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    • 3. 发明授权
    • Modified powder, fluid composition containing said modified powder, formed article, and method for producing modified powder
    • 改性粉末,含有所述改性粉末的成型制品和制备改性粉末的方法的流体组合物
    • US07888430B2
    • 2011-02-15
    • US11573515
    • 2005-08-03
    • Shigeru Oyama
    • Shigeru Oyama
    • C08F16/06A61K38/17
    • C08L5/08C08J3/12C08J3/122C08J2305/08C08J2389/00C08J2401/02C08L1/02C08L5/00C08L27/06C08L89/00C08L2666/26
    • The modifying powder is silk powder having an average particle diameter of 10 μm or less, oil absorption of 130 ml/100 g or less and particle diameter of 80 μm or less on the basis of dispersion degree evaluation with a grind gauge according to JIS K5400; or polysaccharide powder having an average particle diameter of 10 μm or less, and ink viscosity of less than 15 Pa·s or oil absorption of 85 ml/100 g or less. Such modifying powders can be obtained through a method comprising a first pulverization process for pulverizing a starting material for modifying material using a dry-type mechanical pulverizer such as a ball mill, and a second pulverization process for pulverizing the obtained pulverized product with a jet mill to fine particles having an average particle diameter of 10 μm or less, wherein pulverization treatment time in the first pulverization process is determined to be 40 hours or more.
    • 改性粉末是根据JIS K5400的研磨量的分散度评价,平均粒径为10μm以下,吸油量为130ml / 100g以下,粒径为80μm以下的蚕丝粉末 ; 或平均粒径为10μm以下,油墨粘度小于15Pa·s或吸油量为85ml / 100g以下的多糖粉末。 这种改性粉末可以通过包括用于使用诸如球磨机的干式机械粉碎机粉碎用于改性材料的原料的第一粉碎方法和用所述粉碎机粉碎所获得的粉碎产物的第二粉碎方法的方法获得 涉及平均粒径为10μm以下的细小颗粒,其中第一次粉碎处理中的粉碎处理时间确定为40小时以上。