发明授权
- 专利标题: Cross directional zoned bicomponent films, film laminates, and systems and methods for manufacture of the same
- 专利标题(中): 横向分区双组分薄膜,薄膜层压板及其制造方法
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申请号: US11830475申请日: 2007-07-30
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公开(公告)号: US08460588B2公开(公告)日: 2013-06-11
- 发明人: Matthew B. Lake , Bryon Paul Day
- 申请人: Matthew B. Lake , Bryon Paul Day
- 申请人地址: US WI Neenah
- 专利权人: Kimberly-Clark Worldwide, Inc.
- 当前专利权人: Kimberly-Clark Worldwide, Inc.
- 当前专利权人地址: US WI Neenah
- 代理机构: Armstrong Teasdale LLP
- 主分类号: B32B27/00
- IPC分类号: B32B27/00 ; B29C47/06
摘要:
Coextruded films provide cross directional zoned multiple components side-by-side to one another. Systems and methods relate to coextruding such films. During coextrusion, a first polymer conjoins with a second polymer while a temperature differential is maintained between the first and second polymers. This temperature differential is selected to reduce a difference between the viscosities of the first and second polymers making the viscosity of the first polymer close enough to the viscosity of the second polymer to avoid separation upon coextrusion. Further, the films may form a layer in subsequent lamination to other material layers.
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