发明名称 |
Method of Eliminating Defects While Extrusion Coating Film Using Speed Control of the Nip Roll |
摘要 |
It has now been determined that an internal optical defect can be eliminated by controlling the relative speed mismatch between the resilient roll and the casting roll in a film extrusion coating process. In particular, slowing down the surface speed of the resilient roll relative to the casting roll when coating a biaxially orientated film was found to remove the optical defect. Conversely, speeding up the surface speed of the resilient roll relative to the casting roll when coating a uniaxially orientated film was found to remove the optical defect. |
申请公布号 |
US2013059080(A1) |
申请公布日期 |
2013.03.07 |
申请号 |
US201013695339 |
申请日期 |
2010.05.27 |
申请人 |
BAY RANDY S.;PETT TODD G.;HANSEN BRENT R.;3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
BAY RANDY S.;PETT TODD G.;HANSEN BRENT R. |
分类号 |
B05D1/28 |
主分类号 |
B05D1/28 |
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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