发明授权
- 专利标题: Multilayered film
- 专利标题(中): 多层电影
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申请号: US09908920申请日: 2001-07-18
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公开(公告)号: US06919113B2公开(公告)日: 2005-07-19
- 发明人: Matthew A. Therrian , Dana M. Boyd , Bernard S. Mientus
- 申请人: Matthew A. Therrian , Dana M. Boyd , Bernard S. Mientus
- 申请人地址: US CA Pasadena
- 专利权人: Avery Dennison Corporation
- 当前专利权人: Avery Dennison Corporation
- 当前专利权人地址: US CA Pasadena
- 代理机构: Renner, Otto, Boisselle & Sklar, LLP
- 主分类号: B29C55/02
- IPC分类号: B29C55/02 ; B32B27/08 ; B29D22/00
摘要:
This invention relates to a multilayered film for use as in-mold label, comprising: a core layer having a first surface and a second surface, the core layer being comprised of a polymeric mixture and particulate solids dispersed in the polymeric mixture; and an ink-printable layer overlying the first surface of the core layer; the film being formed by co-extruding the core layer and ink-printable layer to form the multilayered film, hot-stretching the film at a temperature above the expected service temperature of the label to provide the film with a machine direction orientation, the density of the film being reduced by about 10% to about 25% during hot-stretching, and annealing the film at a temperature above the expected service temperature of the label; the film having a machine direction Gurley stiffness value in the range of about 30 to about 120, a machine direction shrinkage of less than about 3%, and a machine direction shrink tension at 200° F. (93.3° C.) of less than about 100 psi.
公开/授权文献
- US20030026958A1 Multilayered film 公开/授权日:2003-02-06
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