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ELASTOMER COMPOSITION FOR MEDICAL CONTAINER STOPPER
专利权人:
发明人:
申请号:
EP10750742.8
公开号:
EP2407140A1
申请日:
2010.03.04
申请国别(地区):
EP
年份:
2012
代理人:
摘要:
The object of the present invention is to provide an elastomer composite useful as the material for the plug of a medical vessel having excellent heat resistance, liquid leakage resistance, and a needle holding property, and the present invention provides an elastomer composite comprisinga block copolymer A derived from a polymer block Y1 containing a butadiene monomer unit as its main constitutional unit and two styrene polymer blocks, and a block copolymer P derived from a butadiene-styrene controlled distribution copolymer block Y2 and two polystyrene blocks X2, a softening agents having kinematic viscosity in the range of between 50 and 500 cSt, at 40°C, and a propylene polymer C having a modulus in bending in the range of between 1000 and 3000 MPa.
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