DE1945144A1 - Aerosol deodorizing product - Google Patents

Description

PRIORITY : USA dated September 6, 1968 Serial No. 758 125

The present invention relates to an aerosol deodorant product which is composed of a Aluminum dichlorohydroxide-propylene glycol complex and a propellant system is preferably based on hydrocarbons and is characterized by a packing therefor. By using of organic aluminum chlorohydroxide complexes as active In one component, an improvement in deodorizing aerosol products is achieved.

Aerosol deodorant products in a pack under Pressure containing a deodorant aerosol composition are already known. However, in the process of making such Products encountered technical difficulties. A basic problem that needed to be resolved was the provision of a suitable one active ingredient. In the search for a suitable active ingredient, numerous attempts have been made with aluminum-containing ingredients Connections have been made. A synopsis of the history of these attempts is in a booklet entitled "Rehydrol ASC ", 1966, Reheis Chemical Company, Division of Armor Pharmaceutical Company, Chicago, Illinois. As expressed in this booklet, the development resulted an aluminum hydroxide-propylene glycol complex, aka "Rehydrol ASC", your first really active one Component for deBG & oriereti & e aerosol compositions.

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Although the aluminum chlorohydroxide-propylene glycol complex proved to be a suitable active ingredient for deodorizing aerosol compositions, moreover, remained for the composition of a deodorizing aerosol product with satisfactory properties still has some important ones Problems unresolved.

Typical problems that occur in the formulation of deodorant aerosol products based on the aluminum chlorohydroxide-propylene glycol Koiaplex are ι extreme stickiness of the complex when drying out of the solution, which makes the product unsuitable from an aesthetic point of view} Gel formation of compositions »the Complex in storage, which can lead to clogging of the valve and similar problems; Decrease in the deodorant effect or complete Ir -ictivation of the complex due to the action of certain additional ingredients in the composition.

Recent attempts to solve these problems have usually been in two directions, neither of which has proven satisfactory. One method is based on formulating products which contain a relatively small amount, for example 2 to 3%, of the aluminum chloride hydroxide-propylene glycol complex. The main shortcoming of this method is that the product obtained has very little deodorizing effectiveness. The second method consists in formulating a product in which the active component is suspended in relatively large quantities, for example 80 to 90 μl, preferably of a fluorocarbon propellant, as a powder. This method has several disadvantages, including the need to shake the package before each use. Valve clogging problems arise and a relatively expensive fluorocarbon propellant system is obsolete.

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These problems clearly indicate that the formulation of a deodorizing aerosol product with satisfactory Properties is technically not easy to solve, even if a. suitable active ingredient is available. In addition, the task becomes even more difficult when it is gone technical problems also economic and commercial ones Considerations play a role.

The present invention relates to the production of a new deodorizing aerosol product.

The present invention also relates to the improvement of the properties of deodorizing aerosol compositions containing an organic aluminum chlorohydroxide ICoinplex contain.

Another object of the invention are deodorant aerosol products, which have an aluminum chlorohydroxide-propylene glycol ^ complex and which do not need to be shaken before use.

The invention also relates to a deodorant aerosol composition, which is suitable for use in relatively inexpensive aerosol dispensers.

Finally, there is the formulation of a deodorant aerosol composition in a relatively inexpensive package, uia a product with a Storable!: for over a year to guarantee the subject of the present invention.

In the following description, in the examples in the Claims relate to all parts and percentages to parts by weight and parts by weight, unless otherwise expressly referred to can be specified.

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An important aspect in solving the problem posed is the use of a relatively small amount, i. less than about $ 40, a propellant system that is the main thing from a hydrocarbon propellant, for example Isobutane.

Another consideration in practicing the invention is the fundamental absence of hexachlorophene, which is usually used in such compositions.

Another point of view when solving the set task is the combination with other ingredients in the formulation the composition of the present invention. The terms "further ingredients" and "combinations of." other ingredients "all substances with the exception of the organic aluminum chlorohydroxide complex and the propellant system included in the aerosol deodorant compositions of the present invention.

In the fourth sense, there is the deodorant according to the invention Aerosol product consisting of a pack containing an aerosol deodorant composition that is low but effective Amount of an organic aluminum chlorohydroxide complex, one relatively small length of a propellant system preferably Hydrocarbon base, a large amount of anhydrous alcohol and a small but effective amount of a selected combination of other ingredients, in particular a humectant, an anti-gel agent and a smoothing agent.

Deodorizing active ingredient

The active ingredient in the deodorant of the invention Aerosol compositions are used is known and therefore not the subject of the invention · As an active ingredient an organic aluminum chlorohydroxide complex is used. An aluminum chlorohydroxide-propylene glycol complex is preferred used under the trade name "Rehydrol ASC" on sale is. "Rehydrol ASC" is a knows it, leaving it ripe.

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highly hygroscopic, amorphous powder, which is easily soluble in water as well as in anhydrous alcohol up to a concentration of 50 fo at room temperature. Typical specifications for! 'Rehydrol ASG "are j minimum content of Al ₂ O ₃ 36 5S5 minimum content of chloride 12 , 5 i <> \ atomic ratio of Al: Cl in the range from 1.90: 1.00 to 2.00 i 1.00; maximum water content 7 & i minimum pH value (30% by weight solution in anhydrous SD 4-0 alcohol) 2.5.

The concentration at which the aluminum chlorohydroxide-propylene glycol complex is used in the aerosol deodorant composition should generally be in the range of about 6 to about 15% of the composition. Below about $ 6 the effectiveness of the composition as a deodorant is too poor. Problems with formulation occur above about $ 15. It has been shown that very satisfactory results are obtained at a concentration of around $ 9.

Propellant system

As already mentioned, the propellant used is a special one Feature of the present invention. The propellant system makes only a relatively small amount of the deodorizing aerosol composition the end. In addition, the propellant used consists mainly of hydrocarbon propellants and a smaller amount of fluorocarbon propellant

The propellant system used generally constitutes at least about 24 % and no more than about 40 % of the aerosol deodorant composition. Smaller amounts of propellant cause difficulties when spraying, especially when a package is partially emptied. Larger amounts of propellant make the composition flammable and can cause gelation problems. Taking these circumstances into account, a particularly preferred deodorizing aerosol composition contains about 30% by weight propellant system, based on the composition. ,

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The main component of the one used in the present invention. Propellant System is a hydrocarbon propellant. Propane, n-butane, and isobutane are suitable hydrocarbon propellants. Isobutane is usually preferred for use in accordance with the invention. The remaining part of the propellant system is a fluorocarbon propellant. The preferred fluorocarbon propellant used is dichlorodifluoromethane, propellant 12. The method used in the leavening system ratio of hydrocarbon propellant to fluorocarbon propellant is generally from about 2 ι 1. Preferably erfindungsgernäss is used a deodorant aerosol composition containing about 20 i »isobutane and about 10 $ propellant 12th

Other ingredients

The principal additive in the Deodorant aerosol compositions of the invention is an anhydrous alcohol, ie anhydrous SD-40 alcohol in an amount of at least about ¹ to about 45 dew 70th ¹ ? * Of the composition »The alcohol is primarily used as a solvent for the aluminum chlorohydroxide-propylene glycol complex.

In addition to the alcohol (about 45 to about 70 #), the aluminum chlorohydroxide-propylene glycol complex (about 6 to about 15 $ 6), and the propellant system (at least about 24 $ to less than about 40 $), the desorbent aerosol composition can contain small amounts contain other additives. In general, v / ith the total amount does not exceed about 5 ° F of this ¥ / Eiteren additives. · Preferred compositions usually contain from about 2.5 to about 4.5 ^ of the additives described below.

As mentioned above, the stickiness of the aluminum chlorohydroxide-propylene glycol complex poses a major problem in the formulation of satisfactory products. To the solution Such problems are moisture retention in similar cases.

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Many of these agents have been found to be ineffective or only moderately effective in the compositions of the present invention. In addition, the deodorizing effect is impaired and adversely affected if significant amounts of certain humectants and smoothing agents are used. In addition, it has been shown that certain humectants and smoothing agents become ineffective after a certain time, although they initially appear to be effective. With this in mind, hexadecyl alcohol, isopropyl myristate, isopropyl palmitate, di-isopropyl adipate and cetyl stearyl adipate have been found to be suitable humectants. The preferred humectant used is hexadecyl alcohol at a concentration of about 2 % . As with the humectants, certain substances have proven to be more suitable than others for the smoothing agents in the compositions according to the invention. A preferred smoothing agent is "Silicon L-522", which is used at a concentration of about 1 $. "Silicon L-522", marketed by Union Carbide Co. in the trade is a lipophilic organic Silioon copolymer which is present at room temperature as a low viscosity liquid (95 centistokes at 22 ⁰ C). . .

Some anti-gelling agents are commonly used in the compositions of the present invention. In order to meet the requirements, such a material must not only prevent gel formation at the beginning, but for a certain time and at least as long as it corresponds to the shelf life that is required for the deodorizing aerosol product. For the present invention, a shelf life of over 1 year and preferably 2 years is required. "Crodafos K-IO Acid" in a concentration of about 1 <f _{a has} proven to be a particularly suitable anti-gel agent;

"Crodafos R-IO Acid" is a mixture of about 60 <fi Llono- and about 40 # di-oleylcrmea (polyoxyäthj ¹ -) aethylorthophosphat,

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that has an acid number of about 112 and a neutral equivalent of 1.96. It is an amber colored viscous liquid. In addition to its main function as an anti-gel agent it also reduces skin irritation caused by the acidity of the deodorant compositions, and accommodates cosmetic concerns.

Another additive is an anti-corrosive agent. It is known that aluminum chlorohydroxide-propylene glycol complexes, as used according to the invention, have a highly corrosive effect. While ^one Korrosionsproblerae can be theoretically solved in whole or in part by a careful selection of the package, particularly the container, there is a more practical and economical solution to the corrosion problem is to use a preventer Fuei * corrosion of the electrolytic type. As has been found, both organophosphites and acetylene-based corrosion inhibitors are generally effective. An organophosphite which is sold under the name "Virco-Pet 20" and is used in an amount of about $ 0.1 / a has proven to be a particularly preferred anti-corrosion agent. .

Small amounts of fragrances or perfumes, as are customary in the formulation of deodorants, can be added to the compositions according to the invention. Although the aluminum chlorhydroxide-Propylenglpol complex appears zuhaben a bacteriostatic activity, even very small licngen bacteriostatic agents may be added v / ground. According to a preferred embodiment of the invention, however, the composition does not contain any hexachlorophene. It has been shown that with -hexachlorophene intolerance problems can arise, such as the formation of an unpleasant pinkish-brown color when traces of iron are dissolved in the composition.

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The package

The invention includes deodorizing aerosol products a pack, "is enough for the deodorant aero-oil composition contains. The packing can be metal, glass or Resin container · If it's metal, it should preferably have one lining or two linings · For the present invention, relatively inexpensive » Metal containers with a liner are used. »Some known products require compiled and expensive containers to be used to assemble the present invention For example, a side-folded! metal container with a lining is quite suitable «

The container is equipped with a valve in a known manner. When choosing a suitable valve, it is important that a package is obtained that allows small quantities to be withdrawn. The liritladimgsgeschwindkei-t; refers to the speed with which the aerosol composition is discharged through the valve. Quantities permitted are preferable for the present product in order to prevent undesired run-down of the aggregate bu during use, for example in the armpit Tests can be measured. According to the invention it ale sufficiently viewed when the package is suitable for the deodorant aerosol composition contained therein in an amount of efcv / a 0.3g js second to about ^0.5:; g per second (at 21 ° 0 and with a single spray duration not exceeding 20 seconds) to be taken? This rate of charge is to be expressed as a low rate of discharge. _C

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The following example is intended to further explain the present Invention serve:

example

It became a deodorant composition according to the following Recipe made

Part of Gew.jS

Aluinii) iumchl orhy dr oxi d-

Propylene glycol complex 9 »00

Propellant system

. 'Isobutane 20.00

Propellant 12 10.00

Anhydrous S.D. 40 alcohol 55.65

Hexadecyl alcohol humectant 2.00

Silicone G Smoothing Agent 1.00

Anti-gel agent ■ .1.00

Anti-Corrosion Agent '0.10

Perfume . 0.25

This composition was placed in conventional three-part containers Packed from electro-tinned sheet metal with double seam and side fold. The Clayton Corporation valve used, Model CL 1, had a gas outlet of 0.35 mm, a front opening of 0.46 mm and a rear opening of 0.51 mm.

The deodorant aerosol composition prepared according to the example was used for spraying the armpit. It was judged to be extremely effective in every respect when used as a deodorant or anti-perspiration agent. During storage (at 21 ^° C., 38 ^° C. and 54 ^° C.) the product proved to be stable for over 2 years. The product was not flammable.

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The deodorizing aerosol products according to the invention have various advantages over the known products. For example, the products show a very high Degree of deodorizing effectiveness, need it before use do not shake, they have a shelf life of over 1 year and there are no problems with the Clogging of the valve. In addition, they dry in the products used compositions relatively quickly without becoming sticky when placed on the skin. Furthermore a relatively inexpensive propellant system is used for the product, and it can be relatively inexpensive Metal containers with a seam can be used.

Y / I have shown the above is an improved one Deodorizing aerosol product is the subject of the invention. Known processes can be used for the manufacture of this product and methods of filling into packs under pressure.

The present invention is here by showing the details preferred embodiments have been disclosed, which are only intended to illustrate but not limit. Of the The idea of the invention naturally includes various modifications of the procedure.

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Claims (1)

Claims 1. Deodorizing aerosol, labeled by a convection and a deodorizing, antiperspirant aerosol composition with a relatively small amount of one, mainly made of hydrocarbons existing 'propellant systems. 2. Aerosol according to claim 1, characterized in that that the amount of propellant system is less than about 40% based on the weight of the deodorant or antiperspirant composition. 5 »Aerosol according to claim 1, characterized in that that the main part of the propellant system consists of isobutane. 4. Aerosol according to claim 1, characterized in that the propellant system contains about 20 % isobutane and about 10 % dichlorodifluoroethane, based on the weight of the deodorant or antiperspirant composition. " 5. Aerosol according to one or more of the preceding claims, characterized in that the convolution contains an aerosol composition which contains about 45 to about 70 % alcohol, about 6 % to about 15 % of an organic aluminum chlorohydroxide complex and about 2A % to about 40% % of a propellant system consisting primarily of hydrocarbons. 009811/1680 19A5H4 - 13 - ' 6. Aerosol according to claim 5 »characterized in that that the complex is an aluminum chlorohydroxide propylene glycol complex is. 7 · Aerosol according to claim 5 »characterized in that that the propellant system is hydrocarbon propellant and contains fluorocarbon propellants in a ratio of about 2: 1. 8. Aerosol according to claim 5, characterized in that that the pack is set up for slow release of the contents. 9. Aerosol according to claim ^ 5, characterized in that that the pack auo a container with a single Lining is made. 10. Aerosol according to claim 5 »characterized in that that the pack consists of an unlined container. 11. Aerosol according to claim 5, characterized in that the composition smaller amounts of additional Contains ingredients. 12. Aerosol according to claim 5 »characterized in that that the composition small amounts -H - <: cAaec $ ä> contains alcohol, 13o aerosol according to claim 5? thereby marked. ch ~ net that the composition small amounts of a Contains anti-gel agent. 14 · '. Aerosol according to claim 5 »characterized in that that the composition contains small amounts of a corrosion inhibitor. 00981 1/1680 . .1945UA 15. Aerosol according to claim 5, characterized in that the composition contains about 2 % woodcadecyl alcohol, about 1 % anti-gelling agent and about 1% Silicou smoothing agent. 15. Aerosol according to one or more of the preceding claims, characterized in that the composition contains about 9% aluminum chloride-propylene glycol complex, about 10% propellant 12, about 20 % isobutane and the main amount of anhydrous ethanol. 17. Aerosol according to claim 16, characterized ge. indicates that the composition contains approximately 57 % ethanol. 13. Aerosol according to claim 6, characterized in that the composition contains about 2 % hexadecyl alcohol, about 1 % anti-gel agent and about 1 % silicone smoothing agent. ' 19. AeroGol according to claim 18, characterized in that the composition further comprises small amounts. Fragrances and. Contains corrosion inhibitor. 20. J aerosol according to one or more of the preceding claims with a shelf life of more than one year, characterized in that the pack consists of a laterally folded metal container with a lining, which is used to dispense the deodorizing aerosol composition contained therein in an amount of about 0.3 g per second to about 0.55 g P * 'o second, and the composition consists essentially of about 6 to about 15% aluminum chlorohydroxide-propylene glycol complex, about 45 to about 70 % anhydrous SD 40-AlKo-hol and about 24 to about 40 % of a propellant system consisting mainly of hydrocarbons » 00981 1/1680 19451U 21. Aerosol according to Anapruch 20, daduxOh £ ί ke η α ζ sic hnee that the combination as et; zufj free from hexachlorophene i. afc. 22 * Aerosol according to claim 2Θ, characterized g ο ke r. It indicates that the addition consists essentially of about 9 % aluminum chlorohydroxide-pi-opyleneclycol complex, about 57 % anhydrous SD 40 alcohol, about 20% isobutane, about 10 % propellant 12, about 2 % hexadecyl alcohol, about 1 % anti- Gel agent and about 1 % corrosion inhibitors. 0098 11/1680