Stock material or miscellaneous articles – Structurally defined web or sheet – Nonplanar uniform thickness material
Reexamination Certificate
2011-03-08
2011-03-08
Sample, David R (Department: 1783)
Stock material or miscellaneous articles
Structurally defined web or sheet
Nonplanar uniform thickness material
C428S166000, C428S182000, C428S184000, C428S186000, C428S198000, C428S178000, C428S188000
Reexamination Certificate
active
07901758
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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PCT International Search Report, Apr. 2004.
Sample David R
Simone Catherine
Strozier Robert W
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