Patents by Inventor Mark Gary Weinberg

Mark Gary Weinberg 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).

  • Publication number: 20210276280
    Abstract: Voided carbon fiber tapes comprising from 18K to 125K carbon fibers, a thermoplastic resin having a viscosity of about 10 to about 150 Pa┬Ěs, at least 3 void areas, a fiber fraction ranging from about 35 to 70 percent, a void volume ranging from about 2 to about 50 percent, and at least 10 percent wetted carbon fibers may be used to prepare consolidated thermoplastic composites which exhibit flexural strengths greater than or equal to 75 percent of the theoretical flexural strength.
    Type: Application
    Filed: February 23, 2018
    Publication date: September 9, 2021
    Inventors: Bryan Benedict Sauer, Zachary R. Dillworth, Mark Gary Weinberg, Jacob G. Dickinson
  • Patent number: 9073125
    Abstract: Chitosan films and laminates made from the films are provided. The films and laminates can be used to make a variety of finished articles that can be used to provide protection from hazardous chemical and biological agents.
    Type: Grant
    Filed: November 7, 2006
    Date of Patent: July 7, 2015
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Edward George Howard, Jr., Ralph Birchard Lloyd, Ronald James McKinney, Bryan Benedict Sauer, Mark Gary Weinberg
  • Publication number: 20150166770
    Abstract: The present invention is directed toward a flame retardant article comprising a polyolefin, an activatable flame retardant and an optional flame retardant activator wherein the flame retardant performance of the flame retardant article is at least about 1% higher on the limiting oxygen index (LOI) scale after activation treatment than before activation treatment as measured by LOI ASTM D2863. The flame retardant article can be made into a building substrate, garment, banner, light reflector and cover.
    Type: Application
    Filed: December 5, 2014
    Publication date: June 18, 2015
    Inventors: LAKSHMI KRISHNAMURTHY, BRIAN D. MATHER, MARK GARY WEINBERG
  • Patent number: 8883893
    Abstract: The present invention relates to a flame retardant plexifilamentary film-fibril strand comprising at least one polyolefin and at least one flame retardant selected from the group consisting of: phosphate esters, phosphonate esters, phosphinate esters, polyphosphazines, nitrogen-containing polyphosphates, hindered amines and mixtures thereof. The present invention also relates to flame retardant sheet made from the flame retardant plexifilamentary film-fibril strands. The sheet can be made into a flame retardant building substrate, garment, banner, light reflector and cover.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: November 11, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Sabine Gabriel, Lakshmi Krishnamurthy, Mieczyslaw (Michel) Stachnik, Mark Gary Weinberg
  • Publication number: 20130109791
    Abstract: The present invention relates to a flame retardant plexifilamentary film-fibril strand comprising at least one polyolefin and at least one flame retardant selected from the group consisting of: phosphate esters, phosphonate esters, phosphinate esters, polyphosphazines, nitrogen-containing polyphosphates, hindered amines and mixtures thereof. The present invention also relates to flame retardant sheet made from the flame retardant plexifilamentary film-fibril strands. The sheet can be made into a flame retardant building substrate, garment, banner, light reflector and cover.
    Type: Application
    Filed: April 17, 2012
    Publication date: May 2, 2013
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: SABINE GABRIEL, LAKSHMI KRISHNAMURTHY, MIECZYSLAW (MICHEL) STACHNIK, MARK GARY WEINBERG
  • Patent number: 8404342
    Abstract: Inclusion of a needle structured sepiolite clay in a chitosan film in an amount of about 0.5 weight percent to about 8 weight percent was found to reduce shrinkage of the film. The clay is processed into a substantially dispersed form. Laminates fabricated from this chitosan film including dispersed sepiolite clay can be used in making a variety of finished articles that can be used to provide protection from hazardous chemical and biological agents.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: March 26, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Nathaniel A. Barney, Mark Gary Weinberg, Bryan Benedict Sauer
  • Publication number: 20130052116
    Abstract: Inclusion of a needle structured clay or the plate structured clay sodium montmorillonite in a chitosan film was found to reduce shrinkage of the film. The needle structured clay is purified and processed into a substantially dispersed form by subjecting an aqueous slurry of the clay with water-soluble phosphate dispersant to a high pressure, high shear mixing process or to sonication. Laminates fabricated from chitosan film including dispersed clay can be used in make a variety of finished articles that can be used to provide protection from hazardous chemical and biological agents.
    Type: Application
    Filed: September 14, 2012
    Publication date: February 28, 2013
    Inventors: Nathaniel A. Barney, Mark Gary Weinberg, Bryan Benedict Sauer
  • Patent number: 8163350
    Abstract: Processes for fabricating selectively permeable laminates are provided. In one process, continuous chitosan film is prepared by casting a chitosan solution directly onto a substrate that will be incorporated along with the film into a laminate. Alternatively, the chitosan solution is cast onto a work device (for example, such as glass or a polymer film), dried, detached, and then incorporated into a laminate in a separate step. In various embodiments, the laminates are useful for fabrication as a protective article and are substantially impermeable to hazardous chemical and biological agents, but sufficiently permeable to water vapor that, if worn as protective apparel, it is both protective and comfortable to wear.
    Type: Grant
    Filed: November 7, 2006
    Date of Patent: April 24, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Edward George Howard, Jr., Ralph Birchard Lloyd, Ronald James McKinney, Bryan Benedict Sauer, Mark Gary Weinberg
  • Publication number: 20110195624
    Abstract: A nonwoven fibrous structure and process for forming it, which is an interconnecting web of polyolefin filaments having filament widths greater than about 1 micrometer which are further interconnected with webs of smaller polyolefin filaments having filament widths less than about 1 micrometer, wherein the smaller polyolefin filaments comprise a majority of all filaments.
    Type: Application
    Filed: April 18, 2011
    Publication date: August 11, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: MARK GARY WEINBERG, Gregory T. Dee, Thomas William Harding
  • Publication number: 20100273383
    Abstract: Inclusion of a needle structured clay or the plate structured clay sodium montmorillonite in a chitosan film was found to reduce shrinkage of the film. The clay is processed into a substantially dispersed form. Laminates fabricated from this chitosan film including dispersed clay can be used in make a variety of finished articles that can be used to provide protection from hazardous chemical and biological agents.
    Type: Application
    Filed: April 24, 2009
    Publication date: October 28, 2010
    Applicant: E . I . DU PONT DE NEMOURS AND COMPANY
    Inventors: Nathaniel A. Barney, Mark Gary Weinberg, Bryan Benedict Sauer
  • Patent number: 7745000
    Abstract: The present invention is concerned with flash-spinning a surface-modified structure such as a plexifilimentary yarn or a microcellular foam.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: June 29, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Mark Gary Weinberg, Gregory T. Dee, Jose Manuel Rodriguez-Parada
  • Publication number: 20090253320
    Abstract: A nonwoven fibrous structure and process for forming it, which is an interconnecting web of polyolefin filaments having filament widths greater than about 1 micrometer which are further interconnected with webs of smaller polyolefin filaments having filament widths less than about 1 micrometer, wherein the smaller polyolefin filaments comprise a majority of all filaments.
    Type: Application
    Filed: June 17, 2009
    Publication date: October 8, 2009
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: MARK GARY WEINBERG, Gregory T. Dee, Thomas William Harding
  • Publication number: 20080315453
    Abstract: A method for dispersing sepiolite-type clay particles in a polyester matrix by melt-compounding a mixture of: sepiolite-type clay, at least one linear polyester oligomer, and at least one polyester polymer to produce a nanocomposite composition; and, optionally, subjecting said nanocomposite composition to solid state polymerization to increase polyester molecular weight. Further described is a method for preparing a polyester nanocomposite composition from a masterbatch, comprising melt-compounding a mixture of: sepiolite-type clay, at least one polyester oligomer, and at least one polyester polymer to produce a nanocomposite composition containing a greater concentration of sepiolite-type clay than is desired in the final resin composition; optionally, subjecting said nanocomposite composition to solid state polymerization to increase the polyester molecular weight; and further melt compounding said nanocomposite composition with polyester polymer and, optionally, additional ingredients.
    Type: Application
    Filed: June 22, 2007
    Publication date: December 25, 2008
    Inventors: Michael Joseph Molitor, Mark Gary Weinberg, Mark David Wetzel, David T. Williamson
  • Publication number: 20080153987
    Abstract: The present invention is concerned with flash-spinning a surface-modified structure such as a plexifilimentary yarn or a microcellular foam.
    Type: Application
    Filed: February 28, 2008
    Publication date: June 26, 2008
    Inventors: Mark Gary Weinberg, Gregory T. Dee, Jose Manuel Rodrigues-Parada
  • Patent number: 6936651
    Abstract: A composition for forming a crystalline thermoplastic (such as polyacetal) composition for improving compatibility using a ternary blend that includes a mineral filler and elastomer material and an article made therefrom. The mineral filler may be coated or uncoated.
    Type: Grant
    Filed: September 11, 2003
    Date of Patent: August 30, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Edmund Arthur Flexman, Mark Gary Weinberg
  • Patent number: 6815479
    Abstract: A composition and method for forming a hydrocarbon polymer composition of molded articles that exhibit desirable combinations of stiffness and impact resistance, wherein the composition contains a mineral filler.
    Type: Grant
    Filed: August 17, 2000
    Date of Patent: November 9, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Mark Gary Weinberg, Edmund Arthur Flexman
  • Publication number: 20040116575
    Abstract: A composition for forming a crystalline thermoplastic (such as polyacetal) composition for improving compatibility using a ternary blend that includes a mineral filler and elastomer material and an article made therefrom. The mineral filler may be coated or uncoated.
    Type: Application
    Filed: September 11, 2003
    Publication date: June 17, 2004
    Inventors: Edmund Arthur Flexman, Mark Gary Weinberg