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Cosmetic or pharmaceutical composition comprising a condensation polymer, cosmetic treatment method, condensation polymer and preparation method

A technology of composition and polycondensation, applied in the field of cosmetic composition and preparation of said polycondensation, can solve problems such as incompatibility, and achieve the effect of low cost

Inactive Publication Date: 2009-01-21
LOREAL SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, these compositions and combinations, even though they significantly improve gloss, are still considered unsuitable from the standpoint of long-term maintenance of this gloss over time

Method used

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  • Cosmetic or pharmaceutical composition comprising a condensation polymer, cosmetic treatment method, condensation polymer and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0570] Embodiment 1: the synthesis of pentaerythritol benzoate / isophthalate / isostearate / stearate

[0571] 20 g of benzoic acid, 210 g of stearic acid, 70 g of isostearic acid and 100 g of pentaerythritol were added to a reactor equipped with a mechanical stirrer, an argon gas inlet and a distillation system, and then the mixture was gradually heated under a gentle stream of argon to 110-130°C in order to obtain a homogeneous solution. The temperature was then gradually increased to 180°C and maintained at this temperature for approximately 2 hours. The temperature was increased again to 220°C and maintained at this temperature until an acid number of less than or equal to 1 was obtained, which required about 11 hours. The temperature of the mixture was cooled to 100 to 130°C, and then 100 g of isophthalic acid was added, and the mixture was gradually heated to 220°C again for about 11 hours.

[0572] 450 g of pentaerythritol benzoate / isophthalate / isostearate / stearate polyc...

Embodiment 2

[0579] Embodiment 2: the synthesis of pentaerythritol behenate / benzoate / isophthalate / isostearate

[0580] 20 g of benzoic acid, 140 g of behenic acid, 140 g of isostearic acid and 100 g of pentaerythritol were added to a reactor equipped with a mechanical stirrer, an argon gas inlet and a distillation system, and then the mixture was gradually heated to 110-130°C in order to obtain a homogeneous solution. The temperature was then gradually increased to 180°C and maintained at this temperature for approximately 2 hours. The temperature was increased again to 220°C and maintained at this temperature until an acid number of less than or equal to 1 was obtained, which required about 11 hours. The temperature of the mixture was cooled to 100 to 130°C, and then 100 g of isophthalic acid was added, and the mixture was gradually heated to 220°C again for about 11 hours.

[0581] 440 g of a polycondensate of pentaerythritol behenate / benzoate / isophthalate / isostearate are thus obtain...

Embodiment 3

[0588] The following polycondensates were prepared in a similar manner to the previous examples (% values ​​are by weight):

[0589] Polyol (% and properties)

[0590] * "At 25°C" means that at 25°C, the polymer is 50% by weight soluble in Parleam; "at 70°C" means that at 70°C, the polymer is 50% by weight soluble in Parleam.

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Abstract

The invention relates to a cosmetic or medicine combination containing a polycondensate, the dressing method, the polycondensate and preparation method thereof. More particularly, the application relates to a cosmetic or medicine combination, especially a lipstick, which contains a polycondensate prepared by the reaction of: polyhydric alcohol containing 3-6 hydroxy groups, composition of some non-aromatic mono-carboxylic acid with melting point below 25 degrees centigrade and others with melting point above 25 degrees centigrade, composition of some aromatic mono-carboxylic acid containing 7-11 carbon atoms, straight / branched / circular chain saturated / unsaturated even aromatic polybasic carboxylic acid, cyclic anhydride and / or lactone which contains at least two carboxy groups can contain heteroatoms and / or the polybasic carboxylic acid. The application further relates to the dressing method using the combination, the polycondensate defined from above and the method for preparing the polycondensate.

Description

technical field [0001] The present invention relates to novel polymers of the family of polycondensates of the modified alkyd resin type, their use in cosmetic compositions, especially lipsticks, cosmetic compositions containing them and processes for the preparation of said polycondensates. Background technique [0002] There are a large number of cosmetic compositions in which, after application to keratinous substances (skin, lips, growths on the body surface), it is desired that the deposited film has a glossy property. Mention may be made, for example, of lipsticks, nail varnishes or certain hair products. [0003] In order to obtain such results, it is possible to combine specific starting substances, especially lanolin, and so-called glossy oils such as polybutene, although of high viscosity; or esters of fatty acids or fatty alcohols with a high number of carbon atoms or optionally certain vegetable oils; or also esters derived from the partial or total esterificati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/85A61Q17/04A61Q19/04A61Q19/00A61Q5/12A61Q5/10
CPCC08G63/20A61Q1/06A61K2800/26A61K8/85
Inventor P·朱斯蒂尼亚尼G·马尔
Owner LOREAL SA