Patents Assigned to PRC-Desoto International, Inc.
  • Polyurea compositions and methods of use
    Patent number: 8729193
    Abstract: Disclosed are polyurea compositions comprising the reaction products of a polyformal-isocyanate prepolymer and a curing agent comprising an amine. The compositions are useful as sealants in aerospace applications.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: May 20, 2014
    Assignee: PRC DeSoto International, Inc.
    Inventors: Stephen J. Hobbs, Juexiao Cai, Marfi Ito, Renhe Lin
  • Compositions comprising thiol-terminated polymers and sulfur-containing ethylenically unsaturated silanes and related cured sealants
    Patent number: 8729198
    Abstract: Disclosed are compositions that include: a) a thiol-terminated polymer; and b) a sulfur-containing ethylenically unsaturated silane. Related products, such as sealants, that include polymers derived from such compositions, are also disclosed.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: May 20, 2014
    Assignee: PRC DeSoto International, Inc.
    Inventors: Raquel Keledjian, Renhe Lin, Chandra Rao, Bruce Virnelson
  • Multifunctional sulfur-containing polymers, compositions thereof and methods of use
    Patent number: 8729216
    Abstract: Disclosed are multifunctional sulfur-containing polymers that are the reaction products of a sulfur-containing diol, a polyol containing at least three hydroxyl groups per polyol molecule, and an aldehyde, a ketone, or a combination thereof. Sealant compositions comprising the multifunctional sulfur-containing polymers are also disclosed.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: May 20, 2014
    Assignee: PRC DeSoto International, Inc.
    Inventors: Stephen J. Hobbs, Gregory J. McCollum, Juexiao Cai, Marfi Ito, Lawrence G. Anderson, Renhe Lin
  • Polyfunctional sulfur-containing epoxies and compositions thereof
    Patent number: 8710159
    Abstract: Disclosed are polyfunctional sulfur-containing epoxies and compositions containing polyfunctional sulfur-containing epoxies. The polyfunctional sulfur-containing epoxies may be used as a curing agent and combined with polythioethers and/or polysulfides used to provide high elongation sealants useful in aerospace applications.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: April 29, 2014
    Assignee: PRC DeSoto International, Inc.
    Inventors: Timothy Blackford, Juexiao Cai, Raquel Keledjian, Renhe Lin, Jose Luzano, Chandra B. Rao, Bruce Virnelson
  • TERMINAL-MODIFIED DIFUNCTIONAL SULFUR-CONTAINING POLYMERS, COMPOSITIONS THEREOF AND METHODS OF USE
    Publication number: 20140106077
    Abstract: Disclosed are terminal-modified difunctional sulfur-containing polymers that are the reaction products of a sulfur-containing diol, an aldehyde or a ketone, and a compound containing a functional group. Compositions comprising the terminal-modified difunctional sulfur-containing polymers useful as sealants are also disclosed.
    Type: Application
    Filed: December 19, 2013
    Publication date: April 17, 2014
    Applicant: PRC-DeSoto International, Inc.
    Inventors: Stephen J. Hobbs, Gregory J. McCollum, Lawrence G. Anderson, Renhe Lin
  • Terminal-modified difunctional sulfur-containing polymers, compositions thereof and methods of use
    Patent number: 8680214
    Abstract: Disclosed are terminal-modified difunctional sulfur-containing polymers that are the reaction products of a sulfur-containing diol, an aldehyde or a ketone, and a compound containing a functional group. Compositions comprising the terminal-modified difunctional sulfur-containing polymers useful as sealants are also disclosed.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: March 25, 2014
    Assignee: PRC DeSoto International, Inc.
    Inventors: Stephen J. Hobbs, Gregory J. McCollum, Lawrence G. Anderson, Renhe Lin
  • Solar reflective coatings systems
    Patent number: 8679617
    Abstract: Disclosed are infrared reflective coating systems. The coating compositions include an infrared transparent pigment and an infrared reflective pigment.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: March 25, 2014
    Assignee: PRC DeSoto International, Inc.
    Inventors: William E. Eibon, Brian Dillon
  • ADHESION PROMOTING ADDUCTS CONTAINING METAL LIGANDS, COMPOSITIONS THEREOF, AND USES THEREOF
    Publication number: 20140051789
    Abstract: Disclosed are adhesion promoting adducts containing adhesion promoting groups and metal ligands and compositions such as sealant compositions useful in aerospace applications comprising the adhesion promoting adducts. The adhesion promoting adducts are useful as adhesion promoting additives or as a copolymerizable reactant in polymer compositions.
    Type: Application
    Filed: October 29, 2013
    Publication date: February 20, 2014
    Applicant: PRC-DeSoto International, Inc.
    Inventors: Chandra Rao, Jun Deng, Renhe Lin
  • PERFLUOROETHER SEALANT COMPOSITIONS
    Publication number: 20140027057
    Abstract: Disclosed are perfluoroethers and perfluoroether compositions useful in high temperature aerospace applications. The perfluoroethers can be adapted for use with various curing chemistries.
    Type: Application
    Filed: July 30, 2012
    Publication date: January 30, 2014
    Applicant: PRC-DeSoto International, Inc.
    Inventors: Juexiao Cai, Renhe Lin, Chandra Rao
  • POLYFUNCTIONAL SULFUR-CONTAINING EPOXIES AND COMPOSITIONS THEREOF
    Publication number: 20130345372
    Abstract: Disclosed are polyfunctional sulfur-containing epoxies and compositions containing polyfunctional sulfur-containing epoxies. The polyfunctional sulfur-containing epoxies may be used as a curing agent and combined with polythioethers and/or polysulfides used to provide high elongation sealants useful in aerospace applications.
    Type: Application
    Filed: June 21, 2012
    Publication date: December 26, 2013
    Applicant: PRC-DeSoto International, Inc.
    Inventors: Timothy Blackford, Juexiao Cai, Raquel Keledjian, Renhe Lin, Jose Lozano, Chandra B. Rao, Bruce Virnelson
  • MOISTURE-CURABLE, AMINE-CATALYZED SULFUR-CONTAINING POLYMER COMPOSITIONS
    Publication number: 20130344251
    Abstract: Disclosed are moisture-curable, amine-catalyzed compositions containing sulfur-containing polymers and blocked basic catalysts having extended pot life. The use of the moisture-curable, amine-catalyzed compositions in aerospace sealant applications is also disclosed.
    Type: Application
    Filed: June 21, 2012
    Publication date: December 26, 2013
    Applicant: PRC-DeSoto International, Inc.
    Inventors: Juexiao Cai, Renhe Lin
  • COATING COMPOSITIONS WITH AN ISOCYANATE-FUNCTIONAL PREPOLYMER DERIVED FROM A TRICYCLODECANE POLYOL, METHODS FOR THEIR USE, AND RELATED COATED SUBSTRATES
    Publication number: 20130344253
    Abstract: Coating compositions include (a) an isocyanate functional prepolymer derived from a polyisocyanate and a tricyclodecane-containing polyester polyol; and (b) a blocked amine curing agent.
    Type: Application
    Filed: June 26, 2012
    Publication date: December 26, 2013
    Applicant: PRC-DeSoto International, Inc.
    Inventors: Siamanto Abrami, Guangliang Tang
  • COPOLYMERIZABLE SULFUR-CONTAINING ADHESION PROMOTERS AND COMPOSITIONS THEREOF
    Publication number: 20130344287
    Abstract: Disclosed are sulfur-containing polymers containing copolymerizable adhesion promoters and compositions including sealant compositions useful in aerospace applications comprising sulfur-containing polymers containing copolymerizable adhesion promoters. In particular, polythioethers and polysulfides incorporating copolymerizable adhesion promoters are disclosed.
    Type: Application
    Filed: July 12, 2013
    Publication date: December 26, 2013
    Applicant: PRC-DeSoto International, Inc.
    Inventors: Raquel Keledjian, Renhe Lin, Bruce Virnelson
  • MICHAEL ADDITION CURING CHEMISTRIES FOR SULFUR-CONTAINING POLYMER COMPOSITIONS
    Publication number: 20130345371
    Abstract: The use of Michael addition curing chemistries in compositions comprising sulfur-containing polymers such as polythioethers and polysulfides useful in aerospace sealant applications are disclosed. Sulfur-containing adducts comprising terminal Michael acceptor groups are also disclosed.
    Type: Application
    Filed: June 21, 2012
    Publication date: December 26, 2013
    Applicant: PRC-DeSoto International, Inc.
    Inventors: Lawrence G. Anderson, Juexiao Cai, Marfi Ito, Raquel Keledjian, Renhe Lin
  • TERMINAL-MODIFIED DIFUNCTIONAL SULFUR-CONTAINING POLYMERS, COMPOSITIONS THEREOF AND METHODS OF USE
    Publication number: 20130310531
    Abstract: Disclosed are terminal-modified difunctional sulfur-containing polymers that are the reaction products of a sulfur-containing diol, an aldehyde or a ketone, and a compound containing a functional group. Compositions comprising the terminal-modified difunctional sulfur-containing polymers useful as sealants are also disclosed.
    Type: Application
    Filed: July 25, 2013
    Publication date: November 21, 2013
    Applicant: PRC-DeSoto International, Inc.
    Inventors: Stephen J. Hobbs, Gregory J. McCollum, Lawrence G. Anderson, Renhe Lin
  • Selectively strippable intermediate coatings and methods of use
    Patent number: 8557386
    Abstract: Selectively strippable coating compositions comprising at least one amine-terminated polyamide are disclosed. Multi-layer coatings formed from the selectively strippable coating compositions, and methods of using coating compositions comprising at least one amine-terminated polyamide to facilitate selective removal of an adjoining coating by a stripper are also disclosed.
    Type: Grant
    Filed: November 17, 2004
    Date of Patent: October 15, 2013
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Suresh G. Sawant, Chandra B. Rao, Srintorn Charonsuck
  • Terminal-modified difunctional sulfur-containing polymers, compositions thereof and methods of use
    Patent number: 8541513
    Abstract: Disclosed are terminal-modified difunctional sulfur-containing polymers that are the reaction products of a sulfur-containing diol, an aldehyde or a ketone, and a compound containing a functional group. Compositions comprising the terminal-modified difunctional sulfur-containing polymers useful as sealants are also disclosed.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: September 24, 2013
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Stephen J. Hobbs, Gregory J. McCollum, Lawrence G. Anderson, Renhe Lin
  • Coating compositions exhibiting corrosion resistance properties, related coated substrates, and methods
    Patent number: 8541486
    Abstract: Coating compositions are disclosed that include corrosion resisting particles such that the coating composition can exhibit corrosion resistance properties. Also disclosed are substrates at least partially coated with a coating deposited from such a composition and multi-component composite coatings, wherein at least one coating later is deposited from such a coating composition. Methods and apparatus for making ultrafine solid particles are also disclosed.
    Type: Grant
    Filed: October 8, 2012
    Date of Patent: September 24, 2013
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Edward R. Millero, John R. Schneider, Cheng-Hung Hung, Noel R. Vanier
  • Polyurethane coatings with improved interlayer adhesion
    Patent number: 8541059
    Abstract: Polyurethane coating compositions comprising a mixture of aromatic and aliphatic isocyanate, and a mixture of polyol resin are disclosed. Methods for treating an aged substrate are also disclosed.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: September 24, 2013
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Jak Aklian, Guangliang Tang, Siamanto Abrami
  • Copolymerizable sulfur-containing adhesion promoters and compositions thereof
    Patent number: 8513339
    Abstract: Disclosed are sulfur-containing polymers containing copolymerizable adhesion promoters and compositions including sealant compositions useful in aerospace applications comprising sulfur-containing polymers containing copolymerizable adhesion promoters. In particular, polythioethers and polysulfides incorporating copolymerizable adhesion promoters are disclosed.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: August 20, 2013
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Raquel Keledjian, Renhe Lin, Bruce Vimelson