医療容器栓体用複合エラストマー組成物

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专利权人:

アロン化成株式会社

发明人:

伊達 憲昭

申请号：

JP2009077966

公开号：

JP5346642B2

申请日:

2009.03.27

申请国别(地区):

JP

年份:

2013

代理人:

摘要：

To provide a composition providing a molding excelling in HEAT resistance and liquid leakage resistance and needle holding property.

SOLUTION: An elastomer composition for a medical container plug body contains 100 pts.wt of a block polymer W which is a hydrogenated product of a block copolymer Z having two or more polymer blocks X containing styrene units as main constituent units and one or more polymer blocks Y containing butadiene units as main constituent units and having weight average molecular weight of 160,000-400,000 and a styrene unit content ratio of 20-70 wt.%, 100-300 pts.wt of a softener B whose kinematic viscosity at 40° C is 50-500 cSt, 1-50 pts.wt of a propylene polymer whose flexural modulus is 1,000-3,000 MPa and 5-80 pts.wt of a crosslinked product R of an isobutylene polymer Q having a reactive group.

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