Composition containing semicrystalized polymer gelled liquid fatty phase

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

Inactive Publication Date: 2003-01-15
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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Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment Embodiment 1

[0147] 120 g of Parleam were 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. The following mixture C was added over 2 hours at 80 °C 1 : 40 g cyclohexane + 4 g Triganox 141 [2,5-bis(2-ethylhexanoylperoxy)-2,5-dimethylhexane]. After 30 minutes, in mixture C 1 Add mixture C over 1 hour and 30 minutes 2 , whose composition is as follows: 190g stearyl acrylate+10g acrylic acid+400g cyclohexane. After the addition of both, the reaction mixture was allowed to continue at 80° C. for 3 hours, and then all cyclohexane in the reaction mixture was distilled off at atmospheric pressure. A polymer containing 60% by weight of active ingredient in Parleam is then obtained. Its weight average molecular weight M w It is 35000, characterized by polystyrene equivalent, and its melting temperature M.t. is 40°C±1°C, measured by D.S.C. Example 2: Basic polymer with a melting point of ...

Embodiment 2

Embodiment 4

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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 compositions for the care and / or treatment of the skin (including the scalp and / or the lips of the human face) and / or cosmetics, comprising a liquid fatty phase structured by at least one specific polymer, which composition may in particular be Available in lipstick stick form, application gives a glossy, non-sticky coverage coat. technical background [0002] Structured (or hardened) liquid fatty phases are common in cosmetic and dermatological products; this is especially the case for solid compositions such as deodorants, lipsticks, lipsticks, concealers and casting 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 normal pressure (760mmHg), and it is composed of one or more mutually compatible, liquid at room temperature Fatty substances (also known as oils) make up. The fatty phase is macroscopically homo...

Claims

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Application Information

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