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公开(公告)号：US10793725B2
公开(公告)日：2020-10-06
申请号：US16355531
申请日：2019-03-15
申请人： The Boeing Company
发明人： Vijaykumar S. Ijeri , Om Prakash , Stephen P. Gaydos , Raghavan Subasri , Kalidindi Ramachandra Soma Raju , Dendi Sreenivas Reddy
IPC分类号： C07C45/80 , C09D5/08 , C09D5/00 , B05D1/02 , B05D1/18 , B05D3/06 , B05D5/00 , B05D7/14 , C23C26/00
摘要： A Zn—Al layered double hydroxide (LDH) composition is added to a solution including a corrosion inhibitor and stirred, and a precipitate of the solution is collected, washed, and dried to form a corrosion inhibiting material (CIM), in which the LDH composition is intercalated with the corrosion inhibitor. An inorganic CIM and/or an organic CIM may be formed. The organic CIM may be added to a sol-gel composition to form an organic CIM-containing sol-gel composition, and the inorganic CIM may be added to a sol-gel composition to form an inorganic CIM-containing sol-gel composition. Further, the organic CIM-containing sol-gel composition may be applied on a substrate (e.g., an aluminum alloy substrate) to form an organic CIM-containing sol-gel layer and cured by ultraviolet (UV) radiation, the inorganic CIM-containing sol-gel composition may be applied on the substrate to form an inorganic CIM-containing sol-gel layer and cured by UV radiation, and the sol-gel layers may be thermally cured.
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公开(公告)号：US10246594B2
公开(公告)日：2019-04-02
申请号：US15231668
申请日：2016-08-08
申请人： The Boeing Company
发明人： Vijaykumar S. Ijeri , Om Prakash , Stephen P. Gaydos , Raghavan Subasri , Kalidindi Ramachandra Soma Raju , Dendi Sreenivas Reddy
IPC分类号： C08G63/02 , C09D5/10 , B05D3/06 , C23F11/06 , C23F11/173 , C23C18/12 , C23C22/66 , C23C22/68 , C23C22/83
摘要： A corrosion-resistant coating on an aluminum-containing substrate such as an aluminum substrate, an aluminum alloy substrate (e.g., AA 2024, AA 6061, or AA7075), or other aluminum-containing substrate includes a corrosion inhibitor-incorporated Zn—Al layered double hydroxide (LDH) layer and a sol-gel layer. A zinc salt and a corrosion inhibitor (e.g., a salt of an oxyanion of a transition metal such as a vanadate) is dissolved to form a zinc-corrosion inhibitor solution, and the substrate is immersed in or otherwise contacted with the solution to form the corrosion inhibitor-incorporated Zn—Al LDH layer on the substrate. A sol-gel composition is applied on the corrosion inhibitor-incorporated Zn—Al LDH layer of the substrate to form a sol-gel layer, and the sol-gel layer is cured.
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公开(公告)号：US11739225B2
公开(公告)日：2023-08-29
申请号：US16533647
申请日：2019-08-06
申请人： The Boeing Company
发明人： Vijaykumar S. Ijeri , Om Prakash , Stephen P. Gaydos , Raghavan Subasri , Kalidindi Ramachandra Soma Raju , Dendi Sreenivas Reddy
IPC分类号： C09D5/08 , C09D7/65 , C09D7/80 , C23C18/12 , C08K3/32 , C09D5/10 , C09D183/08 , C09D5/00 , C09D5/03 , C09D7/40 , C09D201/10 , C08K3/18 , C08K3/28
CPC分类号： C09D5/08 , C08K3/32 , C09D5/106 , C09D7/65 , C09D7/80 , C09D183/08 , C23C18/122 , C23C18/1216 , C23C18/1225 , C23C18/1254 , C08K3/18 , C08K3/28 , C08K2003/328 , C08K2201/011 , C09D5/002 , C09D5/038 , C09D7/67 , C09D201/10 , C23C2222/20
摘要： A layered tetravalent metal phosphate composition (e.g., a layered zirconium phosphate composition) and a first corrosion inhibitor (e.g., cerium (III), a vanadate, a molybdate, a tungstate, a manganous, a manganate, a permanganate, an aluminate, a phosphonate, a thiazole, a triazole, and/or an imidazole) is dispersed in an aqueous solution and stirred to form a first solution. A precipitate of the first solution is collected and washed to form a first corrosion inhibiting material (CIM), which includes the first corrosion inhibitor intercalated in the layered tetravalent metal phosphate composition. The first CIM is added to a first sol-gel composition to form a first CIM-containing sol-gel composition. The first CIM-containing sol-gel composition is applied on a substrate to form a CIM-containing sol-gel layer, cured by UV radiation, and thermally cured to form a corrosion-resistant coating. One or more additional sol-gel composition may be applied on the substrate.
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公开(公告)号：US20180022936A1
公开(公告)日：2018-01-25
申请号：US15231617
申请日：2016-08-08
申请人： The Boeing Company
发明人： Vijaykumar S. Ijeri , Om Prakash , Stephen P. Gaydos , Raghavan Subasri , Kalidindi Ramachandra Soma Raju , Dendi Sreenivas Reddy
CPC分类号： C09D5/086 , B05D3/0254 , B05D3/067 , B05D7/14 , B05D7/572 , B05D7/576 , B05D2202/25 , B05D2518/12 , C08G77/58 , C09D5/08 , C09D183/14 , C23C18/122 , C23C18/1225 , C23C18/1241 , C23C18/1254
摘要： An alkoxysilane is contacted with water and an inorganic acid to form a first composition. A zirconium alkoxide is contacted with an organic acid to form a second composition. One or more alkoxysilanes and an organic acid are contacted with a mixture of the first and second compositions to form a sol-gel composition, to which a photoinitiator is added. The sol-gel composition has a ratio of a number of moles of silicon to a number of moles of zirconium (nSi/nZr) ranging from about 2 to about 10. The sol-gel composition is applied on a substrate (e.g., an aluminum alloy substrate) multiple times to form multiple sol-gel layers, and at least one of the sol-gel layers is cured by UV radiation. The multiple sol-gel layers are then thermally cured.
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公开(公告)号：US10738199B2
公开(公告)日：2020-08-11
申请号：US16355625
申请日：2019-03-15
申请人： The Boeing Company
发明人： Vijaykumar S. Ijeri , Om Prakash , Stephen P. Gaydos , Raghavan Subasri , Kalidindi Ramachandra Soma Raju , Dendi Sreenivas Reddy
IPC分类号： C08G63/02 , C09D5/10 , C23C18/12 , C23C22/66 , C23C22/68 , C23C22/83 , B05D3/06 , C23F11/06 , C23F11/173
摘要： A corrosion-resistant coating on an aluminum-containing substrate such as an aluminum substrate, an aluminum alloy substrate (e.g., AA 2024, AA 6061, or AA7075), or other aluminum-containing substrate includes a corrosion inhibitor-incorporated Zn—Al layered double hydroxide (LDH) layer and a sol-gel layer. A zinc salt and a corrosion inhibitor (e.g., a salt of an oxyanion of a transition metal such as a vanadate) is dissolved to form a zinc-corrosion inhibitor solution, and the substrate is immersed in or otherwise contacted with the solution to form the corrosion inhibitor-incorporated Zn—Al LDH layer on the substrate. A sol-gel composition is applied on the corrosion inhibitor-incorporated Zn—Al LDH layer of the substrate to form a sol-gel layer, and the sol-gel layer is cured.
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公开(公告)号：US10246593B2
公开(公告)日：2019-04-02
申请号：US15231654
申请日：2016-08-08
申请人： The Boeing Company
发明人： Vijaykumar S. Ijeri , Om Prakash , Stephen P. Gaydos , Raghavan Subasri , Kalidindi Ramachandra Soma Raju , Dendi Sreenivas Reddy
IPC分类号： C08G63/02 , C09D5/08 , B05D1/02 , B05D1/18 , B05D3/06 , B05D5/00 , B05D7/14 , C23C26/00 , C09D5/00
摘要： A Zn—Al layered double hydroxide (LDH) composition is added to a solution including a corrosion inhibitor and stirred, and a precipitate of the solution is collected, washed, and dried to form a corrosion inhibiting material (CIM), in which the LDH composition is intercalated with the corrosion inhibitor. An inorganic CIM and/or an organic CIM may be formed. The organic CIM may be added to a sol-gel composition to form an organic CIM-containing sol-gel composition, and the inorganic CIM may be added to a sol-gel composition to form an inorganic CIM-containing sol-gel composition. Further, the organic CIM-containing sol-gel composition may be applied on a substrate (e.g., an aluminum alloy substrate) to form an organic CIM-containing sol-gel layer and cured by ultraviolet (UV) radiation, the inorganic CIM-containing sol-gel composition may be applied on the substrate to form an inorganic CIM-containing sol-gel layer and cured by UV radiation, and the sol-gel layers may be thermally cured.
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公开(公告)号：US20180194949A1
公开(公告)日：2018-07-12
申请号：US15431506
申请日：2017-02-13
申请人： The Boeing Company
发明人： Vijaykumar S. Ijeri , Om Prakash , Stephen P. Gaydos , Raghavan Subasri , Kalidindi Ramachandra Soma Raju , Dendi Sreenivas Reddy
IPC分类号： C09D5/08 , C09D183/08 , C09D5/10 , C23C18/12
摘要： A layered tetravalent metal phosphate composition (e.g., a layered zirconium phosphate composition) and a first corrosion inhibitor (e.g., cerium (III), a vanadate, a molybdate, a tungstate, a manganous, a manganate, a permanganate, an aluminate, a phosphonate, a thiazole, a triazole, and/or an imidazole) is dispersed in an aqueous solution and stirred to form a first solution. A precipitate of the first solution is collected and washed to form a first corrosion inhibiting material (CIM), which includes the first corrosion inhibitor intercalated in the layered tetravalent metal phosphate composition. The first CIM is added to a first sol-gel composition to form a first CIM-containing sol-gel composition. The first CIM-containing sol-gel composition is applied on a substrate to form a CIM-containing sol-gel layer, cured by UV radiation, and thermally cured to form a corrosion-resistant coating. One or more additional sol-gel composition may be applied on the substrate.
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8.发明申请公开(公告)号：US20190211214A1
公开(公告)日：2019-07-11
申请号：US16355531
申请日：2019-03-15
申请人： The Boeing Company
发明人： Vijaykumar S. Ijeri , Om Prakash , Stephen P. Gaydos , Raghavan Subasri , Kalidindi Ramachandra Soma Raju , Dendi Sreenivas Reddy
CPC分类号： C09D5/086 , B05D1/02 , B05D1/18 , B05D3/067 , B05D5/00 , B05D7/14 , C09D5/00 , C09D5/084 , C23C26/00
摘要： A Zn—Al layered double hydroxide (LDH) composition is added to a solution including a corrosion inhibitor and stirred, and a precipitate of the solution is collected, washed, and dried to form a corrosion inhibiting material (CIM), in which the LDH composition is intercalated with the corrosion inhibitor. An inorganic CIM and/or an organic CIM may be formed. The organic CIM may be added to a sol-gel composition to form an organic CIM-containing sol-gel composition, and the inorganic CIM may be added to a sol-gel composition to form an inorganic CIM-containing sol-gel composition. Further, the organic CIM-containing sol-gel composition may be applied on a substrate (e.g., an aluminum alloy substrate) to form an organic CIM-containing sol-gel layer and cured by ultraviolet (UV) radiation, the inorganic CIM-containing sol-gel composition may be applied on the substrate to form an inorganic CIM-containing sol-gel layer and cured by UV radiation, and the sol-gel layers may be thermally cured.
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9.发明申请公开(公告)号：US20180022938A1
公开(公告)日：2018-01-25
申请号：US15231668
申请日：2016-08-08
申请人： The Boeing Company
发明人： Vijaykumar S. Ijeri , Om Prakash , Stephen P. Gaydos , Raghavan Subasri , Kalidindi Ramachandra Soma Raju , Dendi Sreenivas Reddy
IPC分类号： C09D5/10 , C23F11/06 , C23F11/173 , B05D3/06
CPC分类号： C09D5/106 , B05D3/06 , C23C18/1208 , C23C18/1237 , C23C18/1254 , C23C18/1295 , C23C22/66 , C23C22/68 , C23C22/83 , C23C2222/20 , C23F11/06 , C23F11/173
摘要： A corrosion-resistant coating on an aluminum-containing substrate such as an aluminum substrate, an aluminum alloy substrate (e.g., AA 2024, AA 6061, or AA7075), or other aluminum-containing substrate includes a corrosion inhibitor-incorporated Zn—Al layered double hydroxide (LDH) layer and a sol-gel layer. A zinc salt and a corrosion inhibitor (e.g., a salt of an oxyanion of a transition metal such as a vanadate) is dissolved to form a zinc-corrosion inhibitor solution, and the substrate is immersed in or otherwise contacted with the solution to form the corrosion inhibitor-incorporated Zn—Al LDH layer on the substrate. A sol-gel composition is applied on the corrosion inhibitor-incorporated Zn—Al LDH layer of the substrate to form a sol-gel layer, and the sol-gel layer is cured.
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10.发明申请公开(公告)号：US20180022937A1
公开(公告)日：2018-01-25
申请号：US15231654
申请日：2016-08-08
申请人： The Boeing Company
发明人： Vijaykumar S. Ijeri , Om Prakash , Stephen P. Gaydos , Raghavan Subasri , Kalidindi Ramachandra Soma Raju , Dendi Sreenivas Reddy
CPC分类号： C09D5/086 , B05D1/02 , B05D1/18 , B05D3/067 , B05D5/00 , B05D7/14 , C09D5/00 , C09D5/084 , C23C26/00
摘要： A Zn—Al layered double hydroxide (LDH) composition is added to a solution including a corrosion inhibitor and stirred, and a precipitate of the solution is collected, washed, and dried to form a corrosion inhibiting material (CIM), in which the LDH composition is intercalated with the corrosion inhibitor. An inorganic CIM and/or an organic CIM may be formed. The organic CIM may be added to a sol-gel composition to form an organic CIM-containing sol-gel composition, and the inorganic CIM may be added to a sol-gel composition to form an inorganic CIM-containing sol-gel composition. Further, the organic CIM-containing sol-gel composition may be applied on a substrate (e.g., an aluminum alloy substrate) to form an organic CIM-containing sol-gel layer and cured by ultraviolet (UV) radiation, the inorganic CIM-containing sol-gel composition may be applied on the substrate to form an inorganic CIM-containing sol-gel layer and cured by UV radiation, and the sol-gel layers may be thermally cured.
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