Patents by Inventor Stewart H. Corn

Stewart H. Corn 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: 11446911
    Abstract: A scrubbing article including a substrate and a texture layer. The texture layer is formed on at least one surface of the substrate, and is a solvent-free texture layer. The texture layer can include a plastisol ink or a hot melt adhesive, and may further include a plurality of ceramic microspheres. Methods of manufacture are also provided in which a solvent-free texture layer composition is applied to a substrate and then solidified to form a texture layer. In some non-limiting embodiments, the texture layer composition includes a hot melt adhesive and is applied to the substrate in the form of a wetted cellulose sponge.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: September 20, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Stewart H. Corn, Ibrahim S. Gunes
  • Publication number: 20210213701
    Abstract: A scrubbing article including a substrate and a texture layer. The texture layer is formed on at least one surface of the substrate, and is a solvent-free texture layer. The texture layer can include a plastisol ink or a hot melt adhesive, and may further include a plurality of ceramic microspheres. Methods of manufacture are also provided in which a solvent-free texture layer composition is applied to a substrate and then solidified to form a texture layer. In some non-limiting embodiments, the texture layer composition includes a hot melt adhesive and is applied to the substrate in the form of a wetted cellulose sponge.
    Type: Application
    Filed: February 16, 2017
    Publication date: July 15, 2021
    Inventors: Stewart H. Corn, Ibrahim S. Gunes
  • Patent number: 11026552
    Abstract: A scrubbing article including a substrate, a stain release coating and a texture layer. The stain release coating is applied to the substrate and is present over a at least a major surface of the substrate, and the texture layer is formed over the stain release coating opposite the substrate. In some embodiments, the texture layer is printed on to the stain release coating. The substrate can assume various forms, such as nonwoven, fabric (e.g., woven or knitted), foam, film and sponge material or combinations thereof.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: June 8, 2021
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Stewart H. Corn, Matthew S. Cole, Ibrahim S. Gunes, Windy A. Santa Cruz, Dennard J. Powell
  • Publication number: 20190000294
    Abstract: A scrubbing article including a substrate, a stain release coating and a texture layer. The stain release coating is applied to the substrate and is present over a at least a major surface of the substrate, and the texture layer is formed over the stain release coating opposite the substrate. In some embodiments, the texture layer is printed on to the stain release coating. The substrate can assume various forms, such as nonwoven, fabric (e.g., woven or knitted), foam, film and sponge material or combinations thereof.
    Type: Application
    Filed: January 17, 2017
    Publication date: January 3, 2019
    Inventors: Stewart H. Corn, Matthew S. Cole, Ibrahim S. Gunes, Windy A. Santa Cruz, Dennard J. Powell
  • Publication number: 20170029745
    Abstract: An aqueous enzyme cleaning and protecting composition that includes: water; a protease; a surfactant selected from an anionic surfactant, a nonionic surfactant, an amphoteric surfactant, and a combination thereof; and a (meth)acrylic acid polymer component that is non-emulsifying; wherein the composition demonstrates protease activity.
    Type: Application
    Filed: December 3, 2014
    Publication date: February 2, 2017
    Inventors: Masayuki NAKAMURA, Diane L. EMSLANDER, Stewart H. CORN, Nicole M. GRYSKA
  • Publication number: 20160374531
    Abstract: A scrubbing article including a substrate and a UV treated texture layer on a surface of the substrate. The substrate is formed from a single layer of foam or sponge material having a thickness that is conducive to handling or holding. The UV treated texture layer is a resin-based material forming a textured abrasive layer on the surface of the substrate.
    Type: Application
    Filed: February 4, 2016
    Publication date: December 29, 2016
    Inventors: Paul N. Daveloose, Matthew S. Cole, Ibrahim S. Gunes, Sheng Ye, Stewart H. Corn, Deval Y. Vashistha, Shridhar B. Shinde
  • Patent number: 8828098
    Abstract: Non-fluorinated blocked polyurethanes are described as extenders and, particularly as textile auxiliaries, for use with fluorochemical polymers in treating substrates, for example fibrous substrates, such as textile fabrics or yarns. The polyurethane is prepared by reacting a polyisocyanate, a blocking agent, and a non-fluorinated isocyanate reactive compound having an average alkyl chain length of 24 to 50 carbon atoms.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: September 9, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Stewart H. Corn, Chetan P. Jariwala
  • Patent number: 8668341
    Abstract: A prismatic retroreflective article bearing a graphic and a method of making the same. The prismatic retroreflective article can include an optical layer including a front surface and a rear structured surface defined at least partially by internally reflecting cube-corner optical elements. The rear structured surface can be infused with a graphic, such that the prismatic retroreflective article retroreflects the graphic when viewed from the front surface of the optical layer. The method can include providing a graphic donor sheet, coupling the graphic donor sheet to the prismatic retroreflective article to form a composite, and applying heat and pressure to the composite to transfer at least a portion of the sublimation colorant from the graphic donor sheet to the rear structured surface of the optical layer.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: March 11, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Warren P. Caswell, Chester A. Bacon, Jr., Stewart H. Corn
  • Publication number: 20130264276
    Abstract: Filter media is treated with a composition comprising cationic fluorinated ether silanes to provide durable water- and/or oil-repellency properties.
    Type: Application
    Filed: December 20, 2011
    Publication date: October 10, 2013
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Stewart H. Corn, Chetan P. Jariwala, Suresh S. Iyer
  • Patent number: 8506095
    Abstract: A transfer article, a retroreflective article and methods of making the same. The transfer article can include an overlay. The retroreflective article can include an optical layer and an overlay. The optical layer can include a front surface and a rear surface, and can include retroreflective optical elements. The overlay can include a front surface and a rear surface adapted to be coupled to the front surface of a substrate, such as the optical layer. The overlay can further include a graphic, such that the graphic is buried with respect to the front surface of the overlay. A method of making the retroreflective article can include applying a graphic to the rear surface of the overlay, and coupling the overlay bearing the graphic to the front surface of a substrate, such as the optical layer.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: August 13, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Chester A. Bacon, Jr., Bradley R. Ray, Stewart H. Corn, Timothy S. Skogland, Thomas G. Cheesebrow, Michael J. Petrich
  • Publication number: 20110228391
    Abstract: A transfer article, a retroreflective article and methods of making the same. The transfer article can include an overlay. The retroreflective article can include an optical layer and an overlay. The optical layer can include a front surface and a rear surface, and can include retroreflective optical elements. The overlay can include a front surface and a rear surface adapted to be coupled to the front surface of a substrate, such as the optical layer. The overlay can further include a graphic, such that the graphic is buried with respect to the front surface of the overlay. A method of making the retroreflective article can include applying a graphic to the rear surface of the overlay, and coupling the overlay bearing the graphic to the front surface of a substrate, such as the optical layer.
    Type: Application
    Filed: November 20, 2009
    Publication date: September 22, 2011
    Inventors: Chester A. Bacon, JR., Bradley R. Ray, Stewart H. Corn, Timothy S. Skogland, Thomas G. Cheesebrow, Michael J. Petrich
  • Publication number: 20110228393
    Abstract: A prismatic retroreflective article bearing a graphic and a method of making the same. The prismatic retroreflective article can include an optical layer including a front surface and a rear structured surface defined at least partially by internally reflecting cube-corner optical elements. The rear structured surface can be infused with a graphic, such that the prismatic retroreflective article retroreflects the graphic when viewed from the front surface of the optical layer. The method can include providing a graphic donor sheet, coupling the graphic donor sheet to the prismatic retroreflective article to form a composite, and applying heat and pressure to the composite to transfer at least a portion of the sublimation colorant from the graphic donor sheet to the rear structured surface of the optical layer.
    Type: Application
    Filed: November 20, 2009
    Publication date: September 22, 2011
    Inventors: Warren P. Caswell, Chester A. Bacon, JR., Stewart H. Corn
  • Publication number: 20080146750
    Abstract: Non-fluorinated blocked polyurethanes are described as extenders and, particularly as textile auxiliaries, for use with fluorochemical polymers in treating substrates, for example fibrous substrates, such as textile fabrics or yams. The polyurethane is prepared by reacting a polyisocyanate, a blocking agent, and a non-fluorinated isocyanate reactive compound having an average alkyl chain length of 24 to 50 carbon atoms.
    Type: Application
    Filed: December 18, 2007
    Publication date: June 19, 2008
    Inventors: Stewart H. Corn, Chetan P. Jariwala
  • Patent number: 6255363
    Abstract: An organosol comprising a high molecular weight (co)polymeric steric stabilizer covalently bonded to an insoluble, high molecular weight thermoplastic (co)polymeric core is described which has the ability to form a three dimensional gel of controlled rigidity. The gel provides improved liquid ink or liquid electrophotographic/electrographic toner compositions by increasing sedimentation stability of the colorant, without compromising print quality or ink transfer performance. The gel is formed by manipulating the solubility parameter difference between the stabilizer and the solvent to achieve optimum performance of the dispersion.
    Type: Grant
    Filed: September 26, 1996
    Date of Patent: July 3, 2001
    Assignee: 3M Innovative Properties Company
    Inventors: James A. Baker, Jai Venkatesan, Wu-Shyong Li, Gay L. Herman, Stewart H. Corn
  • Patent number: 5963758
    Abstract: A system for substantially maintaining color density in liquid toners for electrographic printers is disclosed. The system includes means for substantially continuously supplying toner concentrate to a printer and means for substantially continuously withdrawing liquid toner from a printer into a waste flowstream. A method to achieve substantially consistent color density of liquid toner in an electrographic printing system is also disclosed.
    Type: Grant
    Filed: May 12, 1998
    Date of Patent: October 5, 1999
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Stewart H. Corn, Brett A. Behnke, Thomas A. Speckhard, Oyvind H. Iversen, Christopher J. Anton, Kenneth W. Olson
  • Patent number: 5832334
    Abstract: A system for substantially maintaining color density in liquid toners for electrographic printers is disclosed. The system includes means for substantially continuously supplying toner concentrate to a printer and means for substantially continuously withdrawing liquid toner from a printer into a waste flowstream. A method to achieve substantially consistent color density of liquid toner in a electrographic printing system is also disclosed.
    Type: Grant
    Filed: May 15, 1997
    Date of Patent: November 3, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Stewart H. Corn, Brett A. Behnke, Thomas A. Speckhard, Oyvind H. Iversen, Christopher J. Anton, Kenneth W. Olson
  • Patent number: 5332609
    Abstract: The present invention relates to an intumescent mounting mat useful for mounting monoliths within a casing or container. The mat is useful, for example, for mounting a catalytic converter element in a metallic casing to provide a catalytic converter.
    Type: Grant
    Filed: March 25, 1993
    Date of Patent: July 26, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Stewart H. Corn