Active material useful as adsorbent comprising metal oxide/hydroxide articles reacted with one or more phosphorous-containing materials havingselected organic radicals attached thereto
CA 1307515 C · Owner: Martin, Edward S. · Inventors: Wieserman, Larry F.; Martin, Edward S.; Cross, Kathryn
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An active material is disclosed comprising metal oxide/ hydroxide particles having chemically bonded to reactive sites on a surface thereof, a monolayer of a phosphorous-containing organic material comprised of a phosphorous-containing group and a carboncontaining group. The bond to the metal oxide/hydroxide surface is formed by reaction of the phosphorous-containing group with the metal oxide/hydroxide particle surface so that the carbon-, containing group of the material is oriented away from the metal oxide/hydroxide surface.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted September 15, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 15, 2009.
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Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.