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).

  • Rapidly curable electrically conductive clear coatings
    Patent number: 9870842
    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: Grant
    Filed: June 12, 2013
    Date of Patent: January 16, 2018
    Assignee: PPG industries Ohio, Inc.
    Inventors: Mark P. Bowman, Lawrence G. Anderson, Gordon L. Post
  • IONIC LIQUID CATALYSTS IN SULFUR-CONTAINING POLYMER COMPOSITIONS
    Publication number: 20170306181
    Abstract: Compositions comprising thiol-terminated sulfur-containing prepolymers, curing agents reactive with the thiol-terminated sulfur-containing prepolymers, and ionic liquid catalysts, useful in aerospace sealant applications are disclosed. The use of ionic liquid catalysts provides curable sealant compositions having an extended working time and a rapid cure rate.
    Type: Application
    Filed: April 22, 2016
    Publication date: October 26, 2017
    Inventors: AMY LIANE TOOLIS, LAWRENCE G. ANDERSON, BRIANNE N. SAWDERS-GEORGIC
  • Controlled release amine-catalyzed, Michael addition-curable sulfur-containing polymer compositions
    Patent number: 9499668
    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: December 10, 2014
    Date of Patent: November 22, 2016
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Juexiao Cai, Lawrence G. Anderson, Renhe Lin
  • Michael addition curing chemistries for sulfur-containing polymer compositions employing bis(sulfonyl)alkanols
    Patent number: 9394405
    Abstract: Compositions useful in aerospace sealant applications comprise sulfur-containing polymers such as polythioethers and polysulfides and are cured using Michael addition reactions. Compositions employing Michael addition curing chemistries include sulfur-containing adducts comprising terminal Michael acceptor groups. In particular, the sulfur-containing adducts include terminal 1-(ethylenesulfonyl)-n-(vinylsulfonyl)alkanol groups.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: July 19, 2016
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Juexiao Cai, Lawrence G. Anderson, Marfi Ito, Renhe Lin
  • Michael addition curing chemistries for sulfur-containing polymer compositions
    Patent number: 9388280
    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: August 19, 2014
    Date of Patent: July 12, 2016
    Assignee: PRC-Desoto International, Inc.
    Inventors: Lawrence G. Anderson, Juexiao Cai, Marfi Ito, Raquel Keledjian, Renhe Lin
  • Multifunctional sulfur-containing polymers, compositions thereof and methods of use
    Patent number: 9382447
    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: January 5, 2016
    Date of Patent: July 5, 2016
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Steven J. Hobbs, Gregory J. McCollum, Juexiao Cai, Marfi Ito, Lawrence G. Anderson, Renhe Lin
  • PHOSPHINE-CATALYZED, MICHAEL ADDITION-CURABLE SULFUR-CONTAINING POLYMER COMPOSITIONS
    Publication number: 20160186025
    Abstract: Compositions comprising Michael acceptor-terminated sulfur-containing prepolymers, thiol-terminated sulfur-containing prepolymers, and e phosphine catalysts useful in aerospace sealant applications are disclosed. The compositions exhibit extended pot life, cure rapidly following activation, and provide cured sealants having improved properties useful in aerospace sealant applications.
    Type: Application
    Filed: March 4, 2016
    Publication date: June 30, 2016
    Inventors: LAWRENCE G. ANDERSON, JUEXIAO CAI, MARK P. BOWMAN, RENHE LIN
  • Michael addition curing chemistries for sulfur-containing polymer compositions
    Patent number: 9365678
    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: August 19, 2014
    Date of Patent: June 14, 2016
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Lawrence G. Anderson, Juexiao Cai, Marfi Ito, Raquel Keledjian, Renhe Lin
  • Phosphine-catalyzed, michael addition-curable sulfur-containing polymer compositions
    Patent number: 9328275
    Abstract: Compositions comprising Michael acceptor-terminated sulfur-containing prepolymers, thiol-terminated sulfur-containing prepolymers, and e phosphine catalysts useful in aerospace sealant applications are disclosed. The compositions exhibit extended pot life, cure rapidly following activation, and provide cured sealants having improved properties useful in aerospace sealant applications.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: May 3, 2016
    Assignee: PRC DeSoto International, Inc.
    Inventors: Lawrence G. Anderson, Juexiao Cai, Mark P. Bowman, Renhe Lin
  • MULTIFUNCTIONAL SULFUR-CONTAINING POLYMERS, COMPOSITIONS THEREOF AND METHODS OF USE
    Publication number: 20160115350
    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: January 5, 2016
    Publication date: April 28, 2016
    Inventors: STEVEN J. HOBBS, GREGORY J. MCCOLLUM, JUEXIAO CAI, MARFI ITO, LAWRENCE G. ANDERSON, RENHE LIN
  • LIGHTWEIGHT PARTICLES AND COMPOSITIONS CONTAINING THEM
    Publication number: 20160083619
    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: Application
    Filed: December 9, 2015
    Publication date: March 24, 2016
    Inventors: Lawrence G. Anderson, Chester J. Szymanski
  • Multifunctional sulfur-containing polymers, compositions thereof and methods of use
    Patent number: 9260567
    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: July 9, 2015
    Date of Patent: February 16, 2016
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Steven J. Hobbs, Gregory J. McCollum, Juexiao Cai, Marfi Ito, Lawrence G. Anderson, Renhe Lin
  • MULTIFUNCTIONAL SULFUR-CONTAINING POLYMERS, COMPOSITIONS THEREOF AND METHODS OF USE
    Publication number: 20150344631
    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: July 9, 2015
    Publication date: December 3, 2015
    Inventors: STEVEN J. HOBBS, GREGORY J. MCCOLLUM, JUEXIAO CAI, MARFI ITO, LAWRENCE G. ANDERSON, RENHE LIN
  • Coating/sealant systems, aqueous resinous dispersions, and methods of electrocoating
    Patent number: 9181628
    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: September 14, 2011
    Date of Patent: November 10, 2015
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Joseph Theodore Valko, Robin M. Peffer, Michael A. Mayo, Lawrence G. Anderson, Thor G. Lingenfelter, Beth Furar
  • PHOSPHINE-CATALYZED. MICHAEL ADDITION-CURABLE SULFUR-CONTAINING POLYMER COMPOSITIONS
    Publication number: 20150252233
    Abstract: Compositions comprising Michael acceptor-terminated sulfur-containing prepolymers, thiol-terminated sulfur-containing prepolymers, and e phosphine catalysts useful in aerospace sealant applications are disclosed. The compositions exhibit extended pot life, cure rapidly following activation, and provide cured sealants having improved properties useful in aerospace sealant applications.
    Type: Application
    Filed: March 7, 2014
    Publication date: September 10, 2015
    Applicant: PRC-DeSoto International, Inc.
    Inventors: LAWRENCE G. ANDERSON, JUEXIAO CAl, MARK P. BOWMAN, RENHE LIN
  • MICHAEL ADDITION CURING CHEMISTRIES FOR SULFUR-CONTAINING POLYMER COMPOSITIONS EMPLOYING BIS(SULFONYL)ALKANOLS
    Publication number: 20150240033
    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: May 11, 2015
    Publication date: August 27, 2015
    Inventors: Juexiao Cai, Lawrence G. Anderson, Marfi Ito, Renhe Lin
  • Multifunctional sulfur-containing polymers, compositions thereof and methods of use
    Patent number: 9109089
    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 13, 2015
    Date of Patent: August 18, 2015
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Steven J. Hobbs, Gregory J. McCollum, Juexiao Cai, Marfi Ito, Lawrence G. Anderson, Renhe Lin
  • MULTIFUNCTIONAL SULFUR-CONTAINING POLYMERS, COMPOSITIONS THEREOF AND METHODS OF USE
    Publication number: 20150183806
    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: March 13, 2015
    Publication date: July 2, 2015
    Inventors: Steven J. Hobbs, Gregory J. MCCOLLUM, JUEXIAO CAI, MARFI ITO, LAWRENCE G. ANDERSON, RENHE LIN
  • LIGHTWEIGHT PARTICLES AND COMPOSITIONS CONTAINING THEM
    Publication number: 20150175766
    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 scaled with a sealant deposited from such a sealant composition are also disclosed.
    Type: Application
    Filed: March 5, 2015
    Publication date: June 25, 2015
    Inventors: Lawrence G. Anderson, Chester J. Szymanski
  • Michael addition curing chemistries for sulfur-containing polymer compositions employing bis(sulfonyl)alkanols
    Patent number: 9056949
    Abstract: Michael addition curing chemistries in compositions comprising sulfur-containing polymers such as polythioethers and polysulfides are useful in aerospace sealant applications. Compositions employing Michael addition curing chemistries include sulfur-containing adducts comprising terminal Michael acceptor groups. In particular, the sulfur-containing adducts include terminal 1-(ethylenesulfonyl)-n-(vinylsulfonyl)alkanol groups.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: June 16, 2015
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Juexiao Cai, Lawrence G. Anderson, Marfi Ito, Renhe Lin