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US 2004/0105993 A1Published application
Paper plastic laminate sheeting
AssigneeTru-Tech Group, Inc.
InventorsArnold B. Finestone, Gilbert Bloch
Life of this patent
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AssigneeTru-Tech Group, Inc.
InventorsArnold B. Finestone, Gilbert Bloch
Estimating the term…
A paper-plastic laminate sheeting capable of being converted by conventional equipment into envelopes, grocery bags and other dilatable container products that initially are in a flat state and are normally made of paper. The sheeting is composed of a paper facing sheet cold-laminated by means of a water-based adhesive to a reinforcing film of synthetic plastic material, such as polypropylene. The film is oriented to impart exceptional tear and burst strength characteristics to the resultant waterproof product. The product, whose exterior surface is formed by the paper facing sheet, is readily printable. For some applications, a second paper facing sheet is cold-laminated to the other side of the film to produce a three-ply laminate sheeting whose exposed surfaces are readily printable and can accept conventional adhesives.
A flexible paper-plastic laminate sheeting comprising at least one paper sheet, a reinforcing film of a synthetic oriented polymer that has at least one surface treated to increase its dynes and make it receptive to adhesives, wherein the film is laminated to at least one of the paper sheets by a water-based adhesive that contacts the treated surface of the film and has its water absorbed by the paper sheet to effect lamination thereof.
A flexible paper-plastic laminate sheeting comprising first and second paper sheets, a reinforcing film of a synthetic oriented polymer that has first and second surfaces treated to increase its dynes and make it receptive to adhesives, wherein the film is laminated to both paper sheets by a water-based adhesive that contacts each treated surface of the film and has its water absorbed by the respective first and second paper sheets to effect lamination thereof.
A method of making a flexible paper-plastic laminate sheeting comprising:
A flexible paper-plastic laminate sheeting comprising, in combination, at least one paper facing sheet laminated to at least one reinforcing film of a synthetic oriented polymer using a water-based adhesive that does not contain volatile organic solvents and that does not require the addition of curing agents or catalysts to promote curing of the adhesive, and the surface of the film that is laminated to the paper facing sheet is treated by ionization to enhance its affinity for the water-based adhesive, whereby products made from the sheeting have a printable paper exterior.
Dependencies are inferred from the claim text.