Powder composition containing oily substance
AssigneeTomita Pharmaceutical Co., Ltd.
InventorsTakanori Taniwaki, Kazuki Kamai, Yuuta Tsumura, Daichi Masaki
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Abstract
Provided is a powder composition containing an oily substance, the powder composition having good oxidation stability and excellent compression moldability. The powder composition containing an oily substance contains a powdery calcium silicate-based material, and an oily substance impregnated into the material. In the material, a cumulative pore volume for a pore size of 10 to 70 nm is 1.1 cc/g or more, and a cumulative pore volume for a pore size of 70 to 500 nm is 2.0 cc/g or less.
Claims5
A powder composition containing an oily substance, the powder composition comprising a powdery calcium silicate-based material and an oily substance impregnated into the material, wherein, the powdery calcium silicate-based material comprises porous particles having pores of a size ranging from 10 to 70 nm and pores of a size ranging from 70 to 500 nm, and wherein, in the material, a cumulative pore volume for pores of a pore size of 10 to 70 nm is 1.1 cc/g or more and a cumulative pore volume for pores of a pore size of 70 to 500 nm is 2.0 cc/g or less.
Dependencies are inferred from the claim text.