Laminated lidding material

Details Laminated lidding material Laminated lidding material

1982-05-19

1984-06-05

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

215347, 215348, 215349, 220200, 220359, 229 43, 428516, 428200, 428201, 4284231, 4284235, 4284237, 4284248, 4284258, 428461, 4284761, 428483, 428502, 428513, C08G 1879

Patent

active

044528426

ABSTRACT:
A laminated lidding material suitable for use on cups of high density polyethylene and/or polypropylene comprises (1) as the bottom layer, a co-extruded layer of ethylene methyl acrylate and low density polyethylene resin, (2) a primer layer, preferably of polyurethane, (3) a layer of polyester, nylon, polypropylene or metallic foil, (4) a layer of low density polyethylene resin, and (5) a top layer of metallic foil, preferably aluminum foil. Lids prepared from this material can be adhered to the tops of high density polyethylene and/or polypropylene cups, and have sufficient strength so that they do not tear on removal.

REFERENCES:
patent: 3582452 (1971-06-01), Britton
patent: 4092452 (1978-05-01), Hori et al.
patent: 4171084 (1979-10-01), Smith
patent: 4216268 (1980-08-01), Stillman
patent: 4284672 (1981-08-01), Stillman

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