Patents Assigned to PRC
  • Publication number: 20230074169
    Abstract: 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: Application
    Filed: December 23, 2020
    Publication date: March 9, 2023
    Applicant: PRC-Desoto International, Inc.
    Inventors: Gordon L. Post, Michael A. Mayo, Justin J. Martin, Abdulrahman Dawoud Ibrahim
  • Publication number: 20230059160
    Abstract: 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: Application
    Filed: January 29, 2021
    Publication date: February 23, 2023
    Applicant: PRC-Desoto International, Inc.
    Inventors: Jiancheng Liu, Chu Ran Zheng, Millie Chang, Nagarajan Srivatsan
  • Patent number: 11579153
    Abstract: 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: Grant
    Filed: August 17, 2017
    Date of Patent: February 14, 2023
    Assignee: PRC BIOMEDICAL LTD.
    Inventor: Arie Huber
  • Patent number: 11543351
    Abstract: 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: Grant
    Filed: June 26, 2020
    Date of Patent: January 3, 2023
    Assignees: Beijing Zhong-Tianfeng Security Protection Technologies Co., Ltd., First Research Institute of The Ministry of Public Security of PRC
    Inventors: Bin Li, Qing Wang, Jun Han, Chuan Jin, Minnan Zhang
  • Publication number: 20220380904
    Abstract: 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: Application
    Filed: July 22, 2022
    Publication date: December 1, 2022
    Applicant: PRC-DeSoto International, Inc.
    Inventor: Eric L. Morris
  • Patent number: 11505702
    Abstract: 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: Grant
    Filed: April 5, 2019
    Date of Patent: November 22, 2022
    Assignee: PRC-DESOTO INTERNATIONAL, INC.
    Inventors: Amy Liane Toolis, Lorraine Hsu, Justin Martin
  • Patent number: 11485874
    Abstract: 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: Grant
    Filed: June 27, 2019
    Date of Patent: November 1, 2022
    Assignee: PRC-DESOTO INTERNATIONAL, INC.
    Inventors: Christopher A. Dacko, Michael A. Mayo, Gregory J. McCollum
  • Publication number: 20220325129
    Abstract: 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: Application
    Filed: June 23, 2020
    Publication date: October 13, 2022
    Applicant: PRC-Desoto International, Inc.
    Inventors: David J. Fortman, Marvin M. Pollum, Jr., Joseph P. Kriley, Brian K. Rearick, Maria S. French, Masayuki Nakajima
  • Patent number: 11466125
    Abstract: 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: Grant
    Filed: December 19, 2019
    Date of Patent: October 11, 2022
    Assignee: PRC-DESOTO INTERNATIONAL, INC.
    Inventor: Chandra Rao
  • Publication number: 20220260505
    Abstract: 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: Application
    Filed: June 10, 2020
    Publication date: August 18, 2022
    Applicants: PRC-DESOTO Intemational, Inc., KA Imaging Inc.
    Inventors: Soccorso Rizzello, Karim Sallaudin Karim, Christopher Charles Scott
  • Patent number: 11408077
    Abstract: 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: Grant
    Filed: June 1, 2020
    Date of Patent: August 9, 2022
    Assignee: PRC-DESOTO INTERNATIONAL, INC.
    Inventors: Eric L. Morris, Jane B. Moon
  • Patent number: 11407919
    Abstract: 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: Grant
    Filed: March 17, 2017
    Date of Patent: August 9, 2022
    Assignee: PRC-DESOTO INTERNATIONAL, INC.
    Inventors: Guangliang Tang, Mikhail Khudiakov
  • Publication number: 20220219844
    Abstract: 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: Application
    Filed: May 7, 2020
    Publication date: July 14, 2022
    Applicant: PRC-DESOTO International, Inc.
    Inventors: Paul Kuchinski, Ralph Roppo, Oscar Santillan
  • Patent number: 11344203
    Abstract: 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: Grant
    Filed: September 15, 2018
    Date of Patent: May 31, 2022
    Assignee: PRC CARDIO OPTIC LTD.
    Inventor: Arie Huber
  • Patent number: 11341418
    Abstract: 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: Grant
    Filed: November 13, 2018
    Date of Patent: May 24, 2022
    Assignee: Salveretec PRC
    Inventor: Gregory Evan Sharp
  • Patent number: 11313048
    Abstract: 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: Grant
    Filed: June 27, 2019
    Date of Patent: April 26, 2022
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Christopher A. Dacko, Michael A. Mayo, Gregory J. McCollum
  • Patent number: 11274167
    Abstract: 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: Grant
    Filed: June 27, 2019
    Date of Patent: March 15, 2022
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Christopher A. Dacko, Hongying Zhou
  • Patent number: 11236201
    Abstract: 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: Grant
    Filed: November 3, 2017
    Date of Patent: February 1, 2022
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Weibin Cui, Renhe Lin
  • Publication number: 20220025521
    Abstract: Methods and compositions for treating a substrate are provided. The composition contains a corrosion-inhibiting metal cation and a conjugated compound.
    Type: Application
    Filed: October 12, 2021
    Publication date: January 27, 2022
    Applicant: PRC-DeSoto International, Inc.
    Inventor: Eric L. Morris
  • Patent number: D940505
    Type: Grant
    Filed: July 21, 2021
    Date of Patent: January 11, 2022
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Paul Kuchinski, Goldi Singh, Oscar Santillan