| | U.S. Patent: 5011512 - Coated abrasive products employing nonabrasive diluent grains - April 30, 1991 |
 | | Thus, adding soft nonabrasive diluents, which breakdown quickly under grinding action and aid the breakdown of the abrasive grains, to coated abrasives, would be expected to lead to the removal of the entire cutting surface, thereby reducing the life and performance of the abrasive article. |
 | | Additionally, since the nonabrasive diluent grains are generally less expensive than the premium abrasive grains, the coated abrasive articles of the present invention are less expensive than coated abrasive articles containing a full loading of premium abrasive grains with no diluent. |
 | | The nonabrasive inorganic diluent grains of the invention should not be confused with organic diluents or inorganic fillers which are sometimes used in the bond system of coated abrasives. |
| www.everypatent.com /comp/pat5011512.html (6227 words) |