Transition metal oxide coated substrates
First Claim
1. An article comprising a three-dimensional inorganic particulate substrate and at least one of an electrically conductive or magnetic interacting component containing transition metal oxide containing coating on at least a portion of all three dimensions of said substrate, said substrate including external surfaces and shielded surfaces which are at least partially shielded by other portions of said substrate and having at least one of the electronically conductive or magnetic transition metal oxide containing coating on at least a portion of said external surfaces and said shielded surfaces, provided that said substrate has substantially nonelectronically conductive and nonmagnetic properties derived from a transition metal oxide contained in said substrate which is the same as the transition metal oxide of the coating;
- said coating being formed from the oxidation of a liquidus transition metal oxide precursor on said substrate, said coated substrate being adapted for use, alone or in combination with one or more articles or elements selected from the group consisting of an inorganic matrix element, an organic matrix element, a porous polymer matrix element, a porous inorganic matrix element, a fluid matrix element, a structural element, a catalyst component element, a porous membrane element, an electrostatic dissipation element, an electromagnetic interference shielding element, a heating element and a mechanical electrical element.
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Accused Products
Abstract
Processes for coating substrates, in particular substrates including shielded surfaces, with transition metal oxide-containing coatings are disclosed. Such processes comprise contacting a substrate with a transition metal oxide precursor, preferably maintaining the precursor coated substrate at conditions to equilibrate the coating, and then oxidizing the precursor to form a substrate containing transition metal oxide. Also disclosed are substrates coated with transition metal oxide-containing coatings for use in various applications.
200 Citations
31 Claims
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1. An article comprising a three-dimensional inorganic particulate substrate and at least one of an electrically conductive or magnetic interacting component containing transition metal oxide containing coating on at least a portion of all three dimensions of said substrate, said substrate including external surfaces and shielded surfaces which are at least partially shielded by other portions of said substrate and having at least one of the electronically conductive or magnetic transition metal oxide containing coating on at least a portion of said external surfaces and said shielded surfaces, provided that said substrate has substantially nonelectronically conductive and nonmagnetic properties derived from a transition metal oxide contained in said substrate which is the same as the transition metal oxide of the coating;
- said coating being formed from the oxidation of a liquidus transition metal oxide precursor on said substrate, said coated substrate being adapted for use, alone or in combination with one or more articles or elements selected from the group consisting of an inorganic matrix element, an organic matrix element, a porous polymer matrix element, a porous inorganic matrix element, a fluid matrix element, a structural element, a catalyst component element, a porous membrane element, an electrostatic dissipation element, an electromagnetic interference shielding element, a heating element and a mechanical electrical element.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An article comprising at least one of an electrically conductive or magnetic transition metal oxide coated inorganic three dimensional substrate produced by a process comprising:
contacting said 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 transition metal oxide forming compound having a melting point of from about 100°
C. to about 650°
C. at conditions effective to form a transition metal oxide forming compound containing coating on at least a portion of said three dimensional substrate, including at least a portion of the shielded surfaces of said substrate;
forming a liquidus coating from said transition metal oxide forming compound on at least a portion of the three dimensions of said substrate including the shielded surfaces of said substrate under substantially nondeleterious conditions effective to do at least one of the following;
(1) coat a larger portion of said substrate with the said transition metal oxide forming compound coating;
(2) distribute said transition metal oxide forming compound coating over said substrate; and
(3) make the transition metal oxide forming compound coating more uniform in thickness, contacting said substrate having liquidus transition metal oxide forming compound containing coating thereon with an oxidizing agent at conditions effective to convert the transition metal oxide forming compound to a transition metal oxide and form a transition metal oxide on at least a portion of said three dimensions of said coated substrate including the shield surfaces and recovering at least one of an electrically conductive or magnetic transition metal oxide coated three dimensional substrate, provided that said substrate has substantially nonelectronically conductive and nonmagnetic properties derived from a transition metal oxide contained in said substrate which is the same as the transition metal oxide of the coating.- View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. An article comprising at least one of an electrically conductive or magnetic transition metal oxide coated inorganic three dimensional substrate produced by a process comprising;
- contacting said inorganic three dimensional substrate which includes external surfaces and shielded surfaces which are at least partially shielded by other portions of said substrates, with a composition comprising a transition metal oxide precursor powder at conditions effective to form a coating containing transition metal oxide precursor on at least a portion of the substrate;
forming a liquidus coating from said transition metal 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;
(2) distribute said coating over said substrate; and
(3) make said coating more uniform in thickness and contacting said liquidus coated substrate with an oxidizing agent at conditions effective to convert the coating to a transition metal oxide and form a transition metal oxide coating on at least a portion of said three dimensions of said substrate including shielded surfaces and recovering at least one of an electrically conductive or magnetic transition metal oxide coated three dimensional substrate, provided that said substrate has substantially nonelectronically conductive and nonmagnetic properties derived from a transition metal oxide contained in said substrate which is the same as the transition metal oxide of the coating. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31)
- contacting said inorganic three dimensional substrate which includes external surfaces and shielded surfaces which are at least partially shielded by other portions of said substrates, with a composition comprising a transition metal oxide precursor powder at conditions effective to form a coating containing transition metal oxide precursor on at least a portion of the substrate;
Specification