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    • 7. 发明专利
    • Medical rubber products
    • JP5279994B2
    • 2013-09-04
    • JP2006206852
    • 2006-07-28
    • 株式会社大協精工
    • 康 河内盛皓 須藤
    • A61J1/05A61M5/28C08L23/22C08L75/04
    • PROBLEM TO BE SOLVED: To provide rubber goods for medical purpose which can hermetically seal a high permeability liquid and have low early sliding resistance, sliding resistance with the passage of time, and striking stopper resistance, and a high gas barrier nature. SOLUTION: The rubber goods for hermetically sealing the high permeability liquid contains 10-80 pts.wt. of a fluororesin fine powder of a mean particle size of 1-5 μm in relation to the 100 pts.wt. of a butyl rubber or an urethane rubber. The butyl rubber is preferably a butyl rubber halide. Further, they may contain 5-70 pts.wt. of an ultra high molecular weight polyethylene fine powder of a mean particle size of 10-30 μm in relation to the 100 pts.wt. of a rubber component. The high permeability liquid is a liquid of which the surface tension is 45 or less mN/m, preferably 35 or less mN/m. The rubber goods have a shore A hardness of 45-75 at 25°C, a steam transmission of below 1 g/m 2 day atm, and an early sliding resistance of less than 7.0 and a fluororesin film formed by the casting method may be laminated on the surface of them. COPYRIGHT: (C)2007,JPO&INPIT