| abstract |
A tube having good transparency, flexibility, solvent adhesiveness, excellent clamping resistance, antiglare property, and corrosion resistance, and a medical article using the tube. The present invention relates to a tube comprising a styrene-based thermoplastic elastomer (a) and a polypropylene-based resin (b) and molding a resin composition containing no softening agent, wherein the elastomer (a) is a polymer block comprising an aromatic vinyl compound A) and a polymer block (B) comprising isoprene and / or 1,3-butadiene are hydrogenated, wherein the content of the polymer block (A) is 5 to 40% by mass, Wherein the hydrogenation ratio of the polymer block (B) is 70% or more, the content of 1,2-bond and 3,4-bond in the polymer block (B) is 30 to 85 mol% (A) / (b)] of the styrene-based thermoplastic elastomer (a) is in the range of 90/10 to 40/60 and the diffraction peak intensity [I (15)] of 15 ° in the X- The diffraction peak intensity [I (14) The ratio [I (14) / I (15)] is a medical device formed using the 1.4 or more tubes, and a tube. |