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:
Nov. 19, 2024
Filed:
Nov. 11, 2020
Dow Global Technologies Llc, Midland, MI (US);
Karlheinz Hausmann, Auvernier, CH;
Justice Alaboson, Rosharon, TX (US);
Jian Wang, Missouri City, TX (US);
Brayden E. Glad, Manvel, TX (US);
Ronald Wevers, Terneuzen, NL;
Sanjib Biswas, Manvel, TX (US);
Andrew T. Heitsch, Angleton, TX (US);
Mridula Kapur, Lake Jackson, TX (US);
Didem Oner-Deliormanli, Bellaire, TX (US);
Joshua B. Gaubert, Pearland, TX (US);
Alexander Williamson, Rosharon, TX (US);
Mehmet Demirors, Pearland, TX (US);
Dow Global Technologies LLC, Midland, MI (US);
Abstract
The present invention relates to oriented, multilayer polyethylene films. In one aspect, a biaxially oriented, multilayer polyethylene film comprises at least one layer comprising: (1) a polyethylene-based composition that comprises: (a) at least 97% by weight, based on the total weight of the polyethylene-based composition, of a polyethylene composition comprising: (i) from 25 to 37 percent by weight of a first polyethylene fraction having a density in the range of 0.935 to 0.947 g/cmand a melt index (I) of less than 0.1 g/10 minutes; and (ii) from 63 to 75 percent by weight of a second polyethylene fraction; and (b) 20 to 5000 ppm, based on the total weight of the polyethylene-based composition of a nucleating agent, wherein the nucleating agent comprises a calcium salt of 1,2-cyclohexanedicarboxylic acid or sodium 4-[(4-chlorobenzoyl) amino] benzoate; wherein the polyethylene composition has less than 0.10 branches per 1,000 carbon atoms when measured usingC NMR, wherein the density of the polyethylene-based composition is at least 0.965 g/cm, and wherein the melt index (I) of the polyethylene-based composition is 0.5 to 10 g/10 minutes.