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
  • A61K8/18—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
  • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
  • A61K8/37—Esters of carboxylic acids
• • 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

Definitions

• the present invention is concerned with aerosol spray anti-perspirant compositions of the type in which the astringent material is suspended as a solid in an anhydrous liquid vehicle and dispensed in this form and more particularly with anti-perspirant compositions of this type which have substantially reduced propensity to stain clothing.
• esters of mono-, di-basic acids which are miscible with the propellant and which are selected from the group consisting of methyl lactate, ethyl lactate, propyl lactate, isopropyl lactate, butyl lactate, dimethyl succinate, diethyl succinate, diisopropyl succinate, dipropyl succinate, dibutyl succinate, diethyl malate, diethyl maleate, diethyl tartrate, diisopropyl tartrate, dipropyl tartrate, dibutyl tartrate, dimethyl glutarate, diethyl glutarate, diisopropyl glutarate, dipropyl glutarate, dibutyl glutarate, dimethyl adipate and diethyl adipate.
• Aerosol anti-perspirant compositions in which the astringent material, e.g., aluminum chlorohydroxide, is dispensed as a solid suspended in an anhydrous hydrophobic liquid vehicle such as mineral oil, isopropyl myristate or isopropyl palmitate have been widely marketed. Although such compositions are elfective in reducing perspiration they have a tendency to impart stains to clothing which (stains) remain subsequent to laundering.
• the present invention is concerned with providing anti-perspirant compositions of this type which have substantially reduced tendency to stain clothing.
• the staining due to such compositions can be substantially reduced by using as the liquid vehicle for said compositions an ester which is miscible with the propellant and which is selected from the group consisting of: methyl lactate, ethyl lactate, propyl lactate, isopropyl lactate, butyl lactate, dimethyl succinate, diethyl succinate, diisopropyl succinate, dipropyl succinate, dibutylsuccinate, diethyl malate, diethyl maleate, diethyl tartrate, diisopropyl tartrate, dipropyl tartrate, dibutyl tartrate, dimethyl glutarate, diethyl glutarate, diisopropyl glutarate, dipropyl glutarate, dibutyl glutarate, dimethyl adipate and diethyl adipate.
• an ester which is miscible with the propellant which is selected from the group consisting of: methyl lactate, ethyl lactate, propy
• the astringent may be selected from any of the materials of this nature which are available, e.g. aluminum sulfate, aluminum chloride, aluminum chlorhydroxides such as A1(OH) Cl and Al (OH) Cl aluminum sulfocarbolate, zinc chloride, Zinc sulfocarbolate, zinc sulfate, zirconium oxychloride, sodium zirconium lactate, sodium zirconium glycolate, zirconyl hydroxy chloride, zirconium sulfate, physical mixtures of the above, and mixed compounds and complexes comprising 2 or more of the above cations such as a mixed aluminum zirconium chlorhydroxide complex.
• aluminum sulfate aluminum chloride
• aluminum chlorhydroxides such as A1(OH) Cl and Al (OH) Cl
• aluminum sulfocarbolate zinc chloride
• Zinc sulfocarbolate zinc sulfate
• zirconium oxychloride sodium zir
• the preferred astringents for use in the composition of this invention are the aluminum chlorhydroxides.
• the amount of astringent employed may be varied but in most compositions it will be present in amounts ranging between about 0.5% to about 3,333,720 Patented Sept. 3, 1974 10% by weight of the total composition including the propellant. In preferred compositions, it will be present in amounts ranging between about 1 to about 7.5%.
• the astringent should be finely ground in order to prevent the valve from clogging. Usually it the particle size is less than 100 microns and preferably less than 60 microns, clogging will be held to a minimum.
• the ester is present in amounts such that in combination with the propellant it will be the continuous phase of the dispersion or suspension. As can be appreciated, this amount will vary depending upon the amount of astringent employed. In most instances, the ester will comprise from about 0.5 to about 50% by weight of the total composition including the propellant. In preferred compositions, the ester is present in amounts ranging between about 0.5 to about 15%.
• any of the materials which have been employed as propellants in aerosol compositions may be used in the compositions of the present invention; provided of course that they are miscible with the liquid vehicle.
• the propellant will generally be present in amounts which will be sufficient to dispense all of the composition at a moderate velocity. In most instances the compositions will have vapor pressures ranging between 15 and p.s.i.g. and preferably between 20 and 40. Generally the propellant will be present in amounts varying between 50 to 98% by weight of the total composition and preferably between 70 to 98%.
• compositions of the present invention will further include a suspending, dispersing of flocculating agent to prevent the astringent from agglomerating or settling.
• a suspending, dispersing of flocculating agent to prevent the astringent from agglomerating or settling.
• agents such as clays, such as bentonite, modified clays, e.g. the reaction product of bentonite and a surface active quaternary salt, silicas such as colloidal silicon dioxide, silicates, polymeric suspending agents such as cellulose and derivatives thereof and surfactants such as high molecular weight amides, e.g. lauryl monoethanolamide.
• the compositions may further include other ingredients such as perfumes, emollients, talc, starches, antibacterials, etc.
• compositions of the present invention in reducing stain was demonstrated by using the esters disclosed herein on a weight basis in place of isopropyl palrnitate in a standard formula and measuring the extent of staining it caused as compared with the composition containing isopropyl palmitate.
• the standard formula was as follows:
• the swatches were laundered in an apartment size washer for 15 minutes in 10 liters of hot (about 55 C.) tap water containing 30 g. of an alkyl aryl sulfonate detergent and 100 ml. of a commercial hypochlorite bleach. The swatches were rinsed for two 10 minute cycles in hot tap water and then for a 10 minute cycle in cool distilled water. The swatches were dried for 24 hours at 60 C. in a 220 Volt Freas Model 625 forced draft oven.
• the Photovolt Reflectometer was warmed up for 30 minutes and three readings were made of the stained area. The cloth was rotated 90 and three additional readings were made. The average of the six readings in the stained area was referred to as R (7) Three reflectance readings were taken in the edge or non-stained areas and the cloth was rotated 90 and three additional readings were taken. The average of the six readings in the non-stain area were were referred to as RE.
• Rg average of six reflectance readings in stain areas.
• R reflectance of unused, unwashed, virgin material.
• the propensity of the formulation to stain clothing was indicated by an increase in the stain index as the above cycle comprising steps 4 through 7 was continually repeated.
• esters within the scope of the present invention have substantially lower stain indices than the isopropyl palmitate.
• An aerosol composition having improved anti-stain properties comprising 0.5% to 10% by weight of an astringent material selected from the group consisting of aluminum sulfate, aluminum chloride, aluminum chlorhydroxide, aluminum sulfocarbolate, zinc chloride, zinc sulfocarbolate, zinc sulfate, zirconium oxychloride, sodium zirconium lactate, sodum zirconium glycolate, zirconyl hydroxy chloride, zirconium sulfate and aluminum zirconium chlorhydroxide complex, 50 to 98% by weight of a propellant selected from the group consisting of dichlorodifluoromethane, trichloromonofiuoromethane, trichlorotrifluoroethane, tetrafluorodichloroethane, butane, propane, isobutane and mixtures and blends thereof and 0:5 to 50% by Weight of a vehicle, said astringent material being insoluble
• composition as defined in claim 1 wherein said astringent material is aluminum chlorhydroxide.
• composition as defined in claim 1 wherein said vehicle is dibutyl succinate.
• composition as defined in claim 3 wherein the astringent material is aluminum chlorhydroxide.
• composition as defined in claim 1 wherein said vehicle is dibutyl glutarate.

Landscapes

• Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Animal Behavior & Ethology (AREA)
• General Health & Medical Sciences (AREA)
• Public Health (AREA)
• Veterinary Medicine (AREA)
• Birds (AREA)
• Epidemiology (AREA)
• Emergency Medicine (AREA)
• Chemical & Material Sciences (AREA)
• Inorganic Chemistry (AREA)
• Detergent Compositions (AREA)

Priority Applications (3)

Applications Claiming Priority (1)

Publications (1)

Family

ID=23038167

Family Applications (1)

Country Status (3)

Cited By (5)

Families Citing this family (2)

• 1972
  • 1972-07-14 US US00272043A patent/US3833720A/en not_active Expired - Lifetime
• 1973
  • 1973-07-05 CA CA175,779A patent/CA1010791A/en not_active Expired
  • 1973-07-13 FR FR7325889A patent/FR2192798B3/fr not_active Expired

Also Published As

Similar Documents