Patents by Inventor Jonathan N. Chasman

Jonathan N. Chasman 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 abrasive suitable for use as a lapping material
    Patent number: 4773920
    Abstract: Coated abrasive comprising a backing and abrasive grain adhered to said backing by means of a binder. The binder is prepared from a composition that is curable by free-radical polymerization. The composition contains abrasive grain suspended therein at the time the composition is coated onto the backing. The abrasive exhibits high endurance for extended periods of use. The coated abrasive is prepared by a method comprising the steps of:(a) providing a coatable composition comprising a binder curable by free-radical polymerization, said composition having lapping size abrasive grains suspended therein,(b) coating said composition on a backing, and(c) curing said composition by means of free-radical polymerization.
    Type: Grant
    Filed: March 18, 1987
    Date of Patent: September 27, 1988
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Jonathan N. Chasman, Ramon F. Hegel, Philip E. Kendall, Nathan B. Postma, Douglas S. Spencer