# US 10,308,736 B2 · Polyethylene polymers and articles made therefrom > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,308,736 B2 - Document ID: US10308736B2 - Status: Granted - Kind: B2 - Application number: 15/228,343 - Filed: 2016-08-04 - Published: 2017-03-23 - Granted: 2019-06-04 - Earliest claimed: 2015-09-17 - Assignees: ExxonMobil Chemical Patents Inc. - Applicants: ExxonMobil Chemical Patents Inc. - Inventors: Etienne R. H. Lernoux; Wen Li - Web page: https://patentgrep.com/patent/US10308736B2 ## CPC - C08F 110/02: Ethene - C08F 210/16: Copolymers of ethene with alpha-alkenes, e.g. EP rubbers - C08J 5/18: Manufacture of films or sheets - C08J 2323/06: Polyethene - C08J 2323/08: Copolymers of ethene (C08J2323/16 takes precedence) - C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS - C08J: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29) ## Abstract Metallocene-catalyzed polyethylene polymers and articles made therefrom are provided. ## Claims ### Claim 1 A polyethylene polymer comprising at least 65 wt % ethylene derived units, based upon the total weight of the polymer, the polymer having: a melt index (MI) from about 0.1 g/10 min to about 2.0 g/10 min; a density from about 0.910 g/cm3 to about 0.918 g/cm3; a melt index ratio (MIR) from about 35 to about 55; a molecular weight (Mw) of about 85,000 or greater; and a molecular weight distribution (Mw/Mn) of about 2.5 to about 5.5. ### Claim 2 (depends on 1) The polymer of claim 1, wherein the polymer has a melt index (MI) from about 0.2 g/10 min to about 1.0 g/10 min. ### Claim 3 (depends on 1) The polymer of claim 1, wherein the polymer has a melt index (MI) from about 0.2 g/10 min to about 0.5 g/10 min. ### Claim 4 (depends on 1) The polymer of claim 1, wherein the polymer has a melt index (MI) of about 0.2 g/10 min. ### Claim 5 (depends on 1) The polymer of claim 1, wherein the polymer has a density from about 0.910 g/cm3 to about 0.915 g/cm3. ### Claim 6 (depends on 1) The polymer of claim 1, wherein the polymer has a density from about 0.910 g/cm3 to about 0.914 g/cm3. ### Claim 7 (depends on 1) The polymer of claim 1, wherein the polymer has a density of about 0.913 g/cm3. ### Claim 8 (depends on 1) The polymer of claim 1, wherein the polymer has a melt index ratio (MIR) from 35 to about 55. ### Claim 9 (depends on 1) The polymer of claim 1, wherein the polymer has a melt index ratio (MIR) from about 35 to about 50. ### Claim 10 (depends on 1) The polymer of claim 1, wherein the polymer exhibits long chain branching. ### Claim 11 (depends on 1) The polymer of claim 1, wherein the polymer has a g′ branching index from about 0.97 to about 0.99. ### Claim 12 (depends on 1) The polymer of claim 1, wherein the polymer has a g′ branching index from about 0.95 to about 0.98. ### Claim 13 (depends on 1) The polymer of claim 1, wherein the polymer has a molecular weight (Mw) of about 100,000 or greater. ### Claim 14 (depends on 1) The polymer of claim 1, wherein the polymer has a molecular weight (Mw) of about 110,000 or greater. ### Claim 15 (depends on 1) The polymer of claim 1, wherein the polymer has a melt strength of about 1 cN to about 25 cN. ### Claim 16 (depends on 1) The polymer of claim 1, wherein the polymer has a melt strength of about 3 cN to about 15 cN. ### Claim 17 (depends on 1) The polymer of claim 1, wherein the polymer has a T75−T25 value from 5.0 to 10, where T25 is the temperature in degrees Celsius at which 25% of the eluted polymer is obtained and T75 is the temperature in degrees Celsius at which 75% of the eluted polymer is obtained via temperature rising elution fractionation (TREF). ### Claim 18 (depends on 1) The polymer of claim 1, wherein the polymer has a T75−T25 value from 5.5 to 10, where T25 is the temperature in degrees Celsius at which 25% of the eluted polymer is obtained and T75 is the temperature in degrees Celsius at which 75% of the eluted polymer is obtained via temperature rising elution fractionation (TREF). ### Claim 19 (depends on 1) The polymer of claim 1, wherein the polymer has a T75-T25 value from 5.5 to 8, where T25 is the temperature in degrees Celsius at which 25% of the eluted polymer is obtained and T75 is the temperature in degrees Celsius at which 75% of the eluted polymer is obtained via temperature rising elution fractionation (TREF). ### Claim 20 (depends on 1) The polymer of claim 1, wherein the polymer comprises from about 8 wt % to about 15 wt %, of C3-C10 α-olefin derived units, and from about 92 wt % to about 85 wt % ethylene derived units, based upon the total weight of the polymer. ### Claim 21 (depends on 1) The polymer of claim 1, wherein the polymer comprises from about 9 wt % to about 12 wt %, of C3-C10 α-olefin derived units, and from about 91 wt % to about 88 wt % ethylene derived units, based upon the total weight of the polymer. ### Claim 22 (depends on 1) A blend comprising the polymer of claim 1. ### Claim 23 (depends on 1) A film comprising one or more layers, wherein the one or more layers comprise a composition made from the polymer of claim 1. ### Claim 24 (depends on 23) The film of claim 23, wherein the film is a cast film or the film is an oriented blown film, optionally, biaxially oriented. ### Claim 25 (depends on 24) The film of claim 24, wherein the film has a clarity of 75% or greater as measured by ASTM D 1746.