US 11,305,513 B2 · Laminate liner

Abstract

The invention relates to a laminate liner for sealingly engaging a container in an associated container and closure assembly. The liner can include at least first, second, third, and fourth layers, respectively, and have a thickness between 0.0060-0.0120 inches. The first and bottom layer, can comprise a plastic polymeric material, and have a thickness between 0.0005-0.0015 inches. The second layer can comprise a metallic material and have a thickness between 0.0005-0.0010 inches. The third layer can comprise a chip board material, and have a thickness between 0.0045-0.0055 inches. The third layer can prevent the liner from curling or deforming from its preferably flat shape. The fourth and top layer can comprise a plastic polymeric material and have a thickness between 0.0005-0.0015 inches. An adhesive bonding layer, having a thickness between 0.0003-0.0005 inches, can be located between first, second, third, and fourth layers, to bond adjacent layers together.

Claims7

Dependent claims

A liner configured to engage a closure, the liner consisting of four layers and an adhesive:

Each layer being secured to an adjacent layer by the adhesive;
Said layers consisting of:
a first layer comprising a first polymeric material, the first layer having a first thickness between 0.0005 inches and 0.0015 inches;
a second layer adjacent the first layer, the second layer comprising a metallic material, and the second layer having a second thickness between 0.0005 inches and 0.0010 inches;
and
a fourth layer adjacent a third layer comprising a second polymeric material, the fourth layer having a fourth thickness between 0.0005 inches and between 0.0015 inches;
wherein the improvement is the third layer adjacent the second layer consisting of a pulp based material configured to resist curling and having a thickness from 0.0045 to 0.0055 inches;
wherein the liner is thereby configured to engage and seal the closure, without curling.

5 more elements

Dependencies are inferred from the claim text.

Laminate liner

Life of this patent

Laminate liner

Life of this patent

Abstract

Claims7