| 摘要 |
PROBLEM TO BE SOLVED: To provide a medical molded product capable of adjusting the rigidity, softness, and gas permeability in a wide range without using a plasticizer, excellent in transparency, heat resistance, sterilizing resistance, and medical safety, and also excellent in waste disposal. SOLUTION: This meical molded product is made of a resin including the hydride of ternary block copolymer consisting of poly-ring conjugate diene block/poly-chain conjugate dien block/poly-ring conjugate diene block, and has the following physical properties. (1) The test liqid obtained by sterilizing the molded product under a high pressure for 60 minutes at 121 deg.C is as follows. (a) The difference in the pH value between the blank test liquid and itself is 1.5 or less. (b) The mass of potassium permanganite reductive material in the liquid, as converted into the amount of potassium permanganite aqueous solution of 0.002 mol/L, is 1.0 ml or less as compared with that of the blank test. (c) In the ultraviolet rays absorptive spectrum, the absorptivity in 220 to 241 nm is 0.08 or less, and that in 241 to 359 nm is 0.05 or less. (2)The tensile elastic modulus after treatment for 30 minutes at 121 deg.C in an autoclave is 1,000 MPa or less. |
