发明公开
EP1810822A4 HEAT SHRINKABLE LAMINATED FILM, MOLDED ARTICLE USING SUCH FILM, AND HEAT SHRINKABLE LABEL AND CONTAINER
审中-公开
热收缩层压薄膜,模塑制品使用这种性膜和容器和热收缩标签
- 专利标题: HEAT SHRINKABLE LAMINATED FILM, MOLDED ARTICLE USING SUCH FILM, AND HEAT SHRINKABLE LABEL AND CONTAINER
- 专利标题(中): 热收缩层压薄膜,模塑制品使用这种性膜和容器和热收缩标签
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申请号: EP05806063申请日: 2005-11-10
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公开(公告)号: EP1810822A4公开(公告)日: 2010-12-15
- 发明人: YAMADA TAKEYOSHI , TANAKA YUKIHIRO , HIRUMA TAKASHI , MIYASHITA YOU , TAKAGI JUN
- 申请人: MITSUBISHI PLASTICS INC
- 专利权人: MITSUBISHI PLASTICS INC
- 当前专利权人: MITSUBISHI PLASTICS INC
- 优先权: JP2004326965 2004-11-10; JP2004326966 2004-11-10
- 主分类号: B32B27/30
- IPC分类号: B32B27/30 ; B32B27/36 ; B65D65/40 ; G09F3/04
摘要:
The present invention provides a heat-shrinkable laminated film, which exhibits excellent film rigidity, shrink finishing quality, transparency of the recycled film, and a small natural shrinkage, with suppressed film interlayer peeling and shrinking stress, and which is applicable to shrinkable packing, shrinkable bond-packing, shrinkable label and the like. The heat-shrinkable laminated film comprises: a surface layer (S layer) composed of a polyester series resin composition containing a polyvalent carboxylic acid residue and a polyvalent alcohol residue; a middle layer (M layer) composed of a styrene series resin composition; and an adhesive layer (AD layer) which contains a copolymer of styrene series hydrocarbon and a conjugated dienic hydrocarbon or hydrogenated derivatives thereof, and having a styrene series hydrocarbon content rate to the entire copolymer or hydrogenated derivatives is 5~40 mass % or less. An elongation modulus of the film in a direction perpendicular to a main shrinking direction of the film is 1200MPa or more, and a shrinking stress in the main shrinking direction of the film is 8MPa or less or a rupture elongation at 23°C is 40% or more.
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