Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Patent
1993-04-23
1994-11-15
Nutter, Nathan M.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
536 71, 536 76, 536124, 536127, C08B 306, C08B 102, C08B 322
Patent
active
053649354
ABSTRACT:
Disclosed is a process comprising continuously flowing a composition through a hydrolysis zone so as to achieve a residence time distribution such that at least 81% of the area under the residence time distribution curve is within plus or minus 50% of the mean residence time. The composition comprises cellulose triacetate in the range of 5 to 30%, water in the range of 4 to 25%, and acetic acid in the range of 45 to 91%.
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Journal of Polymer Science, vol. X, No. 4, Mar. 1952, L. A. Hiller, "The Reaction of Cellulose Acetate With Acetic Acid & Water", p. 385, 1st paragraph; p. 389, table I; pp. 390-391.
WO, A1, 9213893 (Eastman Kodak Company), 20 Aug. 1992 (20.08.92), claims 1, 5, 6, abstract, example 3.
WO, A1, 9116358 (Eastman Kodak Company), 31 Oct. 1991 (31.10.91), p. 6, line 24-line 28; p. 7, line 11-line 25, claims 1, 6, 10.
Chem. Eng. Comm., vol. 36, pp. 251-267.
Cox Mark K.
Frederick Tim J.
Eastman Chemical Company
Martin Charles R.
Nutter Nathan M.
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