Patents by Inventor Mohamed Esseghir

Mohamed Esseghir 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: 10654997
    Abstract: Buffer tubes made from a composition comprising: (A) polypropylene, (B) high density polyethylene (HDPE), (C) propylene-ethylene copolymer (PE copolymer), (D) olefin block composite, and (E) optionally, one or more of a nucleating agent, filler and additive, exhibit reduced stress whitening as compared to buffer tubes made from conventional polypropylene compositions.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: May 19, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Mohamed Esseghir, Gangwei Sun, Yonghua Gong
  • Publication number: 20200148868
    Abstract: A process of foaming a polyolefin, e.g., polyethylene, composition using as a nucleator a combination of (A) azodicarbonamide, and (B) a mixture of (1) a first component consisting of at least one of citric acid and an alkali metal citrate, and (2) a second component consisting of at least one of an alkali metal citrate, a di-alkali metal hydrogen citrate, an alkali metal dihydrogen citrate and an alkali metal bicarbonate, with the proviso that the mixture is not solely composed of alkali metal citrate.
    Type: Application
    Filed: January 14, 2020
    Publication date: May 14, 2020
    Inventors: Gangwei Sun, Mohamed Esseghir, Xianmin Xu, Chester J. Kmiec
  • Patent number: 10648750
    Abstract: Thermally conductive materials comprising an olefin block composite and a thermally conductive filler, where the thermally conductive filler is present in an amount sufficient to increase the thermal conductivity of the olefin block composite relative to the olefin block composite in its neat state. Such thermally conductive materials can be used in various articles of manufacture, such as a thermal interface material or a molded heat dissipation component.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: May 12, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Mohamed Esseghir, Bharat I. Chaudhary, Jeffrey M. Cogen, Gary R. Marchand
  • Publication number: 20200135363
    Abstract: Protective jackets for cable comprise: (A) an exterior layer (1) free of a pest repellant, and (2) having external and internal facial surfaces; (B) an inner layer (1) having a Shore D hardness of equal to or greater than (?) 63, (2) comprising a pest repellant, and (3) having two facial surfaces; and (C) optionally, a tie layer in contact with the internal facial surface of the exterior layer and a facial surface of the inner layer.
    Type: Application
    Filed: June 27, 2018
    Publication date: April 30, 2020
    Inventors: Mohamed Esseghir, Arne Ulbrich, William J. Harris
  • Publication number: 20200123356
    Abstract: A polyolefin composition is foamed by a process in which a nucleator is used, and the nucleator comprises 80% or more of unagglomerated fluororesin particles and/or agglomerates of fluororesin particles in which both the unagglomerated particles and the agglomerates are less than 1 ?m in size.
    Type: Application
    Filed: December 18, 2019
    Publication date: April 23, 2020
    Inventors: Gangwei Sun, Mohamed Esseghir, Chester J. Kmiec, Lei Ying, Yabin Sun, Xianmin Xu
  • Publication number: 20200087494
    Abstract: The present disclosure provides a process. In an embodiment, the process includes blending a broad molecular weight distribution (MWD) ethylene-based polymer having an 121/12 ratio from 55 to 85 with a narrow MWD ethylene-based polymer having an 121/12 ratio from 20 to 50. The process includes forming a blend component comprising from 20 wt % to 45 wt % of the broad MWD ethylene-based polymer, from 80 wt % to 55 wt % of the narrow MWD ethylene-based polymer, and optional carbon black. The blend component has a density from 0.925 g/cc to 0.955 g/cc and an 121/12 ratio from 30 to 55. The process includes extruding the blend component over a conductor at a rate greater than 1.02 m/s, and forming a conductor jacket having a surface smoothness from 30 ?-inch to 80 ?-inch.
    Type: Application
    Filed: December 18, 2017
    Publication date: March 19, 2020
    Inventors: Anny L. Flory, Mohamed Esseghir, Chester J. Kmiec, Rajen M. Patel, Karl M. Seven
  • Patent number: 10577489
    Abstract: A process of foaming a polyolefin, e.g., polyethylene, composition using as a nucleator a combination of (A) azodicarbonamide, and (B) a mixture of (1) a first component consisting of at least one of citric acid and an alkali metal citrate, and (2) a second component consisting of at least one of an alkali metal citrate, a di-alkali metal hydrogen citrate, an alkali metal dihydrogen citrate and an alkali metal bicarbonate, with the proviso that the mixture is not solely composed of alkali metal citrate.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: March 3, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Gangwei Sun, Mohamed Esseghir, Xianmin Xu, Chester J. Kmiec
  • Patent number: 10573429
    Abstract: Coated conductors comprising a conductor and elongated polymeric coatings at least partially surrounding the conductor, where the elongated polymeric coatings comprise a polymeric matrix material and a plurality of microcapillaries defining individual, discrete void spaces. Such coated conductors are lighter in weight relative to coated conductors having polymeric coatings without microcapillaries. Also disclosed are dies and methods for making such coated conductors.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: February 25, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Mohamed Esseghir, Wenyi Huang, Joseph Dooley, Patrick Chang Dong Lee, Saswati Pujari
  • Patent number: 10563147
    Abstract: Flooding compounds for telecommunications cables. Such flooding compounds contain a polyolefin elastomer and a hydrocarbon oil. The polyolefin elastomer has a crystallinity ranging from 10 less than 50 weight percent and a dynamic viscosity of 50,000 centipoise or less at 177° C. The hydrocarbon oil has a kinematic viscosity of 200 centistokes or less at 40° C.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: February 18, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Yichi Zhang, Mohamed Esseghir, Chester J. Kmiec, Yi Jin, Selim Yalvac
  • Publication number: 20200041742
    Abstract: The present disclosure provides a coated conductor. The coated conductor includes a conductor and a coating on the conductor. The coating includes (i) an annular wall composed of a polymeric material, the annular wall surrounding at least a portion of the conductor; (ii) a plurality of channels extending along a length of an outer surface of the annular wall; and (iii) a slip material located in the channels, the slip material forming a capillary structure in the channels, and the capillary structures protruding radially outward from the annular wall.
    Type: Application
    Filed: January 17, 2018
    Publication date: February 6, 2020
    Inventors: Mohamed Esseghir, Chester J. Kmiec, Wenyi Huang, Thomas J. Parsons
  • Patent number: 10550249
    Abstract: A polyolefin composition is foamed by a process in which a nucleator is used, and the nucleator comprises 80% or more of unagglomerated fluororesin particles and/or agglomerates of fluororesin particles in which both the unagglomerated particles and the agglomerates are less than 1 ?m in size.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: February 4, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Gangwei Sun, Mohamed Esseghir, Chester J. Kmiec, Lei Ying, Yabin Sun, XianMin Xu
  • Publication number: 20200012061
    Abstract: The present disclosure provides an optical cable. In an embodiment, the optical cable includes an elongated member comprising a matrix material and a plurality of channels extending through the matrix material. The optical cable also includes at least one optical fiber extending through at least one channel.
    Type: Application
    Filed: March 16, 2018
    Publication date: January 9, 2020
    Inventors: Chester Kmiec, Mohamed Esseghir, Wenyi Huang
  • Patent number: 10502913
    Abstract: Polymeric compositions comprising a polybutylene terephthalate, an ethylene-based polymer, and a maleated ethylene-based polymer. Optical cable components fabricated from the polymeric composition. Optionally, the polymeric composition can further comprise one or more additives, such as a filler. The optical fiber cable components can be selected from buffer tubes, core tubes, and slotted core tubes, among others.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: December 10, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: William J. Harris, Mohamed Esseghir, Gangwei Sun
  • Publication number: 20190352482
    Abstract: The present disclosure provides a foamable composition containing (A) a high density polyethylene (HDPE); (B) a low density polyethylene (LDPE); (C) a peroxide-modified HDPE; and (D) a nucleator. The present disclosure also provides a process for making a foam composition. Additionally, the present disclosure provides a foam formed from a foamable composition, and a cable with an insulation layer containing the foam.
    Type: Application
    Filed: February 7, 2017
    Publication date: November 21, 2019
    Inventors: Jiawen Xiong, Gangwei Sun, Mohamed Esseghir, Hongyu Chen, Jeffrey M. Cogen, Yi Zhang
  • Publication number: 20190345304
    Abstract: The process of foaming a polyolefin, e.g., polyethylene, composition using as a nucleator a combination an azodicarbonamide (ADCA) and a fluororesin at a ADCA:fluororesin weight ratio of 60:40 to 20:80. The synergic effect between these two nucleating agents results in a higher nuclei density and a foamed product with a smaller cell size as compared to processes using and products produced by the use of neat PTFE or neat ADCA alone as the nucleating agent.
    Type: Application
    Filed: July 26, 2019
    Publication date: November 14, 2019
    Inventors: Gangwei SUN, Mohamed ESSEGHIR, Chester J. KMIEC
  • Publication number: 20190339473
    Abstract: The present disclosure provides a conduit (10). The conduit (10) includes (i) an annular wall (66) composed of a polymeric material, the annular wall (66) defining an annular passageway; (ii) a plurality of channels (68) extending along a length of an inner surface (62) of the annular wall (66); and (iii) a slip material located in the channels (68), the slip material forming a capillary structure (70) in the channels (68), and the capillary structures (70) protruding radially inward from the annular wall (66).
    Type: Application
    Filed: January 17, 2018
    Publication date: November 7, 2019
    Inventors: Mohamed Esseghir, Chester J. Kmiec, Wenyi Huang, Thomas J. Parsons
  • Patent number: 10453586
    Abstract: A cold shrink article comprising a shaped, stretched and cured composition comprising (i) a blend of silane-grafted ethylene-?-olefin elastomer and a hydroxyl-terminated polyorganosiloxane, (ii) a vinyl-terminated silicone rubber, and (iii) an ethylene-?-olefin elastomer.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: October 22, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Haiyang Yu, Yanli Huo, Mohamed Esseghir, Saurav S. Sengupta, Jeffrey M. Cogen
  • Patent number: 10414892
    Abstract: The process of foaming a polyolefin, e.g., polyethylene, composition using as a nucleator a combination an azodicarbonamide (ADCA) and a fluororesin at a ADCA: fluororesin weight ratio of 60:40 to 20:80. The synergic effect between these two nucleating agents results in a higher nuclei density and a foamed product with a smaller cell size as compared to processes using and products produced by the use of neat PTFE or neat ADCA alone as the nucleating agent.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: September 17, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Gangwei Sun, Mohamed Esseghir, Chester J. Kmiec
  • Patent number: 10407567
    Abstract: Flooding compounds for telecommunications cables. Such flooding compounds contain a polymeric filler and a branched olefinic fluid. The branched olefinic fluid has an average of at least 1.5 methine carbons per oligomer molecule and at least 40 methine carbons per one thousand total carbons. Additionally, the average number of carbons per molecule in the branched olefinic fluid is from 25 to 200.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: September 10, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Mohamed Esseghir, Yichi Zhang, Brad C. Bailey, Yi Jin, Selim Yalvac
  • Patent number: 10407568
    Abstract: A cold shrink article made from a composition comprising (A) an ethylene/?-olefin interpolymer; (B) a filler; and (C) an ?,?-unsaturated carboxylic acid. The composition may optionally include additives selected from the group consisting of plasticizer, peroxide curing agent, antioxidant, process additives, flame retardant and combinations thereof.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: September 10, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Haiyang Yu, Yanli Huo, Mohamed Esseghir, Saurav S. Sengupta, Jeffrey M. Cogen