DE2116787B2 - Cosmetic emulsion and process for its preparation - Google Patents

Description

R '

-CH ₂ C CHj C ... CU, C CH ₂ C-

wherein R represents a "radical of formula (a)

(C) --CON

where R 'a

hydrogen

means

I where R 'denotes a methylresl

- COOR ₅

R ₁ and R ₂ , which can be the same or different, represent a hydrogen atom or an alkyl radical with 1 to 4 carbon atoms, a saturated hydrocarbon chain with 6 to 18 carbon atoms, a methyl or ethyl radical and a saturated hydrocarbon chain with 5 to 26 carbon atoms, and the hydrophilic sequence corresponds to the formula:

R "R" R "R"

I I I

Hv-C-CH ₁ -C ... CH ₁ -C-CH ₁ -C-- '

"I" I "I" I

R- R- R '"R

wherein R "denotes a radical of the formula: (a) -COOH

(b) —COO — Υ —Ν

R /

(C) -COO-Υ -N HX \

R, '
(d) -C = N

where R "is a

Means methylresi

Ie)

.Π

(.V

N. HX

lh)

Ik)

<>. HX

Ri

HX

R ₁ '

where R "a
Means hydrogen atom

RJ and R ₂ , which can be the same or different, represent a hydrogen atom or a lower alkyl radical with 1 to 4 carbon atoms,

Y is a saturated hydrocarbon chain with 2 to 4 carbon atoms or a through Heteroatoms, e.g. B. oxygen and sulfur, substituted hydrocarbon chain with 2 to 4 carbon atoms,

HX a mineral or organic acid from the group of hydrochloric acid, hydrobromic acid, Lactic acid and acetic acid.

3. Process for producing a "water-in-oil" or "oil-in-water" emulsion after a of the preceding claims, characterized in that after mixing the Sequence polymer with the "oil" part at a temperature of 150 ° C to this brought to 80 ° C Mix while stirring, add the "water" part, which itself has been brought to a certain temperature beforehand of about 80 ° C has been heated, and that you finally the mixture with stirring up to Ambient temperature cools down.

4. The method «according to claim 3, characterized in that that the "water" part is mixed with acetic acid, lactic acid and / or hydrochloric acid will.

The invention relates to new emulsions of the "water-in-oil" and "oil-in-water" types.

Attempts have already been made to use cosmetic products such. B. to make make-up or beauty creams, which are in the form of "water-in-oil" emulsions, since they are dispersed in the oily phase State of retained water in certain cases

cine better hydration of the epidermis and one better protection of the same guaranteed. To date, however, it has been difficult to make cosmetic products this Type on the market, because two of the »water-in-oil emulsions have always been used up to now Types of Difficulties on:

First, the emulsions must not be inverted; i.e., they must not be diluted convert with water into emulsions of the "oil-in-water" type. In addition, they must be in the form of Emulsions present cosmetic products sufficiently resistant to be their free dispersed Maintaining structures in spite of storage times, which can be several years, and in spite of considerable Temperature fluctuations, which in general result in the destruction of the emulsion due to the loss of the disperse Favor the condition of the aqueous phase, a risk that occurs particularly when the Emulsions are exposed to low temperatures.

It has now been proposed, as an emulsifier in such emulsions, a mixture of one Oxypropylene polyglycerin alcohol and magnesium isostearate, Succinic acid esters of polyoxyalkyl fatty alcohols or of oxypropylene-oxyethylene alcohols to use. In addition, it is already known, as an emulsifier in cosmetic compositions, especially in creams, to use polymers that are built up from a sequence, obtained by the polymerization of propylene oxide, grafted onto the two sequences obtained by the polymerization of ethylene oxide. Such copolymers are known as "Pluronics".

It has now been found, surprisingly, that it is possible to produce very good cosmetic emulsions, by using a number of sequential polymers as emulsifiers. Such polymers are known and certain of them have already been used as additives in lubricants for Motors proposed.

It is known that the various monomers used in the production of copolymers can be classified in different ways with the formation of the polymer chain, and in general, the polymerization processes make it possible to rely on the preparation of this or that type of polymer set up. In particular, it is with a precisely defined polymerization process possible to obtain copolymers whose monomer units are spaced apart where these groupings are referred to as a "sequence". Such copolymers are referred to as "sequence copolymers". The sequence polymers are generally to bipolymers that have two types of sequences, each of which is identical Monomers is built up. The number of sequences is generally 2 or 3.

The copolymers that have two sequences are called "bissequence copolymers" and the distribution of the monomer units in the polymer chain can be shown as follows will:

AA ... AABB ... BB.

The copolymers that have three sequences are generally called "tri-sequence copolymers" and the distribution of the monomer units in the polymer chain can be as follows being represented:

AA ... AABB ... BBAA ... AA.

The aim of the present invention is an emulsion of "water in oil" which can be used in cosmetics. or "oil-in-water" type, characterized in that they use at least one quenching agent as an emulsifying agent contains that at the same time at least one lipophilic sequence and at least one hydrophilic Having sequence.

The lipophilic sequences are obtained from monomers with lipophilic chains, while the hydrophilic Sequences can be obtained from monomers with hydrophilic chains. The lipophilic sequences of the sequence polymer according to the invention can be represented by the following formula:

R '

R 'R' R '

I I I

H-CH -, - C-CH, -C ... CH, -C-CH, -C-

"I" I "I" I

RR RR

in which R denotes a radical of the formula

R 'means a hydrogen atom

(C)

and

—CON

R ₄

(d) -COOR ₅

R 'means a methyl radical

R ₁ and R ₂ , which can be the same or different, represent a hydrogen atom or an alkyl radical

with 1 to 4 carbon atoms, R _{3 is} a saturated hydrocarbon chain with

6 to 18 carbon atoms, R _{4 is} a methyl or ethyl radical and

R _{5 is} a saturated hydrocarbon chain with

5 to 26 carbon atoms.

The hydrophilic sequences of the sequence polymer according to the invention can be given by the following formula can be displayed:

R "R" R "R '

Il Il

• CH, -C-CH, -C. .. CH ₁ -C-CH ₁ -C

"I" I "I" I

R "R '" R ■■ R'

wherein R "denotes a radical of the formula
(a) -COOH

| b) - COO-Y-N

Ic) —COO-Υ —Ν HX

R, '
(d) -C = N

R '"means
a methyl residue in

- r ^V N. HX

, HX

// V

R2

HX

R '" means a
Hydrogen atom

r,

RJ and R ' ₂ , which can be the same or different, represent a hydrogen atom or a lower alkyl radical with 1 to 4 carbon atoms,

Y is a saturated hydrocarbon chain with

2 to 4 carbon atoms or one carbon Hydrogen chain with 2 to 4 carbon atoms, which is replaced by heteroatoms, such as. B. oxygen and sulfur interrupted is,

HX is a mineral acid or an organic one

Acid from the group consisting of hydrochloric acid, hydrobromic acid and lactic acid and acetic acid.

If R "denotes a carboxylic acid function, this function can be carried out by a mineral or organic one Base, such as B. ammonia, monoethanolamine, diethanolamine, triethanolamine, the isopropylamine, Morpholine, 2-amino-2-methyl-1-propanol, 2-amino-2-methyl-1, 3-propanediol neutralized or converted into a salt « be transferred in the form of the sodium, potassium or magnesium salt.

Examples of monomers that lead to the formation of lipophilic Sequences are the monomers styrene, 4-methylstyrene and l.auiylmethaeiylai.

Examples of monomers that / ur formation of hydrophilic sequences are the monomers 2-vinylpyridine, its hydrochloride and its lactate, p-dimethylaminosiyrene. its hydrochloride and its lactal, 2- (N, N-dimethylamino) ethyl methacrylate, 2- (N, N-diethylamino) ethyl methylate. 2 - (N, N - dimethylaminojalhy.'glycol methacrylate. 2- (N, N-diethylamino) ethy! Glycol methacrylate. Methacrylonitrile.

According to a variant of the invention, the hydrophilic sequences, the tertiary amine functions contain, with a quaternizing agent, for example from the group of dimethyl sulfate, ethyl biomide or // - bromoalhanol. quaternized. The molecular weights the sequence polymers used according to the invention can vary within wide limits. They are generally determined as a function of the properties sought for the emulsifier.

The sequence polymers according to the invention generally have a molecular weight between about 1000 and 1,000,000, preferably between 8,000 and 700,000. The ratio of the length of the sequences can also vary within very wide limits, and it is generally determined by the intended copolymer is applied to the same, d. H. a "water-in-oil" or "oil-in-water" emulsion. The sequence polymers according to the invention can in fact also be used for production can be used by "oil-in-water" emulsions if the sequence polymer is soluble in water and yet has a certain affinity for oils.

One of the most characteristic and important properties of the sequence polymers is that each of the sequences has the properties of the corresponding homopolymer. Depending on the choice of Sequences can be obtained sequence copolymers that are hydrophilic and lipophilic at the same time, but their hydrophilic or lipophilic character is more or less pronounced.

The aim of the invention is also a new technical product, which is a cosmetic product or a Represents a carrier (excipient) for a pharmaceutical product and is characterized in that it (it) is in the form of an emulsion of the "water-in-oil" or "oil-in-water" type containing at least one Sequence polymer as defined above. will be produced.

The proportion of the emulsifying agent in the emulsion according to the invention can be very broad Limits vary, for example from 5 to 20% by weight, while the proportion of water of about 20 to 75 wt .-%, based on the total weight of the Ingredients, may vary. In general, the amount of emulsifier, based on the Mixture of oil plus wax, at least 10%. The proportion of the mixture oil plus wax is in generally, based on the total weight of the emulsion according to the invention, between 20 and 65 wt%.

According to the invention, the most varied of substances can be used for the preparation of the oily phase of the emulsions Use products, e.g. B.

Hydrocarbon oils such as paraffin oil, viscous (thread-pulling) petroleum jelly, perhydrosqualene,

Sungcn of microcrystalline wax in paraffin oil and purcclin oil;

animal or vegetable oils, such as. B. horse mane oil, lard, sweet almond oil, calophylium oil, olive oil and avocado oil, where <; these oils are well absorbed through the skin but in certain cases go rancid;
saturated, non-rancid and well penetrating esters, such as. B. Isopropyl palmital, isopropyl myristate, ethyl palmilate, diisopropyl adipate and the triglycerides of octa- and decanecarboxylic acids.

In addition to the oily phase, silicone oils soluble in the other oils or else phenylethyl alcohol can also be used; be admitted. In certain cases one can in order to favor the retention of the oils. Waxes, such as B. Carnauba wax, candy lilac wax, beeswax, Use microcrystalline wax and ozokerite wax.

As adjuvants for the oily phase, you can also use long-chain fatty alcohols, such as. B. the fatty alcohol of beeswax, cholesterol, lanolin alcohol and magnesium stearate. The invention Emulsions allow the most stylish cosmetic products to be produced, for example of moisturizing creams, base creams for the complexion, make-up, liquid creams, brillantines (hair oils), Sun protection products.

The aim of the invention is also a method for so Production of "water-in-oil" and "oil-in-water" emulsions from emulsifying agents derived from the above defined sequence polymers exist.

This manufacturing process is essentially characterized in that in a first y, stage the sequence copolymer is mixed with the "oil" phase with vigorous stirring and at a temperature of about 150 "C, then after cooling to a temperature of about 80" C in a second stage introduces the "water" phase into the mixture of sequence polymer plus oil-wax with vigorous stirring, which is or is not provided with an addition of hydrochloric acid, lactic acid or acetic acid and which has previously been brought to the same temperature, after which the mixture is cooled to ambient temperature, always with stirring. Finally, one can send the emulsion through a roller grinder to refine it. Although the process for preparing the sequence polymers is known, the basic steps which lead to their formation are explained again below.

These polymerizations are generally initiated by so-called "anionic" starters, which are im general metals belonging to the first group of the periodic table of elements, such as B. Lithium, sodium, potassium, etc. or organic compounds of these metals. Examples of such Compounds are Diphenylmethylsodium, Fluorcnyllithium, Fluorcnylnatrium, Naphthalinsodium, Potassium Naphthalene, Naphthalene Lithium, Tetraphthalene Disodium Butane, Phynylisopropyl Potassium. The vote The polymerisation initiator is indeed very important because it enables the structure of the To determine sequence polynierisats. So with Nuphlhalinnalrium it is possible to start the polymerization the production of a "triscence" mixed polymer align, while it is in contrast /, to do so with Phenylisopropylpotassium is possible, the polymerization to the production of a »bisquencew polymer align. These polymerization reactions that lead to the formation of sequential polymers lead, take place in proton-free solvents, such as. B. benzene, tetrahydrofuran, toluene and so on Further. Trisquence polymers, for example, are prepared quite generally as follows:

First, a solution of the starter is prepared in the selected solvent, then one of the monomers is added which is to lead to one of the sequences, after the polymerization of this monomer (the polymerization takes place within a * period of a few minutes), the second is added To monomers, which should lead to the formation of the other two sequences, these two other sequences incorporate (attach) symmetrically to the sequence of the first monomer. After the end of the polymerization, the trisquence polymer is deactivated with the aid of a few drops of methanol. In general, leading to the formation of these polymers sequence reaction is conducted at a temperature of about - 70 ⁰ C performed. With regard to the preparation of sequential polymers, these polymerization reactions can obviously not be carried out with monomers which have mobile hydrogen atoms, such as. B. Acids, amides, etc. If you want to produce sequential polymers which have acid functions, amide functions, etc. in one of their sequences, one must consequently start from monomers which can ultimately lead to the formation of a function of this type by chemical reaction. For this purpose it is possible, for example, to start from monomers which have a nitrile function or an ester function. This is because it is possible to obtain the corresponding acids by hydrolysis and finally to obtain the corresponding amides by amidation. Such a procedure can be used if one wants to produce lipophilic sequences composed of methacrylamide residues or hydrophilic sequences composed of methacrylic acid residues.

For a better understanding of the present invention, some examples of embodiments are given below explained. The compositions described in the following examples are obtained in each case by preparing the emulsions as described above.

example

Production of a lauryl-2-vinylpyridine methacrylate bisequence polymer

In one with a mechanical stirrer, two bromine ampoules, a graduated tube, a nitrogen inlet tube, an immersion tube for taking samples of the reaction mixture during the reaction and a thermometer 1 liter of anhydrous, distilled tetrahydrofuran. After that, the glass flask is filled with a methanol / dry ice mixture cooled to a temperature of - 70 "C. The entire apparatus is under a nitrogen atmosphere, which are carefully cleaned by heating to 400 "C in the presence of copper flakes was, the nitrogen stream by passing through anhydrous Kaliiimhydroxycl and through anhydrous Magni'sium perchlorate was also cleaned.

9 10

A solution of diphenyl methylnairium is added drop by drop through the graduated tube as soon as it is possible to deactivate it with methanol and stirring, and then add the anhydrous, distilled tetrahydrofuran for purification. Bisesequenzpolymerisats applied method ge-At the beginning of the addition, the solution of the has been purified discolored, the determination of its molecular diphenylmethylsodium, as soon as it with the tetra- ■; weight using the same method: hydrofuran comes into contact with the glass flask. .. _ίη ηηη ι // m / μι. _η11ί The addition of the diphenyl- ^M " = ⁶⁰⁰⁰⁰ <''''"'' ^(MeOH > = ° ' ²³⁶ "methylsodium solution) is then continued until a brownish-red color persists in the reaction flask Then, sequence polymers were prepared according to the same method through the same graduated tube, as described above, 2.82 ml of a solution, also under a nitrogen atmosphere, which contains 247 mg of diphenylmethylsodium examples of compositions in tetrahydrofuran. 30.3 g of carefully purified 2-vinylpyridine η are added quickly through one of the bromine ampoules under nitrogen and stirring under Example A

in the flask. According to the invention, the temperature inside the man makes a liquid cream Piston rises within a few minutes on the following composition: - 62 ° C, while the discoloration of the reaction mixture becomes darker. Using the immersion tube, copolymer no. 3 7 g

a small amount of the paraffin oil 40 g is removed by suction

Solution of the "living" polymer of 2-vinyl microcrystalline wax 3 g

pyridine in tetrahydrofuran, which is used to calculate water 50 g

serves its molecular weight. Once the indoor.

If the temperature of the flask falls again, example B is quickly given

22.4 g 21 through the other bromine ampoule under nitrogen. According to the invention, a complexion foundation is created

carefully purified lauryl methacrylate in the following composition:

ben. The temperature rises to about -62 "C, and .. · ■,., -N r> · · ■. -, _Λ

as soon as the exothermic reaction of the polymerization mixed polymer according to Bcisp.el 1 .. 7.4 g

"..,, 1. · ■. j η r> 1 Parafnnol 20u

ceases, one deactivates the "bissequence" polymer _p,. . _Ί . ^b

sat, the two sequences of which are from lauryl polymeth- 10 TitTnox d ^ 15 ·

acrylate and polyvinyl-2-pyridine are built up. In the " ! "'^

Generally, this last stage is p using, '_ ^

a few drops of methanol carried out. The solution ... '''.'.'.,' I Y. '' 'Y, Y ₁ ' \ . '/

then becomes practically colorless, one distills the water + lactic acid (3.4 g) 45.4 g

Tetrahydrofuran and dissolves the remaining r> Examples

Polymer in chloroform, then one falls through " _r , -on _kl ■,

Petrolä. From. After twice dissolving in CHIO _r Erfindungsgeniaß provides you c.ne night cream

roform and twice precipitating with petroleum ether ^fol S ^cnden composition:

the polymer is copolymer under reduced pressure according to Example 1 .. 7 g

dried. This gives 30 g of dry polymer -w paraffin oil 22.1 g

(Yield 60%), the molecular weight of this mixed isopropyl palmitate 10 g

Polymer, determined according to the Lichtdiffusionsme- Purcellin-Öl 12 g

method in solution in methanol, M _p = 110,000 bleached ozokerite is 2.5 g

djd _c (MeOH) = 0.184. Water + hydrochloric acid

The removal of the polyvinyl-2-pyridine-homopoly- ■ »'> (1.4 g) 46.4 g

Tabel I. Monomer I. Monomcr 2 lot solution Catalysis yield Middle d "/ 4 Hlemcn- L / H. I 2 Kaialy- salary in "λ, Molecular (THF) tar- based »Bisesequenzw-Polymerisat salor mcnge weight analysc on the No. of in till in % Weight, Mixed by doing polymes Mixed poly risats (el (ml) (mg I mcrisat 2 vinyl Lauryl 30 15 20th 1632 ") 45 967,000 0.113 C 73 66/34 pyridine methacry H 9.6 (H) lat (L) N 4.5 2 2-dimethyl the same 7 12.5 30th 4400 ") 41 8,000 0.079 C 74.4 90/10 aminoethyl 11 11.6 mcthacry- N 0.9 3

lat (H)

ι 11 lOltSL't / llllg 21 16787 Monomer 2 Minieres 12th L-LH-HL U lot 5 Hlemen L / H. ί No. of monomer 1 monomer H -HL-LH - H I. 13th tar- based Mixeli d "'d. Il 30th analysc aul'das "'. pol.MllC- 2 amount of solution KaIaI) - AusbetilL (THF) H -HL-LH - H 1, in % Weight, i risals 1 2 Ka!.;!. "- salor- in "i> H -HL-LH - H 4th by doing sator lot molecular II -HL-LII IJ Ig) 5 Mixed poly in Till 2-vinyl pyridine (H) good II —HL — LH 20th merisat the same - II 20th 13th C 74.5 90/10 4 the same. the same - H 20th 30th H 11.4 IgI (mil (possibly 4-vinyl pyridine (H) 0.079 L. 6th 5 N 0.9 7 12.5 6 430 ^{; l} ) 15.8 the same L. 6th Π C 74.5 91/9 '■ 5 the same. 2-dimethylamino 109,000 - H 20th 2 H 11.4 ethyl methacrylate (H) 0.079 N 0.8 7 27.5 6 430 ^a ) 32 the same Il 20th 5 C 87.9 31/69 S 6 styrene (L) 2-vinyl the same 254,000 - H 20th 3 H 7.6 pyridine 0.181 - Il 11 10 N 4.1 (H) 7 5 25 1260 ^h ) 67 - H 11 2 C 85.1 50/50 7 the same. 15 400 5 H 7.5 0.182 N 6.6 7 IO 25 1260 ^h ) 80 5 The Kuchsiahc "L" means lipophilic. 270,000 5 . The Duchsiahc "H" means hydrophilic. 5 Ί Diphcnj imelliyl sodium. 20th ' ¹ I l'hcnj lisoprop)! Potassium. Monomers I. then through mopolymerisalion des The production of the above-mentioned "Hisci | Ucn /" mixed polymers is successful! through hi Interpolymerization of the homopoly mer with the monomers solution Kataly Table II Kataly sator amount »TrisesequenceM mixed polymer Type of copolymer sator (mg). No. of monomer I. in THF Naphlha- Mixed liii- polymes (ml) sodium risats 12th 543 12th 543 H - HL - LH 12th 543 ) 8 styrene (L) H -HL-LH 5 3 408 ; 9 the same. H -HL-LH 3 408 ; ■ 10 the same. H - HL - LH 12th 543 ; II 4-methylstyrene (L) H -HL-LH j 12 the same. H -HL-LH 12th 543 > 13 styrene (L) 12th 543 H-HL-LH 6th 816 j 14 the same. H -HL-LH 6th 816 j 15 the same. Lauryl methacrylate (L) L - LH - HL 6th 816 \ 16 2-vinylpyridine (H) the same "ι 17 the same. 2-dimethylamino 6th 816 18 lauryl methacrylate (L) ethyl methacrylate (H) 3 407 the same 3 407 1 19 the same. 4-vinyl pyridine (H) 12th 543 j 20 styrene (L) the same j 21 the same. 2-dimethylamino j 22 the same. methyl methacrylate (H)

Continuation of table II

No. of
Mixed
polymer Howling in% Minieres
Molecular
weight (THI-) I-.lcm
C. entaraiKiKse
Il N IH hc / ouen; uil
the weight, in
the Miselipolj-
merisai 8th 80 52,000 0.182 91.3 9.0 <1 > 93 7 9 76 57,000 0.174 84.1 7.3 7.7 42'58 IO 74 50000 0.178 89.5 7.8 2.4 82 18 11 40 55,000 0.183 91 8th <1 > 937 12th 35 71000 0.167 89.7 8th 1.3 89.9 9.1 13th 60 78,000 0.153 82.5 8.5 2.6 71 29 14th 55 196 000 0.142 77.3 8.5 2.6 58.5 41.5 15th 50 202 000 0.131 74.5 7.0 4.5 49.5 50.5 16 50 40000 0.150 76.4 9.5 5.3 61 39 17th 41 46,000 0.116 76.4 9.7 5.4 60 40 18th 20th 730000 0.082 58.9 9.2 6.8 27 '75 19th 40 880,000 0.080 61.4 9.8 7.4 17 83 20th 44 66,000 0.189 92.2 7.5 <1 > 92.5 7.5 21 27 65,000 0.195 92.7 7th <| > 92 "^ 22nd 60 78,000 0.153 82.5 8.5 2.6 7129

The above-mentioned “TriscnzH mixed polymers” are produced by homopolymerization of monomer 1 and subsequent copolymerization of the homopolymer with monomer 2.
"L" means lipophilic. and
"H" means hydrophilic.

Example D Example F

According to the invention, a milk of the following is produced According to the invention, a hydrating one is produced the composition: make sun milk of the following composition:

Copolymer No. 4 12 g

Paraffin oil 18g

Viscous Vaseline 8 g

Octa- and decanecarboxylic acid triglyceride 10 g

Ozokerite 2 g

Water + acetic acid 50 g

Example E.

According to the invention, a daily make-up is produced with the following composition:

Copolymer No. 10 15g

Viscous Vaseline 6 g

2-octyl-1-dodecanol 2 g

Isopropyl palmitate 5 g

Diisopropyl adipate 37.4 g

Candellila wax 2.5 g

Carnauba wax 2 g

D and C-Red No. 8 (dye)

OH

Copolymer No. 11 10 g

Octa- and decanecarboxylic acid triglyceride 6 e

ίο isopropyl myristate 11 μ

Diisopropyl adipate 30 g

Ozokerite 2 g

»Parsol-Ultra« from GIVAUDAN

(Sun protection filter) 2 g

Water + lactic acid (0.6 g) 39 g

Example G

According to the invention, a colored "Frcilicht" cream is produced the following composition:

Copolymer No. 13 10 g

Isopropyl palmitate 7 g

Diisopropyl adipate 28 g

Paraffin oil 6 g

Beeswax 2 g

Red iron oxide Ig

Yellow iron oxide Ig

Titanium Oxide Ig

Water + hydrochloric acid (0.7 g) 44 g

Example H

According to the invention, a cream for the base of the nails is prepared with the following composition:

Black P.iscnoxyd

Titanium oxide

water

0.1 µ

1.5 μ 2Ku

Copolymer No. 16

Isopropyl palmitate

Perhydrosqualene

Viscous Vaseline ....

20 g 30 µ

Carnauba wax 3 g

2-octyl-1-dodecanol 3 g

Water 30 g

Example I.

According to the invention, an "oil-in-water" make-up removal cream of the following composition is made from:

Copolymer No. 18 6 g

Octa- and decanecarboxylic acid

triglyceride 18g

Isopropyl palmitate 5 g

Paraffin oil 2 g

Water 69 g

The emulsions according to the invention are particularly suitable for the production of complexion foundations, Make-up and hand creams.

Of course, the embodiments described above are only used for explanation of the invention and are not intended to be limited thereto. These can be modified in any way desired without departing from the scope of the present invention. It is particular It is clear that several emulsifiers according to the invention can be used at the same time and, if appropriate, together can be used with other already known emulsifiers. Of course you can go to the Emulsions according to the invention incorporate all commonly used additives and in particular those which improve the stability and shelf life of the emulsions. Finally is also clear that the emulsions according to the invention in areas other than cosmetics and

can be used as excipients for pharmaceutical products.

Example J

According to the invention, a cream of the following is made the composition:

Copolymer No. 9 15g

Phenylethyl alcohol 40 g

Diisopropyl adipate 7 g

Water + acetic acid (4 g) 38 g

Example K

According to the invention, a cream is made with the following composition:

Copolymer No. 6 13g

Diisopropyl palmitate 5 g

2-octyl-1-dodecanol 5 g

Viscous Vaseline Ig

Diisopropyl adipate 26 g

Ozokerii 2 g

Water 42 g

Example L

According to the invention, a cream is made with the following composition:

Copolymer No. 3 10 g

Perhydrosqualene 25 g

Viscous Vaseline 14.5 g

Ozokerite 3 g

Water 47.5 g

809 516/13

Claims (2)

Patent claims: 1. Emulsion that can be used in cosmetics of the "water-in-oil" or "oil-in-water" type, characterized in that they as Emulsifier contains at least one sequence polymer which at the same time contains at least one lipophilic Has sequence and at least one hydrophilic sequence. 2. Emulsion according to claim 1, characterized in that the lipophilic sequence of the formula is equivalent to: