| 摘要 |
PROBLEM TO BE SOLVED: To make obtainable a cellulose acetate-based resin composition uniformly plasticized hardly containing foreign matters even if a plasticizer having a high molecular weight which causes lowering of the compatibility is used, and further to make obtainable its molding. SOLUTION: This cellulose acetate-based resin composition obtained by heating, melting and mixing 100 pts.wt. cellulose acetate having 100,000-250,000 weight average molecular weight, and 1.0-2.5 average substitution degree, contains <=10 regions having <=200 deg.C glass transition temperature and <=0.1μm diameter per 1 g.
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