Patents Assigned to PRC-Desoto International, Inc.
  • Publication number: 20200224038
    Abstract: A coating comprising epoxy functional resin, corrosion resistant particles, and a multi-functional crosslinker are disclosed as are methods of using such a coating to coat at least a portion of a substrate and a substrate coated thereby.
    Type: Application
    Filed: March 30, 2020
    Publication date: July 16, 2020
    Applicant: PRC-DeSoto International, Inc.
    Inventors: Didier Labouche, Marie-Noelle Maillet, Siamanto Abrami
  • Publication number: 20200199300
    Abstract: Compositions that are curable by free radical redox reactions are disclosed. Free radical curing reactions between polythiols and polyalkyenyls are initiated by the reaction of metal complexes and organic peroxides. The compositions are useful as sealants.
    Type: Application
    Filed: June 8, 2018
    Publication date: June 25, 2020
    Applicant: PRC-DeSoto International, Inc.
    Inventors: JianCheng Liu, Srikant Pathak, Bruce Virnelson
  • Publication number: 20200172777
    Abstract: Compositions that are resistant to hydraulic fluid and aviation fuel contain sulfur-containing prepolymers and solvent-resistant organic fillers. The compositions are useful in aerospace sealant applications.
    Type: Application
    Filed: February 5, 2020
    Publication date: June 4, 2020
    Applicant: PRC-DeSoto International, Inc.
    Inventors: Renhe Lin, Weibin Cui
  • Patent number: 10619053
    Abstract: A solar reflective coating composition includes: a film-forming resin; a plurality of near-IR transparent pigments dispersed in the film-forming resin, the plurality of near-IR transparent pigments including a first perylene pigment and a second perylene pigment different from the first perylene pigment; and a near-IR reflective pigment dispersed in the film-forming resin, the near-IR reflective pigment different from the first perylene pigment and the second perylene pigment. When formed into a cured coating over a substrate, the cured coating exhibits an off-white or grey color. The solar reflective coating composition is substantially free of carbon black. The present invention is also directed to a substrate having a surface at least partially coated with a solar reflective coating composition and a method of preparing a low weight aerospace component.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: April 14, 2020
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Stephen G. McQuown, John Slomski, Stuart D. Hellring, LuAnn Holsing, Tejveen Gill
  • Patent number: 10597360
    Abstract: Hydroxyl-containing bis(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 hydroxyl-containing bis(alkenyl) ether-containing polythioether prepolymers and/or hydroxyl-containing bis(alkenyl) ether curing agents exhibit improved physical properties such as rapid curing and compatibility with fillers suitable for use in aerospace sealant applications.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: March 24, 2020
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Weibin Cui, Renhe Lin
  • Patent number: 10597565
    Abstract: Compositions that are resistant to hydraulic fluid and aviation fuel contain sulfur-containing prepolymers and solvent-resistant organic fillers. The compositions are useful in aerospace sealant applications.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: March 24, 2020
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Renhe Lin, Weibin Cui
  • Patent number: 10577507
    Abstract: A composition for application to a metal substrate comprises an aqueous carrier, a hydroxide anion and/or a phosphate anion, and a corrosion inhibitor comprising an azole compound, a rare earth ion, an alkali earth metal ion, and/or a transition metal ion. A substrate or article includes the composition for application to a metal substrate and a coating on the composition. A method of fabricating a substrate comprises applying the composition to a substrate, allowing the composition to dry to form a dried composition, and applying a coating on the dried composition.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: March 3, 2020
    Assignee: PRC-DeSoto International, Inc.
    Inventor: Eric L. Morris
  • Publication number: 20200002566
    Abstract: The present invention is directed to a phosphated epoxy resin comprising at least one terminal group comprising a phosphorous atom covalently bonded to the resin by a carbon-phosphorous bond or by a phosphoester linkage; and at least one carbamate functional group. The present invention is also directed towards aqueous resinous dispersions comprising the phosphated epoxy resin, methods of coating a substrate, coated substrates, and methods of making a phosphated epoxy resin.
    Type: Application
    Filed: June 27, 2018
    Publication date: January 2, 2020
    Applicant: PRC-DeSoto International, Inc.
    Inventors: Christopher A. Dacko, Michael A. Mayo, Gregory J. McCollum, Robin M. Peffer, Se Ryeon Lee
  • Publication number: 20200002832
    Abstract: Methods for treating a substrate are disclosed. The substrate is deoxidized and then immersed in an electrodepositable pretreatment composition comprising a lanthanide series element and/or a Group IIIB metal, an oxidizing agent, and a metal-complexing agent to deposit a coating from the electrodepositable pretreatment composition onto a surface of the substrate. Optionally, the electrodepositable pretreatment composition may comprise a surfactant. A coating from a spontaneously depositable pretreatment composition comprising a Group IIIB and/or Group IVB metal may be deposited on the substrate surface prior to electrodepositing a coating from the electrodepositable pretreatment composition. Following electrodeposition of the electrodepositable pretreatment composition, the substrate optionally may be contacted with a sealing composition comprising phosphate and a Group IIIB and/or IVB metal. Substrates treated according to the methods also are disclosed.
    Type: Application
    Filed: September 10, 2019
    Publication date: January 2, 2020
    Applicant: PRC-DeSoto International, Inc.
    Inventors: Gordon L. Post, Michael A. Mayo, Edward F. Rakiewicz, Michael J. Pawlik
  • Publication number: 20200002831
    Abstract: Methods for treating a substrate are disclosed. The substrate is deoxidized and then immersed in an electrodepositable pretreatment composition comprising a lanthanide series element and/or a Group IIIB metal, an oxidizing agent, and a metal-complexing agent to deposit a coating from the electrodepositable pretreatment composition onto a surface of the substrate. Optionally, the electrodepositable pretreatment composition may comprise a surfactant. A coating from a spontaneously depositable pretreatment composition comprising a Group IIIB and/or Group IVB metal may be deposited on the substrate surface prior to electrodepositing a coating from the electrodepositable pretreatment composition. Following electrodeposition of the electrodepositable pretreatment composition, the substrate optionally may be contacted with a sealing composition comprising phosphate and a Group IIIB and/or IVB metal. Substrates treated according to the methods also are disclosed.
    Type: Application
    Filed: September 10, 2019
    Publication date: January 2, 2020
    Applicant: PRC-DeSoto International, Inc.
    Inventors: Gordon L. Post, Michael A. Mayo, Edward F. Rakiewicz, Michael J. Pawlik
  • Publication number: 20190389635
    Abstract: Loading systems for adhesives and sealants are disclosed in which flexible sealant/adhesive-containing cartridges may be loaded through the front end of a retainer into a sleeve for dispensing, and then removed from the front end of the retainer when the cartridges are spent.
    Type: Application
    Filed: June 21, 2019
    Publication date: December 26, 2019
    Applicant: PRC-DeSoto International, Inc.
    Inventors: Paul Kuchinski, Oscar Santillan
  • Publication number: 20190382532
    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: Application
    Filed: November 3, 2017
    Publication date: December 19, 2019
    Applicant: PRC-DeSoto International, Inc.
    Inventors: WEIBIN CUI, RENHE LIN
  • Patent number: 10456806
    Abstract: Luminescent tools for applying or removing sealants and adhesives are disclosed. The tools may be provided in the form of spatulas, scrapers, spreaders, smoothers and the like having surfaces that contact the sealant or adhesive material during application or removal. The tools or components thereof are made of load-bearing polymeric materials including a luminescent material. The luminescent tools may be seen and recovered when used in dark environments, such as during aircraft fabrication operations.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: October 29, 2019
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Wei Chen, Paul Lovik, James Enochs, Ralph Roppo
  • Publication number: 20190316261
    Abstract: Disclosed is a method of treating a substrate. The surface is contacted with a sealing composition comprising a lithium cation; and optionally, with conversion composition comprising a cation of a lanthanide, a Group IIIB, and/or a Group IVB metal. The conversion composition is applied to provide a film on the substrate surface resulting in a level of the lanthanide, Group IIIB metal, and/or Group IV metal thereon of at least 100 counts greater than on a surface of a substrate that does not have the film thereon as measured by X-ray fluorescence (measured using X-Met 7500, Oxford Instruments; operating parameters 60 second timed assay, 15 Kv, 45 ?A, filter 3, T(p)=1.5 ?s for lanthanides, Group IIIB metals, and Group IVB metals except zirconium; operating parameters 60 second timed assay, 40 Kv, 10 ?A, filter 4, T(p)=1.5 ?s for zirconium). A substrate obtainable by the methods also is disclosed.
    Type: Application
    Filed: August 14, 2017
    Publication date: October 17, 2019
    Applicant: PRC-DeSoto International, Inc.
    Inventors: Eric L. MORRIS, Gordon L. POST, Michael A. MAYO, Brian C. OKERBERG, Mary Lyn Chong LIM
  • Patent number: 10435806
    Abstract: Methods for treating a substrate are disclosed. The substrate is deoxidized and then immersed in an electrodepositable pretreatment composition comprising a lanthanide series element and/or a Group IIIB metal, an oxidizing agent, and a metal-complexing agent to deposit a coating from the electrodepositable pretreatment composition onto a surface of the substrate. Optionally, the electrodepositable pretreatment composition may comprise a surfactant. A coating from a spontaneously depositable pretreatment composition comprising a Group IIIB and/or Group IVB metal may be deposited on the substrate surface prior to electrodepositing a coating from the electrodepositable pretreatment composition. Following electrodeposition of the electrodepositable pretreatment composition, the substrate optionally may be contacted with a sealing composition comprising phosphate and a Group IIIB and/or IVB metal. Substrates treated according to the methods also are disclosed.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: October 8, 2019
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Gordon L. Post, Michael A. Mayo, Edward F. Rakiewicz, Michael J. Pawlik
  • Patent number: 10370765
    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.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: August 6, 2019
    Assignee: PRC-Desoto International, Inc.
    Inventor: Eric L. Morris
  • Patent number: 10370561
    Abstract: Urethane/urea-containing bis(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 urethane/urea-containing bis(alkenyl) ether-containing polythioether prepolymers and/or urethane/urea-containing bis(alkenyl) ether curing agents exhibit improved physical properties suitable for use in aerospace sealant applications.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: August 6, 2019
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Weibin Cui, Renhe Lin
  • Patent number: 10351674
    Abstract: Sulfur-containing polymeric particles having a high sulfur content can be prepared using emulsion polymerization. The sulfur-containing polymeric particles are useful in aerospace coatings and sealants.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: July 16, 2019
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Amy Liane Toolis, Lawrence G. Anderson
  • Publication number: 20190177855
    Abstract: Disclosed is a method of making a treatment composition. A lithium cation and carbon dioxide are combined in an aqueous medium to form the treatment composition comprising lithium carbonate in situ. Also disclosed is a system and method for maintaining a treatment bath formed from a treatment composition comprising lithium carbonate. Carbon dioxide and/or a lithium salt are supplied to the bath in an amount sufficient to maintain the pH of the treatment bath at 9.5 to 12.5, lithium in an amount of 5 ppm to 5,500 ppm (calculated as lithium cation) and carbonate in an amount of 15 ppm to 25,000 ppm (calculated as carbonate) based on total weight of the treatment bath. Substrates treated with the composition, system and method also are disclosed.
    Type: Application
    Filed: August 14, 2017
    Publication date: June 13, 2019
    Applicant: PRC-DeSoto International, Inc.
    Inventors: Gordon L. Post, Michael J. Pawlik, Eric L. Morris, Edward F. Rakiewicz, Michael A. Mayo
  • Publication number: 20190169465
    Abstract: Actinic radiation-curable compositions containing polythiols and urethane/urea-containing polyalkenyl prepolymers that can be used for aerospace coatings and sealants. The coatings can be applied to surfaces and rapidly cured.
    Type: Application
    Filed: August 8, 2017
    Publication date: June 6, 2019
    Applicant: PRC-DeSoto International, Inc.
    Inventors: Bruce Virnelson, Chandra Rao, Renhe Lin