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SERINGUE PRÉREMPLIE, JOINT DESTINÉ À ÊTRE UTILISÉ AVEC UNE SERINGUE PRÉ-REMPLIE, ET PROCÉDÉ DE PRODUCTION DE JOINT
专利权人:
SUMITOMO RUBBER INDUSTRIES LIMITED
发明人:
申请号:
EP15199236.9
公开号:
EP3058975A1
申请日:
2015.12.10
申请国别(地区):
EP
年份:
2016
代理人:
摘要:
When a laminated gasket product is demolded from a mold in production thereof by a conventional production process, the gasket product is rubbed against the mold and, therefore, minute scratches are formed on a surface of the gasket product. The minute scratches may impair the reliable sealability of a liquid drug. A method for producing a gasket (13) for use in a prefilled syringe (10) includes the steps of: preparing a gasket forming mold; molding a gasket (13) in the mold, the gasket having a surface laminated with a lamination film (15) and including a circumferential surface portion (17); demolding the gasket (13) from the mold, and then simultaneously forming a groove (22) and a projection (24) each extending circumferentially of the gasket in a portion of the lamination film (15) present in the circumferential surface portion (17) of the gasket.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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