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US 2018/0345628 A1Published application
Aluminium barrier laminate and barrier liner at shoulder for container
AssigneeKimpai Lamitube Co., Ltd.
InventorSumet LIMATIBUL
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Abstract
A laminate sheet, particularly an aluminium-based laminate comprises polyethylene having a density of 0.90-0.96 g/cc, a polyethylene-based film having a melting temperature of less than 240° C.; low density polyethylene in order to provide high adhesion; an aluminium barrier film, and a polyethylene-based film having a sealing property. Furthermore, the laminate sheet may further comprise a blown film or a dry laminate for making a tube and a tube shoulder in order to prevent flavor loss of the products packaged therein and without stress crack.
Claims15
A laminate comprising:
- a first layer having a polyethylene-based film with a density of 0.90-0.96 g/cc;
- a second layer having a polyethylene-based film with a melting temperature of less than 240° C.;
- a third layer having low density polyethylene in order to provide high adhesion;
- a fourth layer having an aluminium barrier film with a thickness of 7-20 microns;
- a fifth layer having low density polyethylene in order to provide high interlayer adhesion;
- a sixth layer having a polyethylene-based film with a melting temperature of less than 240° C.;
- and
- a seventh layer having a polyethylene-based film with a sealing property.
5 more elements
A laminate comprising:
- a first layer having a polyethylene-based film with a density of 0.90-0.95 g/cc;
- a second layer with a dry lamination;
- a third layer having an aluminium barrier film with a thickness in the range of 7-20 microns;
- a fourth layer having low density polyethylene in order to provide high interlayer adhesion;
- a fifth layer having a polyethylene-based film with a melting temperature of less than 240° C. which is polyethylene having a density of 0.85-0.94 g/cc;
- and
- a sixth layer having a polyethylene-based film with a sealing property, preferably be a monolayer film, a multilayer film, more preferably a 3-layer film, or a blend of 90% to 99% of polyolefin and 1% to 10% of polyolefin plastomer.
4 more elements
Dependencies are inferred from the claim text.