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US 12,692,058 B2Granted
Laminate and standing pouch
AssigneeToppan Inc.
InventorsShukiko Imaizumi, Kazuyoshi Ro
Life of this patent
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Abstract
A laminate includes a substrate layer and a heat-sealing layer. A fold of the laminate produced by a weight of a 2 kg roller has a folding angle of 20 to 55°, and a content of polyethylene in the laminate is 90% by mass or more. The folding angle may be 25 to 55°. The substrate layer may contain high-density polyethylene. The substrate layer may be a uniaxially oriented linear low-density polyethylene film or an unstretched film made of polyethylene.
Claims10
A laminate, comprising:
- a substrate layer consisting of high-density polyethylene;
- a heat-sealing layer consisting of linear low-density polyethylene and 5-20% of cyclic polyolefin, and
- an anchor coat layer between the substrate layer and the heat-sealing layer, the anchor layer being in direct contact with each of the substrate layer and the heat-sealing layer
- wherein
- a fold of the laminate produced by a weight of a 2 kg roller has a folding angle of 20 to 55°,
- a content of polyethylene in the laminate is 90% by mass or more,
- a thickness of the substrate layer is from 20 or 50 μm;
- a thickness of the heat-sealing layer is from 25 to 30 μm;
- and
- a thickness of the anchor coat layer is from 0.05 to 2 μm.
7 more elements
A laminate, consisting of
- a substrate layer consisting of high-density polyethylene;
- and
- a heat-sealing layer consisting of linear low-density polyethylene,
- wherein
- the substrate layer is an unstretched film;
- a fold of the laminate produced by a weight of a 2 kg roller has a folding angle of 20 to 55°, and
- a content of polyethylene in the laminate is 90% by mass or more.
4 more elements
Dependencies are inferred from the claim text.