The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 24, 2001
Filed:
Dec. 10, 1998
Paolo Ciocca, Lumellogno, IT;
Roberto Forloni, Milan, IT;
Cryovac, Inc., Duncan, SC (US);
Abstract
A thermoplastic multilayer packaging film has a core layer including ethylene/vinyl alcohol copolymer; two outer layers, and two adhesive layers each disposed between the core layer and a respective outer layer, characterized in that at least one of the outer layers includes a blend of A, B, and C, wherein component A is a homogeneous or heterogeneous ethylene/alpha olefin copolymer with density comprised greater than 0.915 g/cm,and less than 0.925 g/cm,, component B is a homogeneous or heterogeneous ethylene/alpha olefin copolymer with density greater than or equal to 0.925 g/cm,, and component C is a homogeneous or heterogeneous ethylene/alpha olefin copolymer with density less than or equal to 0.915 g/cm,. The use of modified homogeneous ethylene/alpha olefin copolymers with a density of from 0.900 g/cm,to 0.908 g/cm,as adhesive layers to improve the interlayer adhesion and the sealability properties of films with a core layer comprising an ethylene/vinyl alcohol copolymer or a polyamide and outer layers comprising an ethylene/alpha olefin copolymer is also described.