Copper oxide coated substrates
AssigneeEnsci, Inc.
InventorsThomas J. Clough, Victor L. Grosvenor, Naum Pinsky
Life of this patent
Estimating the term…
Abstract
Processes for coating substrates, in particular substrates including shielded surfaces, with copper oxide-containing coatings are disclosed. Such processes comprise contacting a substrate with a copper oxide precursor, preferably maintaining the precursor coated substrate at conditions to equilibrate the coating, and then oxidizing the precursor to form a substrate containing copper oxide. Also disclosed are substrates coated with copper oxide-containing coatings for use in various applications.
Claims22
An article comprising a three dimensional inorganic substrate other than magnetic or electrically conductive copper oxide having at least one coating containing magnetic or electrically conductive copper oxide on at least a portion of all three dimensions thereof produced by a process comprising:
- contacting an inorganic three dimensional substrate which includes external surfaces and shielded surfaces which are at least partially shielded by other portions of said substrate with a composition comprising a copper oxide forming compound other than copper oxide at conditions effective to form a copper oxide-forming compound containing coating on at least a portion of said substrate;
- forming a liquidus copper oxide forming compound containing coating on at least a portion of the three dimensions of said substrate including the shielded surfaces of said substrate;
- contacting said substrate with at least one additional magnetic or conductivity interacting component at conditions effective to form a component-containing coating on at least a portion of said substrate including at least a portion of the three dimensions of said substrate including the shielded surfaces of said substrate;
- said contacting being initiated at least prior to the substantially complete oxidation of said copper oxide forming compound to copper oxide and;
- contacting said substrate having said copper oxide forming compound containing coating and said additional component-containing coating thereon with an oxidizing agent at conditions effective to convert said copper oxide forming compound to copper oxide and form a copper oxide coating with additional magnetic or conductivity interacting component on at least a portion of said three dimensions of said substrate including the shielded surfaces of said substrate.
An article comprising a three dimensional inorganic substrate other than magnetic or electrically conductive copper oxide having at least one coating containing magnetic or electrically conductive copper oxide on at least a portion of all three dimensions thereof produced by a process comprising;
- contacting an inorganic three dimensional substrate which includes external surfaces and shielded portions of said substrate with a composition comprising a copper chloride-forming compound at conditions effective to form a copper chloride-forming compound containing coating on at least a portion of said substrate;
- forming a liquidus copper chloride-forming compound containing coating on at least a portion of the three dimensions of said substrate including the shielded surfaces of said substrate and at conditions effective to do at least on of the following:
- (1) coat a larger portion of said substrate with said copper chloride-forming compound (2) distribute said copper chloride-forming compound over said substrate;
- and (3) make said copper chloride-forming compound containing coating more uniform in thickness;
- and contacting said substrate with said copper chloride-forming compound containing coating with an oxidizing agent at conditions effective to convert the copper chloride-forming compound to copper oxide and form a copper oxide coating on at least a portion of said three dimensions of said substrate including the shielded surfaces of said substrate.
An article comprising a three dimensional inorganic substrate other than magnetic or electrically conductive copper oxide having at least one coating containing magnetic or electrically conductive copper oxide on at least a portion of all three dimensions thereof produced by a process comprising;
- contacting an inorganic three dimensional substrate with a composition comprising a copper oxide precursor powder other than copper oxide at conditions effective to form a coating containing copper oxide precursor on at least a portion of the substrate;
- forming a liquidus copper oxide precursor on at least a portion of the three dimensions of said substrate including the shielded surfaces of said substrate and at conditions effective to do at least one of the following:
- (1) coat a larger portion of said substrate with said coating containing copper oxide precursor;
- (2) distribute said coating containing copper oxide precursor over said substrate;
- and (3) make said coating containing copper oxide precursor more uniform in thickness;
- and
- contacting said coating substrate with an oxidizing agent at conditions effective to convert said copper oxide precursor to copper oxide on at least a portion of said three dimensions of said substrate and form a substrate having a copper oxide-containing coating.
An article comprising a three dimensional inorganic substrate other than a magnetic or electrically conductive copper oxide having a particle type shape and which includes external surfaces and shielded surfaces which are at least partially shielded by other portions of said substrate, said substrate having a coating containing at least one magnetic or electrically conductive interactant associated with the copper oxide coating on at least a portion of said three dimensions of said substrate including the shielded surfaces of said substrate.
Dependencies are inferred from the claim text.