Thermoplastic multilayer ethylene polymer sheet for containment of odoriferous product components
AssigneeColgate-Palmolive Company
InventorsPaul Pezzoli, Randal Bollinger
Life of this patent
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Abstract
A recyclable multilayer ethylene polymer sheet structure for constructing a package to hold bulk products such as dry pet food having an odoriferous component, the sheet having, from the inner surface contacting the product, to the outer non-product contacting surface the structure: LLDPE/HDPE/LLDPE/BR/LDPE where LLDPE is a linear low density polyethylene, HDPE is a high density polyethylene and BR is an odor barrier resin such as ethylene vinyl alcohol copolymer having odor barrier properties and LDPE is low density polyethylene.
Claims7
A recyclable multilayer sheet for constructing packages for products having odoriferous fugitive components the multilayer sheet comprising a three layer coextrudate having a core layer of high density polyethylene sandwiched between first and second layers of linear low density polyethylene, a layer comprised of an polymeric odor barrier material adhered to the one of the linear low density polyethylene layers and a layer of low density polyethylene adhered to the odor barrier material.
Dependencies are inferred from the claim text.