# US 10,370,765 B2 · Corrosion inhibiting sol-gel compositions > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,370,765 B2 - Document ID: US10370765B2 - Status: Granted - Kind: B2 - Application number: 14/777,642 - Filed: 2014-03-13 - Published: 2016-09-22 - Granted: 2019-08-06 - Earliest claimed: 2013-03-16 - Assignees: PRC-DeSoto International, Inc. - Applicants: PRC-DeSoto International, Inc. - Inventors: Eric L. Morris - Web page: https://patentgrep.com/patent/US10370765B2 ## CPC - C23C 18/1254: {Sol or sol-gel processing} - C09D 5/084: {Inorganic compounds} - C09D 5/086: {Organic or non-macromolecular compounds} - C23C 18/122: {Inorganic polymers, e.g. silanes, polysilazanes, polysiloxanes} - C23C 18/54: Contact plating, i.e. electroless electrochemical plating - C23C 2222/20: Use of solutions containing silanes - C23C: COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL (making metal-coated products by extrusion B21C23/22; covering with metal by connecting pre-existing layers to articles, see the relevant places, e.g. B21D39/00, B23K; metallising of glass C03C; metallising mortars, concrete, artificial stone, ceramics or natural stone C04B41/00; enamelling of, or applying a vitreous layer to, metals C23D; treating metal surfaces or coating of metals by electrolysis or electrophoresis C25D; single-crystal film growth C30B; by metallising textiles D06M11/83; decorating textiles by locally metallising D06Q1/04) - C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D) ## Abstract A composition for application to a metal substrate comprises a sol-gel or a silane and a corrosion inhibitor. The corrosion inhibitor comprises a lithium ion and/or an azole compound. A coated substrate includes the composition for application to a metal substrate and a coating on the composition. A method of fabricating a coated substrate comprises applying the composition to a substrate, curing the composition to form a conversion coating, and applying a coating on the conversion coating. ## Claims ### Claim 1 A composition for application to a metal substrate, the composition comprising: a sol-gel; and a corrosion inhibitor comprising a lithium ion present in an amount of 0.02 g/1000 g composition to 12 g/1000 g composition and an alkali metal ion other than lithium. ### Claim 2 (depends on 1) The composition according to claim 1, wherein the corrosion inhibitor further comprises a counter ion capable of forming a salt with the lithium ion, the alkali metal ion other than lithium, or combinations thereof. ### Claim 3 (depends on 2) The composition according to claim 2, wherein the counter ion comprises a carbonate ion and/or a hydroxide ion. ### Claim 4 (depends on 1) The composition according to claim 1, wherein the sol-gel comprises an organosilane based sol-gel. ### Claim 5 (depends on 4) The composition according to claim 4, wherein the organosilane based sol-gel comprises allyltrimethoxysilane, n-(2-aminoethyl)-3-aminopropyltrimethoxysilane, p-aminophenylsilane, 3-aminopropyltriethoxysilane, 3-aminopropyltrimethoxysilane, 3-glycidoxypropyldiisopropylethoxysilane, 3-glycidoxypropylmethyldiethoxysilane, glycidyloxy-(C2-C6 alkyl)trialkoxysilanes comprising 3-glycidoxypropyltrimethoxysilane, 3-mercaptopropyltriethoxysilane, 3-mercaptopropyltrimethoxysilane, 3-methacryloxypropy lmethyldiethoxy silane, 3-methacryloxypropylmethyldimethoxysilane, 3-methacryloxypropyltrimethoxysilane, n phenylaminopropyltrimethoxysilane, vinylmethyldiethoxysilane, vinyltriethoxysilane, vinyltrimethoxysilane, or a mixture thereof. ### Claim 6 (depends on 4) The composition according to claim 4, wherein the organosilane based sol-gel comprises a glycidyloxy-(C2-C6 alkyl)trialkoxysilane. ### Claim 7 (depends on 4) The composition according to claim 4, wherein the organosilane based sol-gel comprises 3-glycidoxypropyltrimethoxysilane. ### Claim 8 (depends on 1) The composition according to claim 1, wherein the sol-gel comprises an organometallic compound. ### Claim 9 (depends on 8) The composition according to claim 8, wherein the organometallic compound comprises an alkoxyzirconium compound. ### Claim 10 (depends on 1) The composition according to claim 1, further comprising an azole compound. ### Claim 11 (depends on 10) The composition according to claim 10, wherein the azole compound comprises 2,5-dimercapto-1,3,4-thiadiazole. ### Claim 12 (depends on 1) A coated article, comprising: a substrate; and the composition of claim 1 on at least a portion of the substrate. ### Claim 13 (depends on 12) The coated article of claim 12, wherein the substrate comprises aluminum. ### Claim 14 (depends on 12) The coated article of claim 12, further comprising a coating on the composition. ### Claim 15 (depends on 1) A method of manufacturing a coated article, the method comprising: applying the composition of claim 1 to at least a portion of a substrate; and curing the composition to form a sol-gel coating. ### Claim 16 (depends on 15) The method of claim 15, further comprising pre-treating the substrate prior to application of the composition. ### Claim 17 (depends on 15) The method of claim 15, further comprising applying a coating on at least a portion of the sol-gel coating. ### Claim 18 A composition for application to a metal substrate, the composition comprising: a corrosion inhibitor comprising a lithium ion present in an amount of 0.02 g/1000 g composition to 12 g/1000 g composition, an alkali metal ion other than lithium, and a counter ion capable of forming a salt with the lithium ion, the alkali metal ion other than lithium, or combinations thereof, wherein the counter ion comprises a carbonate ion and/or a hydroxide ion; and a silane.