Patents by Inventor Andrew J. Ball

Andrew J. Ball 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).

  • Coated abrasives and backing therefor
    Patent number: 5984989
    Abstract: A coated abrasive sheet material comprising (a) a backing substrate having at least one major surface, (b) a plurality of abrasive grains, (c) a binder bonding said plurality of abrasive grains to said at least one major surface of the backing substrate, wherein the backing substrate comprises paper having a basis weight of less than about 200 g/m.sup.2 which is essentially free of latex saturants and has on said at least one major surface with the plurality of abrasive grains, one or more extruded layers of a thermoplastic polymer, and a method of making the coated abrasive sheet material.
    Type: Grant
    Filed: February 21, 1997
    Date of Patent: November 16, 1999
    Assignee: 3M Innovative Properties Company
    Inventors: Nigel Davison, Andrew J. Ball