Patents Represented by Attorney Waltern N. Kirn

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  • Coated abrasives utilizing a moisture curable polyurethane hot melt make coating
    Patent number: 5595578
    Abstract: Coated abrasives are described comprising a backing substrate having coated thereon a moisture-cured polyurethane hot melt make coating and abrasive particles at least partially embedded therein. Methods of making the inventive coated abrasives are also presented.
    Type: Grant
    Filed: August 10, 1994
    Date of Patent: January 21, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Roy Stubbs, Michael J. Hughes, James F. Morris-Adams
  • Dihydroperimidine squarylium dyes as antihalation and acutance materials for photographic and photothermographic articles
    Patent number: 5380635
    Abstract: Dihydroperimidine squarylium dyes have been found to be particularly effective when used in acutance and antihalation systems for photothermographic and photographic articles.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: January 10, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Charles W. Gomez, Lori S. Harring, Randall H. Helland, William D. Ramsden, Tran Van Thien
  • Aqueous fluorochemical compositions and coatings therefrom
    Patent number: 5294662
    Abstract: Novel polymers are disclosed which can be used to prepare water-based compositions are disclosed having the capability of forming a uniform, low surface-energy, thin film on a substrate. Such compositions comprise a polymer having at least one fluoroaliphatic moiety and at least one anionic moiety, and a novel polymer having at least one fluoroaliphatic moiety and at least one oxazoline moiety.
    Type: Grant
    Filed: April 15, 1993
    Date of Patent: March 15, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: George G. I. Moore, Dong-Wei Zhu
  • Container with intermeshable closure members
    Patent number: 5088164
    Abstract: A closure for use in joining together container portions to enclose an opening in a container. The closure includes a pair of intermeshable closure members, each having a structured surface. The structured surfaces adhere to each other when brought into contact to secure the container portions together.
    Type: Grant
    Filed: March 22, 1989
    Date of Patent: February 18, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Shari J. Wilson, Roger H. Appeldorn, Robert N. Hamlin