PURPOSE: The tilted composition having improved flexibility and improved properties free from plasticizer migration, obtained by blending a cellulose with a phthalic polyester as a plasticizer.
CONSTITUTION: (A) 100pts.wt. cellulose derivative, preferably cellulose acetate propionate, cellulose acetate butylate, especially preferably cellulose acetate is blended with (B) 5W75pts.wt., preferably 10W45pts.wt. phthalic acid polyester having 250W3,000, preferably 700W1,000 average molecular weight obtained by subjecting a phthalic acid (preferably isophthalic acid or phthalic anhydride) and a bihydric alcohol (preferably 1,2-propylene glycol or 1,3-butandiol) to dehydrating esterification reaction in the presence of a catalyst (e.g., tetrabutyl titanate, etc.) under heating in a mixed state, or a compound obtained by treating the end group of the phthalic acid polyester by acetylation, etc.
HAGIMOTO TAKUMI
TANAKA MASAYA
SHIMODA MINORU
MIZUTA OSAMU
DAICEL CHEM
| JP43016305A | ||||
| JPS51111285A | 1976-10-01 | |||
| JPS5188541A | 1976-08-03 |
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