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. 05, 2022
Filed:
Sep. 13, 2012
João Gargalaka, Jr., São Paulo, BR;
Felipe Martinez Barreneche, Houston, TX (US);
Jorge Caminero Gomes, Sao Paulo, BR;
Nicolas Cardoso Mazzola, Jundiai, BR;
João Gargalaka, Jr., São Paulo, BR;
Felipe Martinez Barreneche, Houston, TX (US);
Jorge Caminero Gomes, Sao Paulo, BR;
Nicolas Cardoso Mazzola, Jundiai, BR;
DOW GLOBAL TECHNOLOGIES LLC, Midland, MI (US);
Abstract
The present invention relates to a film structure comprising an outer layer, a core and an inner layer (or sealant layer). The outer layer comprises a polyolefinic material having a Vicat softening temperature of 85° C. or greater, and a total crystallinity in the range of 25 to 45%. The core comprises a linear low density polyethylene having a density of 0.925 g/cmor less, and a melt index of 4.0 g/10 min or less. The inner layer comprises linear low density polyethylene having a density of from 0.865 to 0.926 g/cmand a melt index of less than 4.0 g/10 minutes. The films of the present invention have less than 25% of polyethylenes having a density of 0.930 g/cmor greater. Further, the films of the present invention can be characterized by the substantial absence of polyamide, polyester, ethylene vinyl acetate, ionomers, polyvinyl chloride, and/or cyclic olefin polymers.