Laminates of films and methods and apparatus for the...

Details Laminates of films and methods and apparatus for the... Laminates of films and methods and apparatus for the...

2006-11-07

2006-11-07

Loney, Donald J. (Department: 1772)

Stock material or miscellaneous articles

Structurally defined web or sheet

Nonplanar uniform thickness material

C428S035200, C428S172000, C425S322000, C425S336000, C425S339000, C156S205000, C156S207000

Reexamination Certificate

active

07132151

ABSTRACT:
A laminate of thermoplastic polymeric films comprises a fluted ply A and non-fluted ply B, adhered to one another in bonded zones along some of the flute crests the fluted ply A. The wavelength of the flutes is preferably no more than 3 mm. Ply A has a generally uniform thickness or can have attenuated zones of lessor thickness extending parallel to the flute direction, each bonded zone being located mainly within an attenuated zone. The flutes can be sinuous with crests on both sides of ply A and can be adhered on each side to a ply B. The flutes can be filled with filler material, including reinforcement strands, and one or both sides can be perforated. The method and apparatus employ aligned grooved fluting rollers and a grooved laminating roller.

REFERENCES:
patent: 4132581 (1979-01-01), Swartz
patent: 5670238 (1997-09-01), Earl et al.
patent: 6139938 (2000-10-01), Lingle et al.

Affiliated with

Also associated with

Rating

Laminates of films and methods and apparatus for the... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Laminates of films and methods and apparatus for the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laminates of films and methods and apparatus for the... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3675017