Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Patent
1979-03-26
1980-10-14
Griffin, Ronald W.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
536 69, 536 82, C08B 306, C08B 322
Patent
active
042282764
ABSTRACT:
Improved method for preparing cellulose acetate powder, particularly extrusion-grade powder, by direct precipitation, with the precipitation step occurring at a temperature of about 65.degree. C. to about 95.degree. C. and with the coagulating agent subsequently being removed from the resulting liquid powder slurry also at a temperature of about 65.degree. C. to about 95.degree. C.; and the cellulose acetate powder product resulting from the improved method, the powder being particularly adapted to take up plasticizer up to about 50 percent by weight and still flow uniformly without caking or becoming tacky.
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Bogan Richard T.
Kuo Chung-Ming
Dunn Malcolm G.
Eastman Kodak Company
Griffin Ronald W.
Reece III Daniel B.
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