DE2145032A1 - Method and cosmetic agent for cleaning skin tissue - Google Patents

Description

DIPL.-ING. K. SIEBERT ^G - GRättinger Α. » _β3 Τ

PATENTANWALT DipL-Wirtsch.-lng. Telephone (ΰ ei 31) 27 30 and 4115

PATENTANWALT Postscheckkonto Munich 6ö917

the

Lawyer file: 5205/2

2U5032

General Chemicals and Cosmetics Limited, Sassoon House, Shirley Street, Nassau, Bahamas

Process and cosmetic agent for cleaning skin tissue

The invention relates to a method and a cosmetic one Agent for cleansing and recuperating the skin, which, among other things, creates a soothing warmth when used.

It is known, paste-like skin cleansers with clay-like ixdsorböionsmittel for removing solid and liquid Apply contaminants to the skin. These Heiniger for the most part, if at all, do not remove

unwanted substances that have accumulated deep in the skin pores to have. In addition, there are often before or after

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such a cleaning "treatment humidification or Wetting agent applied "to soften dry skin make and replenish lost moisture. Sin is a common component of such wetting agents an aqueous solution of glycerin that is used to keep the skin hydrated.

Heretofore, a number of preparations have been required for the recovery of the skin tissue by local generation of heat. Such cosmetic compositions usually contain ingredients that facilitate the delivery of blood in the vicinity of the application site in general by enlarging the blood capillaries, which is often irritating to the skin.

Lie invention creates a method and a substance for the simultaneous achievement of a deep cleaning and Generating soothing warmth for skin tissue without the side effects and deficiencies of the prior art occur thereby.

Surprisingly, it has been found that skin tissue can be cleaned and soothingly warmed when one touches the tissue applies a non-irritating, substantially anhydrous polyol which is capable of exothermic skin tissue to dehydrate. It is achieved by the flux of moisture stimulated by the tissue pores and removal is relieved of impurities from the pores. The anhydrous polyol has an extremely high affinity for liquids. As the surface moisture is removed by the polyol, the moisture level deep in the skin's pores increases moisture out through the pores under capillary action and it washes away the impurities that are present in the pores

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2H5032

are out. When moisture occurs ■ with the polyol releases energy in the form of heat on the skin. With a repeated application of polyol the pores of the skin are further flushed out by the fluid that rises through the skin pores and which Replaces liquid that combines with the polyol.

The polyol is advantageously combined with binders, with which a cosmetic skin water, a. Cream or paste with satisfactory cleaning and recovery properties for topical application to the chew. Preferably the weight, proportion of the polyol about 4-0 to 90%, in particular 50 up to 80%. Within these proportions, the cosmetic can Gowns can be ground into a cream that is easy ■ for an effective cleaning and relaxation effect the skin can be applied. 'In a modification, a small proportion (0.5 to 5%) of colloidal silico a thixotropic! see cream or a such gel can be obtained.

The polyol according to the invention must, as stated, in the_ be essentially anhydric so that noticeable amounts of heat are released when applied to damp skin. the The appearance of the generation of heat by the solution, which generates local heating for the skin, is prevented, when the polyol is brought into contact with even small amounts of water before it is applied to the skin will. For best results, the polyol should not contain more than about 3 percent water, and preferably not more than 0.5 percent by weight Contain water. Suitable polyols include ethylene glycol, propylene glycol, glycerol, diethylene glycol, dipropylene glycol, Hexylene glycol, tetraethylene glycol and triethylene glycol, as well as polymers of ethylene oxides with

*} (Glycerine substitute from the purest ethylene glycol)

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of the general formula: HOCH ₂ (CH ₂ OCH ₂ ) _n CH ₂ OH, where η is the average number of oxyethylene groups. Preferred polyethylene glycols are those with. an average molecular weight in the range from 200 to 300, also from 1000 to 6000.

These polyols do not release so much heat that they raise the skin temperature above about 38 to 41 C, although, when applied, they are capable of generating a soothing warmth on the skin. It's an important one Feature of the invention that the amount of heat released by the polyols during application is insufficient is great to induce a local burning sensation or to redden the skin. Mixtures can be used, in particular Mixtures of propylene glycol and glycerol.

Other ingredients can be combined with the aforementioned polyols. Such ingredients contain perfumes, Bactericides, pigments and stabilizers.

Effective binders include powdery absorbent clay-like ones Materials such as kaolin, bentonite, diatomaceous earth, full earth, Attapulgite and the like. Other absorbent binders can be used, such as finely divided or vaporized. Titanium dioxide and finely divided or vaporized silicon dioxide.

In another embodiment, a solid detergent paste by combining about 80 to 40 Gewichtspro is ζ ant polyol and about 10 to 60% obtained powdered binder. In general, it has been found that the cosmetic paste produces less heat and dehydration effects than a cosmetic lotion or a cream form according to the invention. I ¹ Ur best results, the binder should have a great one

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Proportion of a stearate, such as sodium stearate or zinc stearate, and contain a small proportion of clay-like binders and / or titanium or silicone dioxides.

In another and even more preferred embodiment of the invention, a cosmetic cream is used. The cream contains a polyol according to the invention and an absorbent finely divided binder, the proportion by weight of the polyol being about 80 to 40% and the proportion by weight. of the binder is about 20 to 60 % . Typical cream has been formed by combining one of the following binders with any of the following polyols in the aforementioned proportions:

Binder ^ polyol ^:

Bentonite so-called glycerol

Oatomaceous earth propylene glycol

Fuller's earth 1,3-butylene glycol

Attapulgite diethylene glycol

evaporated or finely pulverized. Dipropylene glycol urined titanium dioxide. Triethylene glycol

evaporated or finely divided dilicon dioxide
kaolin

A cream with favorable stability is made by combining about 55 to 65 percent by weight of polyol and about 45 to 35 percent by weight binder obtained.

If desired, fatty acidic soaps, such as citearate, in an amount usually not more than about 50 percent by weight of the clay binder or

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2U5032

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Titanium or silicon dioxide are used. Typical Soaps include sodium stearates and zinc stearates.

In order to create a cosmetic cream within the meaning of the invention, a divided mixture of the solid Components formed using a powder mixer or the like. A polyol according to the invention is then mixed with the powder mixture until a thick paste is obtained. The resulting Paste can then be ground in a three-roller mill or the like to form a cream. One special Preferred cosmetic cream is prepared by adding a powder mixture of the following solids contained in Parts by weight are given, is formed.

Solids · parts by weight

Kaolin 15 parts

so-called amorphous (vaporized
or finely divided titanium dioxide) - 15 parts so-called amorphous (evaporated.
or finely divided silicon dioxide) 7 parts of methyl p-hydroxybenzoate 0.17 parts

The commercial form of the vaporized titanium dioxide used is detected as CAB-OTi. The commercial Form of the evaporated silicon dioxide used is detected as Cab-o-Sil.

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-7- 2H5032

The powder mixture becomes anhydrous at 66.13 weight percent (99.5%) glycerin and 0.7 parts by weight perfume brought together until a thick paste is obtained ■ will. The paste is then used in a three roller mill Form a cream wed.

The amount of the cosmetic cleaning agent, which is applied to the skin for a cleaning and heating effect is not critical, and generally contains a cosmetic cream according to the invention for a single application desirably from about 5 to 10 g polyol and ή binder.

example

I) also a combination of different amounts of anhydrous Glycerol and propylene glycol, premixed with 2% of colloidal silica from kaolin, and a mixture of Kaolin, fumed titanium dioxide and fumed A skin cream was prepared with silicon dioxide binder.

The following 5 compositions were applied to the skin of test subjects with satisfactory results

applied: · I

Components Parts by weight Parts by weight 64 polyol ■ · 34 binder 1. suction Glycerol 8th Propylene glycol 56 kaolin 14th titanium dioxide . 14th Silicon dioxide 6th

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- 8th - Parts by weight • 6th 2145032 Components 38 Parts by weight 2. 29 25, so-called glycerol 29 25 ■ ■ Propylene glycol ' 1? 4th kaolin 17th 58 polyol titanium dioxide 6th 40 binders Silicon dioxide 3 · 7th so-called glycerol 48 55 polyol Propylene glycol 19th 44 binder kaolin 6th Silicon dioxide 19th Titanium dioxide 4th so-called glycerol 44 polyol Propylene glycol 54 binders' kaolin Titanium dioxide Silicon dioxide

- patent claims -

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Claims (1)

2U5032 Claims 1. Method of cleaning, by application of skin tissue of a polyol, characterized by the use of one which exothermically dehydrates the fabric, essentially aridric polyol. ^. Process according to Claim T, characterized in that the polyol is applied in admixture with a binding agent as a gel, lotion, cream or cosmetic paste. 5. locally applicable gown for cleaning skin tissues, containing a skin non-irritating polyol, thereby characterized in that the polyol is substantially anhydric and capable of exothermic dehydration of the skin. . Means according to claim 3, characterized in that it 40 to 90 percent by weight polyol and 60 to 10 percent by weight contains a binder. 5. Means according to claim 3 or 4, characterized in that that as polyol propylene glycol, glycerine, 1,3-butylene glycol I or a mixture of several of these substances is used. Sept. 8, 1971/545 209815/1645