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US 11,913,238 B2Granted
Polymer foam sheet and barrier layer composite
AssigneePalziv Ein Hanaziv Agricultural Cooperative Society Ltd.
InventorsSam Saladino, Zeev Tzur, Baruch Zur
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Abstract
A moisture barrier layer-foamed polymeric composite sheet underlayment article comprising a foamed polymeric sheet and a moisture barrier layer adhered thereto is disclosed. In one aspect, cork particles are present in the composite.
Claims11
A composite consisting of:
- a foamed low density polyethylene sheet comprising cork particles, having a first surface and a second surface;
- and
- a moisture barrier layer of 10 to about 500 microns in thickness adjacent at least one of the first and the second surfaces,
- wherein the moisture barrier layer is a single film layer comprising a cellulose polyolefin vinyl acetate film,
- wherein the cork particles are of an average particle size of 500 microns to 1000 microns and the foamed low density polyethylene sheet comprises an average foam cell diameter between 600 microns to 1500 microns.
2 more elements
A composite comprising:
- at least partially cross-linked low density polyethylene foamed sheet comprising cork particles in an amount of between 1 PHR to 50 PHR;
- and
- a moisture barrier layer of 10 microns to about 500 microns in thickness adhered to at least one side of the at least partially cross-linked low density polyethylene foamed sheet,
- wherein the moisture vapor barrier layer is a single film layer comprising a cellulose-polyolefin vinyl acetate film,
- wherein the cork particles are of an average particle size of 500 microns to 1000 microns and the foamed polymeric sheet comprises an average foam cell diameter between 600 microns to 1500 microns.
2 more elements
Dependencies are inferred from the claim text.