Patents Represented by Attorney Daniel C. Shulte

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  • Battery containing bis(perfluoroalkylsulfonyl)imide and cyclic perfluoroalkylene disulfonylimide salts
    Patent number: 5691081
    Abstract: A high performance battery containing an aluminum current collector is described which includes a noncorrosive salt disposed in a matrix, said salt being a bis(perfluoroalkylsulfonyl)imide having a total of at least 3 carbon atoms or a cyclic(perfluoroalkylenedisulfonyl)-imide.
    Type: Grant
    Filed: May 29, 1996
    Date of Patent: November 25, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Larry J. Krause, John W. Summerfield
  • Magnetic recording medium comprising magnetic particles, binder, and a non halogenated vinyl oligomer dispersant
    Patent number: 5674604
    Abstract: The present invention provides a non-halogenated vinyl oligomer wherein the oligomer comprises a plurality of pendant nitrile groups and at least one pendant dispersing group; wherein the oligomer has a glass transition temperature of about 60.degree. to about 105.degree. C. and a number average molecular weight of about 2000 to about 4000 and the equivalent weight of the dispersing group(s) is about 500 to about 50,000. The invention also provides magnetic recording media comprising these dispersants.
    Type: Grant
    Filed: March 31, 1995
    Date of Patent: October 7, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Ramesh C. Kumar, Suman K. Patel