Soluble Metal Oxides and Metal Oxide Solutions
First Claim
1. Surface modified soluble metal oxide crystallite particles comprising a plurality of metal and oxygen moieties having a sufficient number of carboxylate groups, from carboxylic acid used to modify the surface of the metal oxide, attached to the surface metal atoms so as to allow the surface modified metal oxide to be solubilised, wherein the carboxylic acid is selected from the group consisting of:
- a cyclic C1-C20 aliphatic organic acid, an acyclic C1-C20 aliphatic organic acid, a C6-C20 aromatic organic acid, monocarboxylic acids, dicarboxylic acids, tricarboxylic acids, and combinations thereof;
wherein the acid is optionally substituted one or more times with one or more halogen atoms, one or more alkoxy groups, and one or more hydroxyl groups and combinations thereof.
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Accused Products
Abstract
The invention relates to soluble metal oxides and mixed metal oxides and to solutions comprising metal oxides and mixed metal oxides. The invention further relates to a process for preparing a soluble metal oxide and a soluble mixed metal oxide and additionally relates to a process for modifying the solubility of a soluble metal oxide. The metal oxides, mixed metal oxides and solutions thereof have a number of applications and in particular are suitable for use as catalysts and also as precursors for the formation of metal oxide coatings. The present invention is also suitable for coating medical devices, and can be used for coating drug cocktails to produce sustained release tablets. Similarly, the coatings may be used for the sustained release of pesticides, insecticides, dyes and fragrances. Further uses include the application of the present invention to coat the moving parts of engines and machinery. Furthermore the present invention has application as use as spacer layers in Metal Enhanced Fluorophores (sensing platforms).
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Citations
25 Claims
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1. Surface modified soluble metal oxide crystallite particles comprising a plurality of metal and oxygen moieties having a sufficient number of carboxylate groups, from carboxylic acid used to modify the surface of the metal oxide, attached to the surface metal atoms so as to allow the surface modified metal oxide to be solubilised, wherein the carboxylic acid is selected from the group consisting of:
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a cyclic C1-C20 aliphatic organic acid, an acyclic C1-C20 aliphatic organic acid, a C6-C20 aromatic organic acid, monocarboxylic acids, dicarboxylic acids, tricarboxylic acids, and combinations thereof; wherein the acid is optionally substituted one or more times with one or more halogen atoms, one or more alkoxy groups, and one or more hydroxyl groups and combinations thereof. - View Dependent Claims (2, 6)
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3. Surface modified soluble doped metal oxide crystallite particles comprising surface modified soluble metal oxide crystallite particles comprising a plurality of metal and oxygen moieties having a sufficient number of carboxylate groups, from carboxylic acid used to modify the surface of the metal oxide, attached to the surface metal atoms so as to allow the surface modified metal oxide to be solubilised, doped with at least one further metal, wherein the carboxylic acid is selected from the group consisting of:
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a cyclic C1-C20 aliphatic organic acid, an acyclic C1-C20 aliphatic organic acid, a C6-C20 aromatic organic acid, monocarboxylic acids, dicarboxylic acids, tricarboxylic acids, and combinations thereof; wherein the acid is optionally substituted one or more times with one or more halogen atoms, one or more alkoxy groups, and one or more hydroxyl groups and combinations thereof. - View Dependent Claims (4, 5, 7)
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8. A coating applied to a substrate comprising:
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surface modified soluble metal oxide crystallite particles, optionally doped with at least one further metal, comprising a plurality of metal and oxygen moieties having a sufficient number of carboxylate groups, from carboxylic acid used to modify the surface of the metal oxide, attached to the surface metal atoms so as to allow the surface modified metal oxide to be solubilised, wherein the carboxylic acid is selected from the group consisting of; a cyclic C1-C20 aliphatic organic acid, an acyclic C1-C20 aliphatic organic acid, a C6-C20 aromatic organic acid, monocarboxylic acids, dicarboxylic acids, tricarboxylic acids, and combinations thereof; wherein the acid is optionally substituted one or more times with one or more halogen atoms, one or more alkoxy groups, and one or more hydroxyl groups and combinations thereof. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A catalytic composition adapted for use as a coating for a substrate, said catalytic composition comprising:
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a surface modified soluble metal oxide crystallite particles comprising a plurality of metal and oxygen moieties having a sufficient number of carboxylate groups, from carboxylic acid used to modify the surface of the metal oxide, attached to the surface metal atoms so as to allow the surface modified metal oxide to be solubilised, wherein the carboxylic acid is selected from the group consisting of; a cyclic C1-C20 aliphatic organic acid, an acyclic C1-C20 aliphatic organic acid, a C6-C20 aromatic organic acid, monocarboxylic acids, dicarboxylic acids, tricarboxylic acids, and combinations thereof; wherein the acid is optionally substituted one or more times with one or more halogen atoms, one or more alkoxy groups, and one or more hydroxyl groups and combinations thereof, wherein the soluble metal oxide is; optionally doped with at least one further metal, optionally in solution, or optionally doped with at least one further metal and in solution. - View Dependent Claims (23)
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24. A fire retardant composition adapted for use as a coating for a substrate, said fire retardant composition comprising
a surface modified soluble metal oxide crystallite particles, optionally doped with at least one further metal, comprising a plurality of metal and oxygen moieties having a sufficient number of carboxylate groups, from carboxylic acid used to modify the surface of the metal oxide, attached to the surface metal atoms so as to allow the surface modified metal oxide to be solubilised, wherein the carboxylic acid is selected from at least one of the group consisting of: -
a cyclic C1-C20 aliphatic organic acid, an acyclic C1-C20 aliphatic organic acid, a C6-C20 aromatic organic acid, monocarboxylic acids, dicarboxylic acids, tricarboxylic acids, and combinations thereof; wherein the acid is optionally substituted one or more times with one or more halogen atoms, one or more alkoxy groups, and one or more hydroxyl groups and combinations thereof. - View Dependent Claims (25)
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Specification