发明名称 |
Writing ink accommodating tube |
摘要 |
In order to provide an ink reservoir for a writing instrument which has satisfactory permeation resistance and moisture-absorption resistance against permeation of a solvent and absorption of moisture and which is excellent in a storing property of the ink with the passage of time, an ink reservoir for a writing instrument in which an ink for a writing instrument is stored is constituted of at least one selected from the group consisting of a cyclic olefin resin, a fluorine base resin and a high molecular weight olefin resin or the ink reservoir for a writing instrument described above is constituted of a laminated structure which is formed by extrusion molding of two or more kinds of thermoplastic resins.
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申请公布号 |
US2005169694(A1) |
申请公布日期 |
2005.08.04 |
申请号 |
US20040513039 |
申请日期 |
2004.11.01 |
申请人 |
MITSUBISHI PENCIL CO., LTD. |
发明人 |
ICHIKAWA SHUJI;FURUKAWA KAZUHIKO;KOBAYASHI TAKESHI |
分类号 |
B43K7/02;B43K7/08;C09D11/16;C09D11/18;(IPC1-7):B43K5/02 |
主分类号 |
B43K7/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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