PURPOSE: To provide the subject composition comprising a saturated polyester and a specific hydroxyl group-modified aromatic vinyl compound random copolymer and improved in the balance among physical properties such as heat resistance, impact resistance, tensile strength, water absorption and moldability.
CONSTITUTION: The objective composition comprising (A) a saturated polyester (preferably polyethylene terephthalate) and (B) a hydroxyl group-modified aromatic vinyl compound random copolymer [preferably p-(2-hydroxyethyl)styrene- styrene-acrylonitrile copolymer] comprising (i) 50-99.9wt.% of the units of an aromatic vinyl compound, (ii) 0.1-20wt.% of the units of a hydroxyl group- containing aromatic vinyl compound of the formula (R' us H, methyl; R2 is 1-6C hydrocarbon; R3 is direct bond, 1-20C hydrocarbon; k, n are 1-5; m is 0-4), and (iii) 0-40wt.% of the units of a vinylic compound capable of being copolymerized with the components i-iii.
TOMITA MASAYUKI
IKEHATA FUMIYO
NAKANO HIROSHI
