Patents by Inventor Yijian Lin

Yijian Lin 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: 11939712
    Abstract: A meltblown nonwoven formed from a bicomponent fiber, wherein: the bicomponent fiber has a first region and a second region, the first region is formed from a first composition comprising at least 75 wt. % of a polypropylene; the second region is formed from a second composition comprising at least 75 wt. % of an ethylene/alpha-olefin interpolymer.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: March 26, 2024
    Assignee: Dow Global Technologies, LLC
    Inventors: Aleksandar Stoiljkovic, Eduardo Alvarez, Yijian Lin
  • Patent number: 11903531
    Abstract: A cleansing wipe may be formed from a nonwoven and includes a first ethylene/alpha-olefin interpolymer and a second ethylene/alpha-olefin interpolymer. The cleansing wipe may also have a SaMbSc configuration, wherein the M, meltblown layer, is formed from the first ethylene/alpha-olefin interpolymer and the second ethylene/alpha-olefin interpolymer. The cleansing wipe may be formed a nonwoven comprising bicomponent fibers that incorporate the first ethylene/alpha-olefin interpolymer and the second ethylene/alpha-olefin interpolymer.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: February 20, 2024
    Assignee: Dow Global Technologies LLC
    Inventors: Xin Huang, Shijie Ren, Yijian Lin, Jozef J. I. Van Dun
  • Publication number: 20230272567
    Abstract: Provided are bicomponent fibers with improved curvature. The bicomponent fiber comprises a first region and a second region. The first region comprises a first polyethylene composition and second region comprises a second polyethylene composition, wherein the first polyethylene composition has a crystallization temperature (Tc) greater than a crystallization temperature (Tc) of the second polyethylene composition. The bicomponent fiber can be used to form a nonwoven.
    Type: Application
    Filed: May 5, 2021
    Publication date: August 31, 2023
    Inventors: Akanksha Garg, Yijian Lin, Aleksandar Stoiljkovic, Jozef J.I. Van Dun, Fabricio Arteaga Larios, Rajesh P. Paradkar
  • Publication number: 20230257919
    Abstract: Provided are bicomponent fibers. The bicomponent fiber comprises a first region and a second region. The first region comprises a first ethylene/alpha-olefin interpolymer, and the second region comprises a second ethylene/alpha-olefin interpolymer. The first ethylene/alpha-olefin interpolymer has a highest peak melting temperature (Tm) less than 130° C. and at least 3.5° C. greater than a highest peak melting temperature of the second ethylene/alpha-olefin interpolymer. The bicomponent fibers can be used for forming nonwovens that in aspect have improved tensile strength, elongation at break, and/or abrasion resistance.
    Type: Application
    Filed: May 6, 2021
    Publication date: August 17, 2023
    Inventors: Yijian Lin, Lanhe Zhang, Ronald Wevers, Fabricio Arteaga Larios
  • Publication number: 20230257920
    Abstract: Provided are meltblown nonwovens, and articles thereof. The meltblown nonwovens can be formed form a composition comprising an ethylene/alpha-olefin interpolymer and specific additive. The meltblown nonwovens according to embodiments disclosed herein exhibit a high volume resistivity and can be used in filtration applications.
    Type: Application
    Filed: August 21, 2020
    Publication date: August 17, 2023
    Inventors: Xin Huang, Yunfeng Yang, Shijie Ren, Yijian Lin, Haiyang Yu, Jingya Li
  • Publication number: 20230235487
    Abstract: Provided are bicomponent fibers with improved curvature. The bicomponent fibers comprise a first polymer region or first region and a second polymer region or second region. The first region according to embodiments of the present disclosure comprises an ethylene/alpha-olefin interpolymer and has a light scattering cumulative detector fraction (CDFLS) of greater than 0.1200, wherein the CDFLS is computed by measuring the area fraction of a low angle laser light scattering (LALLS) detector chromatogram greater than, or equal to, 1,000,000 g/mol molecular weight using Gel Permeation Chromatography (GPC). The second region comprises a polyester. The bicomponent fibers can be used for forming nonwovens.
    Type: Application
    Filed: May 5, 2021
    Publication date: July 27, 2023
    Inventors: Akanksha Garg, Yijian Lin, Aleksandar Stoiljkovic, John P. O'Brien, Jozef J. I. Van Dun, Fabricio Arteaga Larios
  • Patent number: 11685798
    Abstract: In various embodiments, a polyethylene formulation has a density of greater than 0.940 g/cm3 when measured according to ASTM D792, and a high load melt index (I21) of 1.0 g/10 min to 10.0 g/10 min when measured according to ASTM D1238 at 190° C. and a 21.6 kg load. Moreover, the polyethylene formulation has a peak molecular weight (Mp(GPC)) of less than 50,000 g/mol, a number average molecular weight (Mn(GPC)) of less than 30,000 g/mol, and a weight fraction (w1) of molecular weight (MW) less than 10,000 g/mol of less than or equal to 10.5 wt %, as determined by Gel Permeation Chromatography (GPC). Articles made from the polyethylene formulation, such as articles made by blow molding processes are also provided.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: June 27, 2023
    Assignee: Dow Global Technologies LLC
    Inventors: Peter S. Martin, Yijian Lin, Angela I. Padilla-Acevedo, Roger L. Kuhlman, Shadid Askar, Mridula Kapur, Todd A. Hogan, Joel D. Wieliczko, Chuan C. He
  • Patent number: 11680119
    Abstract: Embodiments of a method of producing a multimodal ethylene-based polymer comprising a first catalyst and a second catalyst in a first solution polymerization reactor and a third catalyst in a second solution polymerization reactor.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: June 20, 2023
    Assignee: Dow Global Technologies LLC
    Inventors: Daniela Ferrari, Alec Y. Wang, Pradeep Jain, Yijian Lin
  • Patent number: 11680120
    Abstract: Embodiments of a method for producing a multimodal ethylene-based polymer having a first, second, and third ethylene-based component, wherein the multimodal ethylene based polymer results when ethylene monomer, at least one C3-C12 comonomer, solvent, and optionally hydrogen pass through a first solution, and subsequently, a second solution polymerization reactor. The first solution polymerization reactor or the second solution polymerization reactor receives both a first catalyst and a second catalyst, and a third catalyst passes through either the first or second solution polymerization reactors where the first and second catalysts are not already present. Each ethylene-based component is a polymerized reaction product of ethylene monomer and C3-C12 comonomer catalyzed by one of the three catalysts.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: June 20, 2023
    Assignee: Dow Global Technologies LLC
    Inventors: Alec Y. Wang, Johnathan E. DeLorbe, Joshua B. Gaubert, Sarat Munjal, Mehmet Demirors, Yijian Lin
  • Publication number: 20230106941
    Abstract: Polyethylene formulations and articles produced therefrom, comprise a multimodal high density polyethylene (HDPE) composition, and 0.1 ppm to 300 ppm of a nucleating agent, wherein the multimodal HDPE composition comprises a density of 0.940 g/cm3 to 0.970 g/cm3 when measured according to ASTM D792, and a melt index (I2) of 0.1 g/10 min. to 10.0 g/10 min. when measured according to ASTM D1238 at 190° C. and a 2.16 kg load, and wherein the multimodal HDPE composition comprises an infrared cumulative detector fraction (CDFIR) of greater than 0.27 and an infrared cumulative detector fraction to light scattering cumulative detector fraction ratio (CDFIR/CDFLS) from 0.7 to 2.0.
    Type: Application
    Filed: October 6, 2022
    Publication date: April 6, 2023
    Applicant: Dow Global Technologies LLC
    Inventors: Yijian Lin, John L. Sugden, Mridula Babli Kapur, David T. Gillespie
  • Patent number: 11603452
    Abstract: Embodiments of polymer compositions and articles comprising such compositions contain at least one multimodal ethylene-based polymer having at least three ethylene-based components, wherein the multimodal ethylene-based polymer exhibits improved toughness.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: March 14, 2023
    Assignee: Dow Global Technologies LLC
    Inventors: Carl N. Iverson, Arnaldo T. Lorenzo, Yijian Lin, Mehmet Demirors, Didem Oner-Deliormanli, David T. Gillespie
  • Publication number: 20230036612
    Abstract: An elastic film-forming thermoplastic elastomer resin composition for forming an elastic film including: (a) at least one thermoplastic elastomer such as an olefinic block copolymer; and (b) at least one specific nucleation agent; wherein the resulting blended resin composition of components (a) and (b) improves the elastic performance (e.g., physical properties of elasticity such as retractive force, hysteresis, and immediate set) of a cast film made from the above resin blend composition; and an elastic film made from the above resin blend composition.
    Type: Application
    Filed: November 4, 2020
    Publication date: February 2, 2023
    Inventors: Jong Young Lee, Yijian Lin, Kyle D. Anderson, Aleksandar Stoiljkovic, Arnaldo T. Lorenzo, Stacy L. Pesek, Ronald Wevers
  • Patent number: 11555084
    Abstract: Embodiments of methods for producing a trimodal polymer in a solution polymerization process comprise three solution polymerization reactors organized in parallel or in series.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: January 17, 2023
    Assignee: Dow Global Technologies LLC
    Inventors: Sarat Munjal, Brian W. Kolthammer, Mehmet Demirors, Michael D. Turner, Joshua B. Gaubert, Yijian Lin
  • Publication number: 20220408985
    Abstract: A cleansing wipe may be formed from a nonwoven and includes a first ethylene/alpha-olefin interpolymer and a second ethylene/alpha-olefin interpolymer. The cleansing wipe may also have a SaMbSc configuration, wherein the M, meltblown layer, is formed from the first ethylene/alpha-olefin interpolymer and the second ethylene/alpha-olefin interpolymer. The cleansing wipe may be formed a nonwoven comprising bicomponent fibers that incorporate the first ethylene/alpha-olefin interpolymer and the second ethylene/alpha-olefin interpolymer.
    Type: Application
    Filed: December 20, 2019
    Publication date: December 29, 2022
    Inventors: Xin Huang, Shijie Ren, Yijian Lin, Jozef J. I. Van Dun
  • Patent number: 11492467
    Abstract: Polyethylene formulations and articles produced therefrom, comprise a multimodal high density polyethylene (HDPE) composition, and 0.1 ppm to 300 ppm of a nucleating agent, wherein the multimodal HDPE composition comprises a density of 0.940 g/cm3 to 0.970 g/cm3 when measured according to ASTM D792, and a melt index (I2) of 0.1 g/10 min. to 10.0 g/10 min. when measured according to ASTM D1238 at 190° C. and a 2.16 kg load, and wherein the multimodal HDPE composition comprises an infrared cumulative detector fraction (CDFIR) of greater than 0.27 and an infrared cumulative detector fraction to light scattering cumulative detector fraction ratio (CDFIR/CDFLS) from 0.7 to 2.0.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: November 8, 2022
    Assignee: Dow Global Technologies LLC
    Inventors: Yijian Lin, John L. Sugden, Mridula Kapur, David T. Gillespie
  • Publication number: 20220251748
    Abstract: A meltblown nonwoven formed from a bicomponent fiber, wherein: the bicomponent fiber has a first region and a second region, the first region is formed from a first composition comprising at least 75 wt. % of a polypropylene; the second region is formed from a second composition comprising at least 75 wt. % of an ethylene/alpha-olefin interpolymer.
    Type: Application
    Filed: July 20, 2020
    Publication date: August 11, 2022
    Inventors: Aleksandar Stoiljkovic, Eduardo Alvarez-acedo, Yijian Lin
  • Publication number: 20220228297
    Abstract: A process comprising forming fibers having at least a first region and a second region wherein the first region comprises an ethylene/alpha olefin interpolymer composition characterized by: density in the range of 0.930 to 0.965 g/cm3; melt index (I2) in the range of from 10 to 60 g/10 minutes; molecular weight distribution in the range of from 1.5 to 2.6; tan delta at 1 radian/second of at least 45; a low temperature peak and a high temperature peak on an elution profile via improved comonomer composition distribution (ICCD) procedure; and full width at half maximum of the high temperature peak is less than 6.0° C. and stretching the fibers to an elongation of at least 20% thereby increasing curl of the fiber. The process may further include forming a non-woven from the fibers and the stretching of the fibers may occur before or after forming of the non-woven.
    Type: Application
    Filed: November 20, 2019
    Publication date: July 21, 2022
    Inventors: Akanksha Garg, Yinglong Chen, Yijian Lin, Sanjib Biswas, Pavan Kumar Valavala, Fabricio Arteaga Larios, Jill Martin
  • Patent number: 11384229
    Abstract: Embodiments of polymer compositions and articles comprising such compositions containing at least one LDPE and at least one multimodal ethylene-based polymer having at least three ethylene-based components.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: July 12, 2022
    Assignee: Dow Global Technologies LLC
    Inventors: Mehmet Demirors, Yijian Lin, Didem Oner-Deliormanli, Arnaldo T. Lorenzo, David T. Gillespie, Carl N. Iverson
  • Publication number: 20220186415
    Abstract: In accordance with one embodiment of the present disclosure, a nonwoven web may be manufactured by a process that includes forming a bicomponent fiber and forming the bicomponent fiber into the nonwoven web. The bicomponent fiber may comprise one or more primary polymer regions and two or more secondary polymer regions. The primary polymer regions may comprise polyethylene. The secondary polymer regions may comprise polypropylene, polyester, or polyamide. The primary polymer regions may comprise at least 2.5 wt. % of polypropylene, polyester, or polyamide, or the secondary polymer regions may comprise at least 2.5 wt. % of polyethylene, or both.
    Type: Application
    Filed: April 14, 2020
    Publication date: June 16, 2022
    Applicant: Dow Global Technologies LLC
    Inventors: Fabricio Arteaga Larios, Lanhe Zhang, Yijian Lin
  • Publication number: 20220176599
    Abstract: An injection molded cap or closure having a weld line, wherein the injection molded cap or closure is formed from an ethylene-based resin comprising a high molecular weight component and a low molecular weight component.
    Type: Application
    Filed: May 29, 2020
    Publication date: June 9, 2022
    Inventors: Keran Lu, Yijian Lin, Mridula Kapur, Tian Lan, Stephanie M. Whited, John L. Sugden, Siddharth Ram Athreya