Patents Assigned to PRC
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Publication number: 20230074169Abstract: Disclosed is a system for treating a metal substrate comprising a conversion composition comprising trivalent chromium in an amount of 0.001 g/L to 20 g/L and a sealing composition comprising an ammonium-containing compound. Also disclosed is a method for treating a metal substrate that includes contacting at least a portion of a surface of the substrate with the conversion composition and then contacting at least a portion of the surface of the substrate with the sealing composition. Also disclosed is a substrate obtainable by treatment with the system and/or obtainable by the method of treatment.Type: ApplicationFiled: December 23, 2020Publication date: March 9, 2023Applicant: PRC-Desoto International, Inc.Inventors: Gordon L. Post, Michael A. Mayo, Justin J. Martin, Abdulrahman Dawoud Ibrahim
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Publication number: 20230059160Abstract: Photocurable adhesion-promoting compositions containing organic titanates and/or organic zirconates and partially reacted alkoxysilanes and the use of the photocurable adhesion-promoting compositions to provide adhesion between metal substrates and an overlying radiation-cured sealant are disclosed.Type: ApplicationFiled: January 29, 2021Publication date: February 23, 2023Applicant: PRC-Desoto International, Inc.Inventors: Jiancheng Liu, Chu Ran Zheng, Millie Chang, Nagarajan Srivatsan
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Patent number: 11579153Abstract: A diagnostic biological array, kit or system, and method of using same unit for conducting simultaneously blood tests and determining the presence of diseases, the blood type, and blood quality of a blood sample and its applications.Type: GrantFiled: August 17, 2017Date of Patent: February 14, 2023Assignee: PRC BIOMEDICAL LTD.Inventor: Arie Huber
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Patent number: 11543351Abstract: An all-in-one handheld machine for testing drugs in hairs comprises a handheld shell, a control mechanism, a fluorescent immune reagent card test mechanism, an identity recognition mechanism, and a control instruction input unit communicatively connected to the control mechanism are provided in the shell; a shell surface is provided with a reagent card inlet that corresponds to a reagent card socket of the test mechanism; the control mechanism is controllably connected to the test mechanism and the identity recognition mechanism, and is communicatively connected with a communication unit; the control mechanism, the test mechanism and the identity recognition mechanism are all electrically connected to a power supply module. The invention can achieve the functions of identity card reading and wireless data transmission, and the test for trace drug residues in hairs, thereby meeting the requirements for rapidity, portability and accuracy of an on-site test.Type: GrantFiled: June 26, 2020Date of Patent: January 3, 2023Assignees: Beijing Zhong-Tianfeng Security Protection Technologies Co., Ltd., First Research Institute of The Ministry of Public Security of PRCInventors: Bin Li, Qing Wang, Jun Han, Chuan Jin, Minnan Zhang
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Publication number: 20220380904Abstract: A composition for application to a substrate comprising a carrier, a permanganate ion source, and a corrosion inhibitor comprising a rare earth ion, an alkali metal ion, an alkaline earth metal ion, and/or a transition metal ion is disclosed. A substrate or article including the composition for application to a substrate, and a method of treating a substrate comprising applying the composition to a substrate to form a permanganate treated surface of the substrate and applying a lithium containing composition on the permanganate treated surface are also disclosed.Type: ApplicationFiled: July 22, 2022Publication date: December 1, 2022Applicant: PRC-DeSoto International, Inc.Inventor: Eric L. Morris
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Patent number: 11505702Abstract: Polysulfide compositions having a polyether synergist are disclosed. Polysulfide compositions that contain polyether synergists exhibit a rapid onset of cure and have acceptable final properties. The polysulfide compositions can be used as sealants.Type: GrantFiled: April 5, 2019Date of Patent: November 22, 2022Assignee: PRC-DESOTO INTERNATIONAL, INC.Inventors: Amy Liane Toolis, Lorraine Hsu, Justin Martin
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Patent number: 11485874Abstract: The present invention is directed to an addition polymer comprising an addition polymer backbone; at least one moiety comprising a phosphorous acid group, the moiety being covalently bonded to the addition polymer backbone by a carbon-carbon bond; and at least one carbamate functional group. The present invention is also directed towards methods of making the addition polymer, aqueous resinous dispersions and electrodepositable coating compositions comprising the addition polymer, methods of coating a substrate and coated substrates.Type: GrantFiled: June 27, 2019Date of Patent: November 1, 2022Assignee: PRC-DESOTO INTERNATIONAL, INC.Inventors: Christopher A. Dacko, Michael A. Mayo, Gregory J. McCollum
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Publication number: 20220325129Abstract: The present invention is directed to compositions comprising a first component, a second component, and elastomeric particles. The first component comprises an epoxy-containing compound. The second component comprises a diamine comprising a cyclic ring and/or a polyamine comprising a cyclic ring. The diamine may chemically react with the epoxy-containing compound. Optionally, the cyclic ring of the diamine and/or the polyamine has at least one carbon positioned between the amino functional groups and the cyclic ring structure. Optionally, at least 50% by weight of the elastomeric particles comprise a styrene butadiene core based on total weight of the elastomeric particles. The present invention is also directed to methods of making the compositions, methods of coating a substrate, and coated substrates.Type: ApplicationFiled: June 23, 2020Publication date: October 13, 2022Applicant: PRC-Desoto International, Inc.Inventors: David J. Fortman, Marvin M. Pollum, Jr., Joseph P. Kriley, Brian K. Rearick, Maria S. French, Masayuki Nakajima
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Patent number: 11466125Abstract: Polythioether prepolymers that have a low nucleation temperature. The symmetry of the polythioether prepolymers is modified by including pendent groups extending from the backbone of the polythioether prepolymer chain and/or the symmetry is modified by including segments having a different number of —C(R)2— groups between heteroatoms. The polythioether prepolymers are stable at low temperature storage conditions for an extended period of time. Compositions prepared using the low nucleation temperature polythioether prepolymers are useful as sealants.Type: GrantFiled: December 19, 2019Date of Patent: October 11, 2022Assignee: PRC-DESOTO INTERNATIONAL, INC.Inventor: Chandra Rao
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Publication number: 20220260505Abstract: A method and system of inspecting pre-molded parts comprising sealant material are disclosed. The method includes directing a micro-focused X-ray beam through a pre-molded sealant part comprising a sealant material to produce a phase-shifted refracted X-ray beam, and detecting the refracted X-ray beam with at least one phase contrast imaging X-ray detector to produce an image of the sealant material. The system includes at least one X-ray source structured and arranged to direct a micro-focused X-ray beam through a pre-molded sealant part comprising a sealant material to produce a phase-shifted refracted X-ray beam, and at least one phase contrast imaging X-ray detector structured and arranged to detect the refracted X-ray beam to produce an image of the sealant material.Type: ApplicationFiled: June 10, 2020Publication date: August 18, 2022Applicants: PRC-DESOTO Intemational, Inc., KA Imaging Inc.Inventors: Soccorso Rizzello, Karim Sallaudin Karim, Christopher Charles Scott
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Patent number: 11408077Abstract: A composition for application to a substrate comprising a carrier, a permanganate ion source, and a corrosion inhibitor comprising a rare earth ion, an alkali metal ion, an alkaline earth metal ion, and/or a transition metal ion is disclosed. A substrate or article including the composition for application to a substrate, and a method of treating a substrate comprising applying the composition to a substrate to form a permanganate treated surface of the substrate, and applying a lithium containing composition on the permanganate treated surface are also disclosed.Type: GrantFiled: June 1, 2020Date of Patent: August 9, 2022Assignee: PRC-DESOTO INTERNATIONAL, INC.Inventors: Eric L. Morris, Jane B. Moon
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Patent number: 11407919Abstract: The present invention is directed to a curable film-forming composition comprising: (a) a curing agent comprising reactive isocyanate functional groups; (b) a film-forming compound comprising functional groups reactive with the reactive isocyanate functional groups in (a); (c) a photo-latent catalyst; (d) a beta-diketone having a flash point higher than 60 C (140 F); and (e) a beta-diketone having a flash point lower than or equal to 60 C (140 F). The invention is further directed to methods of controlling the rate of cure and increasing the wet-edge time of a curable film-forming composition comprising an isocyanate functional curing agent, by adding to the curable film-forming composition a catalyst component comprising: (i) a photo-latent catalyst; (ii) a beta-diketone having a flash point higher than 60 C (140 F); and (iii) a beta-diketone having a flash point lower than or equal to 60 C (140 F).Type: GrantFiled: March 17, 2017Date of Patent: August 9, 2022Assignee: PRC-DESOTO INTERNATIONAL, INC.Inventors: Guangliang Tang, Mikhail Khudiakov
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Publication number: 20220219844Abstract: Sealant cartridge press fixtures are disclosed. The fixtures include a bracket comprising first and second side arms that receive a sealant cartridge therebetween. A transverse support bar connected to the first and second side arm is attached to a sealant filling nozzle. An air pressure cylinder mounted on the bracket includes a reciprocating piston rod that contacts and deforms a sidewall of the sealant cartridge at the beginning of a filling operation to allow trapped air to escape from the cartridge. An empty sealant cartridge having a slidable plunger therein is mounted at its front end on the sealant filling nozzle. The sealant is initially dispensed into the cartridge in the space between the front end of the cartridge and the plunger. While pressing and deforming the sidewall, it temporarily creates a gap between an interior surface of the sidewall and a plunger. The gap allows unwanted trapped air to escape from the sealant cartridge.Type: ApplicationFiled: May 7, 2020Publication date: July 14, 2022Applicant: PRC-DESOTO International, Inc.Inventors: Paul Kuchinski, Ralph Roppo, Oscar Santillan
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Patent number: 11344203Abstract: A system is provided for scanning organs in a human body, preferably a human's cardiovascular system more preferably the heart and other arteries. The system includes an extracorporeal opto-acoustic scanning device for scanning from outside of the body and optionally in correlation to inside optic imaging Both comprise a laser or other opto acoustic light and a transducer. The laser being arranged to emit laser pulses towards and/or into the organ system and the transducer being arranged to detect acoustic waves received back from the organ system for imaging the scanned tissue.Type: GrantFiled: September 15, 2018Date of Patent: May 31, 2022Assignee: PRC CARDIO OPTIC LTD.Inventor: Arie Huber
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Patent number: 11341418Abstract: The present disclosure describes computer-implemented methods and systems for providing and maintaining a limited iterative ontological notation (FIG. 1), built upon a three-value logic of existence or equivalence of patterns. Methods may be embodied as a self-referencing table with a finite collection of columns or as a property graph with a small count of fixed properties and a finite collection of edge types, each carrying a particular ontological interpretation and use. Isolation of information content from context and application of three value logic to pattern recognition produces a finite set of indexed notations which allow for leveraging of a fixed schema to enhance computing performance, reduce memory utilization and improve accessibility though enabling a user interface that does not require prior knowledge of graph database programming languages.Type: GrantFiled: November 13, 2018Date of Patent: May 24, 2022Assignee: Salveretec PRCInventor: Gregory Evan Sharp
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Patent number: 11313048Abstract: The present invention is directed to an addition polymer comprising an addition polymer backbone; at least one moiety comprising a sulfonic acid group; and at least one carbamate functional group. The present invention is also directed towards methods of making the addition polymer, aqueous resinous dispersions comprising the addition polymer, methods of coating a substrate and coated substrates.Type: GrantFiled: June 27, 2019Date of Patent: April 26, 2022Assignee: PRC-DeSoto International, Inc.Inventors: Christopher A. Dacko, Michael A. Mayo, Gregory J. McCollum
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Patent number: 11274167Abstract: The present invention is directed to a compound of formula I, wherein R1 comprises hydrogen, an alkyl group, or an aryl group; R2 comprises hydrogen or a methyl group; R3 comprises a divalent organic group; R4 comprises a divalent organic group; and X comprises oxygen, NH, or N(R5), wherein R5 comprises a monovalent organic group. The present invention is also directed towards polymers comprising a pendant carbamate-functional moiety comprising the structure: wherein R1 comprises hydrogen, an alkyl group, or an aryl group; R2 comprises hydrogen or a methyl group; R3 comprises a divalent organic group; R4 comprises a divalent organic group; and X comprises oxygen, NH, or N(R5) wherein R5 comprises a monovalent organic group. The present invention is also directed to methods of preparing such compounds and polymers, compositions comprising such polymers, and coatings produced from such compositions.Type: GrantFiled: June 27, 2019Date of Patent: March 15, 2022Assignee: PRC-DeSoto International, Inc.Inventors: Christopher A. Dacko, Hongying Zhou
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Patent number: 11236201Abstract: Sulfur-containing poly(alkenyl) ethers can be incorporated into the backbone of polythioether prepolymers and can be used as curing agents in thiol-terminated polythioether prepolymer compositions. Cured sealants prepared using compositions containing sulfur-containing poly(alkenyl) ether-containing polythioether prepolymers and/or sulfur-containing poly(alkenyl) ether curing agents exhibit improved physical properties suitable for use in aerospace sealant applications.Type: GrantFiled: November 3, 2017Date of Patent: February 1, 2022Assignee: PRC-DeSoto International, Inc.Inventors: Weibin Cui, Renhe Lin
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Publication number: 20220025521Abstract: Methods and compositions for treating a substrate are provided. The composition contains a corrosion-inhibiting metal cation and a conjugated compound.Type: ApplicationFiled: October 12, 2021Publication date: January 27, 2022Applicant: PRC-DeSoto International, Inc.Inventor: Eric L. Morris
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Patent number: D940505Type: GrantFiled: July 21, 2021Date of Patent: January 11, 2022Assignee: PRC-DeSoto International, Inc.Inventors: Paul Kuchinski, Goldi Singh, Oscar Santillan