B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 5/22 (2006.01) B32B 7/06 (2006.01) B32B 27/32 (2006.01) G09F 3/02 (2006.01) G09F 3/10 (2006.01)
Patent
CA 2125887
An opaque, biaxially oriented polymeric label stock structure, of: (a) a thermoplastic polymer matrix core layer having a first surface and a second surface, within said core is located a strata of voids; positioned at least substantially within a substantial number of said voids is at least one spherical void-initiating particle which is phase distinct and incompatible with the matrix material, the void space occupied by the particle being substantially less than the volume of the void, with one generally cross-sectional dimension of the particle at least approximating a corresponding cross- sectional dimension of the void; the population of the voids in the core being such as to cause a significant degree of opacity; (b) a first high gloss medium density polyethylene skin layer adhering to the first surface of the core layer; (c) a second thermoplastic polymer skin layer adhering to the second surface of t)le core layer; and (d) an adhesive on the second surface of the thermoplastic skin layer.
Gowling Lafleur Henderson Llp
Mobil Oil Corporation
LandOfFree
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