Invention Grant
US07901758B2 Laminates of films having improved resistance to bending in all directions and methods and apparatus for their manufacture
失效
具有改进的耐弯曲性的薄膜在各个方向上的层叠体及其制造方法和装置
- Patent Title: Laminates of films having improved resistance to bending in all directions and methods and apparatus for their manufacture
- Patent Title (中): 具有改进的耐弯曲性的薄膜在各个方向上的层叠体及其制造方法和装置
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Application No.: US10538224Application Date: 2003-12-09
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Publication No.: US07901758B2Publication Date: 2011-03-08
- Inventor: Ole-Bendt Rasmussen
- Applicant: Ole-Bendt Rasmussen
- Agent Robert W Strozier
- Priority: GB0229110.2 20021213; GB0304649.7 20030228; GB0319955.1 20030826
- International Application: PCT/EP03/15001 WO 20031209
- International Announcement: WO2004/054793 WO 20040701
- Main IPC: B32B1/00
- IPC: B32B1/00 ; B32B3/12 ; B32B3/28 ; B32B3/30 ; B32B3/20 ; B32B27/14
Abstract:
The present invention relates to a flexible laminate of films of thermoplastic polymer material mainly for applications in which relatively high yield strength and ultimate tensile strength is required, and a method and apparatus for its manufacture. The laminate comprises a monofilm formed or multifilm-formed ply (A) and another monofilm-formed or multifilm formed ply (B) both mainly consisting of orientable thermoplastic polymer material, in which A has a fluted configuration and B on a first side is adhesively bonded in bonding zones to the crests on a first side of A, in which B also has a fluted configuration, the flute direction of B forming an angle from generally about 30° up to and including 90° to the flute direction of A and the said bonding zones being on the crests of the first side of B to produce spot bonding with the crests on the first side of A, the wavelengths of the flutes in A and/or B are no longer than 5 mm, and the wavelengths of the flutes in both A and B are less than 10 mm.
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