发明名称 |
CONTROLLING CROSS-WEB LAYER PROFILE OF A MULTILAYER POLYMER FILM |
摘要 |
A method is disclosed that includes forming a plurality of polymer layers via a plurality of slots, wherein the plurality of layers are combined to generate a multilayer polymer flow stream; and controlling heat flow to the plurality of slots in conjunction with the formation of the plurality of polymer layers. The multilayer polymer flow stream may be used to generate a multilayer film. In some embodiments, the cross-web layer thickness profile may be controlled by controlling heat flow to the plurality of slots that form the plurality of polymer layers. |
申请公布号 |
EP2523796(A1) |
申请公布日期 |
2012.11.21 |
申请号 |
EP20110702093 |
申请日期 |
2011.01.10 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
DERKS, KRISTOPHER J.;BIEGLER, ROBERT M.;NEAVIN, TERENCE D. |
分类号 |
B29C47/58;B29C47/06;B29C47/70;B29C47/86;B29C47/92 |
主分类号 |
B29C47/58 |
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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