Patents by Inventor Charles Brandenburg

Charles Brandenburg 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: 20240099307
    Abstract: A method for making an antimicrobial composite film can include forming a first coating layer by applying a first coating material on a substrate and forming a second coating layer by applying a second coating material on the first coating layer. The first coating material can comprise a first resin. The second coating material can comprise an antimicrobial material in a second resin or a dispersion. The first coating material can have a lower concentration of the antimicrobial material than the second coating material. The first and second coating layers can cooperatively define a composite film. The antimicrobial material can be asymmetrically dispersed in the composite film such that the antimicrobial material is concentrated closer to the outer surface of the composite film than to the inner surface of the composite film.
    Type: Application
    Filed: February 4, 2022
    Publication date: March 28, 2024
    Inventors: Bavani Balakrisnan, Charles Brandenburg, Douglas Edmon Goforth, Cassandra Ann Haynes, Insik Jeon, Jenny Kim, Joydeep Lahiri, Jin Liu, Kevin Robert McCarthy, Michael Lesley Sorensen
  • Publication number: 20230295423
    Abstract: Polymer-based portions comprise an index of refraction ranging from about 1.49 to about 1.55. In some embodiments, the polymer-based portion comprises the product of curing 45-75 wt % of a difunctional urethane-acrylate oligomer with 25-55 wt % of a difunctional cross-linking agent and optionally a reactive diluent. In some embodiments, the polymer-based portion comprises the product of curing 75-100 wt % of a reactive diluent and optionally one or more a difunctional urethane-acrylate oligomer and/or a difunctional cross-linking agent. Adhesives comprise an index of refraction ranging from about 1.49 to about 1.55. In some embodiments, the adhesive comprises the product of heating 10-35 wt % of a silane-hydride-terminated siloxane and 65-90 wt % of a vinyl-terminated siloxane. In some embodiments, the adhesive comprises the product of irradiating a thiol-containing siloxane and a photo-initiator with at least one wavelength of light that the photo-initiator is sensitive to.
    Type: Application
    Filed: May 26, 2023
    Publication date: September 21, 2023
    Inventors: TARA MARIE BERLEUE, CHARLES BRANDENBURG, JUSTIN BERNARD BULT, MATTHEW JOHN DEJNEKA, SUSHMIT SUNIL KUMAR GOYAL, TIMOTHY MICHAEL GROSS, YUNFENG GU, YUHUI JIN, JENNY KIM, XINGHUA LI, JIAN LUO, KEVIN ROBERT MCCARTHY, WEIJUN NIU, TERRI LEE SINES-MELOCK, MICHAEL LESLEY SORENSEN, JONATHAN EARL WALTER, ARLIN LEE WEIKEL, LEI YUAN
  • Publication number: 20210380474
    Abstract: Glass articles having a glass layer with a top a top surface, a bottom surface, and a thickness in the range of 10 microns to 200 microns, and having: a top polymeric coating layer disposed on the top surface of the glass layer with a thickness in the range of 0.1 microns to 10 microns; and/or a bottom polymeric coating layer disposed on the bottom surface of the glass layer with a thickness in the range of 0.1 microns to 10 microns. The glass articles may achieve a bend radius of 10 mm or less. The glass articles may have a shatter resistance defined by the capability of the glass article to avoid ejection of glass shard particles from the glass article upon bending to a failure bend radius.
    Type: Application
    Filed: October 21, 2019
    Publication date: December 9, 2021
    Inventors: Charles Brandenburg, Claire Renata Coble, Richard Allen Hayes, Ying Zhang
  • Publication number: 20210108077
    Abstract: Polymer-based portions comprise an index of refraction ranging from about 1.49 to about 1.55. In some embodiments, the polymer-based portion comprises the product of curing 45-75 wt % of a difunctional urethane-acrylate oligomer with 25-55 wt % of a difunctional cross-linking agent and optionally a reactive diluent. In some embodiments, the polymer-based portion comprises the product of curing 75-100 wt % of a reactive diluent and optionally one or more a difunctional urethane-acrylate oligomer and/or a difunctional cross-linking agent. Adhesives comprise an index of refraction ranging from about 1.49 to about 1.55. In some embodiments, the adhesive comprises the product of heating 10-35 wt % of a silane-hydride-terminated siloxane and 65-90 wt % of a vinyl-terminated siloxane. In some embodiments, the adhesive comprises the product of irradiating a thiol-containing siloxane and a photo-initiator with at least one wavelength of light that the photo-initiator is sensitive to.
    Type: Application
    Filed: October 12, 2020
    Publication date: April 15, 2021
    Inventors: Tara Marie Berleue, Charles Brandenburg, Justin Bernard Bult, Matthew John Dejneka, Sushmit Sunil Kumar Goyal, Timothy Michael Gross, Yungfeng Gu, Yuhui Jin, Jenny Kim, Xinghua Li, Jian Luo, Kevin Robert McCarthy, Weijun Niu, Terri Lee Sines-Melock, Michael Lesley Sorensen, Jonathan Earl Walter, Arline Lee Weikel, Lei Yuan
  • Publication number: 20060128774
    Abstract: The present invention relates to the composition and process for making (meth)acrylate amide acetals.
    Type: Application
    Filed: September 30, 2005
    Publication date: June 15, 2006
    Inventors: Neville Drysdale, Laura Lewin, Robert Barsotti, Charles Brandenburg
  • Publication number: 20060058416
    Abstract: This invention relates to composite materials for restorative dentistry. More particularly, it relates to new components for dental composites, which impart an attractive combination of good mechanical properties and low shrinkage.
    Type: Application
    Filed: September 13, 2005
    Publication date: March 16, 2006
    Inventors: Charles Brandenburg, Gordon Cohen
  • Publication number: 20060058418
    Abstract: This invention relates to composite materials for restorative dentistry. More particularly, it relates to new components for dental composites, which impart an attractive combination of good mechanical properties and low shrinkage.
    Type: Application
    Filed: September 13, 2005
    Publication date: March 16, 2006
    Inventors: Charles Brandenburg, Alexei Gridnev, Gordon Cohen
  • Publication number: 20060058417
    Abstract: This invention relates to composite materials for restorative dentistry. More particularly, it relates to new components for dental composites, which impart an attractive combination of good mechanical properties and low shrinkage.
    Type: Application
    Filed: September 13, 2005
    Publication date: March 16, 2006
    Inventors: Charles Brandenburg, Gordon Cohen
  • Publication number: 20060058414
    Abstract: This invention relates to composite materials for restorative dentistry. More particularly, it relates to new components for dental composites, which impart an attractive combination of good mechanical properties and low shrinkage.
    Type: Application
    Filed: September 13, 2005
    Publication date: March 16, 2006
    Inventors: Samuel Arthur, Donald Huang, Gary Jaycox, Carl Douglas, Andrew Stamegna, Lech Wilczek, Gordon Cohen, Charles Brandenburg
  • Publication number: 20060030719
    Abstract: The present invention relates to an improved process to prepare cis-3-dihydrocarbylmethano-5-hydrocarbyidihydro-furan-2-ones. The present invention also relates to novel compositions of matter comprising enantiomerically pure cis-3-dihydrocarbylmethano-5-hydrocarbyldihydro-furan-2-ones, being the (3S,5S), (3R,5R), (3S,5R), or (3R,5S) optically pure isomers, and a new, more cost efficient process to prepare said optically pure isomers.
    Type: Application
    Filed: August 3, 2004
    Publication date: February 9, 2006
    Inventors: Paul Fagan, Charles Brandenburg
  • Publication number: 20050124721
    Abstract: The invention relates to a dental composite material wherein space-filling compounds are utilized to reduce shrinkage upon polymerization; the invention also relates to a method for producing dental restoration articles with reduced shrinkage; the invention also relates to various dental restorative articles comprising the aforementioned space-filling compounds.
    Type: Application
    Filed: September 8, 2004
    Publication date: June 9, 2005
    Inventors: Samuel Arthur, Charles Brandenburg
  • Publication number: 20050124722
    Abstract: The invention relates to (meth)acrylate monomers derived from polyfunctional nucleus molecules; the invention further relates to a dental composite material wherein (meth)acrylate monomers are utilized to reduce shrinkage upon polymerization; the invention also relates to a method for producing dental restoration articles with reduced shrinkage; the invention also relates to various dental restorative articles comprising the aforementioned (meth)acrylate monomers.
    Type: Application
    Filed: September 8, 2004
    Publication date: June 9, 2005
    Inventors: Samuel Arthur, Charles Brandenburg
  • Publication number: 20050101731
    Abstract: Polymers containing ?-methylenelact(ones)(ams) such as ?-methylenebutyrolactones are useful in blends with other polymers. For examples such polymers which have reactive groups are toughened by mixing with a rubbery material which has complimentary reactive groups, or polymers containing repeat units derived from ?-methylenelact(ones)(ams) are toughened by mixing with polymeric core-shell particles having an elastomeric core and a specified thermoplastic shell. The properties of thermoplastics are also improved by blending with ?-methylenelact(ones)(ams) such as ?-methylenebutyrolactones containing (co)polymers.
    Type: Application
    Filed: July 28, 2003
    Publication date: May 12, 2005
    Inventors: Charles Brandenburg, David Dean, George Hofmann, Rutger Puts, Randal King, Edmund Flexman
  • Publication number: 20030212244
    Abstract: This invention provides a new, biomass-derived glycol, bis(2-hydroxyethyl)isosorbide, which is found to be a valuable monomer for a wide variety of polymeric materials
    Type: Application
    Filed: June 6, 2003
    Publication date: November 13, 2003
    Inventors: Richard Hayes, Charles Brandenburg
  • Patent number: 6608167
    Abstract: This invention provides a new, biomass-derived glycol, bis(2-hydroxyethyl)isosorbide, which is found to be a valuable monomer for a wide variety of polymeric materials.
    Type: Grant
    Filed: March 26, 2002
    Date of Patent: August 19, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Richard Hayes, Charles Brandenburg
  • Publication number: 20030130414
    Abstract: Compositions comprising homopolymers or copolymers containing repeat units derived from &agr;-methylenelact(ones)(ams) such as &agr;-methylenebutyrolactones and an inorganic filler such as alumina trihydrate are described. The decorative sheets and articles made from these compositions may have one or more of higher thermal resistance, higher hardness, higher scratch and mar resistance, faster polymerization rates, antimicrobial properties, lower coefficient of thermal expansion and, owing to a higher refractive index, a higher transparency.
    Type: Application
    Filed: December 28, 2001
    Publication date: July 10, 2003
    Inventors: Charles Brandenburg, Elizabeth P. Butler, Carl Erkenbrecher, Randy King, Clyde Hutchins, Rutger D. Puts
  • Patent number: 6531616
    Abstract: This invention pertains to a process for making &agr;-methylenelactones and &agr;-substitute hydrocarbylidene lactones. More specifically, the present invention obtains high yields of &agr;-methylene-&ggr;-butyrolactone by heating &ggr;-butyrolactone and diethyl oxalate in the presence of a base. The second step comprises treatment of the &agr;-oxalyl enolate salt with formaldehyde to afford the &agr;-methylene-&ggr;-butyrolactone.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: March 11, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Rutger D. Puts, Charles Brandenburg, Kenneth R. Tarburton
  • Publication number: 20020143195
    Abstract: This invention pertains to a process for making &agr;-methylenelactones and &agr;-substituted hydrocarbylidene lactones. More specifically, the present invention obtains high yields of &agr;-methylene-&ggr;-butyrolactone by heating &ggr;-butyrolactone and diethyl oxalate in the presence of a base. The second step comprises treatment of the &agr;-oxalyl enolate salt with formaldehyde to afford the &agr;-methylene-&ggr;-butyrolactone.
    Type: Application
    Filed: December 21, 2001
    Publication date: October 3, 2002
    Inventors: Rutger D. Puts, Charles Brandenburg, Kenneth R. Tarburton
  • Patent number: 6232474
    Abstract: This invention pertains to a process for making &agr;-methylenelactones and &agr;-substituted hydrocarbylidene lactones. The present invention obtains high yields of &agr;-methylene-&ggr;-butyrolactone by heating &ggr;-butyrolactone and formaldehyde in the presence of a base.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: May 15, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Charles Brandenburg, Randal King, Leo E. Manzer