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Pigment mixtures

A kind of mixture and pigment technology, applied in the direction of pigment preparation, dyeing low molecular organic compound treatment, fibrous filler, etc., can solve the problem of lack of close mixing and limited metal soap, and achieve the effect of easy operation, simple and operation

Inactive Publication Date: 2016-06-22
MERCK PATENT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Likewise, the skin feel improvement benefit conferred by blended magnesium stearate is limited due to the lack of intimate mixing of the metal soap due to the relatively large particle size of the powder

Method used

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  • Pigment mixtures
  • Pigment mixtures
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] Example 1 : Processing of natural mica

[0076] At 65° C., an amount of 200 g of wet-ground natural muscovite with a particle size of 2-19 μm was suspended in deionized water at a ratio of about 10% by stirring. 4.0 g of sodium stearate (Brenntag) sufficient to form 2% magnesium stearate was added and dissolved. Then, 1.3 g of magnesium chloride (hexahydrate) was added. The suspension of precipitated magnesium stearate can be elutriated with deionized water to remove sodium chloride salts by settling and / or filtering, and then the wet mixture is dried and the product is ready for blending.

[0077] The treated natural mica exhibited a very good skin feel.

Embodiment 2

[0078] Example 2 : Processing of synthetic mica

[0079] The method used in Example 1 was repeated, but replacing the natural mica with synthetic mica having a particle size of 5-25 μm.

[0080] The treated synthetic mica exhibited very good skin feel.

Embodiment 3

[0081] Example 3 : Blend of 49% synthetic mica / 50% BiOCl / 1% magnesium stearate

[0082] Mica treated according to Example 2 was mixed with cosmetic grade BiOCl in the same weight in a laboratory mixer (Waring or Oster).

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Abstract

Disclosed are pigment mixtures containing at least two components, where component A contains bismuth oxychloride (BiOCl) or boron nitride (BN) and component B contains synthetic flakes treated with at least one metal soap or mineral flakes treated with at least one metal soap and to the use thereof especially in cosmetic formulations.

Description

[0001] This application is a divisional application of the patent application with application number 201010239651.8 and titled "Pigment Mixture" filed on May 14, 2010 (this patent application claims US priority with priority number 61 / 178,762). field of invention [0002] The invention relates to a pigment mixture consisting of at least two components, wherein component A comprises bismuth oxychloride (BiOCl) or boron nitride (BN), and component B comprises synthetic flakes treated with at least one metal soap or treated with Mineral flakes treated with at least one metal soap and related to their use especially in cosmetic preparations. Background technique [0003] The performance characteristics of bismuth oxychloride are well known. BiOCl powders and pearlescent pigments are disclosed, for example, in German patent 1003377, US2,975,053, DE2411966, EP0496686B1 and DE4305280A1. Bismuth oxychloride has highly desirable inherent properties such as very soft and smooth skin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/40C09C3/08A61K8/19A61K8/26A61K8/25
CPCA61K8/0254A61K8/19A61K8/25A61K8/26C09C1/0015C09C3/08C09C2200/102C09C2220/103C01P2006/60A61K2800/10A61K2800/436A61K2800/412A61K2800/43A61K2800/59A61K2800/872A61Q1/02A61Q1/04A61Q1/10A61K8/361A61Q1/12A61K8/0241A61K2800/612A61K2800/651
Inventor M·特勒夫森彭庆芸
Owner MERCK PATENT GMBH