Barrier laminate structure for beverage packaging

Patent Name Barrier Laminate Structure for Beverage Packaging Patent Applicant International Paper Corporation Principal Applicant Address Ohio State Inventor Christopher S Cleveland; Richard A. Tedford; Tricia S. Reigard Application (Patent) No. 03809839.3 Date of Application 2003.05.02 Approval Date Approval Notice No. 1649729 Audit Notice Date 2005.08.03 Specification CD-ROM D0531 Main Classification Number B32B27/10 Classification Number B32B27/10; B32B27/08; B65D65/ 40 division Original application number Priority item 2002.5.2 US 60/376,875 Abstract A barrier laminate packaging material according to which the preparation is made from its outermost surface to the innermost surface of the contact container contents includes: First low density poly. Ethylene polymer outer layer, paperboard substrate, a first inner laminate layer coated with nylon together with a connecting resin layer, one containing the first low density polyethylene polymer layer, a tie layer, the first EVOh Layer, second tie layer, second EVOH inner layer, third tie layer and second low density polyethylene polymer inner blown film layer, and one innermost contact product The product's low-density polyethylene layer. Sovereignty item 1. A laminate packaging material comprising: a paperboard substrate having an inner surface and an outer surface; an outer layer of a heat-sealable polyolefin polymer coated on said outer surface of said paperboard substrate; A polyamide layer coated on the inner surface of the paperboard substrate; a tie layer coated on the inner surface of the polyamide layer; a film layer comprising a polyolefin polymer outer layer, A tie layer, a first ethylene polyvinyl alcohol copolymer layer, a second tie layer, a second ethylene polyvinyl alcohol copolymer layer, a third tie layer and a second and final polyolefin layer, The film layer is coated on the inner surface of the connecting layer coated on the inner surface of the polyamide layer; and the innermost polyolefin layer is coated on the last polyolefin layer of the film layer. . International Application PCT/IB2003/001768 2003.5.2 International Publication WO2003/093009 English 2003.11.13 Entering the National Date Patent Agency Beijing King & Wood Law Firm Office Address Agent Chen Wenping