US3585982A - Self-heating composition - Google Patents
Self-heating composition Download PDFInfo
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- US3585982A US3585982A US836314A US3585982DA US3585982A US 3585982 A US3585982 A US 3585982A US 836314 A US836314 A US 836314A US 3585982D A US3585982D A US 3585982DA US 3585982 A US3585982 A US 3585982A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/52—Details
- B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
- B65D75/5805—Opening or contents-removing devices added or incorporated during package manufacture for tearing a side strip parallel and next to the edge, e.g. by means of a line of weakness
- B65D75/5811—Opening or contents-removing devices added or incorporated during package manufacture for tearing a side strip parallel and next to the edge, e.g. by means of a line of weakness and defining, after tearing, a small dispensing spout, a small orifice or the like
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D27/00—Shaving accessories
- A45D27/02—Lathering the body; Producing lather
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- 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q9/00—Preparations for removing hair or for aiding hair removal
- A61Q9/02—Shaving preparations
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- 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
- A61K2800/24—Thermal properties
- A61K2800/242—Exothermic; Self-heating; Heating sensation
Definitions
- the present invention is concerned with selfheating compositions and more specifically with self-heating cosmetic compositions such as aqueous shaving creams. 1n the compositions disclosed herein, at least one of the components of a heat-generating combination are encapsulated in rupturable capsules and dispersed in the composition. in especially useful embodiments, the capsules have melting points at or below the temperatures which will be generated in the composition.
- One object of the present invention is to provide self-heating compositions.
- Another object of the present invention is to provide selfheating compositions which provide heat over a prolonged period.
- Still another object of the present invention is to provide self-heating compositions which are also self-foaming.
- a further object of the present invention is to provide compositions such as set forth above which can be packaged in low-pressure containers or single-use packets.
- FIG. 1 is a perspective front view showing a single-use packet containing a composition within the scope of the present invention.
- FIG. 2 is a perspective front view of another single-use packet containing a composition within the scope of the present invention.
- compositions such as shaving creams are presently available in aerosol containers.
- Such compositions involve the use of a combination of heat-generating components which effect an exothermic reaction when in contact with one another.
- the aerosol containers which are used for such compositions generally comprise at least two separate compartments wherein the heat-generating components can be stored separately, along with the other ingredients, until time of use.
- the heat-generating components are dispensed from the separate compartments through concurrently operated valves into a common discharge passageway where they come together to effect the exothermic reaction and thereby elevate the temperature of the composition.
- compositions of the present invention eliminate the need for such multicompartment containers and close tolerance valving systems.
- the need for multicompartment containers and close tolerance valving systems is eliminated by encapsulating at least one of the heat-generating components in frangible capsules and dispersing the capsules in the composition.
- the second heatgenerating component may be added directly to the composition or it may also be encapsulated and dispersed in the composition.
- the capsules are ruptured by mechanical force, e.g. by rubbing the composition in ones hands to release the heat-generating components and bring them together to effect the exothermic reaction.
- the present invention is broadly applicable to a wide range of hydrophilic and hydrophobic compositions. It is particularly useful in aqueous-based pharmaceutical and cosmetic compositions such as shaving creams wherein heat is desired to increase the effectivenes of the composition.
- Processes for encapsulating the heat-generating components are known. As examples of such processes, mention may be made of chemical methods such as disclosed in U.S. Pat. Nos. 2,800,457, 2,800,458, and 3,155,590 mechanical methods such as disclosed in U.S. Pat. Nos. 3,0l5,l28, and 3,423 ,489 and electrostatic processes such as disclosed in U.S. Pat. No. 3,159,874. Generally, such processes comprise forming a continuous wall of the encapsulating material around the material to be encapsulated and thereafter solidifying the encapsulating material. A wide variety of substances have been found useful as encapsulating materials.
- Such materials in addition to being capable of being deposited around the material to be encapsulated, also have to be inert and impermeable with respect to both the compositions in which they are to be dispersed as well as the encapsulated material.
- the encapsulating material and the composition in which it is to be dispersed are hydrophilic, the encapsulating material will be of a hydrophobic nature and if the encapsulated material and the composition in which it is to be dispersed are hydrophobic, the encapsulating material will be of a hydrophilic nature.
- typical encapsulating materials mention may be made of gelatin, ethyl cellulose, polymethylmethacrylate, wax, gum arabic, starch, paraffin, polyethylene, polyvinyl alcohol, and polystyrene.
- encapsulation processes such as set forth above are capable of producing capsules having diameters varying from about a few microns up to about 4000 microns and even larger.
- the size of the capsules may be chosen to fit the particular need.
- the rupturing can be facilitated by using the larger diameter capsules, e.g. 2000 microns and above.
- the heat-generating components for use in the compositions of the present invention may be broadly selected from the various combinations of materials which effect an exothermic reaction when in contact with one another.
- the heat-generating components and the byproducts of the exothermic reaction should be nontoxic and nonirritating
- types of heat-generating combinations mention may be made of the combination of an acid and base and the combination of a solvent and a solute having an appreciable heat of solution or dilution in the solvent, e.g. the combination of water and ethylene glycol and the combination of water and salts such as aluminum sulfate, calcium chloride, copper sulfate, ferric chloride, magnesium chloride, magnesium sulfate, etc.
- the latter combinations may be conveniently used in aqueous-based composition by merely encapsulating the salt in a water-insoluble, water-impenneable encapsulating material and dispersing the capsules in the composition.
- the combination of an oxidizing reagent and a reducing reagent are used as the heat-generating components.
- Such oxidizing and reducing reagents may be selected broadly from the various compounds of this nature available.
- oxidizing agents mention may be made of chlorates, perchlorates, permanganates, persulfates, peroxides, nitrates, metal oxides, such as copper oxide, lead oxide, and iron oxide, and perborates.
- the preferred oxidizing agents include hydrogen peroxide, urea peroxide, sodium peroxide, sodium perborate, sodium persulfate, ammonium persulfat e, potassium persulfate, and mixtures of any of two or more of the foregoing.
- reducing reagents mention may be made of metals such as magnesium, zinc, aluminum and iron; sulfites, thio-sulfates, thioureas, imidazolinethiones, thiotriazoles, thiopyridines, thio-pyrimidines, thiols, thioacids, sulfoxides, xanthates, orthoand para-polyhydroxy benzenes, aldehydes, and glycols.
- metals such as magnesium, zinc, aluminum and iron
- R may be hydrogen, lower alltyl, lower hydroxyallty l, lower alkoxy, or lower alkanoyl
- R may be any of the foregoing except hydrogen and may in addition be phenyl.
- R may be any of the foregoing except hydrogen and may in addition be phenyl.
- such compounds are 1-phenyl-2-thio-barbituric acid, l-phenyl-5-ethyl-2-thio-barbituric acid, l-methyl-2-thiobarsuch as the heat of reaction of the components; the specific heat of the composition and the ultimate temperature desired.
- the heat-generating components will be used in amounts which will provide a sensible temperature rise to the composition (e.g. a rise of 25 F. from room temperature in a minute).
- the amounts which will produce such a rise will vary from system to system but can be readily calculated or empirically determined.
- aqueous systems such as shaving creams
- when employing the heatgenerating components disclosed in U.S. Pat. No. 3,342,4l8 as little as 0.8 percent by weight of oxidant based on the total weight of the aqueous composition will suffice to produce a sensible temperature rise when a stoichiometrically equivalent amount of reductant is used.
- at least 1 percent by weight of the oxidant, with a stoichiometrically equivalent amount of the reductant is employed.
- catalysts or amounts of one of the heatgenerating components in excess of the stoichiometric amount may be used to promote or accelerate the heat-generating reaction.
- such materials may be separately encapsulated or they may be added to the phase of the composition in which they are inactive.
- the type of catalyst will depend upon the nature of the heat-generating components.
- catalysts which can be employed in oxidant-reductant systems such as disclosed in U.S. Pat. No. 3,341,4l8 mention may be made of the alkali metal and ammonium salts of molybdates and tungstates.
- the compositions are self'foaming as well as self-heating. This is accomplished by incorporating into the foamable composition a foam-generating material which is insoluble or only slightly soluble in the composition e.g. less than 2 gms. per 100 cc. and which is a liquid at room temperature, e.g. 25 C. but boils at the elevated temperature which will result from the reaction of the heat-generating components.
- the foam-generating materials will have boiling points between about 95 F. to about 160 F.
- foam-generating materials mention may be made of pentane, hexane, dichlorotetrafluoroethane and trichlorotrifluoroethane.
- the foam-generating materials may be added directly to the compositions.
- the foamgenerating materials may be encapsulated. At time of use, the capsules containing the foam-generating materials are ruptured along with those containing the heat-generating components to provide a self-heating, self-foaming composition.
- the heat-generating components are encapsulated in thermoplastic materials which have melting points at or below the temperature which will be generated in the compositions.
- thermoplastic materials which have melting points at or below the temperature which will be generated in the compositions.
- Such embodiments make it possible to provide compositions which are able to generate heat over a prolonged period and thus may be called self-sustaining.
- the heat-generating components are present in amounts in excess of that which is necessary to bring the composition to the desired or specified temperature. lnusing such self-sustaining compositions, at least that portion of the capsules are ruptured which will bring the composition or a portion of it to the temperature at which the walls of the unruptured capsules will melt.
- compositions which are self-foaming, as well as self-heating the foaming action may be similarly sustained by also incorporating the foam-generating materials into similar capsules.
- the compositions are compounded so that they may be elevated to the desired temperature over a prolonged period.
- This is accomplished by incorporating the heat-generating components in a plurality of thermoplastic capsules which have sequentially higher melting points e.g. a first portion of the heatgenerating components are incapsulated in an encapsulating material which melts at e.g. F., a second portion is encapsulated in a material which melts at F and so on.
- the melting points of the encapsulating materials will lie in a range of temperatures which are above the temperature at which the composition will normally be stored and at or below the desired temperature to which the composition is to be heated. When it is desired that the compositions also be self-sustaining, this is readily accomplished by using an excess of the heat-generating components and incorporating the excess components in the highest melting encapsulating material.
- compositions disclosed above are especially useful in heating pads, garments, etc.
- the fragments of the ruptured capsules give the compositions a gritty feel and are undesirable.
- Such undesirable characteristics may be substantially reduced by encapsulating the reagents in thermoplastic materials, such as taught above, which have melting points at or below the temperature which will be generated in the compositions by the reaction of the heat-generating components. in the melted state such encapsulating materials are usually readily dispersible in the compositions and thereby provide a convenient mode of eliminating the undesirable feel of the solid shell fragments.
- thermoplastic materials such as taught above, which have melting points at or below the temperature which will be generated in the compositions by the reaction of the heat-generating components. in the melted state such encapsulating materials are usually readily dispersible in the compositions and thereby provide a convenient mode of eliminating the undesirable feel of the solid shell fragments.
- surface active agents present which will facilitate such dispersion. In compositions where such surface active agents are not present, it is preferable, if the formulation will tolerate it, to add such surface active agents to aid in the dispersion.
- thermoplastic encapsulating materials for use in this invention may be selected from the low melting forms of the encapsulating materials previously mentioned above.
- a particularly useful class of thermoplastic materials for use in such embodiments are the waxes and especially beeswax (solidification point 605 to 62 C).
- Such waxes in addition to providing a means of accomplishing the objectives set forth above may also, in some instances, be a useful ingredient in the composition or provide it with desirable characteristics such as body.
- thermoplastic capsules for use in the above embodiments may be readily prepared by known processes.
- the thermoplastic encapsulating material is dispersed in an external phase which is a nonsolvent for both the encapsulating material and the material to be encapsulated.
- tions finch compositions may be illustrated by the following shaving cream formulation which is prepafed as set forth below.
- An 8.2 percent aqueous hydrogen peroxide solution (the oxidant) is encapsulated in beeswax by methods such as set forth above, to provide capsules having an average diameter of at least 2000 microns.
- the capsules are uniformly dispersed in a shaving cream formulation having the following composition by weight:
- the capsules are added to the formulation in amounts such that there will be about one part by weight of the aqueous peroxide solution present for each three parts of the shaving cream formulation.
- an amount of it, sufiicient for one shave, is applied to the hand and rubbed to rupture the capsules and release the aqueous peroxide solu tion.
- the peroxide reacts with the l-phenyl-S- ethyl-Z-thiobarbituric acid reductant to elevate the temperature of the composition.
- the rubbing is continued until the melted capsule fragments are dispersed in the composition and the resulting hot shaving cream is then applied to the beard.
- a foam-generating material such as described above
- the use of about 0.75 to about 2.0 gram molecular weights of the foamgenerating material per 1000 gms of the aqueous composition will provide a useful foam.
- compositions of the present invention it is generally not advisable to use squeeze-type tubes because a certain portion of the capsules in the unused portion of the composition will be ruptured during the dispensing operation. If it is desired to package the compositions in bulk, it is best to use wide-necked jars which will enable the user to gingerly remove the portion he wishes to use without rupturing the capsules in the unused portion of the composition.
- the viscosity of the compositions should preferrably be such that the capsules will remain uniformly suspended in the composition until time of use and will not require stirring.
- Such suspension of the capsules may be achieved by employing in the compositions one or more of the many thickening and suspending reagents which are commercially available.
- the packet 1 comprises a completely enclosed chamber 3 which is bounded by resilient sidewalls 4 which are sealed to each other along their peripheries.
- the chamber opens into a narrow dispensing channel 7.which is 'closed 08' by a tear-off cap 9.
- a shaving cream composition 5 containing a plurality of first 11 and second 13 capsules.
- the first capsules 1] contain a heat-generating material which is reactive with another heat-generating material which is disposed in the shaving cream composition and the second capsules 13 contain a foam-generating material.
- the sidewalls 4 of the packet l are pressed together to rupture the capsules l1 and 13.
- the tear-off cap is removed. Under the pressure of the foam-generating material, the hot shaving composition is forced out of the packet l for use.
- FIG. 2 there is shown a packet similar to that shown in claim 1, except that it is encased by a rigid protective sheath [5 which prevents the accidental rupturing of the capsules ll and 13.
- the sheath 15 is provided with an opening 17 in its top through which the capped dispensing channel 7 protrudes and in its 15 sidewalls there are positioned openings 21 which provide access to the resilient sidewalls 4 so that they may be pressed together during use to rupture the capsules 11 and 13.
- the foam-generating material when desired, may be disposed directly in the composition.
- the heat-generating materials and the foam-generating materials may be disposed in single large frangible capsules which are positioned contiguous to the composition.
- the heat generating component and the foam-generating material are inert with respect to each other, it should be understood that they may be encapsulated in the same capsules.
- An aqueous self-heating composition comprising a combination of at least first and second heat-generating components which when in contact with one another effect an exothermic reaction; at least one of said components which is nonaqueous being encapsulated into a plurality of frangible capsules which are dispersed in said aqueous composition, the encapsulating material for said capsules being both inert and impermeable with respect to the aqueous composition and the heat-generating components.
- a self-heating composition as defined in claim 2 which includes a foam-generating material, said foam-generating material being a liquid at room temperature and having a boiling point which is below the temperature which is generated in the composition when said heat-generating components effect the exothermic reaction.
- a self-heating composition as defined in claim 1 which includes a foam-generating material, said foam-generating material being a liquid at room temperature and having a boiling point which is below the temperature which is generated in the composition when said heat-generating components effect the exothermic reaction.
- a single-use packet containing a self-heating composition comprising an enclosed chamber in which said composition is disposed, said chamber being bound by at least one resilient wall and having a dispensing opening which I i packet as defined in claim 8 wherein said composition also comprises a foam-generating material, said foam-generating material being a liquid at room temperature and having a boiling point below the temperature which is generated in the composition when said heat-generating components effect the exothermic reaction.
- An aqueous self-heating composition which is capable of evolving heat over a prolonged period, said composition comprising a combination of at least first and second heatgenerating components which in contact with one another effect an exothermic reaction said combination of heat-generating components being present in amounts in excess of that which is required to bring the composition to a desired specified temperature, at least one of said components which is nonaqueous being encapsulated into a plurality of frangible capsules which are dispersed in said composition, the encapsulating material for said capsules being both inert and impermeable with respect to the aqueous composition and the heat-generating components and having a melting point at or below said specified temperature whereby upon rupturing at least that portion of the capsules which will bring at least a portion of the composition above said melting point, the unruptured capsules will gradually melt over a prolonged period and continuously release additional quantities of the heatgenerating component.
- An aqueous self-heating composition which rises gradually to a specified temperature over a prolonged period said composition comprising a combination of at least first and second heat-generating components which in contact with one another effect an exothermic reaction, at least one of said heat-generating components which is nonaqueous being encapsulated in a plurality of encapsulating materials, said plurality of encapsulating materials being inert and impermeable with respect to said composition and said heat-generating components and having sequentially higher melting points which are above the temperature at which the aqueous composition is normally stored and at or below said specified temperature.
- a self-heating composition as defined in claim 16 which evolves heat over a prolonged period when said composition reaches the specified temperature said composition comprising said heat-generating components in amounts in excess of that required to elevate the composition to said specified temperature, the excess of heat-generating components being encapsulated in the encapsulating material which has the highest melting point in said plurality of encapsulating materials.
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Abstract
The present invention is concerned with self-heating compositions and more specifically with self-heating cosmetic compositions such as aqueous shaving creams. In the compositions disclosed herein, at least one of the components of a heatgenerating combination are encapsulated in rupturable capsules and dispersed in the composition. In especially useful embodiments, the capsules have melting points at or below the temperatures which will be generated in the composition.
Description
United States Patent James A. Hollinshead Winchester, Mass.
June 25, 1969 June 22, 1971 The Gillette Company Gillette Park, Boston, Mas.
Inventor Appl. No. Filed Patented Assignee SELF-HEATING coMPosmoN 17 Claims, 2 Drawing Figs.
US. Cl.
]nt.Cl Field of Search Relerenees Cited UNITED STATES PATENTS 3/1965 Caillouette ct a1 126/263 X 3,240,396 3/1966 Friedenberg 126/263 X 3,378,333 4/1968 Brite .i 126/263 X 3,473,542 10/1969 Chu et al. 126/263 X Primary Examiner-Charles J. Myhre AttomeysPhilip Colman, Oistein J. Bratlie, William M.
Anderson and Scott R. Foster ABSTRACT: The present invention is concerned with selfheating compositions and more specifically with self-heating cosmetic compositions such as aqueous shaving creams. 1n the compositions disclosed herein, at least one of the components of a heat-generating combination are encapsulated in rupturable capsules and dispersed in the composition. in especially useful embodiments, the capsules have melting points at or below the temperatures which will be generated in the composition.
SELF-HEATING COMPOSITION One object of the present invention is to provide self-heating compositions.
Another object of the present invention is to provide selfheating compositions which provide heat over a prolonged period.
Still another object of the present invention is to provide self-heating compositions which are also self-foaming.
A further object of the present invention is to provide compositions such as set forth above which can be packaged in low-pressure containers or single-use packets.
Other objects should be clear from the following detailed description, claims and drawing, wherein:
FIG. 1 is a perspective front view showing a single-use packet containing a composition within the scope of the present invention, and
FIG. 2 is a perspective front view of another single-use packet containing a composition within the scope of the present invention.
Self-heating compositions such as shaving creams are presently available in aerosol containers. Generally such compositions involve the use of a combination of heat-generating components which effect an exothermic reaction when in contact with one another. The aerosol containers which are used for such compositions generally comprise at least two separate compartments wherein the heat-generating components can be stored separately, along with the other ingredients, until time of use. Upon use, the heat-generating components are dispensed from the separate compartments through concurrently operated valves into a common discharge passageway where they come together to effect the exothermic reaction and thereby elevate the temperature of the composition. Although such aerosol-dispensed, self-heating compositions have met with considerable success, they require multicompartment containers and close tolerance valving systems in order to store the heat-generating components separately and to dispense said components in the proper stoichiometric amounts under a myriad of operating modes and conditions. The compositions of the present invention eliminate the need for such multicompartment containers and close tolerance valving systems.
in the self-heating compositions of the present invention the need for multicompartment containers and close tolerance valving systems is eliminated by encapsulating at least one of the heat-generating components in frangible capsules and dispersing the capsules in the composition. The second heatgenerating component may be added directly to the composition or it may also be encapsulated and dispersed in the composition. During use, the capsules are ruptured by mechanical force, e.g. by rubbing the composition in ones hands to release the heat-generating components and bring them together to effect the exothermic reaction. Generally, the present invention is broadly applicable to a wide range of hydrophilic and hydrophobic compositions. It is particularly useful in aqueous-based pharmaceutical and cosmetic compositions such as shaving creams wherein heat is desired to increase the effectivenes of the composition.
Processes for encapsulating the heat-generating components are known. As examples of such processes, mention may be made of chemical methods such as disclosed in U.S. Pat. Nos. 2,800,457, 2,800,458, and 3,155,590 mechanical methods such as disclosed in U.S. Pat. Nos. 3,0l5,l28, and 3,423 ,489 and electrostatic processes such as disclosed in U.S. Pat. No. 3,159,874. Generally, such processes comprise forming a continuous wall of the encapsulating material around the material to be encapsulated and thereafter solidifying the encapsulating material. A wide variety of substances have been found useful as encapsulating materials. Such materials, in addition to being capable of being deposited around the material to be encapsulated, also have to be inert and impermeable with respect to both the compositions in which they are to be dispersed as well as the encapsulated material. Generally, if the encapsulated material and the composition in which it is to be dispersed are hydrophilic, the encapsulating material will be of a hydrophobic nature and if the encapsulated material and the composition in which it is to be dispersed are hydrophobic, the encapsulating material will be of a hydrophilic nature. As examples of typical encapsulating materials, mention may be made of gelatin, ethyl cellulose, polymethylmethacrylate, wax, gum arabic, starch, paraffin, polyethylene, polyvinyl alcohol, and polystyrene.
Generally, encapsulation processes such as set forth above are capable of producing capsules having diameters varying from about a few microns up to about 4000 microns and even larger. in the compositions of the present invention, the size of the capsules may be chosen to fit the particular need. In embodiments wherein the capsules are intended to be ruptured by hand, the rupturing can be facilitated by using the larger diameter capsules, e.g. 2000 microns and above.
The heat-generating components for use in the compositions of the present invention may be broadly selected from the various combinations of materials which effect an exothermic reaction when in contact with one another. As can be appreciated, when the composition is to be topically applied, the heat-generating components and the byproducts of the exothermic reaction should be nontoxic and nonirritating As examples of types of heat-generating combinations, mention may be made of the combination of an acid and base and the combination of a solvent and a solute having an appreciable heat of solution or dilution in the solvent, e.g. the combination of water and ethylene glycol and the combination of water and salts such as aluminum sulfate, calcium chloride, copper sulfate, ferric chloride, magnesium chloride, magnesium sulfate, etc. The latter combinations may be conveniently used in aqueous-based composition by merely encapsulating the salt in a water-insoluble, water-impenneable encapsulating material and dispersing the capsules in the composition.
In preferred embodiments of the present invention, the combination of an oxidizing reagent and a reducing reagent are used as the heat-generating components. Such oxidizing and reducing reagents may be selected broadly from the various compounds of this nature available. As examples of oxidizing agents, mention may be made of chlorates, perchlorates, permanganates, persulfates, peroxides, nitrates, metal oxides, such as copper oxide, lead oxide, and iron oxide, and perborates. The preferred oxidizing agents include hydrogen peroxide, urea peroxide, sodium peroxide, sodium perborate, sodium persulfate, ammonium persulfat e, potassium persulfate, and mixtures of any of two or more of the foregoing. As examples of reducing reagents mention may be made of metals such as magnesium, zinc, aluminum and iron; sulfites, thio-sulfates, thioureas, imidazolinethiones, thiotriazoles, thiopyridines, thio-pyrimidines, thiols, thioacids, sulfoxides, xanthates, orthoand para-polyhydroxy benzenes, aldehydes, and glycols. A preferred class of reductants for use in compositions which are to be topically applied is disclosed in U.S. Pat. No. 3,341,418. Such compounds may be represented by the structure:
in which R, may be hydrogen, lower alltyl, lower hydroxyallty l, lower alkoxy, or lower alkanoyl, and R, may be any of the foregoing except hydrogen and may in addition be phenyl. Among such compounds, are 1-phenyl-2-thio-barbituric acid, l-phenyl-5-ethyl-2-thio-barbituric acid, l-methyl-2-thiobarsuch as the heat of reaction of the components; the specific heat of the composition and the ultimate temperature desired. Usually, the heat-generating components will be used in amounts which will provide a sensible temperature rise to the composition (e.g. a rise of 25 F. from room temperature in a minute). As can be appreciated, the amounts which will produce such a rise will vary from system to system but can be readily calculated or empirically determined. in aqueous systems, such as shaving creams, when employing the heatgenerating components disclosed in U.S. Pat. No. 3,342,4l8 as little as 0.8 percent by weight of oxidant based on the total weight of the aqueous composition will suffice to produce a sensible temperature rise when a stoichiometrically equivalent amount of reductant is used. In preferred embodiments of such aqueous compositions, at least 1 percent by weight of the oxidant, with a stoichiometrically equivalent amount of the reductant, is employed.
When desired, catalysts or amounts of one of the heatgenerating components in excess of the stoichiometric amount may be used to promote or accelerate the heat-generating reaction. When employing catalysts such materials may be separately encapsulated or they may be added to the phase of the composition in which they are inactive. As can be appreciated, the type of catalyst will depend upon the nature of the heat-generating components. As examples of catalysts which can be employed in oxidant-reductant systems such as disclosed in U.S. Pat. No. 3,341,4l8 mention may be made of the alkali metal and ammonium salts of molybdates and tungstates.
In especially useful embodiments of the present invention, the compositions are self'foaming as well as self-heating. This is accomplished by incorporating into the foamable composition a foam-generating material which is insoluble or only slightly soluble in the composition e.g. less than 2 gms. per 100 cc. and which is a liquid at room temperature, e.g. 25 C. but boils at the elevated temperature which will result from the reaction of the heat-generating components. in preferred embodiments of the present invention, the foam-generating materials will have boiling points between about 95 F. to about 160 F. As examples of foam-generating materials mention may be made of pentane, hexane, dichlorotetrafluoroethane and trichlorotrifluoroethane. When the compositions are to be marketed in single use, packets, or in containers which will be open to the atmosphere, only for short periods of time during the dispensing of the composition, the foam-generating materials may be added directly to the compositions. In uses wherein the compositions may be exposed to the atmosphere for extended periods, the foamgenerating materials may be encapsulated. At time of use, the capsules containing the foam-generating materials are ruptured along with those containing the heat-generating components to provide a self-heating, self-foaming composition.
in preferred embodiments of the present invention, the heat-generating components are encapsulated in thermoplastic materials which have melting points at or below the temperature which will be generated in the compositions. Such embodiments make it possible to provide compositions which are able to generate heat over a prolonged period and thus may be called self-sustaining. Generally, in such selfsustaining compositions the heat-generating components are present in amounts in excess of that which is necessary to bring the composition to the desired or specified temperature. lnusing such self-sustaining compositions, at least that portion of the capsules are ruptured which will bring the composition or a portion of it to the temperature at which the walls of the unruptured capsules will melt. As the composition or portions of it reach such temperatures, the walls of unruptured capsules in the composition or adjacent to the heated portion of it will gradually melt over a prolonged period and continuously release additional quantities of the heat-generating components; thus sustaining the evolution of heat. In compositions which are self-foaming, as well as self-heating, the foaming action may be similarly sustained by also incorporating the foam-generating materials into similar capsules.
in still another preferred embodiment of this invention, the compositions are compounded so that they may be elevated to the desired temperature over a prolonged period. This is accomplished by incorporating the heat-generating components in a plurality of thermoplastic capsules which have sequentially higher melting points e.g. a first portion of the heatgenerating components are incapsulated in an encapsulating material which melts at e.g. F., a second portion is encapsulated in a material which melts at F and so on. Generally, the melting points of the encapsulating materials will lie in a range of temperatures which are above the temperature at which the composition will normally be stored and at or below the desired temperature to which the composition is to be heated. When it is desired that the compositions also be self-sustaining, this is readily accomplished by using an excess of the heat-generating components and incorporating the excess components in the highest melting encapsulating material.
The self-sustaining and/or gradually elevatable compositions disclosed above are especially useful in heating pads, garments, etc.
In certain end uses of the compositions of the present invention, e.g. cosmetics such as shaving creams, the fragments of the ruptured capsules give the compositions a gritty feel and are undesirable. Such undesirable characteristics may be substantially reduced by encapsulating the reagents in thermoplastic materials, such as taught above, which have melting points at or below the temperature which will be generated in the compositions by the reaction of the heat-generating components. in the melted state such encapsulating materials are usually readily dispersible in the compositions and thereby provide a convenient mode of eliminating the undesirable feel of the solid shell fragments. in some compositions, such as shaving creams, there will be surface active agents present which will facilitate such dispersion. In compositions where such surface active agents are not present, it is preferable, if the formulation will tolerate it, to add such surface active agents to aid in the dispersion.
Generally, the thermoplastic encapsulating materials for use in this invention may be selected from the low melting forms of the encapsulating materials previously mentioned above. A particularly useful class of thermoplastic materials for use in such embodiments are the waxes and especially beeswax (solidification point 605 to 62 C). Such waxes, in addition to providing a means of accomplishing the objectives set forth above may also, in some instances, be a useful ingredient in the composition or provide it with desirable characteristics such as body.
Thermoplastic capsules for use in the above embodiments may be readily prepared by known processes. in one such process, the thermoplastic encapsulating material is dispersed in an external phase which is a nonsolvent for both the encapsulating material and the material to be encapsulated. The
tions finch compositions may be illustrated by the following shaving cream formulation which is prepafed as set forth below.
An 8.2 percent aqueous hydrogen peroxide solution (the oxidant) is encapsulated in beeswax by methods such as set forth above, to provide capsules having an average diameter of at least 2000 microns. The capsules are uniformly dispersed in a shaving cream formulation having the following composition by weight:
Distilled water 66. 09
The capsules are added to the formulation in amounts such that there will be about one part by weight of the aqueous peroxide solution present for each three parts of the shaving cream formulation.
In using the above composition for shaving, an amount of it, sufiicient for one shave, is applied to the hand and rubbed to rupture the capsules and release the aqueous peroxide solu tion. Upon release, the peroxide reacts with the l-phenyl-S- ethyl-Z-thiobarbituric acid reductant to elevate the temperature of the composition. The rubbing is continued until the melted capsule fragments are dispersed in the composition and the resulting hot shaving cream is then applied to the beard.
if it is desired to make the above shaving formulation selffoaming as well as self-heating, this can be readily accomplished by adding a foam-generating material, such as described above, to the composition. Usually, the use of about 0.75 to about 2.0 gram molecular weights of the foamgenerating material per 1000 gms of the aqueous composition will provide a useful foam. if it is desired to sustain the heatgenerating action, this is accomplished by using an excess of the heat-generating components and initially rupturing that portion of the capsules which will bring the composition or a portion of it to a temperature which will gradually melt the remaining unruptured capsules.
ln packaging the compositions of the present invention, it is generally not advisable to use squeeze-type tubes because a certain portion of the capsules in the unused portion of the composition will be ruptured during the dispensing operation. If it is desired to package the compositions in bulk, it is best to use wide-necked jars which will enable the user to gingerly remove the portion he wishes to use without rupturing the capsules in the unused portion of the composition.
When using such bulk packaging, the viscosity of the compositions should preferrably be such that the capsules will remain uniformly suspended in the composition until time of use and will not require stirring. Such suspension of the capsules may be achieved by employing in the compositions one or more of the many thickening and suspending reagents which are commercially available.
The compositions of the present invention are particularly useful in single use packets such as shown in FIGS. 1 and 2. Referring to FIG. 1, the packet 1 comprises a completely enclosed chamber 3 which is bounded by resilient sidewalls 4 which are sealed to each other along their peripheries. The chamber opens into a narrow dispensing channel 7.which is 'closed 08' by a tear-off cap 9. Within the chamber, there is provided a shaving cream composition 5 containing a plurality of first 11 and second 13 capsules. The first capsules 1] contain a heat-generating material which is reactive with another heat-generating material which is disposed in the shaving cream composition and the second capsules 13 contain a foam-generating material. In use, the sidewalls 4 of the packet l are pressed together to rupture the capsules l1 and 13. When the capsules 11 and 13 are ruptured and the composi tion becomes hot and begins to foam, the tear-off cap is removed. Under the pressure of the foam-generating material, the hot shaving composition is forced out of the packet l for use.
in FIG. 2, there is shown a packet similar to that shown in claim 1, except that it is encased by a rigid protective sheath [5 which prevents the accidental rupturing of the capsules ll and 13. The sheath 15 is provided with an opening 17 in its top through which the capped dispensing channel 7 protrudes and in its 15 sidewalls there are positioned openings 21 which provide access to the resilient sidewalls 4 so that they may be pressed together during use to rupture the capsules 11 and 13.
It should be appreciated that in single-use packets, such as shown in FIGS 1 and 2, the foam-generating material, when desired, may be disposed directly in the composition. Similarly, the heat-generating materials and the foam-generating materials may be disposed in single large frangible capsules which are positioned contiguous to the composition.
In embodiments of the present invention where the heat generating component and the foam-generating material are inert with respect to each other, it should be understood that they may be encapsulated in the same capsules.
Having thus described the invention, what I claim is:
1. An aqueous self-heating composition comprising a combination of at least first and second heat-generating components which when in contact with one another effect an exothermic reaction; at least one of said components which is nonaqueous being encapsulated into a plurality of frangible capsules which are dispersed in said aqueous composition, the encapsulating material for said capsules being both inert and impermeable with respect to the aqueous composition and the heat-generating components.
2. A self-heating composition as defined in claim 1 wherein the encapsulating material has a melting point which is at or below the temperature which is generated in the composition when said heat-generating components effect the exothermic reaction.
3. A self-heating composition as defined in claim 2 which includes a foam-generating material, said foam-generating material being a liquid at room temperature and having a boiling point which is below the temperature which is generated in the composition when said heat-generating components effect the exothermic reaction.
4. A self-heating composition as defined in claim 1 which includes a foam-generating material, said foam-generating material being a liquid at room temperature and having a boiling point which is below the temperature which is generated in the composition when said heat-generating components effect the exothermic reaction.
5. A self-heating composition as defined in claim 1 in which said composition is a shaving cream.
6. A self-heating composition as defined in claim 4 wherein said composition is a shaving cream.
7. A self-heating composition as defined in claim 4 wherein said foam-generating material is encapsulated into a plurality of frangible capsules which are dispersed in said composition, the encapsulating material for said capsules being both inert and impermeable with respect to said composition and said foam-generating material.
8. A single-use packet containing a self-heating composition, said packet comprising an enclosed chamber in which said composition is disposed, said chamber being bound by at least one resilient wall and having a dispensing opening which I i packet as defined in claim 8 wherein said composition also comprises a foam-generating material, said foam-generating material being a liquid at room temperature and having a boiling point below the temperature which is generated in the composition when said heat-generating components effect the exothermic reaction.
MD. A packet as defined in claim 9 in which said composition is a shaving cream.
iii. A packet as defined in claim 9 wherein said foamgenerating material is encapsulated in at least one frangible capsule which is positioned within the packet contiguous said composition, the encapsulating material for said capsule being both inert and impermeable with respect to said composition and said heat-generating composition.
12. A packet as defined in claim ll in which said composition is a shaving cream.
13. A packet as defined in claim 8 in which said composition is a shaving cream.
M. An aqueous self-heating composition which is capable of evolving heat over a prolonged period, said composition comprising a combination of at least first and second heatgenerating components which in contact with one another effect an exothermic reaction said combination of heat-generating components being present in amounts in excess of that which is required to bring the composition to a desired specified temperature, at least one of said components which is nonaqueous being encapsulated into a plurality of frangible capsules which are dispersed in said composition, the encapsulating material for said capsules being both inert and impermeable with respect to the aqueous composition and the heat-generating components and having a melting point at or below said specified temperature whereby upon rupturing at least that portion of the capsules which will bring at least a portion of the composition above said melting point, the unruptured capsules will gradually melt over a prolonged period and continuously release additional quantities of the heatgenerating component.
16. An aqueous self-heating composition which rises gradually to a specified temperature over a prolonged period said composition comprising a combination of at least first and second heat-generating components which in contact with one another effect an exothermic reaction, at least one of said heat-generating components which is nonaqueous being encapsulated in a plurality of encapsulating materials, said plurality of encapsulating materials being inert and impermeable with respect to said composition and said heat-generating components and having sequentially higher melting points which are above the temperature at which the aqueous composition is normally stored and at or below said specified temperature.
J17. A self-heating composition as defined in claim 16 which evolves heat over a prolonged period when said composition reaches the specified temperature said composition comprising said heat-generating components in amounts in excess of that required to elevate the composition to said specified temperature, the excess of heat-generating components being encapsulated in the encapsulating material which has the highest melting point in said plurality of encapsulating materials.
Claims (16)
- 2. A self-heating composition as defined in claim 1 wherein the encapsulating material has a melting point which is at or below the temperature which is generated in the composition when said heat-generating components effect the exothermic reaction.
- 3. A self-heating composition as defined in claim 2 which includes a foam-generating material, said foam-generating material being a liquid at room temperature and having a boiling point which is below the temperature which is generated in the composition when said heat-generating components effect the exothermic reaction.
- 4. A self-heating composition as defined in claim 1 which includes a foam-generating material, said foam-generating material being a liquid at room temperature and having a boiling point which is below the temperature which is generated in the composition when said heat-generating components effect the exothermic reaction.
- 5. A self-heating composition as defined in claim 1 in which said composition is a shaving cream.
- 6. A self-heating composition as defined in claim 4 wherein said composition is a shaving cream.
- 7. A self-heating composition as defined in claim 4 wherein said foam-generating material is encapsulated into a plurality of frangible capsules which are dispersed in said composition, the encapsulating material for said capsules being both inert and impermeable with respect to said composition and said foam-generating material.
- 8. A single-use packet containing a self-heating composition, said packet Comprising an enclosed chamber in which said composition is disposed, said chamber being bound by at least one resilient wall and having a dispensing opening which is closed off by a removable closure, said composition comprising a combination of at least first and second heat-generating components which when in contact with one another effect an exothermic reaction; at least one of said components being encapsulated in at least one frangible capsule which is positioned in the packet contiguous with the composition, the wall material of said capsule being both inert and impermeable with respect to said composition and said heat-generating components.
- 9. A packet as defined in claim 8 wherein said composition also comprises a foam-generating material, said foam-generating material being a liquid at room temperature and having a boiling point below the temperature which is generated in the composition when said heat-generating components effect the exothermic reaction.
- 10. A packet as defined in claim 9 in which said composition is a shaving cream.
- 11. A packet as defined in claim 9 wherein said foam-generating material is encapsulated in at least one frangible capsule which is positioned within the packet contiguous said composition, the encapsulating material for said capsule being both inert and impermeable with respect to said composition and said heat-generating composition.
- 12. A packet as defined in claim 11 in which said composition is a shaving cream.
- 13. A packet as defined in claim 8 in which said composition is a shaving cream.
- 14. An aqueous self-heating composition which is capable of evolving heat over a prolonged period, said composition comprising a combination of at least first and second heat-generating components which in contact with one another effect an exothermic reaction said combination of heat-generating components being present in amounts in excess of that which is required to bring the composition to a desired specified temperature, at least one of said components which is nonaqueous being encapsulated into a plurality of frangible capsules which are dispersed in said composition, the encapsulating material for said capsules being both inert and impermeable with respect to the aqueous composition and the heat-generating components and having a melting point at or below said specified temperature whereby upon rupturing at least that portion of the capsules which will bring at least a portion of the composition above said melting point, the unruptured capsules will gradually melt over a prolonged period and continuously release additional quantities of the heat-generating component.
- 15. A self-heating composition as defined in claim 14 which includes a foam-generating material which is encapsulated into a plurality of frangible capsules which are dispersed in said composition, the encapsulating material for said capsules being both inert and impermeable with respect to said composition and having a melting point at or below said specified temperature whereby said capsules will be melted over a prolonged period and continuously release additional quantities of said foam-generating material.
- 16. An aqueous self-heating composition which rises gradually to a specified temperature over a prolonged period said composition comprising a combination of at least first and second heat-generating components which in contact with one another effect an exothermic reaction, at least one of said heat-generating components which is nonaqueous being encapsulated in a plurality of encapsulating materials, said plurality of encapsulating materials being inert and impermeable with respect to said composition and said heat-generating components and having sequentially higher melting points which are above the temperature at which the aqueous composition is normally stored and at or below said specified temperature.
- 17. A self-heating composition as defined in claim 16 which evolves heat over a prolonged period when said composition reaches the Specified temperature said composition comprising said heat-generating components in amounts in excess of that required to elevate the composition to said specified temperature, the excess of heat-generating components being encapsulated in the encapsulating material which has the highest melting point in said plurality of encapsulating materials.
Applications Claiming Priority (1)
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US83631469A | 1969-06-25 | 1969-06-25 |
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US836314A Expired - Lifetime US3585982A (en) | 1969-06-25 | 1969-06-25 | Self-heating composition |
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Cited By (69)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4088751A (en) * | 1972-04-07 | 1978-05-09 | Colgate-Palmolive Company | Self-heating cosmetic |
US4142508A (en) * | 1975-06-09 | 1979-03-06 | Kay Laboratories, Inc. | Method for splicing cables and hot pack for use therein |
US4901466A (en) * | 1988-05-03 | 1990-02-20 | Davis Raymond K | Fishing lure treatment |
US5035230A (en) * | 1990-02-23 | 1991-07-30 | Steidl Gary V | Disposable food heater |
US5163504A (en) * | 1988-07-08 | 1992-11-17 | Resnick Joseph A | Container heating or cooling device and building material |
US5263991A (en) * | 1992-10-21 | 1993-11-23 | Biomet, Inc. | Method for heating biocompatible implants in a thermal packaging line |
US5553741A (en) * | 1993-08-06 | 1996-09-10 | River Medical, Inc. | Liquid delivery device |
US5571261A (en) * | 1993-08-06 | 1996-11-05 | River Medical, Inc | Liquid delivery device |
US5578005A (en) * | 1993-08-06 | 1996-11-26 | River Medical, Inc. | Apparatus and methods for multiple fluid infusion |
US5588556A (en) * | 1993-08-06 | 1996-12-31 | River Medical, Inc. | Method for generating gas to deliver liquid from a container |
US5700245A (en) * | 1995-07-13 | 1997-12-23 | Winfield Medical | Apparatus for the generation of gas pressure for controlled fluid delivery |
US5702375A (en) * | 1990-03-05 | 1997-12-30 | Stephen P. Angelillo | Absorbent pad and thermal pack |
US5736110A (en) * | 1995-05-16 | 1998-04-07 | Angelillo; Stephen P. | Activator for initiating crystallization of a supersaturated solution |
WO2001026994A1 (en) * | 1999-10-08 | 2001-04-19 | The Procter & Gamble Company | Temperature change pouch with dispensing chamber |
US6228375B1 (en) * | 1998-12-22 | 2001-05-08 | Robert William Kocher | Micro hand sanitizers (MHS) |
US6248257B1 (en) | 1996-08-02 | 2001-06-19 | Tda Research, Inc. | Portable heat source |
US6289889B1 (en) | 1999-07-12 | 2001-09-18 | Tda Research, Inc. | Self-heating flexible package |
WO2002006421A1 (en) * | 2000-07-13 | 2002-01-24 | The Procter & Gamble Company | Methods and reaction mixtures for controlling exothermic reactions |
WO2002030237A3 (en) * | 2000-10-10 | 2002-07-04 | Procter & Gamble | Article for the delivery of foam products |
US20020092517A1 (en) * | 2000-11-01 | 2002-07-18 | Jelten Jeffrey Alan | Heated soft gift item |
US6484514B1 (en) | 2000-10-10 | 2002-11-26 | The Procter & Gamble Company | Product dispenser having internal temperature changing element |
US20030040753A1 (en) * | 1997-06-19 | 2003-02-27 | Wolfgang Daum | Cranial guide device and methods |
US20030084914A1 (en) * | 2001-11-08 | 2003-05-08 | L'oreal | Cosmetic articles having encapsulated liquid and method of making same |
US20030139318A1 (en) * | 2001-03-16 | 2003-07-24 | Unilever Home & Personal Care Usa | Water soluble sachet with a dishwashing enhancing particle |
WO2003094644A1 (en) * | 2002-05-08 | 2003-11-20 | Mirco Polenta | Heated or cooled item of clothing |
US20040065315A1 (en) * | 2002-10-03 | 2004-04-08 | Fish Jeffrey E. | Pressure activated reaction vessel and package |
US20040166086A1 (en) * | 2003-02-21 | 2004-08-26 | Gurusamy Manivannan | Shave gel products |
US20050214242A1 (en) * | 2004-01-30 | 2005-09-29 | Fatemeh Mohammadi | Compositions containing internally activated antioxidant |
US20050268749A1 (en) * | 2004-06-04 | 2005-12-08 | Alcatel | Tool for stripping off a jacket from tubes or cables |
US20060029566A1 (en) * | 2004-08-09 | 2006-02-09 | The Gillette Company | Self-heating non-aerosol shave product |
US20060029565A1 (en) * | 2004-08-09 | 2006-02-09 | The Gillette Company | Self-heating shave foam product |
US20060034793A1 (en) * | 2004-08-12 | 2006-02-16 | Yerby Patrick T | Viscous products for use on the body |
US20060147406A1 (en) * | 2004-08-12 | 2006-07-06 | Yerby Patrick T | Viscous products for use on the body |
US20070145618A1 (en) * | 2005-12-28 | 2007-06-28 | Kimberly-Clark Worldwide, Inc. | Methods of making microencapsulated delivery vehicles |
US20070145619A1 (en) * | 2005-12-28 | 2007-06-28 | Kimberly-Clark Worldwide, Inc. | Processes for producing microencapsulated delivery vehicles |
US20070148448A1 (en) * | 2005-12-28 | 2007-06-28 | Kimberly-Clark Worldwide, Inc. | Microencapsulated delivery vehicles including cooling agents |
US20070145326A1 (en) * | 2005-12-28 | 2007-06-28 | Kimberly-Clark Worldwide, Inc. | Microencapsulated heat delivery vehicles |
US20070148198A1 (en) * | 2005-12-28 | 2007-06-28 | Kimberly-Clark Worldwide, Inc. | Method of Manufacturing Self-Warming Products |
US20070149435A1 (en) * | 2005-12-28 | 2007-06-28 | Kimberly-Clark Worldwide, Inc. | Cleansing composition including microencapsulated delivery vehicles |
US20070148447A1 (en) * | 2005-12-28 | 2007-06-28 | Kimberly-Clark Worldwide, Inc. | Wipes including microencapsulated delivery vehicles and phase change materials |
US20070145617A1 (en) * | 2005-12-28 | 2007-06-28 | Kimberly-Clark Worldwide, Inc. | Processes for producing microencapsulated heat delivery vehicles |
WO2007078393A1 (en) * | 2005-12-28 | 2007-07-12 | Kimberly-Clark Worldwide, Inc. | Wipes including microencapsulated heat delivery vehicles and phase change materials |
US20070202185A1 (en) * | 2005-12-28 | 2007-08-30 | Kimberly-Clark Worldwide, Inc. | Microencapsulated Delivery Vehicles Having Fugitive Layers |
US20070278242A1 (en) * | 2006-05-30 | 2007-12-06 | Kimberly-Clark Worldwide, Inc. | Wet wipe dispensing system |
US20080087680A1 (en) * | 2006-05-30 | 2008-04-17 | Kimberly-Clark Worldwide, Inc. | Wet wipe dispensing system for dispensing warm wet wipes |
US20080118417A1 (en) * | 2006-10-19 | 2008-05-22 | Blaise Harrison, Llc | Exothermic Personal Lubricant |
US20080132438A1 (en) * | 2006-11-30 | 2008-06-05 | Kimberly-Clark Worldwide, Inc. | Cleansing composition incorporating a biocide, heating agent and thermochromic substance |
US20080145437A1 (en) * | 2006-12-14 | 2008-06-19 | Kimberly-Clark Worldwide, Inc. | Reactive Chemistries For Warming Personal Care Products |
US20080145426A1 (en) * | 2006-12-14 | 2008-06-19 | Kimberly-Clark Worldwide, Inc. | Microencapsulated Delivery Vehicle Having An Aqueous Core |
US20080145644A1 (en) * | 2006-12-14 | 2008-06-19 | Kimberly-Clark Worldwide, Inc. | Supersaturated Solutions Using Crystallization Enthalpy To Impact Temperature Change To Wet Wipes |
US20080210579A1 (en) * | 2007-03-01 | 2008-09-04 | Blaise Harrison, Llc | Exothermic Condom Packaging |
CN101547676A (en) * | 2006-12-14 | 2009-09-30 | 金伯利-克拉克环球有限公司 | Wet wipes exhibiting a warming effect through the crystallization enthalpy of a supersatured solution incorporated therein |
US20100004569A1 (en) * | 2006-08-01 | 2010-01-07 | Kim Sujung | Pack for Eye Warming Massage |
US20100086509A1 (en) * | 2008-09-08 | 2010-04-08 | Alexander Novikov | Self-Heating Shaving Compositions |
US20100089381A1 (en) * | 2006-10-25 | 2010-04-15 | Tempra Technology, Inc. | Portable flameless heat pack |
US7924142B2 (en) | 2008-06-30 | 2011-04-12 | Kimberly-Clark Worldwide, Inc. | Patterned self-warming wipe substrates |
US8721572B1 (en) | 2010-06-10 | 2014-05-13 | Eyedetec Medical, Inc. | Systems, devices, kits and methods for therapy of the eye |
USD774889S1 (en) * | 2015-04-13 | 2016-12-27 | FA Inc. | Package |
US20170113845A9 (en) * | 2010-02-06 | 2017-04-27 | Momentive Performance Materials, Inc. | Spout forming strip remnant |
US9878039B1 (en) | 2016-09-01 | 2018-01-30 | International Business Machines Corporation | Microcapsule having a microcapsule shell material that is rupturable via a retro-dimerization reaction |
USD814941S1 (en) * | 2015-08-31 | 2018-04-10 | Diversey, Inc. | Package having two pouches |
US10278284B2 (en) | 2016-08-25 | 2019-04-30 | International Business Machines Corporation | Laminate materials with embedded heat-generating multi-compartment microcapsules |
US10309692B2 (en) | 2015-11-11 | 2019-06-04 | International Business Machines Corporation | Self-heating thermal interface material |
US10328535B2 (en) | 2016-11-07 | 2019-06-25 | International Business Machines Corporation | Self-heating solder flux material |
USD895417S1 (en) * | 2018-05-09 | 2020-09-08 | Philip Morris Products S.A. | Sheath |
USD896066S1 (en) * | 2018-05-09 | 2020-09-15 | Philip Morris Products S.A. | Sheath |
USD897848S1 (en) * | 2019-01-15 | 2020-10-06 | Asahi Europe Ltd. | Beer bottle |
USD1039966S1 (en) * | 2020-07-28 | 2024-08-27 | Spigen Korea Co., Ltd. | Package |
USD1039967S1 (en) * | 2018-08-17 | 2024-08-27 | Nikon Corporation | Packaging case |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3175558A (en) * | 1962-03-14 | 1965-03-30 | James C Caillonette | Thermal therapeutic pack |
US3240396A (en) * | 1963-06-11 | 1966-03-15 | Robert M Friedenberg | Aerosol dispenser |
US3378333A (en) * | 1966-08-10 | 1968-04-16 | Alan D. Brite | Water activated vaporizer |
US3473542A (en) * | 1967-09-08 | 1969-10-21 | Shell Oil Co | In situ pipeline heat generation |
-
1969
- 1969-06-25 US US836314A patent/US3585982A/en not_active Expired - Lifetime
-
1970
- 1970-06-18 GB GB2961970A patent/GB1308565A/en not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3175558A (en) * | 1962-03-14 | 1965-03-30 | James C Caillonette | Thermal therapeutic pack |
US3240396A (en) * | 1963-06-11 | 1966-03-15 | Robert M Friedenberg | Aerosol dispenser |
US3378333A (en) * | 1966-08-10 | 1968-04-16 | Alan D. Brite | Water activated vaporizer |
US3473542A (en) * | 1967-09-08 | 1969-10-21 | Shell Oil Co | In situ pipeline heat generation |
Cited By (109)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4088751A (en) * | 1972-04-07 | 1978-05-09 | Colgate-Palmolive Company | Self-heating cosmetic |
US4142508A (en) * | 1975-06-09 | 1979-03-06 | Kay Laboratories, Inc. | Method for splicing cables and hot pack for use therein |
US4901466A (en) * | 1988-05-03 | 1990-02-20 | Davis Raymond K | Fishing lure treatment |
US5163504A (en) * | 1988-07-08 | 1992-11-17 | Resnick Joseph A | Container heating or cooling device and building material |
US5035230A (en) * | 1990-02-23 | 1991-07-30 | Steidl Gary V | Disposable food heater |
WO1991013296A1 (en) * | 1990-02-23 | 1991-09-05 | International Thermal Packaging, Inc. | Disposable food heater |
US6265631B1 (en) | 1990-03-05 | 2001-07-24 | Sherwood Services Ag | Absorbent pad and thermal pack |
US5702375A (en) * | 1990-03-05 | 1997-12-30 | Stephen P. Angelillo | Absorbent pad and thermal pack |
US5263991A (en) * | 1992-10-21 | 1993-11-23 | Biomet, Inc. | Method for heating biocompatible implants in a thermal packaging line |
US5376120A (en) * | 1992-10-21 | 1994-12-27 | Biomet, Inc. | Biocompatible implant and method of using same |
US5588556A (en) * | 1993-08-06 | 1996-12-31 | River Medical, Inc. | Method for generating gas to deliver liquid from a container |
US5553741A (en) * | 1993-08-06 | 1996-09-10 | River Medical, Inc. | Liquid delivery device |
US5571261A (en) * | 1993-08-06 | 1996-11-05 | River Medical, Inc | Liquid delivery device |
US5578005A (en) * | 1993-08-06 | 1996-11-26 | River Medical, Inc. | Apparatus and methods for multiple fluid infusion |
US5558255A (en) * | 1993-08-06 | 1996-09-24 | River Medical, Inc. | Liquid delivery device |
US5736110A (en) * | 1995-05-16 | 1998-04-07 | Angelillo; Stephen P. | Activator for initiating crystallization of a supersaturated solution |
US5700245A (en) * | 1995-07-13 | 1997-12-23 | Winfield Medical | Apparatus for the generation of gas pressure for controlled fluid delivery |
US6248257B1 (en) | 1996-08-02 | 2001-06-19 | Tda Research, Inc. | Portable heat source |
US20030040753A1 (en) * | 1997-06-19 | 2003-02-27 | Wolfgang Daum | Cranial guide device and methods |
US6228375B1 (en) * | 1998-12-22 | 2001-05-08 | Robert William Kocher | Micro hand sanitizers (MHS) |
US6289889B1 (en) | 1999-07-12 | 2001-09-18 | Tda Research, Inc. | Self-heating flexible package |
WO2001026994A1 (en) * | 1999-10-08 | 2001-04-19 | The Procter & Gamble Company | Temperature change pouch with dispensing chamber |
WO2001026499A1 (en) * | 1999-10-08 | 2001-04-19 | The Procter & Gamble Company | Semi-enclosed applicator for distributing a substance onto a target surface |
WO2002006421A1 (en) * | 2000-07-13 | 2002-01-24 | The Procter & Gamble Company | Methods and reaction mixtures for controlling exothermic reactions |
US6484514B1 (en) | 2000-10-10 | 2002-11-26 | The Procter & Gamble Company | Product dispenser having internal temperature changing element |
WO2002030237A3 (en) * | 2000-10-10 | 2002-07-04 | Procter & Gamble | Article for the delivery of foam products |
WO2002030251A3 (en) * | 2000-10-10 | 2003-04-10 | Procter & Gamble | Product dispenser having internal temperature changing element |
US6547063B1 (en) | 2000-10-10 | 2003-04-15 | The Procter & Gamble Company | Article for the delivery of foam products |
US20020092517A1 (en) * | 2000-11-01 | 2002-07-18 | Jelten Jeffrey Alan | Heated soft gift item |
US20030139318A1 (en) * | 2001-03-16 | 2003-07-24 | Unilever Home & Personal Care Usa | Water soluble sachet with a dishwashing enhancing particle |
US7674761B2 (en) | 2001-03-16 | 2010-03-09 | Unilever Home & Personal Care, Division Of Conopco, Inc. | Water soluble sachet with a dishwashing enhancing particle |
US20100120650A1 (en) * | 2001-03-16 | 2010-05-13 | Conopco, Inc., D/B/A Unilever | Dishwashing Composition with Particles |
US8367599B2 (en) | 2001-03-16 | 2013-02-05 | Unilever Home & Personal Care Usa, Division Of Conopco, Inc. | Dishwashing composition with particles |
US20030084914A1 (en) * | 2001-11-08 | 2003-05-08 | L'oreal | Cosmetic articles having encapsulated liquid and method of making same |
EP1310186A1 (en) * | 2001-11-08 | 2003-05-14 | L'oreal | Cosmetic articles having encapsulated liquid and method of making same |
US20060230633A1 (en) * | 2002-05-08 | 2006-10-19 | Mirco Polenta | Heated or cooled item of clothing |
WO2003094644A1 (en) * | 2002-05-08 | 2003-11-20 | Mirco Polenta | Heated or cooled item of clothing |
US6827080B2 (en) | 2002-10-03 | 2004-12-07 | Kimberly-Clark Worldwide, Inc. | Pressure activated reaction vessel and package |
US20040065315A1 (en) * | 2002-10-03 | 2004-04-08 | Fish Jeffrey E. | Pressure activated reaction vessel and package |
US7854349B2 (en) | 2003-02-21 | 2010-12-21 | The Gillette Company | Shave gel products |
US20040166085A1 (en) * | 2003-02-21 | 2004-08-26 | Gurusamy Manivannan | Shave gel compositions |
US20040166086A1 (en) * | 2003-02-21 | 2004-08-26 | Gurusamy Manivannan | Shave gel products |
US20050214242A1 (en) * | 2004-01-30 | 2005-09-29 | Fatemeh Mohammadi | Compositions containing internally activated antioxidant |
US8393250B2 (en) * | 2004-06-04 | 2013-03-12 | Alcatel Lucent | Tool for stripping off a jacket from tubes or cables |
US20050268749A1 (en) * | 2004-06-04 | 2005-12-08 | Alcatel | Tool for stripping off a jacket from tubes or cables |
US20060029566A1 (en) * | 2004-08-09 | 2006-02-09 | The Gillette Company | Self-heating non-aerosol shave product |
US8586017B2 (en) | 2004-08-09 | 2013-11-19 | The Gillette Company | Self-heating non-aerosol shave product |
US20060029565A1 (en) * | 2004-08-09 | 2006-02-09 | The Gillette Company | Self-heating shave foam product |
US20060147406A1 (en) * | 2004-08-12 | 2006-07-06 | Yerby Patrick T | Viscous products for use on the body |
US20060034793A1 (en) * | 2004-08-12 | 2006-02-16 | Yerby Patrick T | Viscous products for use on the body |
WO2007075216A1 (en) * | 2005-12-28 | 2007-07-05 | Kimberly-Clark Worldwide, Inc. | Wipes including microencapsulated heat dlivery vehicles and phase change materials |
US20070145618A1 (en) * | 2005-12-28 | 2007-06-28 | Kimberly-Clark Worldwide, Inc. | Methods of making microencapsulated delivery vehicles |
US20070145617A1 (en) * | 2005-12-28 | 2007-06-28 | Kimberly-Clark Worldwide, Inc. | Processes for producing microencapsulated heat delivery vehicles |
WO2007075209A1 (en) * | 2005-12-28 | 2007-07-05 | Kimberly-Clark Worldwide, Inc. | Wax microencapsulated heat delivery vehicles |
US20070148459A1 (en) * | 2005-12-28 | 2007-06-28 | Kimberly-Clark Worldwide, Inc. | Microencapsulated delivery vehicles |
WO2007075207A1 (en) * | 2005-12-28 | 2007-07-05 | Kimberly-Clark Worldwide, Inc. | Microencapsulated delivery vehicles |
WO2007078393A1 (en) * | 2005-12-28 | 2007-07-12 | Kimberly-Clark Worldwide, Inc. | Wipes including microencapsulated heat delivery vehicles and phase change materials |
US20070202184A1 (en) * | 2005-12-28 | 2007-08-30 | Kimberly-Clark Worldwide, Inc. | Liquid Compositions Including Microencapsulated Delivery Vehicles |
US20070202185A1 (en) * | 2005-12-28 | 2007-08-30 | Kimberly-Clark Worldwide, Inc. | Microencapsulated Delivery Vehicles Having Fugitive Layers |
US20070148198A1 (en) * | 2005-12-28 | 2007-06-28 | Kimberly-Clark Worldwide, Inc. | Method of Manufacturing Self-Warming Products |
US20070149435A1 (en) * | 2005-12-28 | 2007-06-28 | Kimberly-Clark Worldwide, Inc. | Cleansing composition including microencapsulated delivery vehicles |
US20070145326A1 (en) * | 2005-12-28 | 2007-06-28 | Kimberly-Clark Worldwide, Inc. | Microencapsulated heat delivery vehicles |
US7914891B2 (en) | 2005-12-28 | 2011-03-29 | Kimberly-Clark Worldwide, Inc. | Wipes including microencapsulated delivery vehicles and phase change materials |
US7442439B2 (en) | 2005-12-28 | 2008-10-28 | Kimberly-Clark Worldwide, Inc. | Microencapsulated heat delivery vehicles |
US20070145619A1 (en) * | 2005-12-28 | 2007-06-28 | Kimberly-Clark Worldwide, Inc. | Processes for producing microencapsulated delivery vehicles |
US20070148447A1 (en) * | 2005-12-28 | 2007-06-28 | Kimberly-Clark Worldwide, Inc. | Wipes including microencapsulated delivery vehicles and phase change materials |
US20070148448A1 (en) * | 2005-12-28 | 2007-06-28 | Kimberly-Clark Worldwide, Inc. | Microencapsulated delivery vehicles including cooling agents |
US7497351B2 (en) | 2006-05-30 | 2009-03-03 | Kimberly-Clark Worldwide, Inc. | Wet wipe dispensing system |
US20090065521A1 (en) * | 2006-05-30 | 2009-03-12 | Kimberly-Clark Worldwide, Inc. | Wet wipes dispensing system |
US7850041B2 (en) | 2006-05-30 | 2010-12-14 | John David Amundson | Wet wipes dispensing system |
US7654412B2 (en) | 2006-05-30 | 2010-02-02 | Kimberly-Clark Worldwide, Inc. | Wet wipe dispensing system for dispensing warm wet wipes |
US20080087680A1 (en) * | 2006-05-30 | 2008-04-17 | Kimberly-Clark Worldwide, Inc. | Wet wipe dispensing system for dispensing warm wet wipes |
US20070278242A1 (en) * | 2006-05-30 | 2007-12-06 | Kimberly-Clark Worldwide, Inc. | Wet wipe dispensing system |
US20100004569A1 (en) * | 2006-08-01 | 2010-01-07 | Kim Sujung | Pack for Eye Warming Massage |
US20080118417A1 (en) * | 2006-10-19 | 2008-05-22 | Blaise Harrison, Llc | Exothermic Personal Lubricant |
US20100089381A1 (en) * | 2006-10-25 | 2010-04-15 | Tempra Technology, Inc. | Portable flameless heat pack |
US8318654B2 (en) * | 2006-11-30 | 2012-11-27 | Kimberly-Clark Worldwide, Inc. | Cleansing composition incorporating a biocide, heating agent and thermochromic substance |
US20080132438A1 (en) * | 2006-11-30 | 2008-06-05 | Kimberly-Clark Worldwide, Inc. | Cleansing composition incorporating a biocide, heating agent and thermochromic substance |
US20080145644A1 (en) * | 2006-12-14 | 2008-06-19 | Kimberly-Clark Worldwide, Inc. | Supersaturated Solutions Using Crystallization Enthalpy To Impact Temperature Change To Wet Wipes |
US7597954B2 (en) | 2006-12-14 | 2009-10-06 | Kimberly-Clark Worldwide, Inc. | Supersaturated solutions using crystallization enthalpy to impact temperature change to wet wipes |
CN101547676A (en) * | 2006-12-14 | 2009-09-30 | 金伯利-克拉克环球有限公司 | Wet wipes exhibiting a warming effect through the crystallization enthalpy of a supersatured solution incorporated therein |
US7517582B2 (en) | 2006-12-14 | 2009-04-14 | Kimberly-Clark Worldwide, Inc. | Supersaturated solutions using crystallization enthalpy to impart temperature change to wet wipes |
US8192841B2 (en) | 2006-12-14 | 2012-06-05 | Kimberly-Clark Worldwide, Inc. | Microencapsulated delivery vehicle having an aqueous core |
WO2008072122A1 (en) * | 2006-12-14 | 2008-06-19 | Kimberly-Clark Worldwide, Inc. | Warming personal care products |
US20080145426A1 (en) * | 2006-12-14 | 2008-06-19 | Kimberly-Clark Worldwide, Inc. | Microencapsulated Delivery Vehicle Having An Aqueous Core |
US20080145437A1 (en) * | 2006-12-14 | 2008-06-19 | Kimberly-Clark Worldwide, Inc. | Reactive Chemistries For Warming Personal Care Products |
US7882838B2 (en) | 2007-03-01 | 2011-02-08 | Blaise Harrison, Llc | Exothermic condom packaging |
US20080210579A1 (en) * | 2007-03-01 | 2008-09-04 | Blaise Harrison, Llc | Exothermic Condom Packaging |
US7924142B2 (en) | 2008-06-30 | 2011-04-12 | Kimberly-Clark Worldwide, Inc. | Patterned self-warming wipe substrates |
US20100086509A1 (en) * | 2008-09-08 | 2010-04-08 | Alexander Novikov | Self-Heating Shaving Compositions |
US8221734B2 (en) | 2008-09-08 | 2012-07-17 | The Procter & Gamble Company | Self-heating shaving compositions |
US20170113845A9 (en) * | 2010-02-06 | 2017-04-27 | Momentive Performance Materials, Inc. | Spout forming strip remnant |
US8721572B1 (en) | 2010-06-10 | 2014-05-13 | Eyedetec Medical, Inc. | Systems, devices, kits and methods for therapy of the eye |
USD774889S1 (en) * | 2015-04-13 | 2016-12-27 | FA Inc. | Package |
USD814941S1 (en) * | 2015-08-31 | 2018-04-10 | Diversey, Inc. | Package having two pouches |
US10309692B2 (en) | 2015-11-11 | 2019-06-04 | International Business Machines Corporation | Self-heating thermal interface material |
US11085672B2 (en) | 2015-11-11 | 2021-08-10 | International Business Machines Corporation | Self-heating thermal interface material |
US11140779B2 (en) | 2016-08-25 | 2021-10-05 | International Business Machines Corporation | Laminate materials with embedded heat-generating multi-compartment microcapsules |
US10278284B2 (en) | 2016-08-25 | 2019-04-30 | International Business Machines Corporation | Laminate materials with embedded heat-generating multi-compartment microcapsules |
US11007268B2 (en) | 2016-09-01 | 2021-05-18 | International Business Machines Corporation | Microcapsule having a microcapsule shell material that is rupturable via a retro-dimerization reaction |
US10548978B2 (en) | 2016-09-01 | 2020-02-04 | International Business Machines Corporation | Microcapsule having a microcapsule shell material that is rupturable via a retro-dimerization reaction |
US9878039B1 (en) | 2016-09-01 | 2018-01-30 | International Business Machines Corporation | Microcapsule having a microcapsule shell material that is rupturable via a retro-dimerization reaction |
US10610980B2 (en) | 2016-11-07 | 2020-04-07 | International Business Machines Corporation | Self-heating solder flux material |
US10328535B2 (en) | 2016-11-07 | 2019-06-25 | International Business Machines Corporation | Self-heating solder flux material |
USD895417S1 (en) * | 2018-05-09 | 2020-09-08 | Philip Morris Products S.A. | Sheath |
USD896066S1 (en) * | 2018-05-09 | 2020-09-15 | Philip Morris Products S.A. | Sheath |
USD1039967S1 (en) * | 2018-08-17 | 2024-08-27 | Nikon Corporation | Packaging case |
USD897848S1 (en) * | 2019-01-15 | 2020-10-06 | Asahi Europe Ltd. | Beer bottle |
USD1039966S1 (en) * | 2020-07-28 | 2024-08-27 | Spigen Korea Co., Ltd. | Package |
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