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).

  • CABLE JACKETS HAVING DESIGNED MICROSTRUCTURES AND METHODS FOR MAKING CABLE JACKETS HAVING DESIGNED MICROSTRUCTURES
    Publication number: 20170278593
    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: Application
    Filed: December 3, 2015
    Publication date: September 28, 2017
    Applicant: Dow Global Technologies LLC
    Inventors: Mohamed ESSEGHIR, Wenyi HUANG, Joseph DOOLEY, Patrick Chang Dong LEE, Saswati PUJARI
  • Process for Foaming Polyolefin Compositions Using a Fluororesin/Azodicarbonamide Mixture as a Nucleating Agent
    Publication number: 20170275431
    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: November 28, 2014
    Publication date: September 28, 2017
    Inventors: Gangwei SUN, Mohamed ESSEGHIR, Chester J. KMIEC
  • CABLE JACKETS HAVING DESIGNED MICROSTRUCTURES AND METHODS FOR MAKING CABLE JACKETS HAVING DESIGNED MICROSTRUCTURES
    Publication number: 20170276891
    Abstract: Optical fiber cables (1001) comprising at least one optical fiber transmission medium (1006) and at least one elongated polymeric protective component (1002) surrounding at least a portion of the optical fiber transmission medium. The elongated polymeric protective component (1002) comprises a polymeric matrix material and a plurality of microcapillaries containing a polymeric microcapillary material, where the polymeric matrix material has a higher flexural modulus than the polymeric microcapillary material. Also disclosed are dies and methods for making such optical fiber cables and protective components.
    Type: Application
    Filed: December 3, 2015
    Publication date: September 28, 2017
    Inventors: Mohamed Esseghir, Wenyi Huang, Joseph Dooley, Patrick Chang Dong Lee
  • Process for Foaming Polyolefin Compositions Using Fluororesin/Citrate Mixture as Nucleating Agent
    Publication number: 20170267828
    Abstract: The process of foaming a polyolefin, e.g., polyethylene, composition using as a nucleator a combination of (A) a fluororesin, 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 if the first component of the mixture is an alkali metal citrate, then the second component of the mixture is not an alkali metal citrate.
    Type: Application
    Filed: November 28, 2014
    Publication date: September 21, 2017
    Inventors: Gangwei Sun, Mohamed Esseghir, XianMin Xu, Chester J. Kmiec
  • THERMAL GREASE BASED ON HYPERBRANCHED OLEFINIC FLUID
    Publication number: 20170226396
    Abstract: Disclosed is an effective thermal grease comprising a hyperbranched olefinic fluid and a thermally conductive filler. Property-modifying additives and fillers may also be included. The hyperbranched olefinic fluid is selected to have an average of at least 1.5 methine carbons per oligomer molecule and at least 40 methine carbons per one thousand total carbons. The thermal grease exhibits a flash point of 180° C. or higher, a pour point of 0° C. or lower, and a kinematic viscosity at 40° C. of no more than 200 cSt (0.0002 m 2/s). The composition may offer improved thermal conductivity, reduced tendency to migrate, and lower cost when compared with many other thermal greases, including silicone-based thermal greases.
    Type: Application
    Filed: September 22, 2014
    Publication date: August 10, 2017
    Applicant: Dow Global Technologies LLC
    Inventors: Yunfeng Yang, Hongyu Chen, Brad C. Bailey, Mohamed Esseghir, Suh Joon Han
  • OLEFIN BLOCK COMPOSITE THERMALLY CONDUCTIVE MATERIALS
    Publication number: 20170227304
    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: Application
    Filed: October 14, 2015
    Publication date: August 10, 2017
    Inventors: Mohamed Esseghir, Bharat I. Chaudhary, Jeffrey M. Cogen, Gary R. Marchand
  • Polymeric compositions with silicone and fatty acid amide slip agent
    Patent number: 9701859
    Abstract: Polymeric compositions having a slip agent comprising a silicone and a fatty acid amide. Such polymeric compositions can exhibit lower coefficients of friction when compared to polymeric compositions containing either silicone or fatty acid amide alone. Such polymeric compositions are suitable for use in various articles of manufacture, including, for example, wire and cable jackets.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: July 11, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Buo Chen, Mohamed Esseghir, Jeffrey M. Cogen, Chester J. Kmiec, Anny L. Flory, Saswati Pujari
  • Flexible Elastic Rubber Compounds with Improved Dielectric and Tear Strength for Cold Shrink Splices and Preparation Method Thereof
    Publication number: 20170158847
    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: Application
    Filed: June 27, 2014
    Publication date: June 8, 2017
    Inventors: Haiyang Yu, Yanli Huo, Mohamed Esseghir, Saurav Sengupta, Jeffrey Cogen
  • Optical fiber cable components
    Patent number: 9670345
    Abstract: Optical cable components fabricated from an extrudable polymeric blend of crystalline polypropylene modified with one or more impact-modifying polymers. The impact-modifying polymers are crosslinked and can be selected from a polyolefin elastomer, an olefin multi-block interpolymer, an olefin block composite, and combinations thereof. Optionally, the polymeric blend can further comprise a compatibilizer. The polymeric blend may also contain one or more additives. The optical fiber cable components can be selected from buffer tubes, core tubes, and slotted core tubes.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: June 6, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Mohamed Esseghir, Gangwei Sun, Jeffrey M. Cogen, Gary R. Marchand
  • Optical fiber cable components
    Patent number: 9663645
    Abstract: Optical cable components fabricated from an extrudable polymeric blend of crystalline polypropylene modified with one or more impact-modifying polymers. The impact-modifying polymers are selected from an olefin multi-block interpolymer, an olefin block composite, and combinations thereof. Optionally, the polymeric blend can further comprise an elastomer other than the impact-modifying polymer. The polymeric blend may also contain one or more additives. The optical fiber cable components can be selected from buffer tubes, core tubes, and slotted core tubes.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: May 30, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Mohamed Esseghir, Gangwei Sun, Bharat I. Chaudhary, Chester J. Kmiec, Gary R. Marchand, Yushan Hu
  • In-Situ Compatibilization of Silicone Rubber/Polyolefin Elastomer Blends by Forming Ionomers for Cold Shrink Splice and Preparation Method Thereof
    Publication number: 20170137624
    Abstract: A cold shrink article made from a composition comprising (A) a silicone rubber; (B) an ethylene/?-olefin interpolymer; (C) a filler; and (D) 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: Application
    Filed: June 27, 2014
    Publication date: May 18, 2017
    Inventors: Haiyang Yu, Yanli Huo, Mohamed Esseghir, Saurav Sengupta, Jeffrey Cogen
  • Cold Shrink Article for Electrical Device
    Publication number: 20170133121
    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: Application
    Filed: June 27, 2014
    Publication date: May 11, 2017
    Inventors: Haiyang YU, Yanli HUO, Mohamed ESSEGHIR, Saurav SENGUPTA, Jeffrey COGEN
  • Electrically conductive, mesophase-separated olefin multiblock copolymer compositions
    Patent number: 9607728
    Abstract: Free radically crosslinked, electrically conductive compositions exhibiting a highly stable volume resistivity comprise an olefin multiblock copolymer (OBC) having a high, e.g., greater than 20 mole percent comonomer content, e.g., butylene or octene, and carbon black. These compositions exhibit a highly stable volume resistivity relative to a composition similar in essentially all aspects save that the high comonomer OBC is replaced with a low comonomer OBC of similar density and melt index.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: March 28, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Mohamed Esseghir, Gary R. Marchand
  • Optical fiber cable components
    Patent number: 9598565
    Abstract: Polymeric compositions comprising a high-density polyethylene, a crystalline polypropylene, and an olefin block composite. Optical cable components fabricated from an extrudable polymeric composition of high-density polyethylene, a crystalline polypropylene, and an olefin block composite. Optionally, the polymeric composition can further comprise a nucleating agent. The polymeric composition may also contain one or more additives. The optical fiber cable components can be selected from buffer tubes, core tubes, and slotted core tubes, among others.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: March 21, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Karl M. Seven, Chester J. Kmiec, Bharat I. Chaudhary, Mohamed Esseghir
  • Thermoplastic, semiconductive compositions
    Patent number: 9595365
    Abstract: Crosslinkable, semiconductive, peroxide-free thermoplastic compositions having a stable volume resistivity of less than 1000 ohm-cm comprise, based on the weight of the composition: A. 60-90 wt % silane-functionalized polyethylene; B. 0.5-20 wt % organopolysiloxane containing two or more functional end groups; C. 10-20 wt % high conductivity carbon black, e.g., a carbon black having an average particle size of 50 nm or less, a surface area (BET) of 700-1250 m2/g, and an oil absorption (DBP) of 300-500 ml/100 g; and D. 0.05-0.2 wt % crosslinking catalyst.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: March 14, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Mohamed Esseghir, Jeffrey M. Cogen, Saurav S. Sengupta, Neil W. Dunchus
  • OPTICAL FIBER CABLE COMPONENTS
    Publication number: 20160289433
    Abstract: Polymeric compositions comprising a high-density polyethylene, a crystalline polypropylene, and an olefin block composite. Optical cable components fabricated from an extrudable polymeric composition of high-density polyethylene, a crystalline polypropylene, and an olefin block composite. Optionally, the polymeric composition can further comprise a nucleating agent. The polymeric composition may also contain one or more additives. The optical fiber cable components can be selected from buffer tubes, core tubes, and slotted core tubes, among others.
    Type: Application
    Filed: November 12, 2014
    Publication date: October 6, 2016
    Inventors: Karl M. Seven, Chester J. Kmiec, Bharat I. Chaudhary, Mohamed Esseghir
  • OPTICAL FIBER CABLE COMPONENTS
    Publication number: 20160215129
    Abstract: Optical cable components fabricated from an extrudable polymeric blend of crystalline polypropylene modified with one or more impact-modifying polymers. The impact-modifying polymers are selected from an olefin multi-block interpolymer, an olefin block composite, and combinations thereof. Optionally, the polymeric blend can further comprise an elastomer other than the impact-modifying polymer. The polymeric blend may also contain one or more additives. The optical fiber cable components can be selected from buffer tubes, core tubes, and slotted core tubes.
    Type: Application
    Filed: October 18, 2013
    Publication date: July 28, 2016
    Inventors: Mohamed Esseghir, Gangwei Sun, Bharat I. Chaudhary, Chester J. Kmiec, Gary R. Marchand, Yushan Hu
  • OPTICAL FIBER CABLE COMPONENTS
    Publication number: 20160215130
    Abstract: Optical cable components fabricated from an extrudable polymeric blend of crystalline polypropylene modified with one or more impact-modifying polymers. The impact-modifying polymers are crosslinked and can be selected from a polyolefin elastomer, an olefin multi-block interpolymer, an olefin block composite, and combinations thereof. Optionally, the polymeric blend can further comprise a compatibilizer. The polymeric blend may also contain one or more additives. The optical fiber cable components can be selected from buffer tubes, core tubes, and slotted core tubes.
    Type: Application
    Filed: October 18, 2013
    Publication date: July 28, 2016
    Inventors: Mohamed Esseghir, Gangwei Sun, Jeffrey M. Cogen, Gary R. Marchand
  • A Composition, Articles Made Therefrom, and Method of Making the Articles
    Publication number: 20160200909
    Abstract: A crosslinked polyethylene composition formed through reaction of (A) functionalized polyethlyene having vinyltrialkoxysilanol grafted functionalities; and (B) hydroxyl-terminated silicone, wherein the crosslinked polyethylene comprises —C—C—Si—[O—Si(C)2]m—O—Si—C—C— crosslinkages is provided; and (C) a small amount of catalyst. Articles made from the crosslinked polyethtylene and methods of making such articles are also provided.
    Type: Application
    Filed: November 19, 2013
    Publication date: July 14, 2016
    Inventors: Dane Chang, Carl F. Baker, Zhiqiang Zhou, Suzanne G. Guerra, Jeffrey M. Cogen, Bharat I. Chaudhary, Mohamed Esseghir, Saurav S. Sengupta
  • Process for producing crosslinked, melt-shaped articles
    Patent number: 9387625
    Abstract: Crosslinked, melt-shaped articles are manufactured by a process that does not require the use of post-shaping external heat or moisture, the process comprising the steps of: A. Forming a crosslinkable mixture of a 1. Organopolysiloxane containing one or more functional end groups; and 2. Silane-grafted or silane-copolymerized polyolefin; and B. Melt-shaping and partially crosslinking the mixture; and C. Cooling and continuing crosslinking the melt-shaped article. Crosslinking is promoted by the addition of a catalyst to the mixture before or during melt-shaping or to the melt-shaped article.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: July 12, 2016
    Assignee: Union Carbide Chemicals & Plastics Technology LLC
    Inventors: Mohamed Esseghir, Jeffrey M. Cogen, Saurav S. Sengupta