Abstract: A composition for application to a metal substrate comprises a metal cation, an azole compound and an aqueous carrier. A composition for coating a substrate comprises a carrier comprising an epoxy carrier, a urethane carrier, or a fluorinated urethane carrier, and 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, allowing the composition to dry to form a conversion coating, and applying a coating on the conversion coating.
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
Abstract: Disclosed are perfluoroethers and perfluoroether compositions useful in high temperature aerospace applications. The perfluoroethers can be adapted for use with various curing chemistries.
Abstract: Moisture-curable, urethane-containing prepolymers containing urethanes incorporated into the prepolymer backbone and compositions thereof for use in sealant applications are disclosed. The prepolymers provide cured compositions exhibiting improved tensile strength.
Abstract: Urethane-containing prepolymers formed from diisocyanates and adapted for Michael addition curing chemistries and compositions thereof for use in sealant applications are disclosed. The prepolymers provide compositions that exhibit room temperature stability and a controlled curing rate following a brief activation.
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
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
Abstract: Diethylene glycol monomethyl ether resistant coatings include a base component including a sulfur-containing, epoxy functional polyol, and an activator component including an isocyanate curing agent.
Type:
Grant
Filed:
October 7, 2010
Date of Patent:
July 14, 2015
Assignee:
PRC-DeSoto International, Inc.
Inventors:
Siamanto Abrami, Jin Song, Guangliang Tang
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:
March 7, 2014
Date of Patent:
July 7, 2015
Assignee:
PRC-DeSoto International, Inc.
Inventors:
Raquel Keledjian, Renhe Lin, Chandra Rao, Bruce Virnelson
Abstract: Sulfone-containing polythioethers, compositions containing sulfone-containing polythioethers, methods of synthesizing sulfone-containing polythioethers and the use of sulfone-containing polythioethers in aerospace sealant applications are disclosed. The sulfone-containing polythioethers have sulfone groups incorporated into the backbone of the polythioether. Cured sealant compositions comprising the sulfone-containing polythioethers exhibit enhanced thermal resistance.
Abstract: Metal ligand-containing prepolymers, compositions containing metal ligand-containing prepolymers, methods of synthesizing metal ligand-containing prepolymers and the use of metal ligand-containing prepolymers in aerospace sealant applications are disclosed. The metal ligand-containing prepolymers have metal ligands incorporated into the backbone of the prepolymer. Cured sealant compositions comprising the metal ligand-containing prepolymers exhibit enhanced properties suitable for aerospace sealant applications.
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
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
Abstract: A composite photonic crystal comprising an inverse opal structure defining an ordered array of voids with a filler composition received within the voids. A property of the filler composition changes in response to a stimulus, such as a temperature change, thereby changing the band gap of radiation that is reflected by the composite photonic crystal.
Type:
Grant
Filed:
November 11, 2010
Date of Patent:
May 5, 2015
Assignee:
PRC-DeSoto International, Inc.
Inventors:
Noel R. Vanier, Eldon L. Decker, Stuart D. Hellring, Xiangling Xu, Sean Purdy, Gregory J. McCollum
Abstract: Sulfur-containing polymer adducts such as polythioethers, polysulfides, and sulfur-containing polyformals having terminal maleimide groups, and in particular, sulfur-containing polymers and sulfur containing adducts having terminal 1,1?-(methylenedi-4,1-phenylene)bismaleimide groups are disclosed. The adducts provide cured sealants having improved tensile strength and elongation and are useful as aerospace sealants.
Abstract: Disclosed are perfluoroethers and perfluoroether compositions useful in high temperature aerospace applications. The perfluoroethers can be adapted for use with various curing chemistries.
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
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
Abstract: A coating comprising MgO, amino acid and a film-forming resin are disclosed as are methods of curing such a coating to coat at least a portion of a substrate and a substrate coated thereby.
Type:
Application
Filed:
September 11, 2013
Publication date:
March 12, 2015
Applicant:
PRC-DeSoto International, Inc.
Inventors:
Michael A. Mayo, Elizabeth A. Furar, Paul Rushman, Jonathan P. Breon
Abstract: A cap (10) for sealing a mechanical fastener (200), method for making the cap, and driver and method for applying the cap is disclosed. The cap includes a shell having an exterior surface (14) and an interior surface (16) defining a cavity (18), an opening (19) extending through the shell between the interior and exterior surfaces, and a sealant (13) at least partially filling the cavity. A package and a holder for holding a plurality of cap assemblies are also disclosed.
Type:
Application
Filed:
March 15, 2013
Publication date:
March 5, 2015
Applicant:
PRC-DeSoto International, Inc.
Inventors:
George C. Obuhowich, Soccorso Rizzello, Russell Shellenberger