Invention Grant
US08852748B2 Polyethylene film having improved barrier properties and methods of making same
有权
具有改进的阻挡性能的聚乙烯膜及其制造方法
- Patent Title: Polyethylene film having improved barrier properties and methods of making same
- Patent Title (中): 具有改进的阻挡性能的聚乙烯膜及其制造方法
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Application No.: US12394636Application Date: 2009-02-27
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Publication No.: US08852748B2Publication Date: 2014-10-07
- Inventor: Ashish M. Sukhadia , Max P. McDaniel , Ted Cymbaluk , Rajendra K. Krishnaswamy , Lawrence Szmutko
- Applicant: Ashish M. Sukhadia , Max P. McDaniel , Ted Cymbaluk , Rajendra K. Krishnaswamy , Lawrence Szmutko
- Applicant Address: US TX The Woodlands
- Assignee: Chevron Phillips Chemical Company LP
- Current Assignee: Chevron Phillips Chemical Company LP
- Current Assignee Address: US TX The Woodlands
- Agency: Conley Rose, P.C.
- Agent Rodney B. Carroll; Cheryl L. Huseman
- Main IPC: C08F210/00
- IPC: C08F210/00 ; C08F110/02 ; B32B27/08 ; C08J5/18

Abstract:
A polymeric resin having a density of greater than about 0.960 g/cc, a melt index of from about 1.3 g/10 min. to about 2.8 g/10 min., a zero shear viscosity of from about 1×104 Pa*s to about 1×105 Pa*s, a recoverable shear parameter of from about 220 to about 370, and a CY-a parameter of from about 0.155 to about 0.200. A polymeric resin having an initial tension defined by the equation IT≧−1.67*(MI)+b where b is 5.17 and a percent decrease in the extrusion pressure of the resin of about 30% when compared to polymer resin of similar melt index prepared with a catalyst that has not undergone an activation comprising an oxidation, reduction, oxidation sequence wherein the resin when formed into a film has a moisture vapor transmission rate of from about 0.21 g.mil/100 in2/day to about 0.33 g.mil/100 in2/day.
Public/Granted literature
- US20100221475A1 Polyethylene film having improved barrier properties and methods of making same Public/Granted day:2010-09-02
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