Patents Assigned to Hi-Control Ltd.
  • Process for preparing an abrasive sheet
    Patent number: 5096464
    Abstract: A process for preparing an abrasive sheet having abrasive particles adhered on a base sheet in monolayer is disclosed, wherein mixed slurry of abrasive particles and binder adhesive is foamed, the foamed slurry is uniformaly painted on the base sheet, and foams formed in the slurry is broken by heating thereby to form the abrasive sheet having good flatness.
    Type: Grant
    Filed: June 12, 1990
    Date of Patent: March 17, 1992
    Assignee: Hi-Control Ltd.
    Inventor: Motokazu Yamamoto