Back to results
US 6,733,827 B2Granted
Processes for manufacturing particles coated with activated lignosulfonate
AssigneeThe Procter & Gamble Company
InventorsMichael Donovan Mitchell, Blair Alex Owens, Dimitris Ioannis Collias, Andrew Julian Wnuk
Life of this patent
Estimating the term…
Abstract
Processes for forming a filter material are provided. The processes include the steps of coating a filter particle with a lignosulfonate, carbonizing the coating, and activating the coating.
Claims13
A process for forming a filter material, comprising the steps of:
- a) coating a filter particle with a coating comprising a lignosulfonate, wherein the step of coating said filter particle comprises coating only a portion of said filter particle;
- b) carbonizing said coating;
- and
- c) activating said coating.
1 more element
Dependencies are inferred from the claim text.