Cellulose acetate powder and method of producing cellulose acetate powder
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United States of America Patent
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Dec 29, 2020
Grant Date -
Feb 8, 2018
app pub date -
Feb 26, 2015
filing date -
Feb 26, 2015
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Abstract
Provided is a cellulose acetate powder that makes it possible to reduce the formation of spotty patches on a formed article of the cellulose acetate and prevent lowering of the production process passability of the formed article. A cellulose acetate powder includes cellulose acetate having an acetylation degree of 53 to 56% and a 6% viscosity of 30 to 200 mPa·s. In the cellulose acetate powder, a cumulative pore volume is not less than 0.200 ml/g; a proportion of particles having a particle diameter of not less than 500 μm is not higher than 40%; and an angle of repose is not greater than 51°.
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