| 摘要 |
PURPOSE:To obtain the titled molding by which blood can be preserved for a long time without lowering the functions of its components, by forming a specified crosslinked layer on at least part of the surface of a flexible vinyl chloride resin molding having a plasticizer. CONSTITUTION:A flexible vinyl chloride resin molding formed by mixing 100pts. wt. vinyl chloride resin with 30-110pts.wt. plasticizer [e.g., di(2-ethylhexyl) phthalate] and, optionally, a stabilizer (e.g., Ca-Zn stabilizer), a lubricant (e.g., low-MW PE), etc., and molding the resulting mixture into a sheet, tube or the like is plasma-treated to form a crosslinked layer which shows the following results of ESCA analysis: ratios between the numbers of atoms (C, O, Cl and N), 0.10<=O/C<=0.27, 0.005<=Cl/C<=0.03 and N/C<=0.01 and a ratio of C to neutral carbon (CH), 0.70<=CH/C<=0.90 and has a plasticizer bleeding <=500mg/cm<2> and a thickness of 1,000Angstrom -1.5mum. |
