发明授权
US5173345A Flexible multilayer structures comprising a layer of vinylidene chloride copolymer bonded to a layer of plasticized vinyl chloride polymer and their use for the manufacture of packaging 失效
包含氯乙烯氯化物共聚物层的柔性多层结构与一层氯化聚氯乙烯聚合物及其用于包装的制造的用途

  • 专利标题: Flexible multilayer structures comprising a layer of vinylidene chloride copolymer bonded to a layer of plasticized vinyl chloride polymer and their use for the manufacture of packaging
  • 专利标题(中): 包含氯乙烯氯化物共聚物层的柔性多层结构与一层氯化聚氯乙烯聚合物及其用于包装的制造的用途
  • 申请号: US730591
    申请日: 1991-07-16
  • 公开(公告)号: US5173345A
    公开(公告)日: 1992-12-22
  • 发明人: Claude DehennauSerge DuPont
  • 申请人: Claude DehennauSerge DuPont
  • 申请人地址: BEX Brussels
  • 专利权人: Solvay S.A.
  • 当前专利权人: Solvay S.A.
  • 当前专利权人地址: BEX Brussels
  • 优先权: BEX09000748 19900727
  • 主分类号: B32B7/02
  • IPC分类号: B32B7/02 B32B7/12 B32B27/30 B65D65/40 C08L27/06 C09J131/04
Flexible multilayer structures comprising a layer of vinylidene chloride
copolymer bonded to a layer of plasticized vinyl chloride polymer and
their use for the manufacture of packaging
摘要:
The flexible multilayer structures comprise a layer of vinylidene chloride copolymer bonded to a layer of plasticized vinyl chloride polymer with the aid of a polymeric adhesive consisting of a mixture of vinyl acetate polymer and of polymethyl methacrylate, for which the product of the vinyl acetate weight content, expressed in per cent, multiplied by the dynamic viscosity at 100.degree. C. and 1 s.sup.-1, expressed in kPa s, is greater than 1.3.times.10.sup.3.The flexible multilayer structures may be in the form of films, sheets, cartons or flexible pouches which can be employed in the packaging field.
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