Silicone

Features

Even though the first commercial application for silicone came during World War as a military uses. Nowadays silicone fluids and certain silicones are one of the most important materials with wide range of applications. Silicones are very familiar to human beings, for examples, breast augmentation(breast implants with silicone-gel filled), cosmetic surgery, cosmetic powders and etc..
Based on Si-O-Si linkage, silicone polymers have the interness and ultraviolet resistance properties and also have the moisture resistance & transparent properties. Therefore silicone fluids, especially linear polysiloxanes primarily composed of methyl groups and silicone, are employed as coating materials in cosmetic powders. Silicone coated powders exhibit many desirable properties in that they do not harmful to the skin, and also have excellent dispersion characteristic to mix with other materials in cosmetic make-up compositions. However, common silicone fluids used for cosmetic powder coating also have a few active hydrogen on the location of methyl groups in their chemical structure. According to the activity active hydrogen in cosmetic compositions, their applications to the cosmetic compositions are restricted.
To overcome above the restrictions, BO-KWANG developed a new silicone fluids which have the zero hydrogen potential to exclude their activity in cosmetic compositions. Due to the zero hydrogen potential in our specially designed silicone coated powders on the surface of Sericite, Mica, Talc, Silica, ZnO, TiO2, Boron nitride, Bismuth oxychloride and others, they entirely do not show any of the harmful effects from active hydrogen in cosmetic compositions but show many desirable properties of silicone coatings such as very hydrophobic, transparent properties and also show above the described properties. We really would like to recommend our customers to apply above the powders for a functional fillers in cosmetic compositions.

DIMETHICONE(Dimethylpolysiloxane) COATED POWDERS

Surface Treatment Process

Properties

• Very hydrophobic
  
• Transparent properties
  
• Do not harmful to the skin
  
• Resistant to acid, alkalis, weather protect skin in pollution

METHICONE(Methylhydrogenpolysiloxane) COATED POWDERS

Properties

• Excellent affinity properties with human skin
  
• Very hydrophobic
  
• Excellent dispersibility to mix with other materials in cosmetic make-up composition
  
• Transparent properties
  
• Do not harmful to the skin
  
• Resistant to acid, alkalis, weather protect skin in pollution
  
• Make-up maintenance
  
• Easy to develop natural finish to Make-up products

Surface Treatment Process

Silane Compound Coated Powders

Properties

• Maximum water repellence(Very hydrophobic)
  
• Non-strippable by cyclomethicone
  
• Lowers oil absorption
  
• Zero hydrogen potential, no Si-H bond
  
• Exellent coupling with metal oxide pigments

Surface Treatment Process