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Pigment mixtures

A technology for mixtures and pigments, which is applied in the preparation of pigments, the treatment of dyed low-molecular-weight organic compounds, and fibrous fillers.

Inactive Publication Date: 2010-11-24
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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] Example 1 : Treatment of natural mica

[0075] At 65°C, wet-milled natural muscovite with a quantity of 200 g and a particle size of 2-19 μm was suspended in deionized water by stirring at a ratio of about 10%. Put in and dissolve 4.0 g sodium stearate (Brenntag) enough to form 2% magnesium stearate. 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 salt by sedimentation and / or filtration, and then the wet mixture is dried and the product is ready for mixing.

[0076] The processed natural mica exhibits a good skin feel.

Embodiment 2

[0077] Example 2 : Treatment of synthetic mica

[0078] Repeat the method used in Example 1, but replace natural mica with synthetic mica with a particle size of 5-25 μm.

[0079] The treated synthetic mica exhibits a good skin feel.

Embodiment 3

[0080] Example 3 :Mixture of 49% synthetic mica / 50% BiOCl / 1% magnesium stearate

[0081] The mica treated according to Example 2 was mixed with cosmetic grade BiOCl at 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

Invention field [0001] The present invention relates to a pigment mixture composed of at least two components, wherein component A contains bismuth oxychloride (BiOCl) or boron nitride (BN), and component B contains synthetic flakes treated with at least one metal soap or At least one metal soap-treated mineral flake, and its application particularly in cosmetic preparations. Background technique [0002] The performance characteristics of bismuth oxychloride are fair. BiOCl powder bearing pearlescent pigments are disclosed in German Patent Nos. 10 03 377, US 2,975,053, DE24 11 966, EP0 496 686B1 and DE43 05 280A1, for example. Bismuth oxychloride has highly desirable inherent properties by virtue of the granular flake structure (which is an irregular fragment-like extension of the layered crystal structure), such as very soft and smooth skin feel similar to liquid lubricity, hydrophobicity (water repellency) And / or lipophilicity (affinity to oil), high adhesion to the skin, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/00C09C1/28C09C1/42C09C1/40C09C3/08C09C3/04A61K8/92A61K8/20A61K8/19A61K8/26A61K8/25A61K8/96A61Q1/02A61Q1/10A61Q1/08A61Q1/12
CPCA61Q1/02A61K2800/872A61K2800/43A61K2800/59A61K8/19A61K8/37A61Q1/10A61Q1/04A61K2800/412A61K8/0254A61K8/25A61K8/26C09C1/0015C09C3/08C09C2200/102C09C2220/103C01P2006/60A61K2800/10A61K2800/436A61K8/361A61Q1/12A61K8/0241A61K2800/612A61K2800/651
Inventor M·特勒夫森彭庆芸
Owner MERCK PATENT GMBH
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