B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 3/30 (2006.01) B29C 53/06 (2006.01) E05D 1/02 (2006.01) B29C 37/00 (2006.01)
Patent
CA 2087078
ABSTRACT A composite plastic sheet material consists of a thinner plastic film and a thicker plastic film which are laminated wherein a ruled line is formed in the laminated plastic films from the thinner plastic film side; the ruled line has two kinds of depth in the longitudinal direction and the depth of the ruled line is larger than the thickness of the thinner plastic film, and wherein the depth of deep portions of the ruled line is in a range of from 60% to 100% of the entire thickness of the laminated plastic films and the depth of shallow portions is in a range of from 20% to 95%.
Fujio Masaaki
Hashimoto Tadashi
Fuji Seal Industry Co. Ltd.
Mitsubishi Plastics Industries Limited
Smart & Biggar
LandOfFree
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