B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
154/140
B32B 27/32 (2006.01) B65D 65/40 (2006.01) C09J 7/02 (2006.01) C09J 123/14 (2006.01)
Patent
CA 1248439
HEAT SEALABLE FILM LAMINATE ABSTRACT An oriented, heat sealable polymer film laminate, useful as a packaging material, comprises a polypropylene core layer, and a first heat sealable surface layer for receiving a water-based coating provided on one surface of the core layer, the first surface layer being formed from a polymer selected from an ethylene-propylene- butene-1 terpolymer, an ethylene-propylene random copolymer and a blend thereof, the polymer being compounded with an anti-blocking agent but being substantially devoid of silicone oil. A second surface layer is provided on the other surface of the core layer and is formed from a polymer selected from an ethylene-propylene-butene-1 terpolymer, an ethylene-propylene random copolymer and a blend thereof. The polymer of the second surface layer is compounded with an anti- blocking agent and a silicone oil such that a coefficient of friction- reducing amount thereof is present on the exposed surface of the first layer as well as the exposed surface of the second layer following mutual contact of said surfaces.
514831
Balloni Riccardo
Donovan Kevin M.
Keung Jay K.
Gowling Lafleur Henderson Llp
Mobil Oil Corporation
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