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:
May. 07, 2024
Filed:
Oct. 06, 2020
Dow Global Technologies Llc, Midland, MI (US);
Lawrence J. Effler, Jr., Rosharon, TX (US);
Teresa P. Karjala, Lake Jackson, TX (US);
Nermeen W. Aboelella, Pearland, TX (US);
Nicolas C. Mazzola, Pearland, TX (US);
Vivek Kalihari, Missouri City, TX (US);
Dow Global Technologies LLC, Midland, MI (US);
Abstract
Embodiments of the present invention relate to multilayer films and articles. In one aspect, a multilayer film comprises at least one outer layer comprising at least 50 wt % of a polyethylene composition comprising the reaction product of ethylene and optionally, one or more alpha-olefin comonomers, wherein the polyethylene composition is characterized by the following properties: a. a melt index, I, of from 0.3 to 3.0 g/10 min; b. a density of from 0.950 to 0.965 g/cm; c. a melt flow ratio, I/I, of from 6.3 to 7.5; and d. a molecular weight distribution (MWD) of from 2.2 to 3.5, wherein the multilayer film has a thickness of at least 2 mils, wherein the multilayer film comprises at least 50% by weight polyethylene, wherein the multilayer film exhibits a surface haze of 13.5% or less when measured according to ASTM 1003-07, and wherein the multilayer film exhibit a water vapor transmission rate of 0.7 g/mil/100 in/day or less when measured according to ASTM F1249-06 at a temperature of 38° C. and a relative humidity of 100%.