POWDER COMPOSED OF INORGANIC COMPOUND-LOADED POLYAMIDE POROUS PARTICLE

Disclosed is a powder of inorganic compound-loaded polymer particles which has high light scattering property while being safe for the human body. Specifically disclosed is a powder composed of inorganic compound-loaded polyamide porous particles wherein many inorganic compound fine particles are su...

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Bibliographic Details
Main Authors SHOJI, TATSUYA, KONISHI, RYO, YAO, SHIGERU, ASANO, YUKIHIKO
Format Patent
LanguageEnglish
French
Japanese
Published 21.06.2007
Subjects
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Summary:Disclosed is a powder of inorganic compound-loaded polymer particles which has high light scattering property while being safe for the human body. Specifically disclosed is a powder composed of inorganic compound-loaded polyamide porous particles wherein many inorganic compound fine particles are supported by the surfaces and pores of polyamide porous particles each of which has pores in the surface. The powder is characterized in that the average primary particle diameter of the polyamide porous particles is 1-30 µm, the average primary particle diameter of the inorganic compound fine particles is 0.01-0.5 µm, and not less than 80% of the number of the inorganic compound fine particles contains no strong acid component. La présente invention concerne une poudre de particules de polymère chargées de composés inorganiques qui possède des propriétés de diffusion de lumière élevées tout en ne présentant aucun risque pour le corps humain. L'invention porte spécifiquement sur une poudre composée de particules poreuses de polyamide chargées de composés inorganiques dans laquelle de nombreuses fines particules de composés inorganiques sont soutenues par les surfaces et les pores des particules poreuses de polyamide qui possèdent chacune des pores sur leur surface. La poudre se caractérise en ce que le diamètre moyen de particule primaire des particules poreuses de polyamide est compris entre 1 et 30 µm, le diamètre moyen de particule primaire des fines particules de composés inorganiques est compris entre 0,01 et 0,5 µm, et au moins 80 % des fines particules de composés inorganiques ne renferment pas de composant acide fort.
Bibliography:Application Number: WO2006JP324963