Patents by Inventor Lawrence G. Anderson

Lawrence G. Anderson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Coating/sealant systems, aqueous resinous dispersions, methods for making aqueous resinous dispersions, and methods of electrocoating
    Patent number: 9029437
    Abstract: A coating/sealant system that includes a coating and a sealant deposited over at least a portion of the coating, in which the coating includes a reaction product formed from reactants comprising a phosphated epoxy resin and a curing agent, and the sealant includes a sulfur-containing polymer.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: May 12, 2015
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Lawrence G. Anderson, Elizabeth A. Furar, Thor G. Lingenfelter, Michael A. Mayo, Robin M. Peffer, Joseph Theodore Valko
  • Controlled release amine-catalyzed, Michael addition-curable sulfur-containing polymer compositions
    Patent number: 9018322
    Abstract: Compositions comprising sulfur-containing polymers such as polythioethers, Michael acceptors, and controlled release amine catalysts employing Michael addition curing chemistries useful in aerospace sealant applications are disclosed. The compositions exhibit extended pot life and the rate of curing can be tailored for specific applications.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: April 28, 2015
    Assignee: FRC-DeSoto International, Inc.
    Inventors: Juexiao Cai, Lawrence G. Anderson, Renhe Lin
  • Multifunctional sulfur-containing polymers, compositions thereof and methods of use
    Patent number: 9012592
    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: September 29, 2014
    Date of Patent: April 21, 2015
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Steven J. Hobbs, Gregory J. McCollum, Juexiao Cai, Marfi Ito, Lawrence G. Anderson, Renhe Lin
  • Controlled-release amine-catalyzed, sulfur-containing polymer and epdxy compositions
    Patent number: 9006360
    Abstract: Compositions comprising sulfur-containing polymers such as polythioethers and polysulfides, polyepoxides, and controlled-release amine catalysts useful in aerospace sealant applications are disclosed. The compositions exhibit extended pot life and the rate of curing can be tailored for specific applications.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: April 14, 2015
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Raquel Keledjian, Lawrence G. Anderson, Renhe Lin
  • CONTROLLED RELEASE AMINE-CATALYZED, MICHAEL ADDITION-CURABLE SULFUR-CONTAINING POLYMER COMPOSITIONS
    Publication number: 20150099858
    Abstract: Compositions comprising sulfur-containing polymers such as polythioethers, Michael acceptors, and controlled release amine catalysts employing Michael addition curing chemistries useful in aerospace sealant applications are disclosed. The compositions exhibit extended pot life and the rate of curing can be tailored for specific applications.
    Type: Application
    Filed: December 10, 2014
    Publication date: April 9, 2015
    Inventors: JUEXIAO CAI, LAWRENCE G. ANDERSON, RENHE LIN
  • Lightweight particles and compositions containing them
    Patent number: 8993691
    Abstract: Disclosed are particles that have an exterior surface coated with a thin polymeric coating, such as a coating that includes a sulfur-containing polymer. Also disclosed are compositions, such as fuel-resistant sealant and coating compositions, which include such particles. Aerospace vehicles having an aperture at least partially sealed with a sealant deposited from such a sealant composition are also disclosed.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: March 31, 2015
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Lawrence G. Anderson, Chester J. Szymanski
  • MULTIFUNCTIONAL SULFUR-CONTAINING POLYMERS, COMPOSITIONS THEREOF AND METHODS OF USE
    Publication number: 20150018550
    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: Application
    Filed: September 29, 2014
    Publication date: January 15, 2015
    Inventors: Steven J. Hobbs, Gregory J. McCollum, Juexiao Cai, Marfi Ito, Lawrence G. Anderson, Renhe Lin
  • MICHAEL ADDITION CURING CHEMISTRIES FOR SULFUR-CONTAINING POLYMER COMPOSITIONS EMPLOYING BIS(SULFONYL)ALKANOLS
    Publication number: 20140378649
    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. In particular, sulfur-containing polymers and sulfur containing Michael acceptor adducts having terminal 1-(ethylenesulfonyl)-n-(vinylsulfonyl)alkanol groups are disclosed.
    Type: Application
    Filed: June 21, 2013
    Publication date: December 25, 2014
    Inventors: JUEXIAO CAI, LAWRENCE G. ANDERSON, MARFI ITO, RENHE LIN
  • Rapidly Curable Electrically Conductive Clear Coatings
    Publication number: 20140370268
    Abstract: Rapidly curable electrically conductive clear coatings are applied to substrates. The electrically conductive clear coating includes to clear layer having a resinous binder with ultrafine non-stoichiometric tungsten oxide particles dispersed therein. The clear coating may be rapidly cured by subjecting the coating to infrared radiation that heats the tungsten oxide particles and surrounding resinous binder. Localized heating increases the temperature of the coating to thereby thermally cure the coating, while avoiding unwanted heating of the underlying substrate.
    Type: Application
    Filed: June 12, 2013
    Publication date: December 18, 2014
    Inventors: Mark P. Bowman, Lawrence G. Anderson, Gordon L. Post
  • MICHAEL ADDITION CURING CHEMISTRIES FOR SULFUR-CONTAINING POLYMER COMPOSITIONS
    Publication number: 20140357811
    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: August 19, 2014
    Publication date: December 4, 2014
    Inventors: Lawrence G. Anderson, Juexlao Cai, Marfi Ito, Raquel Keledjian, Renhe Lin
  • MICHAEL ADDITION CURING CHEMISTRIES FOR SULFUR-CONTAINING POLYMER COMPOSITIONS
    Publication number: 20140357812
    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: August 19, 2014
    Publication date: December 4, 2014
    Inventors: Lawrence G. Anderson, Juexiao Cai, Marfi Ito, Raquel Keledjian, Renhe Lin
  • Terminal-modified difunctional sulfur-containing polymers, compositions thereof and methods of use
    Patent number: 8889800
    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: May 22, 2014
    Date of Patent: November 18, 2014
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Steven J. Hobbs, Gregory J. McCollum, Lawrence G. Anderson, Renhe Lin
  • Multifunctional sulfur-containing polymers, compositions thereof and methods of use
    Patent number: 8877887
    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: February 11, 2014
    Date of Patent: November 4, 2014
    Assignee: PRC De Soto International, Inc.
    Inventors: Steven J. Hobbs, Gregory J. McCollum, Juexiao Cai, Marfi Ito, Lawrence G. Anderson, Renhe Lin
  • Michael addition curing chemistries for sulfur-containing polymer compositions
    Patent number: 8871896
    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: Grant
    Filed: June 21, 2012
    Date of Patent: October 28, 2014
    Assignee: 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: 20140255609
    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: May 22, 2014
    Publication date: September 11, 2014
    Inventors: Steven J. Hobbs, Gregory J. McCollum, Lawrence G. Anderson, Renhe Lin
  • Lightweight particles and compositions containing them
    Patent number: 8816023
    Abstract: Disclosed are particles that have an exterior surface coated with a thin polymeric coating, such as a coating that includes a sulfur-containing polymer. Also disclosed are compositions, such as fuel-resistant sealant and coating compositions, which include such particles. Aerospace vehicles having an aperture at least partially sealed with a sealant deposited from such a sealant composition are also disclosed.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: August 26, 2014
    Assignee: PPG Industries Ohio, Inc
    Inventors: Lawrence G. Anderson, Chester J. Szymanski
  • MULTIFUNCTIONAL SULFUR-CONTAINING POLYMERS, COMPOSITIONS THEREOF AND METHODS OF USE
    Publication number: 20140206866
    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: Application
    Filed: February 11, 2014
    Publication date: July 24, 2014
    Inventors: Steven J. Hobbs, Gregory J. McCollum, Juexiao Cai, Marfi Ito, Lawrence G. Anderson, Renhe Lin
  • Terminal-modified difunctional sulfur-containing polymers, compositions thereof and methods of use
    Patent number: 8765880
    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: December 19, 2013
    Date of Patent: July 1, 2014
    Assignee: PRC DeSoto International, Inc.
    Inventors: Stephen J. Hobbs, Gregory J. McCollum, Lawrence G. Anderson, Renhe Lin
  • 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
  • CONTROLLED-RELEASE AMINE-CATALYZED, SULFUR-CONTAINING POLYMER AND EPOXY COMPOSITIONS
    Publication number: 20140110881
    Abstract: Compositions comprising sulfur-containing polymers such as polythioethers and polysulfides, polyepoxides, and controlled-release amine catalysts useful in aerospace sealant applications are disclosed. The compositions exhibit extended pot life and the rate of curing can be tailored for specific applications.
    Type: Application
    Filed: October 24, 2012
    Publication date: April 24, 2014
    Inventors: Raquel Keledjian, Lawrence G. Anderson, Renhe Lin