECKS platy pigment, in compositions better than, for instance, treated natural mica.
• improved hydrophobic surface such as a contact angle greater than 90°, greater than 105°, or greater than 130°, or between about 135° to 140°
• improved compressability e.g., more uniform compression compared to non-treated substrate and compression at lower pressures
• the cosmetic composition optionally comprises at least one cosmetically acceptable auxiliary agent.
• Cosmetically acceptable auxiliary agents include, but are not limited to, carriers, excipients, emulsifiers, surfactants, preservatives, fragrances, perfume oils, thickeners, polymers, gel formers, dyes, absorption pigments, photoprotective agents, consistency regulators, antioxidants, antifoams, antistats, resins, solvents, solubility promoters, neutralizing agents, stabilizers, sterilizing agents, propellants, drying agents, opacifiers, cosmetically active ingredients, hair polymers, hair and skin conditioners, graft polymers, water-soluble or dispersible silicone-containing polymers, bleaches, care agents, colorants, tinting agents, tanning agents, humectants, refatting agents, collagen, protein hydrolyzates, lipids, emollients and softeners, tinting agents, tanning agents, bleaches, keratin-hardening substances, antimicrobial active
• Cremophor ® GS 32 Polyglyceryl-3 Distearate 1 2.50
• Luvitol ® Lite (Hydrogenated Polyisobutene) 1 2.500
• the eyeliner composition can be prepared according to the following steps.
• Phase D ingredients one by one to Phase A-B-C mixing until completely uniform.
• iron oxide or organic pigments are used, they should first be dispersed in Ricinus Communis (Castor) Seed Oil; this mixture should then be milled in either a colloid or roller mill.
• the synthetic mica was coated in three different concentrations of ⁇ -lauroyl- L-lysine solution: 4.5%, 7.5% and 10%.
• the ⁇ -lauroyl-L-lysine (hereinafter "lauroyl lysine”) used in this example is commercially available as Amihope® LL (Ajinomoto NA, Fort Lee, New Jersey). Amihope® LL is described by the manufacturer as a functional powder that is not soluble in water or oil, and is soluble in alkaline solutions.
• the three lauroyl lysine solutions for this example were prepared in a 3.5% NaOH solution.
• the details for coating the synthetic mica with 10.0% lauroyl lysine are as follows, and were carried out at ambient conditions. In a 5 liter flask, 150 grams M- fraction synthetic mica and 1350 grams deionized water were combined. Mixing speed was set to 600 rpm, then 24.6 grams of 32% CaCl 2 was added. The solution was then stirred for 30 minutes, after which the lauroyl lysine solution was added using a peristaltic pump and a pH relay controller. 1365 grams 10% lauroyl lysine was added, while maintaining pH between 5.8-6.2 using 10% HC1. Rates for both the lauroyl lysine addition and the 10% HC1 addition were about 5 grams/minute. After the addition of the lauroyl lysine, the pH was adjusted to pH 7.
• the coated platy substrate was filtered and washed with a total of 3000 ml deionized water (6 x 500 ml).
• the washed coated platy substrate was dried at 120°C to a constant weight, which took about 3 hours. After drying, the coated platy substrate was sieved using a #200 mesh screen.
• the contact angle of the three resulting coated platy substrates was measured. In general, the greater that contact angle, the greater the hydrophobicity of the surface. A contact angle of greater than 90° is designated a hydrophobic surface.
• the contact angle data is summarized in Table 17.
• the uncoated synthetic mica had a contact angle of less than 90°, indicative of its hydrophilic surface. All three coated synthetic mica samples had a contact angle greater than 90° and therefore are hydrophobic.
• compositions were prepared with the treated synthetic mica. As comparative samples, the compositions were also prepared using the following platy substrates: untreated CHIONE synthetic mica M- fraction; untreated natural mica (Natural V mica); and lauroyl ly sine-treated natural mica (MEARLMICA® Treated SVA, BASF; comprises 2.5 - 4.5% lauroyl lysine).
• Lipstick compositions comprising "5 micron” pigments, such as REFLECKS can have a gritty feeling on the lips. It was found that in a lipstick composition comprising treated synthetic mica and 5 micron REFLECKS Gilded Gold G232L (a multilayer metal oxide-coated borosilicate substrate pigment manufactured by BASF), the lauroyl lysine treated synthetic mica used at a 1:1 ratio masked the grittiness feeling of the 5 micron Reflecks on the lips. In contrast, MEARLMICA® Treated SVA did not mask as well the gritty feeling in a comparable lipstick formulation on the lips. Thus, the treated synthetic mica advantageouly exhibits improved function of masking a gritty feeling from particulate components such as pigments in a cosmetic, as compared to treated natural mica.
• Compressibility of lauroyl lysine-coated CHIONETM M-fraction synthetic mica was assessed. Compressibility was also assessed for: uncoated synthetic mica M-fraction; uncoated natural mica (Natural V mica); lauroyl lysine-coated natural mica
• the treated platy substrate of the disclosure had a notably lower coefficient of friction compared to the untreated platy substrate.
• the treated platy substrate is a much smoother material than the corresponding untreated platy substrate. This property is advantageous for cosmetic applications of the treated platy substrate.
• embodiments of the invention consist essentially of the components and/or steps disclosed herein. In yet another aspect, the embodiments of the invention consist of the components and/or steps disclosed herein.

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• Veterinary Medicine (AREA)
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• Oral & Maxillofacial Surgery (AREA)
• Inorganic Chemistry (AREA)
• Engineering & Computer Science (AREA)
• Bioinformatics & Cheminformatics (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Medicinal Chemistry (AREA)
• Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
• Organic Chemistry (AREA)
• Pharmacology & Pharmacy (AREA)
• Cosmetics (AREA)

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Cited By (5)

Citations (4)

• 2013
  • 2013-03-12 WO PCT/US2013/030461 patent/WO2013138312A1/fr not_active Ceased

Patent Citations (4)

Non-Patent Citations (2)

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