3m Innovative Properties Company

Mark R Nyberg

Ernest L Thurber

John T Boden

Brian G Koethe

Geoffrey I Wilson

Jeffery S Thomford

Charles C Drange

Robert J Hnatyk

Jeffrey S Thomford

Methods of making an abrasive article. Abrasive particles are loaded to a distribution tool including a plurality of walls defining a plurality of slots. Each slot is open to a lower side of the tool. The loaded particles are distributed from the distribution tool to a major face of a backing web below the lower side and moving relative to the tool. At least a majority of the particles distributed from the tool undergo an orientation sequence in which each particle first enters one of the slots. The particle then passes partially through the slot such that a first portion is beyond the lower side and in contact with the major face, and a second portion within the slot. The sequence then includes the particle remaining in simultaneous contact with one of the walls and the major face for a dwell period while the web moves relative to the tool.

Systems and methods for making abrasive articles

Growing community of inventors

Alexandria, MN, United States of America

Mark R Nyberg