Patent ID: 8268928

Claim:
A thermoplastic polymer composition, comprising: an acrylic block copolymer (A; and an acrylic resin (B), wherein (i) the acrylic block copolymer (A) comprises, in its molecule, at least one structure where polymer blocks (a2), mainly comprising, in polymerized form, a methacrylic ester unit, are bonded to both ends of a polymer block (a1) mainly comprising, in polymerized form, an acrylic ester unit, (ii) the acrylic block copolymer (A) has a weight-average molecular weight of 10,000 to 100,000, (iii) the acrylic block copolymer (A) comprises: an acrylic block copolymer (A1) comprising a polymer block (a2) content of 40% by mass or more and 80% by mass or less; and an acrylic block copolymer (A2) comprising a polymer block (a2) content of 10% by mass or more and less than 40% by mass, (iv) the acrylic resin (B) mainly comprises, in polymerized form, a methacrylic ester unit, and (v) a mass ratio of the acrylic block copolymer (A) to the acrylic resin (B), [(A)/(B)], is in a range of 97/3 to 10/90.