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US 8,894,466 B2Granted
Method of electrostatic deposition of particles, abrasive grain and articles
Assignee3M Innovative Properties Company
InventorsKatrin Jungbauer, Jimmie R. Baran, Jr., Roxanne A. Boehmer
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Abstract
Presently described are methods of making an article via electrostatic deposition of particles, abrasive grains and articles, as well as a method of repairing a painted surface. The abrasive grain comprises a plurality of abrasive particles having a median primary particle size of less than 75 microns, and discrete hydrophobic nanoparticles.
Claims22
A method of making an article comprising:
- providing a substrate;
- electrostatically depositing particles such that the particles are bonded to the substrate wherein the particles comprise
- i) a plurality of particles having a median primary particle size of less than 75 microns, and
- ii) discrete hydrophobic unaggregated nanoparticles, wherein the nanoparticles have an average primary particle size of less than 100 nanometers.
1 more element
An abrasive grain comprising:
- i) a plurality of abrasive particles having a median primary particle size of less than 75 microns, and
- ii) discrete hydrophobic unaggregated nanoparticles, wherein the nanoparticles have an average primary particle size of less than 100 nanometers.
Dependencies are inferred from the claim text.