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1.发明公开公开(公告)号：US20240271289A1
公开(公告)日：2024-08-15
申请号：US18646146
申请日：2024-04-25
申请人： Henkel AG & Co. KGaA
发明人： Ralf Posner , Marc Balzer , Kristof Wapner , Jan-Willem Brouwer
IPC分类号： C23F11/18 , C23F11/173
CPC分类号： C23F11/184 , C23F11/173
摘要： The present invention relates to a process for the anti-corrosion pretreatment of a multiplicity of components in series, wherein each component in the series at least partly has surfaces of zinc and undergoes successive process steps for the deposition of iron and for zinc phosphation. In the process step for the deposition of iron, the coating layer to be established is at least 10 milligrams of elemental iron per square meter of the zinc surfaces. The zinc phosphation subsequent to this deposition of iron takes place by means of an acidic aqueous composition which in addition to zinc ions, phosphate ions and free fluoride also comprises a particulate constituent dispersed in water which is at least partly composed of hopeite, phosphophyllite, scholzite and/or hureaulite, and is provided by means of an aqueous dispersion of these crystalline solids that is stabilized with at least one polymeric organic compound.
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公开(公告)号：US20240229247A9
公开(公告)日：2024-07-11
申请号：US17971078
申请日：2022-10-21
发明人： HANY MOHAMED ABD EL-LATEEF , MOHAMED GOUDA MAHMOUD , MAI MOSTAFA KHALAF ALI , REDA MOHAMED EL-SHISHTAWY
摘要： The acid-induced steel corrosion inhibitor based on rotten eggs provides a corrosion inhibitor that is biodegradable, has low toxicity, is water-soluble, easily produced, and is low-cost through the use of waste material, namely, white eggs (EWs). The corrosion inhibitor is added to a corrosive medium in an aqueous medium to protect the metal surfaces and steel interfaces on metal production equipment, such as pumps, tubing, and casing. The corrosion inhibitor based on rotten white eggs is loaded with metal nanoparticles (EWMNPs). The eco-friendly less destructive corrosion inhibitors based on metal nanoparticles synthesized with rotten white eggs are efficient to protect steel from corrosion, while still dissolving in oil streams produced without or with salt water and being soluble in acidic mediums containing chlorides. The corrosion inhibitors have low toxicity to marine life when discharged into the ocean, thereby protecting the marine life, particularly near the system's drain.
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公开(公告)号：US20240133045A1
公开(公告)日：2024-04-25
申请号：US18376608
申请日：2023-10-03
发明人： HANY MOHAMED ABD EL-LATEEF , MOHAMED GOUDA MAHMOUD , MAI MOSTAFA KHALAF ALI , REDA MOHAMED EL-SHISHTAWY
摘要： The acid-induced steel corrosion inhibitor based on rotten eggs provides a corrosion inhibitor that is biodegradable, has low toxicity, is water-soluble, easily produced, and is low-cost through the use of waste material, namely, white eggs (EWs). The corrosion inhibitor is added to a corrosive medium in an aqueous medium to protect the metal surfaces and steel interfaces on metal production equipment, such as pumps, tubing, and casing. The corrosion inhibitor based on rotten white eggs is loaded with metal nanoparticles (EWMNPs). The eco-friendly less destructive corrosion inhibitors based on metal nanoparticles synthesized with rotten white eggs are efficient to protect steel from corrosion, while still dissolving in oil streams produced without or with salt water and being soluble in acidic mediums containing chlorides. The corrosion inhibitors have low toxicity to marine life when discharged into the ocean, thereby protecting the marine life, particularly near the system's drain.
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公开(公告)号：US20240052496A1
公开(公告)日：2024-02-15
申请号：US18268270
申请日：2021-12-17
发明人： Changhoon Choi , Jongkook Kim , Hocheol Song
CPC分类号： C23C28/34 , C23C28/3225 , C23F11/18 , C23C2222/10 , C23C2222/20
摘要： A composition for surface treatment capable of imparting to a steel sheet, plate corrosion resistance, corrosion resistance of processed parts, pit corrosion resistance, blackening resistance, pipe forming oil infiltration, and alkali resistance, and improving foreign-matter defects; and a steel sheet using the same. The composition for surface treatment of a steel sheet includes a trivalent chromium compound; and adhesiveness improving agent containing a silane compound; an acidity modifier including acids; a crosslinking agent containing a silicate compound; a vanadium-based pit corrosion-improving agent; a polymer resin; and a solvent.
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公开(公告)号：US11884494B2
公开(公告)日：2024-01-30
申请号：US17967358
申请日：2022-10-17
申请人： Griffin Bros., Inc.
发明人： Matthew Jones , Ryan Kelly
IPC分类号： B65G43/02 , B05D7/02 , B05D7/22 , B65D65/46 , C23F11/12 , C23F11/18 , G06T7/00 , G06T7/11 , G06T7/13 , G06T7/254 , B65G15/00
CPC分类号： B65G43/02 , B05D7/02 , B05D7/22 , B65D65/46 , C23F11/124 , C23F11/181 , G06T7/0004 , G06T7/11 , G06T7/13 , G06T7/254 , B65G15/00 , B65G2203/0233 , B65G2203/0283 , B65G2203/041 , G06T2207/10016 , G06T2207/30108
摘要： A tire-enhancement product has a container comprising a dissolvable packaging material; and a solute encased in the container that is inert to the solute. The container is configured to be placed in an interior volume of a tire, to which solvent can be added. The container is configured to dissolve when placed in a predetermined solvent, and the solute is configured to mix with the solvent to form a tire-enhancement mixture.
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公开(公告)号：US11846028B2
公开(公告)日：2023-12-19
申请号：US16770031
申请日：2018-12-07
申请人： BOARD OF REGENTS OF THE NEVADA SYSTEM OF HIGHER EDUCATION, ON BEHALF OF THE UNIVERSITY OF NEVADA
发明人： Dev Chidambaram , David Rodriguez
CPC分类号： C23C22/44 , C23F11/187
摘要： Disclosed herein are embodiments of a molybdate-based composition and a conversion coating obtained therefrom that can replace conventional and toxic chromate-based conversion coatings in a variety of applications and industries. The molybdate-based composition provides conversion coatings that exhibit anodic inhibition and rapid repassivation when applied to objects, such as metal-based objects, and do not contain hexavalent chromium. The molybdate-based composition and conversion coating can be used to reduce corrosion. Embodiments of methods of protecting objects, such as metal surfaces, with the molybdate-based conversion coating also are disclosed.
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公开(公告)号：US11788192B2
公开(公告)日：2023-10-17
申请号：US16643098
申请日：2018-08-30
申请人： ARKEMA FRANCE
CPC分类号： C23F11/04 , C23F11/147 , C23F11/182 , C23G1/04
摘要： The present invention relates to a composition of at least one sulfonic acid in combination with an effective amount of at least one nitrosyl compound, acting as inhibitor of corrosion of metals by said at least one sulfonic acid.
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公开(公告)号：US11692275B2
公开(公告)日：2023-07-04
申请号：US17173063
申请日：2021-02-10
申请人： ECOLAB USA INC.
IPC分类号： C23F11/167 , C23F11/18 , H04L5/00 , H04W72/0446 , H04W72/1263 , H04W72/21 , C09K8/54
CPC分类号： C23F11/1676 , C09K8/54 , C23F11/184 , H04L5/0053 , H04W72/0446 , H04W72/1263 , H04W72/21 , C09K2208/32
摘要： Corrosion inhibitor compositions are provided that can include a mixture of one or more alkaline earth metals, one or more organic phosphates, one or more inorganic phosphates, optionally a dispersant, and hydroxyphosphono acetic acid and/or salts thereof and/or derivatives of hydroxyphosphono acetic acid and/or salts thereof. Methods of mitigating or inhibiting corrosion of metal surfaces are also disclosed. The methods can include the steps of adding a corrosion inhibitor composition as described in the present disclosure to a medium in contact with the metal surface and optionally to the metal surface before it is contacted by the medium.
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公开(公告)号：US11608560B2
公开(公告)日：2023-03-21
申请号：US17124708
申请日：2020-12-17
申请人： Baker Hughes
发明人： Carlos M. Menendez
摘要： An organic blend chemical additive comprising more than 50 wt. % organic solvent (e.g. methanol and/or ethylene glycol), less than 10 wt. % water, a nitrate salt, a maleic acid copolymer, and optionally an imidazoline may be delivered to a production well through a conduit having a stainless steel and corrosion resistant metal alloy surface, such as a capillary string or an umbilical tubing, the organic blend chemical additive being shown to be useful in inhibiting localized corrosion of and improving the repassivation of the equipment or conduit.
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10.发明授权公开(公告)号：US11596976B2
公开(公告)日：2023-03-07
申请号：US17882718
申请日：2022-08-08
发明人： Greg Andrews , George D. Andrews , Jeff Capell
IPC分类号： C09D183/06 , B05D7/00 , B05D1/02 , B05D7/16 , B05D7/26 , B05D5/00 , E21B41/00 , C09D5/00 , E21B43/26 , B05D1/18 , B05D1/38 , B05D7/14 , B05D7/22 , E21B33/03 , C09D7/20 , C09D7/63 , C09D7/62 , C08K5/5425 , C09D5/08 , C09D183/04 , E21B34/06 , C09D159/00 , C23F11/18 , C09D7/61 , B05D3/12 , C09D163/04 , E21B34/04 , C08G77/08 , C08G77/20 , C08K3/22 , C08K3/36 , C08K3/11 , C08K5/541 , C08K5/5415 , C08K5/544 , E21B17/02 , C09D163/00 , C08G59/02 , C08G59/06 , C08K5/5435
摘要： Coating compositions for coating an oilfield operational component, and related methods, may include in some aspects a coating composition having a trifunctional silane, a silanol, and a filler. The coating composition may be applied to a surface of the oilfield operational component that is configured to be exposed to a fluid. The coating composition may be applied to at least partially cover or coat the surface. The coating composition may be configured to chemically bond with a cured primer composition that includes an epoxy.
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