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METHOD FOR PREPARING CELLULOSE ACETATE SOLUTION, METHOD FOR MANUFACTURING CELLULOSE ACETATE FILM, AND CELLULOSE ACETATE FILM
METHOD FOR PREPARING CELLULOSE ACETATE SOLUTION, METHOD FOR MANUFACTURING CELLULOSE ACETATE FILM, AND CELLULOSE ACETATE FILM
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机译:醋酸纤维素溶液的制备方法,醋酸纤维素膜的制造方法以及醋酸纤维素膜
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摘要
PROBLEM TO BE SOLVED: To provide a cellulose acetate solution which is capable of manufacturing such a cellulose acetate film having excellent optical properties and physical properties not realized by conventional manufacturing methods.;SOLUTION: The cellulose acetate solution is obtained in such a manner that a mixture of a cellulose acetate having an average degree of acetylation of 58.0-62.5% and an organic solvent containing a 1-6C halohydrocarbon is cooled down to -100 to -10°C and the cooled mixture is warmed up to 0 to 120°C to dissolve the cellulose acetate into the organic solvent.;COPYRIGHT: (C)2004,JPO
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