Porous spherical cellulose acetate particles

C - Chemistry – Metallurgy – 08 – B

Patent

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260/216.2

C08B 3/22 (2006.01) C08J 3/14 (2006.01) C08J 9/28 (2006.01)

Patent

CA 1235119

Abstract of the Disclosure Cellulose acetate is formed into porous, spherical particles, having an acetylation degree of 49 to 60 %, a particle diameter of 0.05 to 10 mm, a sphericity of 0.7 or larger, a pore volume of 0.4 cc/g or larger and a collapsing strength of 9 kg or higher.

472623

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