Title:
LAYERED PARTICLE ELECTROSTATIC DEPOSITION PROCESS FOR MAKING A COATED ABRASIVE ARTICLE
Document Type and Number:
WIPO Patent Application WO/2011/149625
Kind Code:
A3
Abstract:
Disclosed is a method of applying particles to a coated backing. A first layer of particles is created over a second layer of particles on a support surface and the first layer of particles is different in at least one property from the second layer of particles. A coated backing is positioned above the first and second layer of particles. An electrostatic field is applied simultaneously to the first and second layer of particles such that the first layer of particles closer to the coated backing are preferentially attracted to the coated backing first before the second layer of particles.
Inventors:
MOREN LOUIS S (US)
KOETHE BRIAN G (US)
THURBER ERNEST L (US)
KOETHE BRIAN G (US)
THURBER ERNEST L (US)
Application Number:
PCT/US2011/035088
Publication Date:
February 02, 2012
Filing Date:
May 04, 2011
Export Citation:
Assignee:
3M INNOVATIVE PROPERTIES CO (US)
International Classes:
B24D3/34; B05D1/06; B24D11/00; B24D18/00
Foreign References:
| US20040209561A1 | 2004-10-21 | |||
| US20010002362A1 | 2001-05-31 | |||
| US4138229A | 1979-02-06 |
Other References:
See also references of EP 2576143A4
Attorney, Agent or Firm:
BAUM, Scott, A. et al. (Post Office Box 33427Saint Paul, Minnesota, US)
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