GAS PHASE POLYETHYLENE COPOLYMERS
Polyethylene copolymers with a structure that provides improved film properties are provided. The copolymers can have a density of about 0.905 to about 0.911 g/cm3. The copolymers can also have a DRI/I2 ratio of about 0.0008 to about 0.060, an I2 value of about 0.6 to about 3.8 dg/min, and an I21 va...
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| creator | SHANNON, Porter C GUY, Nathaniel B SCHULZE, James L O'NEIL, Daniel G BENNETT, Handel D TRIBO, Michael G |
| description | Polyethylene copolymers with a structure that provides improved film properties are provided. The copolymers can have a density of about 0.905 to about 0.911 g/cm3. The copolymers can also have a DRI/I2 ratio of about 0.0008 to about 0.060, an I2 value of about 0.6 to about 3.8 dg/min, and an I21 value of about 8 to about 57 dg/min. The copolymers having those properties can be produced by introducing ethylene and at least one other olefin comonomer to a single reactor at a comonomer/ethylene mole ratio of about 0.02 to about 0.03 and polymerizing at a temperature of about 76.7° C. to about 80.6° C. and a pressure of about 1,724 kPa to about 2,413 kPa. The copolymers can be used to make films having a 21 mol % O2 transmission rate of about 150 to about 200 cc/100 in2/24 hr. and hot tack seal initiation temperatures of about 65° C. to 80° C. |
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The copolymers can have a density of about 0.905 to about 0.911 g/cm3. The copolymers can also have a DRI/I2 ratio of about 0.0008 to about 0.060, an I2 value of about 0.6 to about 3.8 dg/min, and an I21 value of about 8 to about 57 dg/min. The copolymers having those properties can be produced by introducing ethylene and at least one other olefin comonomer to a single reactor at a comonomer/ethylene mole ratio of about 0.02 to about 0.03 and polymerizing at a temperature of about 76.7° C. to about 80.6° C. and a pressure of about 1,724 kPa to about 2,413 kPa. 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The copolymers can be used to make films having a 21 mol % O2 transmission rate of about 150 to about 200 cc/100 in2/24 hr. and hot tack seal initiation temperatures of about 65° C. to 80° C.</description><subject>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G</subject><subject>CHEMISTRY</subject><subject>COMPOSITIONS BASED THEREON</subject><subject>GENERAL PROCESSES OF COMPOUNDING</subject><subject>MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS</subject><subject>METALLURGY</subject><subject>ORGANIC MACROMOLECULAR COMPOUNDS</subject><subject>THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><subject>WORKING-UP</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFB0dwxWCPBwDHZVCPD3iXQN8Yj0cfVzVXD2B3F9XYOCeRhY0xJzilN5oTQ3g4Kba4izh25qQX58anFBYnJqXmpJvGuAiYGphYmloaOhMRFKAOoUIgk</recordid><startdate>20220921</startdate><enddate>20220921</enddate><creator>SHANNON, Porter C</creator><creator>GUY, Nathaniel B</creator><creator>SCHULZE, James L</creator><creator>O'NEIL, Daniel G</creator><creator>BENNETT, Handel D</creator><creator>TRIBO, Michael G</creator><scope>EVB</scope></search><sort><creationdate>20220921</creationdate><title>GAS PHASE POLYETHYLENE COPOLYMERS</title><author>SHANNON, Porter C ; GUY, Nathaniel B ; SCHULZE, James L ; O'NEIL, Daniel G ; BENNETT, Handel D ; TRIBO, Michael G</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP4058491A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2022</creationdate><topic>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G</topic><topic>CHEMISTRY</topic><topic>COMPOSITIONS BASED THEREON</topic><topic>GENERAL PROCESSES OF COMPOUNDING</topic><topic>MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS</topic><topic>METALLURGY</topic><topic>ORGANIC MACROMOLECULAR COMPOUNDS</topic><topic>THEIR PREPARATION OR CHEMICAL WORKING-UP</topic><topic>WORKING-UP</topic><toplevel>online_resources</toplevel><creatorcontrib>SHANNON, Porter C</creatorcontrib><creatorcontrib>GUY, Nathaniel B</creatorcontrib><creatorcontrib>SCHULZE, James L</creatorcontrib><creatorcontrib>O'NEIL, Daniel G</creatorcontrib><creatorcontrib>BENNETT, Handel D</creatorcontrib><creatorcontrib>TRIBO, Michael G</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SHANNON, Porter C</au><au>GUY, Nathaniel B</au><au>SCHULZE, James L</au><au>O'NEIL, Daniel G</au><au>BENNETT, Handel D</au><au>TRIBO, Michael G</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>GAS PHASE POLYETHYLENE COPOLYMERS</title><date>2022-09-21</date><risdate>2022</risdate><abstract>Polyethylene copolymers with a structure that provides improved film properties are provided. 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| subjects | AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP |
| title | GAS PHASE POLYETHYLENE COPOLYMERS |
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