发明名称 |
Method for severing and sealing thermoplastic materials |
摘要 |
A process and apparatus for severing and simultaneously sealing a plurality of plies of thermoplastic material to form bags for storing foods therein is provided. A severing and sealing element fabricated from a long range ordered alloy is used. The use of that alloy provides increased element life at higher operating temperatures while significantly reducing odor and off-flavor problems in the bags.
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申请公布号 |
US4913761(A) |
申请公布日期 |
1990.04.03 |
申请号 |
US19880275459 |
申请日期 |
1988.11.23 |
申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
RUSSELL, PATRICK M.;PIHLAJA, ROGER K.;WOODS, TIMOTHY R. |
分类号 |
B26D1/00;B26D3/12;B26F3/08;B26F3/12;B29C65/22;B29C65/74 |
主分类号 |
B26D1/00 |
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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