CS213680B1 - Emulsion cosmetic products with immediate effect moisturizing and emollient - Google Patents

Abstract

Emulsion cosmetic preparations with immediate moisturizing and softening effect. The invention relates to cosmetic preparations with immediate moisturizing and softening effect. The essence of the invention are emulsion cosmetic preparations with immediate moisturizing and softening effect such as creams, balms, lotions, etc., containing water, fatty substances, natural and synthetic oils, natural and synthetic waxes, emulsifiers, dyes, stabilizers and preservatives, and other natural and synthetic ingredients characterized by the fact that they contain 3-(hydroxyalkylamino)-2-hydroxypropyl esters or 3- [bis-(hydroxyalkyl) amino]-2-hydroxypropyl esters of fatty acids as an active substance in a volume concentration of 0.2 to 30% with a benefit of 1 to 10%.

Description

BACKGROUND OF THE INVENTION The present invention relates to cosmetic compositions and to an immediate moisturizing and emollient effect

Drying the skin and removing the natural protective fat layer is one of the reasons for its premature aging. It is therefore the task of modern cosmetics to keep the skin in the skin and restore the protective fat film. Existing cosmetic compositions such as creams, balms and the like seek to achieve this by forming emulsions containing fat and water, respectively. substances containing water and hygroacopic substances. These preparations rely essentially on the skin to receive water preferentially and then be protected by an oily film which will remain on the skin surface after application.

However, this selective effect is not particularly pronounced and the water content of the skin is generally considerably less than optimal in the short term in the known formulations.

The emulsion cosmetic compositions of the present invention provide a substantial improvement in efficacy.

The present invention is based on emulsion cosmetic formulations having an immediate moisturizing and emollient action such as creams, balms, lotions, etc., containing science, fatty substances, natural and synthetic oils, natural and synthetic waxes, emulsifiers, binders, stabilizers and preservatives, and other natural and synthetic components, characterized in that they contain as active ingredient 3- (hydroxyalkylamino) -2-hydroxypropyl esters or [3- bia- (hydroxyalkyl) amino] -2-hydroxypropyl esters of fatty acids of the general formula r-coo-ch ₂ -ch (OH) ) CH ₂ -N 2 wherein H is an alkyl or alkenyl group having 6 to 22 carbon atoms in the main chain

R 2 denotes 2-hydroxyethyl, 3-hydroxypropyl, 1-hydroxy-2-propyl, 2-hydroxy-1-propyl, 1-hydroxy-2-butyl, 1-hydroxy-3-butyl, 1-hydroxy-4-butyl , 2-hydroxy-3-butyl

R ₂ denotes Rp volume of hydrogen of 0.2 to 30%, preferably 1-10%;

This active ingredient acts in such a way that it does not prevent moisture from penetrating the skin and creating the necessary balance there. At the same time it creates or resp. it helps to form a greasy protective film on the skin to protect it from the adverse effects of weathering, especially from the drying effects of wind and sunlight. This effect is supported by a high degree of orientation of the substance molecules according to the above general formula on the skin surface. Cosmetic preparations containing this substance to make the skin soft and soft; this effect occurs almost immediately after application. The active substance can be prepared according to Art. Certificate No. 208 966.

The cosmetic compositions of the invention are illustrated in the examples in which all percentages are by volume.

Example 1 - Lotion

Ingredients:

oil vaseline 7.5 oil olive 7.5 cetaceum 3% extract of natural substances in etha-.

or water.

213 680 paraoxybenzoic acid esters aromatic compositions stearic acid glycerol ester compound of formula 1 wherein R is a mixture of coconut oil R _x = R ₂ = CH ₂ -CH ₂ OH

0.2

0.4 residue de 100% distilled water

The lotion of Example 1 was prepared by mixing the compound of formula (I) in a mixture of vaseline oil and water, and then mixing in a conventional manner with a mixture of the other components.

The compound of formula (I) was prepared according to U.S. Pat. No. 208 966 by heating to 100 ° C to the crude coconut oil fatty acid glycidyl ester (prepared from 167 parts by weight of coconut fatty acid potassium salt and an appropriate amount of 1-chloro-2,3-epoxypropane) 62 parts by weight of ethiethanolamine were added at vigorous stirring at a rate such that the temperature in the exothermic reaction did not exceed 140 ° C. After cooling, coconut oil 3- [bis (2-hydroxyethyl) amino] -2-hydroxypropyl ester was obtained in the form of a viscous oil: IR (capillary between

KBr windows) 3395_E (OH), 1733_O (CO-ester) cm s s^xExample 2 - Hand cream

The preparation of hand cream is followed

Ingredients:

oil vaseline oil sunflower oil silicone glycerol cetyl alcohol% natural drug extract in ethanol or water paraoxybenzoic acid esters aromatic compositions stearic acid ester with glycerol compound of formula I wherein R is a mixture of coconut oil

R _x = H, R ₂ = CH 8 -CH 8 -OH water distilled analogously to Example 1.

0.2

0.3 rest up to 100%

Example 3 - Skin creams

The preparation of felt creams was carried out in a similar manner to Example 1. Ingredients:

oil vaseline fatty oil vegetable vaeelins white wax bee isopropyl myristate cetyl alcohol% extract of natural substances in ethanol or water paraoxytenzoic acid esters aromatic compositions stearic acid ester with glycerol compound of formula I where R is capric acid (C 10) where Rj = R ₂ - CH ₂ -CH ₂ -OH distilled water

0.2

0.5

0.2

0,5 residue up to 100% residue up to 100%

213 880;

The compound of formula (I) was prepared according to U.S. Pat. No. 208,966 by mixing 6.85 parts by weight of decanoic acid glycidyl ester (capric acid) with 3.15 parts by weight of diethanolamine and heating the mixture to 90 ° C with stirring. At this temperature an exothermic reaction occurred and the temperature rose to 150 ° C. After the exothermic reaction had subsided, the reaction mixture was stirred for a further 15 minutes at 120 ° C. Pe cooling gave the product 3- / bis (2-hydroxyethyl) amino / -2-hydroxypropylestsr decanoic acid I (R = 0Ηβ (0Η ₂₎ θ- = R ₂ = CH ₂ CH ₂ 0H), as a viscous oil, IR (capillary between KBr windows) 338O _e (OH), 1733. (CO-ester) cm -1 \ ss

Example 4 - Foot Balm

Ingredients:

oil vaseline oil vegetable oil silicone vaseline white wax bee cetaceum glycerol fragrant composition stearic acid glycerol ester of formula I wherein R is a mixture of coconut oil Rj + H, R ₂ is 1-hydroxy-4 butyl water distilled

6

0,5 residue up to 100%

The leg lotion of Example 1 was prepared by mixing the compound of formula (I) in a mixture of petroleum jelly and water, and then incorporating it in a conventional manner into a mixture of other components.

213 880

All of the examples provided cosmetic products which gave a very pleasant skin softness, as a result of the formation of a protective film, retained and restored the water content of the skin very effectively, which was manifested by suppleness. As a result, the formulations almost immediately after application were very refreshing.

Claims (1)

Emulsion cosmetic preparations with immediate moisturizing and emollient such as creams, balms, lotions, etc., containing water, fatty substances, natural and synthetic oils, natural and synthetic waxes, emulsifiers, colorants, stabilizers and preservatives, and other natural and synthetic ingredients characterized in that 3- (hydroxyalkyl amino) -2-hydroxypropyl esters or 3- [bis- (hydroxyalkyl) amino] -2-hydroxypropyl esters of fatty acids of the general formula b-coo-ch ₂ -ch (OH) ₂ where n is alkyl or alkenyl of 6 to 22 carbon atoms in the backbone R 2 denotes 2-hydroxyethyl, 3-hydroxypropyl, 1-hydroxy-2-propyl, 2-hydroxy-1-propyl, 1-hydroxy-2-butyl, 1-hydroxy-3-butyl, 1-hydroxy-4-butyl 2-hydroxy-3-butyl R ₂ represents R, volume of hydrogen _Λ 0 2-30% and preferably 1-10%.