RESIN COMPOSITION FOR HEAT RESISTANT PLASTIC CARD

摘要

PROBLEM TO BE SOLVED: To obtain a resin composition giving plastic card excellent in heat resistance and morphological stability by including polycarbonate resin and isophthalic acid modified polyethylene terephthalate. SOLUTION: This composition includes (A) 100 pts.wt of polycarbonate resin preferably having a viscosity average molecular weight of 10,000 to 100,000 and (B) 0.5 to 40 pts.wt. of the isophthalic acid modified polyethylene terephthalate having intrinsic viscosity of 0.7 to 1.2 measured in conformity to JIS K-7233. The amount of the isophthalic acid component in the component (B) is preferably 5 to 30 mole % based on the sum of the isophthalic acid and terephthalic acid used as monomers. A heat resistant plastic card excellent in adhesivity of a protective layer comprising thermoplastic resin established at least one side of the surface of the plastic card base is obtained.