发明名称 EARPLUG
摘要 An earplug made of an elastic polymeric material, preferably a thermoplastic elastomeric material, and a method for manufacturing the same. The earplug is multi-material-injection moulded with a core or body part (1) and a sealing part (3), the latter being made of an essentially softer material than the core or body part (1). The material of the sealing part has a Shore A Durometer hardness of preferably between about 2 and about 6.
申请公布号 CA2224608(C) 申请公布日期 2006.07.11
申请号 CA19972224608 申请日期 1997.12.11
申请人 DALLOZ SAFETY AB 发明人 HAKANSSON, JORGEN
分类号 A61F11/08;A61F11/10;B29C45/16 主分类号 A61F11/08
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