Patents by Inventor Xiao B. Yun

Xiao B. Yun has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11123964
    Abstract: The present invention relates to a multilayer film comprising a skin layer comprising a anhydride and/or carboxylic acid functionalized ethylene/alpha-olefin interpolymer having a melting point in the range of from 50 to 89° C., wherein the anhydride and/or carboxylic acid is present in an amount of from 0.02 to 0.3 percent by weight of the polyethylene based resin. The multilayer film further comprises a substrate layer comprising a resin selected from the group consisting of polypropylene or polyethylene terephthalate.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: September 21, 2021
    Assignee: Dow Global Technologies LLC
    Inventors: Jeffrey J. Li, Xiao B. Yun, Eng K. Ma
  • Publication number: 20210206928
    Abstract: A first oriented film comprising a first polyethylene composition which comprises: from 20 to 50 wt % of a first linear low density polyethylene polymer having a density greater than 0.925 g/cc and an 12 lower than 2 g/10min; and from 80 to 50 wt % of a second linear low density polyethylene polymer having a density lower than or equal to 0.925 g/cc and an 12 greater than or equal to 2 g/10min; wherein the first polyethylene composition has an 12 from 0.5 to 10 g/10min and a density from 0.910 to 0.940 g/cc is provided.
    Type: Application
    Filed: March 19, 2021
    Publication date: July 8, 2021
    Applicant: Dow Global Technologies LLC
    Inventors: Yijian Lin, Mehmet Demirors, Jianping Pan, Xiao B. Yun
  • Publication number: 20200079062
    Abstract: The present invention relates to a multilayer film comprising a skin layer comprising a anhydride and/or carboxylic acid functionalized ethylene/alpha-olefin interpolymer having a melting point in the range of from 50 to 89° C., wherein the anhydride and/or carboxylic acid is present in an amount of from 0.02 to 0.3 percent by weight of the polyethylene based resin. The multilayer film further comprises a substrate layer comprising a resin selected from the group consisting of polypropylene or polyethylene terephthalate.
    Type: Application
    Filed: November 15, 2019
    Publication date: March 12, 2020
    Inventors: Jeffrey J. Li, Xiao B. Yun, Eng K. Ma
  • Publication number: 20200010631
    Abstract: A first oriented film comprising a first polyethylene composition which comprises: from 20 to 50 wt % of a first linear low density polyethylene polymer having a density greater than 0.925 g/cc and an I2 lower than 2 g/10 min; and from 80 to 50 wt % of a second linear low density polyethylene polymer having a density lower than or equal to 0.925 g/cc and an I2 greater than or equal to 2 g/10 min; wherein the first polyethylene composition has an 12 from 0.5 to 10 g/10 min and a density from 0.910 to 0.940 g/cc is provided.
    Type: Application
    Filed: September 17, 2019
    Publication date: January 9, 2020
    Applicant: Dow Global Technologies LLC
    Inventors: Yijian Lin, Mehmet Demirors, Jianping Pan, Xiao B. Yun
  • Patent number: 10457787
    Abstract: A first oriented film comprising a first polyethylene composition which comprises: from 20 to 50 wt % of a first linear low density polyethylene polymer having a density greater than 0.925 g/cc and an I2 lower than 2 g/10 min; and from 80 to 50 wt % of a second linear low density polyethylene polymer having a density lower than or equal to 0.925 g/cc and an I2 greater than or equal to 2 g/10 min; wherein the first polyethylene composition has an I2 from 0.5 to 10 g/10 min and a density from 0.910 to 0.940 g/cc is provided.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: October 29, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Yijian Lin, Mehmet Demirors, Jianping Pan, Xiao B. Yun
  • Patent number: 10363700
    Abstract: The present invention discloses a process for forming a biaxially oriented film. The process includes first selecting a polyolefin resin wherein said polyolefin resin comprises a linear low density polyethylene resin characterized by having from 9 to 35 weight percent of the total weight of linear low density polyethylene resin eluting from a CEF at a temperature greater than 97.0° C.; and further characterized by having a CDR of from 33 to 80 and a Mw Ratio of from 0.15 to 0.45. Next a film is formed from the polyolefin resin selected in the first step. Finally the film formed in the second step is oriented in a sequential manner. The films produced by this process are characterized by having an ultimate elongation at least 1.5 times greater in the MD as compared to the CD and the 2% secant modulus is a least 1.25 times greater in the CD as compared to the MD.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: July 30, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Xiao B. Yun, Rongjuan Cong, Jephrey Pan, Teresa P. Karjala
  • Publication number: 20170029583
    Abstract: A first oriented film comprising a first polyethylene composition which comprises: from 20 to 50 wt % of a first linear low density polyethylene polymer having a density greater than 0.925 g/cc and an I2 lower than 2 g/10 min; and from 80 to 50 wt % of a second linear low density polyethylene polymer having a density lower than or equal to 0.925 g/cc and an I2 greater than or equal to 2 g/10 min; wherein the first polyethylene composition has an 12 from 0.5 to 10 g/10 min and a density from 0.910 to 0.940 g/cc is provided.
    Type: Application
    Filed: April 9, 2014
    Publication date: February 2, 2017
    Inventors: Yijian Lin, Mehmet Demirors, Jianping Pan, Xiao B. Yun
  • Publication number: 20150375482
    Abstract: Provided is a multilayer film comprising a skin layer comprising an anhydride and/or carboxylic acid functionalized ethylene/alpha-olefin interpolymer having a melting point in the range of from 50 to 89 ° C., wherein the anhydride and/or carboxylic acid is present in an amount of from 0.02 to 0.3 percent by weight of the polyethylene based resin. The multilayer film further comprises a substrate layer comprising a resin selected from the group consisting of polypropylene or polyethylene terephthalate.
    Type: Application
    Filed: March 18, 2013
    Publication date: December 31, 2015
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Jeffrey J. Li, Xiao B. Yun, Eng K. Ma
  • Publication number: 20140255674
    Abstract: A multi-layered shrink film comprising: at least three layers including two skin layers and at least one core layer; wherein at least one layer comprises from 10 to 100 weight percent units derived from one or more ethylene-based polymer compositions characterized by having Comonomer Distribution Constant in the range of from 75 to 220, a vinyl unsaturation of from 30 to 100 vinyls per one million carbon atoms present in the backbone of the ethylene-based polymer composition; a zero shear viscosity ratio (ZSVR) in the range from at least 2.5 to 15; a density in the range of 0.924 to 0.940 g/cm3, a melt index (I2) in the range of from 0.1 to 1 g/10 minutes, a molecular weight distribution (Mw/Mn) in the range of from 2.5 to 10, and a molecular weight distribution (Mz/Mw) in the range of from 1.
    Type: Application
    Filed: October 21, 2011
    Publication date: September 11, 2014
    Inventors: Colleen M. Tice, Teresa P. Karjala, Lei Hao, Xiao B. Yun, Chang Wu
  • Publication number: 20100260996
    Abstract: A multilayer biaxially oriented polypropylene film is disclosed which comprises at least three layers. The first layer is an outer layer comprising a first polymer which is a homopolymer polypropylene resin having a melting point of at least 155° C. The second layer is a core layer, having a melting point greater than 150° C. The core layer includes a blend comprising a second polymer which is a polypropylene homopolymer having a melting point of at least 155° C. and a third polymer having a melting point no greater than 145° C. The second polymer comprises from 20% to 80% by weight of the core layer while the third polymer comprises from 80% to 20% by weight of the core layer. The last required layer in the film is a sealant layer. The sealant layer comprises a fourth polymer having a melting point no greater than 145° C.
    Type: Application
    Filed: April 9, 2010
    Publication date: October 14, 2010
    Applicant: Dow Global Technologies Inc.
    Inventors: Yong Chen, Hongyu Chen, Xiao B. Yun, Jing Li, Morgan M. Hughes, Rajen M. Patel