| 摘要 |
PROBLEM TO BE SOLVED: To improve the tenacity of this molded article by using a thermoplastic polymer composition, which is obtained by adding the specific ratio of the specified addition polymerization block copolymer during the manufacturing reaction of polyester resin. SOLUTION: An addition polymerization block copolymer is at least one kind of block copolymer selected from the group comprising a block copolymer B1 and a block copolymer B2. The block copolymer B1 is the block copolymer having at least one kind of polymer block selected from the group consisting of a polymer block mainly made of aromatic vinyl compound unit and a polybutadiene block having below 30% of hydrogenated 1,2-linkage amount, a polybutadiene block having 30-80% of hydrogenated 1,2-linkage amount and a hydrogenated isoprene/butadiene copolymer block. The block copolymer B2 is a block copolymer having a polymer block mainly made of aromatic vinyl compound unit and a polyisobutyl block. |
