Patents Represented by Attorney Culene H. Blank

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  • Cyclic silazanes containing an oxamido ester group and methods of making these compounds
    Patent number: 7507849
    Abstract: Cyclic silazanes containing an oxamido ester group and methods of making these compounds are described. The compounds can be used, for example, to make oxamido ester-terminated siloxanes, which can be precursors for the preparation of various polymeric materials such as, for example, polydiorganosiloxane polyoxamides.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: March 24, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: Charles M. Leir, Karl E. Benson, Richard G. Hansen