Patents Assigned to Minnesota Mining and Manufacturing Copmany
  • Method of making abrasive filaments comprising abrasive-filled thermoplastic elastomer
    Patent number: 5837179
    Abstract: An abrasive filament, including a thermoplastic elastomer having abrasive particles dispersed and adhered therein, exhibits improved life over previously known abrasive-filled polymeric filaments. Methods of making abrasive filaments of the invention, articles including the abrasive filaments, and methods of abrading surfaces using the abrasive articles of the invention are also described.
    Type: Grant
    Filed: March 23, 1995
    Date of Patent: November 17, 1998
    Assignee: Minnesota Mining and Manufacturing Copmany
    Inventors: Richard M. Pihl, Duane J. Hayes, Loren L. Barber, Jr., Dennis G. Welygan, R. Eugene Hardwick, Ronald O. Zemke, deceased