Medical resin composition, resin pellets and medical parts

    公开(公告)号:JP5374154B2

    公开(公告)日:2013-12-25

    申请号:JP2008534288

    申请日:2007-08-30

    IPC分类号: C08L27/06 A61L31/00 C08K5/54

    CPC分类号: C08K5/5419 C08L27/06 C08L9/00

    摘要: The present invention provides a resin composition for medical use, resin pellets, and a part for medical use obtained by molding this resin composition, having excellent radiation resistance in which discoloration significantly is reduced even during sterilization treatment using irradiation with radioactive rays, in particular, gamma-rays. The present invention provides a resin composition for medical use comprising 0.1 to 15 parts by weight of a silane compound as a radiation resistant agent with respect to 100 parts by weight of a thermoplastic resin. The thermoplastic resin is preferably a polyvinyl chloride-based resin, and the silane compound is preferably at least one alkoxysilane compound selected from a monoalkoxysilane compound, a dialkoxysilane compound, a trialkoxysilane compound, and a tetraalkoxysilane compound. The resin composition may be a hard composition having a Rockwell hardness as defined in JIS K7202 of 35° or more, or may be a soft composition having a durometer A hardness as defined in JIS K6253 of 97° or less.

    Hard medical vinyl chloride resin composition and hard medical component using the same

    公开(公告)号:JP5291294B2

    公开(公告)日:2013-09-18

    申请号:JP2007035201

    申请日:2007-02-15

    摘要: PROBLEM TO BE SOLVED: To provide a hard vinyl chloride-based resin composition for medical use excellent in sterilization treatment by radioactive ray irradiation, especially, with remarkably reduced in the discoloration even when treated by γ-ray irradiation, and excellent in radioactive ray resistance, hardness and elutability, and hard parts for medical use produced by molding the same. SOLUTION: The hard vinyl chloride-based resin composition for medical use comprises 100 pts.wt. of a vinyl chloride-based resin and 1-15 pts.wt. of one or more plasticizers selected from cyclohexane dicarboxylate-based plasticizers and alkylsulfonic acid-based plasticizers, and has ≥35° Rockwell hardness defined by JIS K7202. The hard medical parts are molded articles prepared by molding the resin composition. COPYRIGHT: (C)2008,JPO&INPIT

    医療用樹脂組成物、樹脂ペレット及び医療用部品

    公开(公告)号:JPWO2008032583A1

    公开(公告)日:2010-01-21

    申请号:JP2008534288

    申请日:2007-08-30

    IPC分类号: C08L101/00 A61L31/00 C08K5/54

    CPC分类号: C08K5/5419 C08L27/06 C08L9/00

    摘要: 本発明は、放射線照射滅菌処理、特にγ線照射滅菌しても変色を著しく低減し、耐放射線性に優れた医療用樹脂組成物、樹脂ペレット及びこれを成形した医療用部品を提供する。熱可塑性樹脂100重量部に対して、耐放射線剤としてシラン化合物を0.1〜15重量部含む医療用樹脂組成物である。前記熱可塑性樹脂は、ポリ塩化ビニル系樹脂が好ましく、前記シラン化合物は、モノアルコキシシラン化合物、ジアルコキシシラン化合物、トリアルコキシシラン化合物、及びテトラアルコキシシラン化合物から選ばれる少なくとも一つのアルコキシシラン化合物が好ましい。前記樹脂組成物は、JIS K7202で規定されるロックウェル硬さが、35°以上の硬質でもよいし、JIS K6253で規定されるデュロメーターA硬さが97°以下の軟質でもよい。