| 摘要 |
PURPOSE:To prevent the deterioration of the strength after the gamma-ray radiation by forming a housing case in which a body liquid processing material is sealed, from a composition which consists of the aromatic polycarbonate, copolyester and special stabilizers. CONSTITUTION:A housing case in which a body liquid processing material is sealed is made through the injection molding or blow molding by using the composition which is made by compounding the aromatic polycarbonate A, compolyester B having the constitution unit 1 or 1 and 2, and pentaerythritol diphosphite group stabilizers represented by the general formula 3 and has the compounding ratio R which is represented by the following formula 4 between the aromatic polycarbonate A and the copolyester B and is set in a range 0.3<=R<=0.6. When R is less than 0.3, if the gamma-ray exposure is large, or a long period lapses up to the use after the manufacture of a body liquid treating device, the color change such as yellow change occurs, while if R is larger than 0.6, the deterioration of molding performance and the reduction of strength are generated. |
