Patents by Inventor Dean C. Webster

Dean C. Webster 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).

  • Publication number: 20090184417
    Abstract: Disclosed are photosensitizers that include a polyol moiety covalently bonded to a fused aromatic moiety. Also disclosed is a method for improving UV laser ablation performance of a coating, such as a cationic UV curable coating, by incorporating an oxalyl-containing additive into the cationic UV curable or other coating. Oxalyl-containing sensitizers having the formula Q-O—C(O)—C(O)—O—R1, wherein Q represents a fused aromatic moiety and R1 is an alkyl or aryl group, are also disclosed, as are oxalyl-containing oxetane resins, oxalyl-containing polyester polyols, and cationic UV curable coating formulations that include oxalyl-containing additives.
    Type: Application
    Filed: April 21, 2007
    Publication date: July 23, 2009
    Inventors: Dean C. Webster, Zhigang Chen
  • Publication number: 20090173919
    Abstract: Disclosed are conductive ink compositions that include at least one monomer containing exactly one ethylenically unsaturated group, one or more thermoplastic polymers, one or more free radical initiators, and conductive particles. Also disclosed are conductive thermoplastic materials which include at least one thermoplastic polymer produced by polymerization of one or more monomers containing exactly one ethylenically unsaturated group; and conductive particles dispersed in said thermoplastic polymer. The conductive ink compositions and thermoplastic materials can be used in the manufacture of electronic devices, such as radiofrequency identification (“RFID”) devices.
    Type: Application
    Filed: November 22, 2006
    Publication date: July 9, 2009
    Applicant: NDSU RESEARCVH FOUNDATION
    Inventors: Dean C. Webster, Samali Datta, Douglas L. Schulz
  • Publication number: 20090111937
    Abstract: Polysiloxanes terminated with one or more hydroxy functional carbamate groups are provided. The polymers may have the formula (I) wherein R1, R2, R3, and R4 are independently hydrogen, C1-C10 alkyl, C1-C10 fluoro-substituted alkyl; cyclopentyl, cyclohexyl, benzyl, toluoyl, xylyl and/or phenyl; R5 and R6 are linking groups; R15 and R16 are independently hydrogen, C1-C10 alkyl, cyclopentyl, cyclohexyl, benzyl, toluoyl, xylyl or phenyl; and L1 and L2 are linking groups. Typically, x is such that the polymer has a molecular weight of about 1,000 to 100,000. Other polymeric materials produced by reacting with an isocyanate functional compound or a lactone and coating compositions containing such polymeric materials are also provided.
    Type: Application
    Filed: July 26, 2006
    Publication date: April 30, 2009
    Inventors: Dean C. Webster, Abdullah Ekin
  • Publication number: 20090017288
    Abstract: A polymeric material may be prepared by reacting a composition that includes polyol, polyisocyanate, and polyorganosiloxane having functional groups capable of reacting with the polyisocyanate, wherein the polymeric material has a surface which includes raised microdomains.
    Type: Application
    Filed: July 11, 2007
    Publication date: January 15, 2009
    Inventors: Dean C. Webster, Partha S. Majumdar
  • Publication number: 20080213599
    Abstract: A polymeric material may be prepared by reacting a mixture comprising an amino functional polyorganosiloxane, polyisocyanate, and polyol. The polyol may comprise a hydroxy-functional poly(meth)acrylate. The polymeric material may be used as a coating for a substrate and may inhibit fouling on a surface exposed to aquatic conditions.
    Type: Application
    Filed: June 6, 2007
    Publication date: September 4, 2008
    Inventors: Dean C. Webster, Robert J. Pieper, Adbullah Ekin
  • Publication number: 20080171212
    Abstract: A protective coating including a crosslinked polyester that is removable with a basic composition, as well as coated articles, methods of preparing a protective coating, and methods of using a protective coating.
    Type: Application
    Filed: June 9, 2005
    Publication date: July 17, 2008
    Applicant: NORTH DAKOTA STATE UNIVERSITY
    Inventors: Tara J. Shedlosky, Gordon P Bierwagen, Dean C. Webster, Andrew M. Huovinen
  • Patent number: 6465679
    Abstract: This invention involves a carbamate functional polymer or oligomer made by reacting a cyclic carbonate with ammonia or a primary amine, then reacting the resulting hydroxycarbamate with a polyfunctional material containing groups reactive with hydroxyl groups to form a polyfunctional carbamate. The polymer formed is mixed with an aminoplast, coated on a substrate and cured to form a crosslinked coating.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: October 15, 2002
    Assignee: Eastman Chemical Company
    Inventors: Dean C. Webster, Allen L. Crain
  • Publication number: 20020040110
    Abstract: This invention involves a carbamate functional polymer or oligomer made by reacting a cyclic carbonate with ammonia or a primary amine, then reacting the resulting hydroxycarbamate with a polyfucnctional material containing groups reactive with hydroxyl groups to form a polyfunctional carbamate. The polymer formed is mixed with an aminoplast, coated on a substrate and cured to form a crosslinked coating.
    Type: Application
    Filed: December 22, 2000
    Publication date: April 4, 2002
    Inventors: Dean C. Webster, Allen L. Crain
  • Publication number: 20020006514
    Abstract: This invention involves a composition composed of a homopolymer of vinyl ethylene carbonate or a copolymer of vinyl ethylene carbonate, which is further reacted with ammonia, a primary alkyl amine, or an amino alcohol. The resulting compound, which is a polymer containing both carbamate and hydroxyl groups is then mixed with an aminoplast, coated on a substrate and cured to form a crosslinked coating. In addition, the polymer containing both hydroxyl and carbamate functional groups can be further reacted with either an anhydride or a monofunctional isocyanate, resulting in a copolymer containing only carbamate functional groups. This copolymer is mixed with an aminoplast, coated on a substrate and cured to form a crosslinked coating.
    Type: Application
    Filed: December 22, 2000
    Publication date: January 17, 2002
    Inventors: Dean C. Webster, Allen L. Crain
  • Patent number: 5567527
    Abstract: Provided are curable copolymers having 1,3-dioxolan-2-one-4-yl groups incorporated therein. The copolymers are useful as binders in coating compositions and can be cured with primary amine cross-linking compounds to form a continuous polyurethane coating.
    Type: Grant
    Filed: February 21, 1995
    Date of Patent: October 22, 1996
    Assignee: Eastman Chemical Company
    Inventors: Dean C. Webster, Chih-Herng J. Su, deceased, Charles H. Foster