| http://www.w3.org/ns/prov#value | - The treatment is carried out by mixing and contacting the surface-treating agent and the powder to be used in the present invention for a given time period with use of a stirring device, a milling device, a mixer or a dispersing device such as a henschel mixer, a ball mill, a jet mill, a kneader, a planetary mixer, a pony mixer, a sand mill, an attritor, a ribbon blender, a dispermixer, a homo mix
|
