US3211618A

US3211618A - Base for cosmetics

Info

Publication number: US3211618A
Application number: US119270A
Authority: US
Inventors: Kambersky Helene
Original assignee: Individual
Current assignee: Individual
Priority date: 1960-07-08
Filing date: 1961-06-26
Publication date: 1965-10-12
Anticipated expiration: 1982-10-12
Also published as: NL266499A; BE605774A; DE1134797B; AT217639B; GB926862A; CH404087A

Description

United States Patent Ofiice 3,211,618 Patented Oct. 12, 1965 3,211,618 BASE F OR COSMETICS Helene Kambersky, Hegelgasse 6, Vienna, Austria No Drawing. Filed June 26, 1961, Ser. No. 119,270 Claims priority, application Austria, July 8, 1960, A 5,282/60 Claims. (Cl. 167-85) This invention relates to a base for a cosmetic, particularly a cosmetic for eyelashes and eyebrows.

It is known from Austrian patent specification No. 142,033 to use aqueous wax emulsions containing a volatile oil, such as turpentine, for such cosmetics. In Austrian Patent No. 159,218 it is proposed to add a volatile constituent consisting of an ester of a volatile acid, e.g., formic acid ester.

Whereas these cosmetics have good adherence because the volatile substances evaporate soon after application to leave a fine water-insoluble film, the turpentine content of about 50%, which was required, involved the disadvantage that the turpentine in such high concentration had a strong odor and was not tolerable by sensitive persons owing to its known irritating effect on the skin. In Austrian patent specification No. 188,854 it was proposed to add a drying oil, such as linseed oil, and a fatty oil, such as castor oil, to an aqueous emulsion of wax and turpentine. This enables a reduction of the content of turpentine to less than one half of the amount previously required without reducing the suppleness and adherence of the cosmetic. Nevertheless, the odor and sometimes also the irritating effect of turpentine was still a disadvantage when the same was used even in smaller amounts.

It has now been found that an excellent base for cosmetics, particularly for mascara and eyebrow paint, can be obtained on the basis of aqueous wax emulsions if the previously used turpentine is replaced by a mixture of linear parafiins of highest purity and free of aromatics, particularly of isoparaifins having a boiling range between about 160 C. and about 200 C. A mixture which has proved particularly suitable comprises isoparafiins of highest purity, having a boiling range of about 180 C. and about 190 C, which can be obtained by catalytic processes from cracked gases and other low-boiling petroleum hydrocarbons and is available, e.g., under the trade name Shellsol-T.

These products consist of a colorless, highly fluid, oily liquid which is odorless and chemically inert. They are distinguished from turpentine by having a beneficial ef fect on the skin. There is no irritation experienced whatever. When a cosmetic prepared with these products has been applied, e.g., to the eyelashes, moreover the cosmetics will dry within a few minutes to form a nonsmearing, firmly adhering, moisture-resisting film.

It has been found that when the components of the cosmetic are emulsified in the usual manner, the paraffins provided according to the invention together with an emulsifier, the desired pigments and perfumes and, 1f desired, a substance acting as an odor carrier, such as terpmeol, give a homogeneous emulsion of excellent quality. Suitable emulsifiers include, above all, mixtures of higher fatty alcohols and/or fatty alcohol sulfonates, such as the products known under the trade name Lanette Wax.

The base for cosmetics according to the invention contains preferably about 10-60% parafiins, depending on the desired consistency of the cosmetic. Owing to the ease with which these parafiins can be emulsified, and because of their odorlessness and harmlessness, the paraf' fins may be used in such large quantities that it is possible, as contrasted with the use of turpentine, to make a cosmetic, e.g., a mascara, in semiliqu-id form. Such a cosmetic has the advantage that it can be applied easily and in a very thin layer. Besides, it is more economical in consumption than the previous, thicker emulsions, which adhere to the tube walls so that when the contents of the tube are gradually consumed, part of it always remains in the tube without utilization, whereas the more fluid product can easily be squeezed out of the tube and be entirely removed therefrom.

The base for cosmetics according to the invention may desirably contain small additions of a drying oil and/ or a fatty oil. The presence of a drying oil, such as linseed oil, promotes a rapid drying of the cosmetic on the surface to which it is applied and prevents a subsequent smearing or sticking together of eyelash hairs. The fatty oil, such as castor oil, improves the suppleness and supplies a nutritive substance to the skin.

The quantitative proportions of the components may lie Within the following limits:

Percent by weight Wax (beeswax, ceresine or the like) 20-30 Paraffin mixture 10-60 Emulsifier (such as Lanetta Wax N) 5-10 Water 10-40 Drying oil, such as linseed oil 0-5 Fatty oil, such as castor oil 0-8 In the following examples, specific compositions of the base for cosmetics according to the invention are disclosed, whereas the invention is not restricted thereto.

Example 1 Percent by weight Beeswax 20 Shellsol-T (isoparaflin mixture boiling point between C. and about C.) 60 Castor oil 2 Lanette Wax 5 Water 13 Example 2 Beeswax 30 Shellsol-T 12 Castor oil 8 Lanette Wax N 10 Water 40 Example 3 Beeswax 25 Shellsol-T 30 Lanette Wax N 10 Water 3 5 Example 4 Beeswax 26 Shellsol-T "30 Castor oil 5 Linseed oil 4 Lanette Wax N 10 Water 25 I claim:

1. A base for a mascara, comprising an aqueous emulsion containing, by weight, about 20-30% wax, about lO-60% of a mixture of linear paraffins substantially free of aromatics, which mixture has a boiling range between about 160 C. and about 200 C., about 5-10% of an ern-ulsifier selected from the class consisting of higher fatty alcohols, higher fatty alcohol sulfonates and mixtures thereof, and about 10-40% water.

2. A base as claimed in claim 1, which contains up to 5 percent by weight of a drying oil.

3. A base as claimed in claim 1, which contains up to 10 percent by weight of a fatty oil.

4. A base as claimed in claim 1, which contains up to percent by weight of a drying oil and up to percent by weight of a fatty oil.

5. A base as claimed in claim 1, in which said Wax comprises beeswax.

6. A base as claimed in claim 1, which contains up to 5 percent by weight of linseed oil.

7. A base as claimed in claim 1, which contains up to 10 percent by weight of castor oil.

8. A base as claimed in claim 1, which contains up to 5 percent by weight linseed oil and up to 10 percent by weight castor oil.

9. A base as claimed in claim 1, which said mixture consists of isoparaffins.

10. A base as claimed in claim 9, in which said mixture has a boiling range between about C. and about C.

4- References Cited by the Examiner UNITED STATES PATENTS 5 FOREIGN PATENTS 208,806 6/57 Australia.

OTHER REFERENCES Bennett, Commercial Waxes, Chem. Pub. Co., New York, 1956, pp. 509, 537, 604, 611.

Shellsol T, Shell Oil Co., New York, booklet pp. 1-3, February 1961.

Zimmerman et al., Handbook of Material Trade Names 15 Industrial Research Service, Dover, N.H., Supp. 1 to 1950 Ed. (1956), pp. 213 214.

JULIAN S. LEVITT, Primary Examiner.

MORRIS O. WOLK, LEWIS GOTTS, Examiners.

Claims

1. A BASE FOR A MASCARA, COMPRISING AN AQUEOUS EMULSION CONTAINING, BY WEIGHT, ABOUT 20-30% WAX, ABOUT 10-60% OF A MIXTURE OF LINEAR PARAFFINS SUBSTANTIALLY FREE OF AROMATICS, WHICH MIXTURE HAS A BOILING RANGE BETWEEN ABOUT 160*C. AND ABOUT 200*C., ABOUT 5-10% OF AN EMULSIFIER SELECTED FROM THE CLASS CONSISTING OF HIGHER FATTY ALCOHOLS, HIGHER FATTY ALCOHOL SULFONATES AND MIXTURES THEREOF, AND ABOUT 10-40% WATER.