B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/783
B29C 47/20 (2006.01) B29C 47/00 (2006.01) B32B 3/30 (2006.01) B65D 30/08 (2006.01)
Patent
CA 1080925
ABSTRACT A laminated thermoplastic packaging film which is integrally reinforced by means of integral ribs which form a part of the film structure. The ribs on each side are parallel to each other and are oblique to the longitudinal and traverse axes of the film. The ribs on opposite sides of the laminate run in intersecting directions to form a network-like configuration. The ribs may be formed with a tubular extrusion die which has been provided with small notches with rounded corners around the periphery of the die orifice. As the film is being extruded, the notched portion of the die is rotated so that the rib reinforced extruded product is characterized by having ribs, tracking in a helical path, around the extruded film tube. The extruded thermoplastic tubing with the helical ribs may then be flattened while still in a heat-softened condition, by a pair of rollers or other means, to form a two- layer. The resultant laminate is characterized by having a diamond-like network of intersecting reinforcing ribs and may be used in the fabrication of articles such as bags, packaging material and the like.
254791
Mobil Oil Corporation
Na
LandOfFree
Helical rib reinforced laminate does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Helical rib reinforced laminate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Helical rib reinforced laminate will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-719900