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Composition containing semicrystalized polymer gelled liquid fatty phase

A semi-crystalline polymer and composition technology, which can be used in pharmaceutical combinations, medical preparations containing active ingredients, and fat generation, etc., can solve the problems of lack of gloss of the composition, uncomfortable feeling of use of the composition, etc.

Inactive Publication Date: 2007-05-02
LOREAL SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the specific crystalline structure of the wax, the waxes used so far also leave the composition dull
Furthermore, it often makes the composition uncomfortable to use

Method used

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  • Composition containing semicrystalized polymer gelled liquid fatty phase
  • Composition containing semicrystalized polymer gelled liquid fatty phase

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0150] Example 1: Acidic polymer with a melting point of 40°C

[0151] 120g Parleam was added to a 1-liter reactor equipped with a central anchor stirrer, reflux condenser and thermometer, and heated from room temperature to 80°C over 45 minutes. Add the following mixture C after 2 hours at 80℃ 1 : 40g cyclohexane+4g Triganox 141 [2,5-bis(2-ethylhexanoylperoxy)-2,5-dimethylhexane]. After 30 minutes, in mixture C 1 Add to mixture C after 1 hour and 30 minutes 2 , Its composition is as follows: 190g stearyl acrylate+10g acrylic acid+400g cyclohexane. After the two were added, the reaction mixture was allowed to continue to act at 80°C for 3 hours, and then all cyclohexane in the reaction mixture was distilled off under normal pressure. Then a polymer containing 60% by weight of active ingredient in Parleam is obtained. Its weight average molecular weight M w It is 35000, characterized by polystyrene equivalent, and its melting temperature M.t. is 40℃±1℃, measured by D.S.C.

Embodiment 2

[0152] Example 2: Basic polymer with a melting point of 38°C

Embodiment 3

[0154] Example 3: Acidic polymer with a melting point of 60°C

[0155] The same procedure as in Example 1 was applied, but instead of stearyl acrylate, behenyl acrylate was used. The resulting polymer is 60% by weight of the active ingredient present in Parleam, and its weight average molecular weight is M w It is 42000, and the melting point M.t. is 60°C.

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Abstract

New composition comprises an oil phase thickened with a low-melting semi-crystalline polymer (I) that is solid at room temperature, has a melting point below 50 deg C, has a number-average molecular weight above 2000 and comprises one or more crystallizable side chains and / or crystallizable backbone sequences. An Independent claim is also included for the cosmetic use of a high-melting semi-crystalline polymer (II) in a composition comprising a continuous oil phase as an agent for thickening the oil phase in the absence of waxes and / or fillers to form a solid with a hardness of 100-350 gf, where (II) is solid at room temperature, has a melting point of at least 50 deg C, has a number-average molecular weight above 2000 and comprises one or more crystallizable side chains and / or crystallizable backbone sequences.

Description

Technical field [0001] The present invention relates to a skin (including the scalp and / or human facial lips) care and / or treatment and / or cosmetic composition, which contains a liquid fatty phase structured by at least one specific polymer, and the composition can be specifically It is made into a lipstick strip, and after application, a shiny, non-sticky covering coating can be obtained. technical background [0002] Structured (or hardened) liquid fatty phases are common in cosmetics and dermatological products; especially in the case of solid compositions such as deodorants, lipsticks, lipsticks, masks, and molded foundations. [0003] The phrase "liquid fatty phase" as defined in the present invention refers to a fatty phase that is liquid at room temperature (25°C) and atmospheric pressure (760mmHg), and is composed of one or more mutually compatible and liquid fatty phases at room temperature. Fatty substances (also called oils) constitute. The fatty phase is macroscopical...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K8/72C08L53/00A61Q1/04A61K8/00A61K8/31A61K8/90A61K8/92A61K9/00A61K9/14A61K31/74A61L9/00A61L9/01A61Q1/00A61Q1/02A61Q1/06A61Q1/10A61Q1/12A61Q5/00C08J3/00C08K3/00C08K5/00C08K5/01C08L1/00C08L31/00C08L33/00C08L33/06C08L39/00C08L91/00C08L101/00C11B15/00
CPCA61Q1/06Y10S514/844A61K8/8152A61K2800/31A61K8/8182
Inventor J·蒙德特V·菲拉里
Owner LOREAL SA
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