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METHOD FOR PRODUCING SYRINGE GASKET, AND SYRINGE INCLUDING THE GASKET
专利权人:
LTD.;SUMITOMO RUBBER INDUSTRIES
发明人:
Yuki SAKASHITA
申请号:
US15970500
公开号:
US20180344939A1
申请日:
2018.05.03
申请国别(地区):
US
年份:
2018
代理人:
摘要:
The present invention provides a method for producing a syringe gasket which is improved in liquid drug sealability by forming a minute projection on a circumferential surface of the gasket after demolding the gasket. In a method for producing a syringe gasket including a cylindrical main body (2) made of an elastic material and an inert resin film (3) laminated on a surface of the main body (2), at least one minute projection (5) is formed as extending circumferentially of the gasket on a surface of the inert resin film (3) laminated on the main body (2) by thermal processing using a laser beam.
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