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).
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Patent number: 11446911Abstract: 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: GrantFiled: February 16, 2017Date of Patent: September 20, 2022Assignee: 3M Innovative Properties CompanyInventors: Stewart H. Corn, Ibrahim S. Gunes
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Publication number: 20210213701Abstract: 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: ApplicationFiled: February 16, 2017Publication date: July 15, 2021Inventors: Stewart H. Corn, Ibrahim S. Gunes
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Patent number: 11026552Abstract: 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: GrantFiled: January 17, 2017Date of Patent: June 8, 2021Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Stewart H. Corn, Matthew S. Cole, Ibrahim S. Gunes, Windy A. Santa Cruz, Dennard J. Powell
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Publication number: 20190000294Abstract: 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: ApplicationFiled: January 17, 2017Publication date: January 3, 2019Inventors: Stewart H. Corn, Matthew S. Cole, Ibrahim S. Gunes, Windy A. Santa Cruz, Dennard J. Powell
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Publication number: 20170029745Abstract: 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: ApplicationFiled: December 3, 2014Publication date: February 2, 2017Inventors: Masayuki NAKAMURA, Diane L. EMSLANDER, Stewart H. CORN, Nicole M. GRYSKA
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Publication number: 20160374531Abstract: 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: ApplicationFiled: February 4, 2016Publication date: December 29, 2016Inventors: Paul N. Daveloose, Matthew S. Cole, Ibrahim S. Gunes, Sheng Ye, Stewart H. Corn, Deval Y. Vashistha, Shridhar B. Shinde
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Patent number: 8828098Abstract: 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: GrantFiled: December 18, 2007Date of Patent: September 9, 2014Assignee: 3M Innovative Properties CompanyInventors: Stewart H. Corn, Chetan P. Jariwala
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Patent number: 8668341Abstract: 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: GrantFiled: November 20, 2009Date of Patent: March 11, 2014Assignee: 3M Innovative Properties CompanyInventors: Warren P. Caswell, Chester A. Bacon, Jr., Stewart H. Corn
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Publication number: 20130264276Abstract: Filter media is treated with a composition comprising cationic fluorinated ether silanes to provide durable water- and/or oil-repellency properties.Type: ApplicationFiled: December 20, 2011Publication date: October 10, 2013Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Stewart H. Corn, Chetan P. Jariwala, Suresh S. Iyer
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Patent number: 8506095Abstract: 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: GrantFiled: November 20, 2009Date of Patent: August 13, 2013Assignee: 3M Innovative Properties CompanyInventors: Chester A. Bacon, Jr., Bradley R. Ray, Stewart H. Corn, Timothy S. Skogland, Thomas G. Cheesebrow, Michael J. Petrich
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Publication number: 20110228391Abstract: 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: ApplicationFiled: November 20, 2009Publication date: September 22, 2011Inventors: Chester A. Bacon, JR., Bradley R. Ray, Stewart H. Corn, Timothy S. Skogland, Thomas G. Cheesebrow, Michael J. Petrich
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Publication number: 20110228393Abstract: 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: ApplicationFiled: November 20, 2009Publication date: September 22, 2011Inventors: Warren P. Caswell, Chester A. Bacon, JR., Stewart H. Corn
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Publication number: 20080146750Abstract: 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: ApplicationFiled: December 18, 2007Publication date: June 19, 2008Inventors: Stewart H. Corn, Chetan P. Jariwala
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Patent number: 6255363Abstract: 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: GrantFiled: September 26, 1996Date of Patent: July 3, 2001Assignee: 3M Innovative Properties CompanyInventors: James A. Baker, Jai Venkatesan, Wu-Shyong Li, Gay L. Herman, Stewart H. Corn
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Patent number: 5963758Abstract: 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: GrantFiled: May 12, 1998Date of Patent: October 5, 1999Assignee: Minnesota Mining and Manufacturing CompanyInventors: Stewart H. Corn, Brett A. Behnke, Thomas A. Speckhard, Oyvind H. Iversen, Christopher J. Anton, Kenneth W. Olson
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Patent number: 5832334Abstract: 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: GrantFiled: May 15, 1997Date of Patent: November 3, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: Stewart H. Corn, Brett A. Behnke, Thomas A. Speckhard, Oyvind H. Iversen, Christopher J. Anton, Kenneth W. Olson
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Patent number: 5332609Abstract: 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: GrantFiled: March 25, 1993Date of Patent: July 26, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventor: Stewart H. Corn