发明名称 METHOD FOR PRODUCING RUBBER STOPPER FOR PHARMACEUTICALS
摘要 <p><P>PROBLEM TO BE SOLVED: To provide a rubber stopper for pharmaceuticals wherein the flow of a vulcanized rubber is not hindered in secondary molding, and quality and dimensional precision are uniform. <P>SOLUTION: A primary molded article is put in a leg part second mold 30 having a second recess 31 of which the shape is fitted to the shape of a leg part and the outside depth L of the second recess 31 is equal to or below the outside depth L of a first recess 21 formed to a leg part first mold 20, and an unvulcanized compounded rubber plate is laid on the upper surface of the primary molded article. It is vulcanized in a second top panel mold 32 having a recess 33 of which the shape is fitted to that of a top panel part, and the footing of the leg part of the primary molded article and the top panel part are integrated. <P>COPYRIGHT: (C)2004,JPO&NCIPI</p>
申请公布号 JP2004216753(A) 申请公布日期 2004.08.05
申请号 JP20030008125 申请日期 2003.01.16
申请人 SUMITOMO RUBBER IND LTD 发明人 MAEDA KATSUSHI;FUJIWARA SHOJI
分类号 B29C35/02;B29C65/70;B29K21/00;B29K27/12;B29K105/24;B29L9/00;B29L21/00;B29L31/56;(IPC1-7):B29C35/02 主分类号 B29C35/02
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