TITANIUM OXIDE FOR BLENDING WITH THERMOPLASTIC RESIN COMPOSITION, THERMOPLASTIC RESIN COMPOSITION, AND ITS MOLDED BODY

摘要

PROBLEM TO BE SOLVED: To provide a thermoplastic resin composition excellent in reflectivity and residence time-related heat stability.

SOLUTION: (A) The thermoplastic resin composition comprises 40-98 mass% of a thermoplastic resin, (B) 60-2 mass% of a titanium oxide particle whose surface is covered with a hydrous oxide and/or an oxide of at least one kind of metal selected from the group consisting of aluminum, silicon, zirconium, tin, cerium, titanium and zinc. The titanium oxide particle contains a titanium component in an amount of not less than 80 mass% and less than 97 mass%. The total amount of elution of alkali metal cations and alkaline earth metal cations into deionized water is not more than 120 mass ppm.

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