发明授权
- 专利标题: Thermoformable multilayer polymeric film
- 专利标题(中): 可热成型多层聚合物膜
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申请号: US602256申请日: 1996-02-15
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公开(公告)号: US6068933A公开(公告)日: 2000-05-30
- 发明人: Mary E. Shepard , Robert J. Blemberg , Scott W. Middleton , Jerry F. Jesse
- 申请人: Mary E. Shepard , Robert J. Blemberg , Scott W. Middleton , Jerry F. Jesse
- 申请人地址: IL Chicago
- 专利权人: American National Can Company
- 当前专利权人: American National Can Company
- 当前专利权人地址: IL Chicago
- 主分类号: B32B27/08
- IPC分类号: B32B27/08 ; B32B27/32 ; B32B27/34
摘要:
A clear, multilayer polymeric film that is desirable for thermoforming applications. The film in its various embodiments include two inner layers of nylon and/or a core layer of ethylene vinyl alcohol or ethylene vinyl alcohol copolymer sandwiched between the two inner nylon layers. The film can also contain two nylon layers which are bonded together via an adhesive layer and not contain a core layer of ethylene vinyl alcohol. The film also has an outer layer of a heat sealable polymer and may also have an outer layer of nylon. The film is coextruded, blown into a tubular shape, oriented, and cooled by the method of tubular water quenching. The film has various improved physical properties over the prior art, including properties of "memory", clarity, gloss and low haze.
公开/授权文献
- US5160145A Apparatus and method of playing a board game 公开/授权日:1992-11-03