发明名称 |
Curved tubular packing casing |
摘要 |
A curved, tubular packing casing of unreinforced cellulose having non-uniform wall thickness in cross-section is disclosed. The area of minimum wall thickness lies opposite the area of maximum wall thickness and is situated in the area of the greater, outer radius of curvature. The maximum wall thickness lies in the range from about 50 to 160 mu m, and the minimum wall thickness lies in the range from about 10 to 50 mu m. The maximum wall thickness is 50 to 800% greater than the minimum wall thickness.
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申请公布号 |
US4975309(A) |
申请公布日期 |
1990.12.04 |
申请号 |
US19890339663 |
申请日期 |
1989.04.18 |
申请人 |
HOECHST AKTIENGESELLSCHAFT |
发明人 |
GORD, HERBERT;PHO TU, HOANG;SIEBRECHT, MANFRED;BECKER, REINHOLD |
分类号 |
B65D75/06;A22C13/00;B29C47/00 |
主分类号 |
B65D75/06 |
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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