Classifications

• • 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
  • 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
  • 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
  • A61K8/11—Encapsulated compositions
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
  • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
  • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
  • A61L15/42—Use of materials characterised by their function or physical properties
  • A61L15/46—Deodorants or malodour counteractants, e.g. to inhibit the formation of ammonia or bacteria
• • 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
  • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
  • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
  • A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
  • A61L2300/404—Biocides, antimicrobial agents, antiseptic agents
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
  • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
  • A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
  • A61L2300/404—Biocides, antimicrobial agents, antiseptic agents
  • A61L2300/408—Virucides, spermicides
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
  • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
  • A61L2300/60—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a special physical form
  • A61L2300/62—Encapsulated active agents, e.g. emulsified droplets
  • A61L2300/622—Microcapsules
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
  • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
  • Y10T428/2984—Microcapsule with fluid core [includes liposome]
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
  • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
  • Y10T428/2984—Microcapsule with fluid core [includes liposome]
  • Y10T428/2985—Solid-walled microcapsule from synthetic polymer
  • Y10T428/2987—Addition polymer from unsaturated monomers only

Definitions

• microcapsules are homogeneously dis- 128/2'70 284 tributed in the cellulose batting or in alternating layers on the fabric to effect a delayed release of the References Cited deodorant therefrom, the walls of said microcapsules being permeable or soluble on contact with the fluid associated with menstrual discharge.
• the present invention relates to a treating cosmetic composition, preferably a deodorant composition, in which the deodorant effect is delayed with reference to the moment of application of the composition, the effect appearing only after perspiration.
• Deodorant compositions used for the care of the body whose deodorant effect is immediate after application are already known, but it is obvious that such compositions cannot give entire satisfaction. In the case in which the composition is used preventatively, the deodorant effect is exerted as soon as it is applied with gradually diminishing effectiveness. Moreover, and on the other hand, application of such a composition at the desired moment also presents obvious difficulties. It must be added that there is the necessity of using the active product in excess at the time of .application of the composition, or else there must be numerous applications with all the bother that this entails.
• the present invention is intended to obviate the above mentioned difficulties, and especially to avoid occurrence of the deodorant effect from the moment of application of the deodorant cosmetic composition.
• the present invention thus relates to a new deodorant composition containing the active elements of an ordinary deodorant composition, the said elements only acting at the time of perspiration or after a certain lapse of time after sufficient perspiration.
• the present invention also relates to the process of deferred release effected in situ after perspiration, at the location of application of the cosmetic composition.
• Thepresent invention also relates to the process of preparation of the above mentioned cosmetic deodorant compositions.
• the support phase of the deodorant composition is constituted by the usual vehicle of these compositions, the said support phase being cellulose batting or any absorbent fabric on which the treating phase is deposited.
• the treating phase which is constituted by microencapsulated compounds or agents contained in the above mentioned vehicle causes the perspiration odors or other odors to disappear at the end of a certain period after occurrence of the said odors.
• a modification of the release process consists in attaining or accelerating the destruction of envelope E by a mixture of water and another suitable agent.
• capsules C contain in addition to the deodorant composition, e.g., a lower alcohol such as ethanol or a polysaccharide, envelope E being sufficiently permeable to the water of perspiration.
• a copolymer of styrene and completely hydrolyzed maleic acid for example, the water of perspiration penetrates through envelope E of the capsule in which it constitutes a mixture, e.g., water-ethanol which for a content of about 50:50 readily dissolves the said envelope B.
• a larger or smaller number of capsules release the deodorant product, in a way that is accelerated by the fact that more and more rapidly the optimal proportions for the solvent mixture are reached.
• Envelope E of microcapsules C which contain the deodorant compositions are constituted by multifarious compounds, on condition that they be sufficiently dissolved or permeable in contact with the perspiration water, taking into account the pH thereof, or on condition that they be destroyed by microorganisms also developing in the course of perspiration.
• the compounds forming envelopes E are selected especially from the following: gelatin, ethyl cellulose, cellulose acetophthalates, treated or untreated polyvinyl alcohols.
• microcapsules are used whose sizes range from 30 to 500 microns, preferably from to 250 microns, and the weight of envelopes E with reference to the total weight of capsules C ranges from 1 to 10 percent, preferably 3 to 6 percent by weight.
• a powder, a stick or a lotion can be used as vehicle for capsules C, the lotion advantageously being used as an aerosol.
• Capsules C contain for example deodorant agents such as compositions known as G4 i.e., 2,2'-dihydroxy- 5,5'dichloro-diphenyl methane G11, i.e., 2,2- methylenebis (3,4,6-trichlorophenal), quaternary ammonium compositions, alums, anilide derivatives such as salicylanilides and chlorophenyl hexanes, or ordinary deodorant cosmetic compositions.
• G4 i.e., 2,2'-dihydroxy- 5,5'dichloro-diphenyl methane G11, i.e., 2,2- methylenebis (3,4,6-trichlorophenal)
• quaternary ammonium compositions quaternary ammonium compositions
• alums anilide derivatives such as salicy
• microorganisms capable of destroying the microorganisms which occur in perspiration and which to a great extent are responsible for the odors that are to be suppressed.
• microcapsules C are used in an appropriate range insofar as size and envelope thickness are concerned.
• the density of the mixture can be adjusted to that of the microcapsules by addition of an excess of one of the ingredients or by introduction of a suitable inert substance (inert with reference to the other components).
• capsules C are introduced either directly at any moment of the preparation, or in pre-mixtures obtained from components of the vehicle of the cosmetic composition. It is likewise very useful to add a moistener to the capsules before introducing them into the deodorant composition or into a pre-mixture.
• the deodorant compound of the invention is presented as a powder, a stick, a lotion or a sanitary napkin.
• the cosmetic composition has in addition to capsules C, ingredients in the form of solid particles such as talcum powder and similar powders.
• ingredients in the form of solid particles such as talcum powder and similar powders.
• the microcapsules C not be destroyed by mechanical pressure during manufacture and for this purpose pre-mixtures are advantageously used, the envelopes being thicker and capsules C being smaller.
• envelope E of the microcapsules is a compound that is sufficiently elastic so that the capsules C are not destroyed in spraying by rapid increase in volume due to sudden decompression.
• the present invention relates especially to deodorant cosmetic compositions, but it is obvious that it also applies very generally to all compositions for treatment that are used for body care in which perspiration plays a significant role either directly or indirectly.
• microcapsules C whose envelope E is coated on the outside at least by a thin envelope here designated E, said thin envelope being inert with reference to the vehicle of the cosmetic composition and having a degree of elasticity which is greater than that of envelopes E, the said envelopes being water-permeable and subject to destruction by an acid or by a waterethanol mixture.
• envelopes E allows use of envelopes E which have the above mentioned properties but for which it is not necessary that the compounds comprising them be inert to the vehicle of the cosmetic composition.
• the association of envelopes E and E allows therefore the attaining more readily of microcapsules of the invention especially in the case in which the cosmetic composition is stored as aerosol since the microcapsules must not be destroyed at the moment of projection.
• the envelopes E may be prepared with the polymers and colloids already mentioned.
• a vehicle (perfumed powder) is prepared with the following mixture:
• talc 98 perfume 2 There is also prepared, by grinding, a mixture of:
• a perfumed alcohol solution is prepared using:
• microencapsulated in polyvinyl alcohol the size of the microcapsules being from 30 to 50 microns.
• This lotion is used with a sprayer which must be agitated just before use.
• the microcapsules are deposited on the skin at the selected places, and the perspiration dissolves their jacket when it forms, releasing the active products and thus suppressing any troublesome odor.
• Aerosol deodorant lotion Hexachlorophene is microencapsulated, using polyvinyl acetate or ethyl cellulose, the size of the microcapsules being 30 microns on the average.
• a perfumed alcohol is then prepared with:
• Example 3 To prepare a deodorant solution there is added 5 percent by weight microcapsules to the original mixture, and this is stored as aerosol as in Example 3, the can to be agitated just before use.
• the anhydrous deodorant composition is deposited on the skin at the selected places: the microcapsule envelopes dissolve with appearance of sweat, thus effectin g the desired deodorizing action.
• microencapsulated in an acetophthalate cellulose polymer there is incorporated in it 0.5 percent hexachlorophene microencapsulated in an acetophthalate cellulose polymer, the size of the microcapsules being of the order of to 50 microns.
• microcapsules are uniformly distributed in the pasty mass which is extruded, cooled and cut into sticks which are then packaged.
• the delayed deodorant action is obtained in the same conditions as in the preceding examples.
• EXAMPLE 6 Deodorant sanitary napkin The following solution is microencapsulated: isopropyl myristate 60 Microencapsulation is effected with polyvinyl acetate, the size of the microcapsules being on an average 30 to 50 microns.
• microcapsules are homogeneously distributed in the body of a napkin made of cellulose batting or else they are distributed in alternating layers on a fabric of pa er or cotton.
• a sanitary napkin consisting essentially of a body of an absorbent material of cellulose batting or layered paper or cotton fabric and a multiplicity of individual microcapsules enveloping effective amounts of a bactericidal and fungicidal deodorant agent, said microcapsules being homogeneously distributed in said cellulose batting or in alternating layers on said paper or cotton fabric, the size of each of said microcapsules ranging from 30-500 microns, the walls of said microcapsules being permeable or soluble on contact with the fluid associated with menstrual discharge whereby the release of said deodorant agent from said microcapsules in said sanitary napkin is delayed until contact with sufficient amounts of said fluid to permeate or solubilize the walls of said homogeneously distributed microcapsules, said walls of said microcapsules being made from a material selected from the group consisting of gelatin, ethyl cellulose, cellulose acetophthalate, polyvinyl alcohol and polyvinyl acetate and the density of
• microcapsules have a size ranging from 30 50 microns. 5O

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• Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Public Health (AREA)
• Animal Behavior & Ethology (AREA)
• General Health & Medical Sciences (AREA)
• Veterinary Medicine (AREA)
• Epidemiology (AREA)
• Engineering & Computer Science (AREA)
• Birds (AREA)
• Materials Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Hematology (AREA)
• Biomedical Technology (AREA)
• Cosmetics (AREA)
• Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=19725912

Family Applications (1)

Country Status (9)

Cited By (44)

Families Citing this family (15)

Family Cites Families (3)

• 1969
  • 1969-02-04 LU LU57907D patent/LU57907A1/xx unknown
• 1970
  • 1970-02-03 FR FR7003783A patent/FR2033294B1/fr not_active Expired
  • 1970-02-03 DE DE19702004872 patent/DE2004872A1/de active Pending
  • 1970-02-03 CH CH154270A patent/CH516309A/fr not_active IP Right Cessation
  • 1970-02-03 IT IT67338/70A patent/IT1011504B/it active
  • 1970-02-03 CA CA073,893*7A patent/CA952025A/en not_active Expired
  • 1970-02-04 US US8721A patent/US3691271A/en not_active Expired - Lifetime
  • 1970-02-04 BE BE745456D patent/BE745456A/xx unknown
  • 1970-02-04 GB GB5286/70A patent/GB1285244A/en not_active Expired

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