Patents by Inventor Mark David Wetzel

Mark David Wetzel 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: 20150274951
    Abstract: A nanofilled ionomer composition comprises a nanofiller in a blend of a first ionomer and a second ionomer that is different from the first ionomer. The second ionomer is a water dispersable ionomer that allows for excellent dispersion of the nanofiller in the ionomer matrix. A variety of articles may comprise or be produced from the nanofilled ionomer composition, for example by injection molding.
    Type: Application
    Filed: October 11, 2013
    Publication date: October 1, 2015
    Inventors: Karlheinz Hausmann, Sam Louis Samuels, Gordon Mark Cohen, Mark David Wetzel
  • Publication number: 20150267033
    Abstract: An ionomer composite comprises a partially neutralized acid copolymer that comprises copolymerized units of an ?-olefin having 2 to 10 carbons and units of an ?,?-ethylenically unsaturated carboxylic acid having 3 to 8 carbons and a nanoscale filler material that are mutually dispersible in an aqueous medium. The ionomer composite itself may be formed into an article of manufacture or let down in a host polymer to form a multipolymer composite. The resulting materials may exhibit a combination of one or more desirable characteristics, including low haze, absence of undesirable coloration, high toughness, high scratch resistance, low creep, reduced coefficient of thermal expansion, and higher modulus.
    Type: Application
    Filed: October 10, 2013
    Publication date: September 24, 2015
    Inventors: Gordon Mark Cohen, Richard Allen Hayes, Mark David Wetzel
  • Publication number: 20150251384
    Abstract: Provided herein are glass laminates having at least one glass layer and a nanofilled ionomeric interlayers comprising a nanofiller in a blend of a first ionomer and a second ionomer that is different from the first ionomer. The second ionomer is a water dispersable ionomer that allows for excellent dispersion of the nanofiller in the ionomer matrix. The laminates retain favorable performance properties such as high transparency while exhibiting lower creep or heat deflection.
    Type: Application
    Filed: October 11, 2013
    Publication date: September 10, 2015
    Inventors: Stephen J. Bennison, Sam Louis Samuels, Gordon Mark Cohen, Mark David Wetzel
  • Publication number: 20150255653
    Abstract: A solar cell module comprising a solar cell layer and a sheet comprising at least one layer of a nanofilled ionomer composition, wherein the nanofilled ionomer composition comprises (1) an ionomer that is derived from a precursor ?-olefin carboxylic acid copolymer wherein (a) the precursor ?-olefin carboxylic acid copolymer comprises (i) copolymerized units of an ?-olefin and (ii) about 20 to about 25 weight % of copolymerized units of an ?,?-ethylenically unsaturated carboxylic acid; and (b) at least a portion of the total content of the carboxylic acid groups present in the precursor ?-olefin carboxylic acid copolymer have been neutralized to form metal salts of the carboxylic acid groups; and (2) one or more nanofillers.
    Type: Application
    Filed: October 11, 2013
    Publication date: September 10, 2015
    Inventors: Sam Louis Samuels, Gordon Mark Cohen, Mark David Wetzel
  • Publication number: 20140170409
    Abstract: A low-wear fluoropolymer composite body comprises at least one fluoropolymer and additive particles dispersed therein. Also provided is a process for the fabrication of such a fluoropolymer composite body. The composite body exhibits a low wear rate for sliding motion against a hard counterface, and may be formulated with either melt-processible or non-melt-processible fluoropolymers.
    Type: Application
    Filed: May 14, 2012
    Publication date: June 19, 2014
    Applicants: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC, E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Gregory Scott Blackman, Christopher P. Junk, Wallace Gregory Sawyer, Brandon A. Krick, Mark David Wetzel
  • Publication number: 20140162916
    Abstract: A fluoropolymer composite comprising at least one fluoropolymer and particulate filler material is formed using a slurry process, in which the particulate filler material is first dispersed in a polar organic liquid, which is then combined with a suitable particulate fluoropolymer. The combination is dried to form a composite powder material. The composite powder material, with optional addition of another fluoropolymer, is processed to form a fluoropolymer composite body. The process can be carried out with either melt-processible or non-melt-processible fluoropolymers.
    Type: Application
    Filed: May 14, 2012
    Publication date: June 12, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Christopher P. Junk, Paul Gregory Bekiarian, Mark David Wetzel
  • Patent number: 8277711
    Abstract: A process and apparatus for forming nanofibers from a spinning melt utilizing a high speed rotating distribution disc. The fibers can be collected into a uniform web for selective barrier end uses. Fibers with an average fiber diameter of less that 1,000 nm can be produced.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: October 2, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Tao Huang, Larry R. Marshall, Jack Eugene Armantrout, Scott Yembrick, William H. Dunn, James M. Oconnor, Tim Mueller, Marios Avgousti, Mark David Wetzel
  • 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: 20080242171
    Abstract: A process and apparatus for forming nanofibers from a spinning melt utilizing a high speed rotating distribution disc. The fibers can be collected into a uniform web for selective barrier end uses. Fibers with an average fiber diameter of less that 1,000 nm can be produced.
    Type: Application
    Filed: March 18, 2008
    Publication date: October 2, 2008
    Inventors: Tao Huang, Larry R. Marshall, Jack Eugene Armantrout, Scott Yembrick, willliam H. Dunn, James M. Oconnor, Tim Mueller, Marios Avgousti, Mark David Wetzel
  • Patent number: 7265176
    Abstract: Disclosed is a composition comprising or produced from nanoparticle-sized TiO2, an ethylene copolymer or ionomer of the ethylene copolymer, and optionally a second polymer. Also disclosed are films and other shaped articles produced therefrom. The composition, possessing a UV light barrier, can be used to protect the products that may be susceptible to UV such as foodstuffs.
    Type: Grant
    Filed: January 31, 2005
    Date of Patent: September 4, 2007
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Christina Troeltzsch, John W. Paul, Austin Henry Reid, Jr., Mark David Wetzel, Douglas Eric Spahr
  • Patent number: 6627127
    Abstract: Disclosed is a process for controlling extrusion processes by applying dynamic periodic pulses to the process throughout and during the process, analyzing the pulse response data and feeding back the results of the analysis to the process parameters and product properties.
    Type: Grant
    Filed: March 28, 2001
    Date of Patent: September 30, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Michael Joseph Piovoso, Paul Thomas Shea, Chi-Kai Shih, Mark David Wetzel