Cosmetic composition containing polyurethane dispersion

A technology of cosmetic composition and polyurethane dispersion, which is applied in the direction of cosmetics, cosmetics, cosmetic preparations, etc., and can solve the problems of insufficient lasting power of barrier cream, inability to separate makeup and skin, and lack of film-forming properties

Inactive Publication Date: 2016-08-03
COVESTRO DEUTSCHLAND AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current segregation cream has insufficient durability and no film-forming properties, so it cannot achieve the expected effect of isolating makeup and skin.

Method used

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  • Cosmetic composition containing polyurethane dispersion
  • Cosmetic composition containing polyurethane dispersion
  • Cosmetic composition containing polyurethane dispersion

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0042] The prepolymer A1) used in the preparation of polyurethane is preferably selected from one or more polyvalent polyols selected from polyether polyols, polycarbonate polyols, polyether polycarbonate polyols and / or polyester polyols Alcohols are obtained by reacting polyisocyanates, which will be explained in more detail below.

[0043] Particularly preferred polyurethanes are obtained by using polymer polyether polyols and / or polymer polycarbonate polyols and / or polyether-polycarbonate polyols or polyester polyols, each of these polymers having Number average molecular weights of about 400 to about 6000 g / mol are preferred (here and for the molecular weight data below, the molecular weights are determined by gel permeation chromatography in tetrahydrofuran at 23° C. against polystyrene standards). Their use during the preparation of polyurethanes or polyurethane prepolymers will result in corresponding polyether and / or polycarbonate and / or polyether-polycarbonate segment...

Embodiment

[0119] Raw Materials and Reagents

[0120]

[0121]

[0122] Composition preparation method

[0123] Following each embodiment and comparative example all can be prepared by following method:

[0124] preparing an aqueous phase component A comprising a thickener, an optional solvent, an optional chelating agent, and water;

[0125] Preparation of colorant component B;

[0126] Preparation of Component C of optional emulsifier and optional emollient;

[0127] Prepare component D;

[0128] Polyurethane dispersion A) is E component;

[0129] Heat component A to 80°C while stirring in a container, and heat component C to 80°C while stirring in another container, when components A and C are dispersed evenly, add component C A component and continue to stir until uniform, add B component, continue to stir until uniform, and homogeneous. After cooling to room temperature, components D and E were added and mixed uniformly to form a cosmetic composition for experimentatio...

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Abstract

The invention relates to a cosmetic composition containing polyurethane dispersion, a preparation method and a purpose thereof. Concretely, the invention relates to a cosmetic composition containing the polyurethane dispersion used as a skin protector.

Description

technical field [0001] The invention relates to a cosmetic composition containing polyurethane dispersion and its preparation method and application. In particular, the present invention relates to a cosmetic composition comprising a polyurethane dispersion for use as a base cream. Background technique [0002] Nowadays, more and more people use base cream to make the skin easier to apply makeup, apply makeup evenly, and prevent makeup from falling off. Yet present segregation cream lasting power is not enough, does not have film-forming property, can't reach the effect that people expect to isolate color makeup and skin. [0003] At the same time, the use of barrier creams has increased the need for makeup removers and cleansing products. With the accelerated pace of life, people always try to find ways to use time efficiently. They hope that the barrier cream can enhance the adhesion of foundation or other cosmetics to the skin, thereby improving the smoothness of facial...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/87A61Q17/00A61Q1/14
Inventor 熊晓辉张璐
Owner COVESTRO DEUTSCHLAND AG
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