发明授权
- 专利标题： Lettuce packaging film
- 专利标题（中）： 莴苣包装膜
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申请号： US591333申请日： 1990-10-01
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公开(公告)号： US5110677A公开(公告)日： 1992-05-05
- 发明人: Charles R. Barmore , Henry G. Schirmer
- 申请人： Charles R. Barmore , Henry G. Schirmer
- 申请人地址： SC Duncan
- 专利权人： W. R. Grace & Co.-Conn.
- 当前专利权人： W. R. Grace & Co.-Conn.
- 当前专利权人地址： SC Duncan
- 主分类号： B29C47/06
- IPC分类号： B29C47/06 ; B29C69/00 ; B29K23/00 ; B29L9/00 ; B32B3/24 ; B32B7/02 ; B32B7/10 ; B32B27/08 ; B32B27/18 ; B32B27/28 ; B32B27/32 ; B32B27/34 ; B32B27/36 ; B65D65/40
摘要：
A multilayer laminate comprises a machinable inner component perforated film, preferably of a propylene homopolymer or copolymer, a first outer component film bonded to one side of the inner component film, and a second outer component film bonded to the opposite side of the inner component film, each of the first and second outer component films providing high gas permeability and low moisture transmission and including a bonding layer of ethylene copolymers and an outer heat sealable layer.
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