Patents by Inventor Brian E. Woodworth

Brian E. Woodworth 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).

  • Patent number: 8399604
    Abstract: Conducting polymer systems for hole injection or transport layer applications including a composition comprising: a water soluble or water dispersible regioregular polythiophene comprising (i) at least one organic substituent, and (ii) at least one sulfonate substituent comprising sulfonate sulfur bonding directly to the polythiophene backbone. The polythiophene can be water soluble, water dispersible, or water swellable. They can be self-doped. The organic substituent can be an alkoxy substituent, or an alkyl substituent. OLED, PLED, SMOLED, PV, and ESD applications can be used.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: March 19, 2013
    Assignee: Plextronics, Inc.
    Inventors: Venkataramanan Seshadri, Brian E. Woodworth, Christopher Greco, Darin Laird, Mathew K. Mathai
  • Patent number: 8129466
    Abstract: A pigment dispersant is disclosed comprising a tri-block copolymer having a first block comprising a glycidyl(meth)acrylate reacted with a napthoic acid, a second block comprising (meth)acrylic acid alkyl esters, and a third block comprising (meth)acrylic acid alkyl esters, wherein said third block is different from said second block. The dispersant is suited for use in a nanoparticulate dispersion comprising pigment particles having an average primary particle size of less than 100 nm.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: March 6, 2012
    Assignee: PPG Industries Ohio, Inc
    Inventors: W. David Polk, Eldon L. Decker, Noel R. Vanier, Brian E. Woodworth
  • Publication number: 20120037852
    Abstract: Conducting polymer systems for hole injection or transport layer applications including a composition comprising: a water soluble or water dispersible regioregular polythiophene comprising (i) at least one organic substituent, and (ii) at least one sulfonate substituent comprising sulfonate sulfur bonding directly to the polythiophene backbone. The polythiophene can be water soluble, water dispersible, or water swellable. They can be self-doped. The organic substituent can be an alkoxy substituent, or an alkyl substituent. OLED, PLED, SMOLED, PV, and ESD applications can be used.
    Type: Application
    Filed: August 12, 2011
    Publication date: February 16, 2012
    Inventors: Venkataramanan SESHADRI, Brian E. Woodworth, Christopher Greco, Darin Laird, Mathew K. Mathai
  • Patent number: 8017241
    Abstract: Conducting polymer systems for hole injection or transport layer applications including a composition comprising: a water soluble or water dispersible regioregular polythiophene comprising (i) at least one organic substituent, and (ii) at least one sulfonate substituent comprising sulfonate sulfur bonding directly to the polythiophene backbone. The polythiophene can be water soluble, water dispersible, or water swellable. They can be self-doped. The organic substituent can be an alkoxy substituent, or an alkyl substituent. OLED, PLED, SMOLED, PV, and ESD applications can be used.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: September 13, 2011
    Assignee: Plextronics, Inc.
    Inventors: Venkataramanan Seshadri, Brian E. Woodworth, Christopher Greco, Darin Laird, Mathew K. Mathai
  • Publication number: 20110095275
    Abstract: Organic electronic devices, compositions, and methods are disclosed that employ electrically conductive nanowires and conducting materials such as conjugated polymers such as sulfonated regioregular polythiophenes which provide high device performance such as good solar cell efficiency. Devices requiring transparent conductors that are resilient to physical stresses can be fabricated, with reduced corrosion problems.
    Type: Application
    Filed: September 24, 2010
    Publication date: April 28, 2011
    Inventors: Sergey B. Li, Shawn P. Williams, Brian E. Woodworth, Pierre-Marc Allemand, Rimple Bhatia, Hash Pakbaz
  • Publication number: 20100174032
    Abstract: A barrier coating comprising a polyurethane dispersion and an elastomeric material is disclosed. The polyurethane comprises at least 30 weight percent of meta-substituted aromatic material. Methods for improving barrier using the coatings are also disclosed.
    Type: Application
    Filed: March 22, 2010
    Publication date: July 8, 2010
    Applicant: PPG INDUSTRIES OHIO, INC.
    Inventors: Rodger G. Temple, Dennis L. Faler, Diep Nguyen, Brian E. Woodworth, Walter F. Kasper, Michelle S. Miles
  • Publication number: 20100043876
    Abstract: Improved organic photovoltaic cells including a composition useful for forming an active layer which comprises (a) at least one p-type material, (b) at least one n-type material, (c) at least one first solvent and (d) at least one second solvent, wherein the first solvent is different from the second solvent, and the first solvent comprises at least one alkylbenzene or benzocyclohexane, and the second solvent comprises at least one carbocyclic compound. The second solvent can be used in lesser amounts but can improve efficiency in cells.
    Type: Application
    Filed: August 14, 2009
    Publication date: February 25, 2010
    Inventors: Richard Tuttle, Matthew Ladd Reitz, Brian E. Woodworth
  • Publication number: 20090230361
    Abstract: A composition comprising: at least one conjugated polymer, at least one second polymer comprising repeat units represented by: (I) optionally, —[CH2—CH(Ph-OH)]— and (II) —[CH2—CH(Ph-OR)]- wherein Ph is a phenyl ring and R comprises a fluorinated group, an alkyl group, an alkylsulfonic acid group, an alkylene oxide group, or a combination thereof. Other polymers can be used as second polymer including polymers comprising modified naphthol side groups. Used in hole injection and hole transport layers for organic electronic devices. Increased lifetime and better processability can be achieved. Versatility with useful OLED emitters can be achieved. Ink formulations can be adapted for ink jet printing. The conjugated polymer can be a polythiophene. Applications include OLEDs and OPVs.
    Type: Application
    Filed: March 5, 2009
    Publication date: September 17, 2009
    Inventors: Venkataramanan Seshadri, Christopher T. Brown, Brian E. Woodworth, Edward S. Yang
  • Publication number: 20080248313
    Abstract: Conducting polymer systems for hole injection or transport layer applications including a composition comprising: a water soluble or water dispersible regioregular polythiophene comprising (i) at least one organic substituent, and (ii) at least one sulfonate substituent comprising sulfonate sulfur bonding directly to the polythiophene backbone. The polythiophene can be water soluble, water dispersible, or water swellable. They can be self-doped. The organic substituent can be an alkoxy substituent, or an alkyl substituent. OLED, PLED, SMOLED, PV, and ESD applications can be used.
    Type: Application
    Filed: July 13, 2007
    Publication date: October 9, 2008
    Inventors: Venkataramanan Seshadri, Brian E. Woodworth, Christopher Greco, Darin Laird, Mathew K. Mathai
  • Publication number: 20080188610
    Abstract: A pigment dispersant is disclosed comprising a tri-block copolymer having a first block comprising a glycidyl (meth)acrylate reacted with a napthoic acid, a second block comprising (meth)acrylic acid alkyl esters, and a third block comprising (meth)acrylic acid alkyl esters, wherein said third block is different from said second block. The dispersant is suited for use in a nanoparticulate dispersion comprising pigment particles having an average primary particle size of less than 100 nm.
    Type: Application
    Filed: March 25, 2008
    Publication date: August 7, 2008
    Applicant: PPG INDUSTRIES OHIO, INC.
    Inventors: W. David Polk, Eldon L. Decker, Noel R. Vanier, Brian E. Woodworth
  • Patent number: 7335705
    Abstract: Fluoropolymers are disclosed. The fluoropolymers include (i) units derived from a fluoromonomer composition comprising chlorotrifluoroethylene, and (ii) units derived from at least one donor monomer composition. In the disclosed fluoropolymers, units (i) and (ii) are distributed along the fluoropolymer chain in a substantially alternating fashion. Also disclosed are thermosetting compositions containing such fluoropolymers, substrates coated with such compositions, methods for making such compositions, and methods for coating substrates with such compositions.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: February 26, 2008
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Simion Coca, Edward R. Coleridge, James B. O'Dwyer, Brian E. Woodworth
  • Patent number: 7332545
    Abstract: Fluoropolymers are disclosed. The fluoropolymers include (i) units derived from a fluoromonomer having the formula F2C?CXY, where X is CF3 and Y is either F or CF3, and (ii) units derived from at least one donor monomer. In the disclosed fluoropolymers, units (i) and (ii) are distributed along the fluoropolymer chain in a substantially alternating fashion. Also disclosed are thermosetting compositions containing such fluoropolymers, substrates coated with such compositions, methods for making such compositions, and methods for coating substrates with such compositions.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: February 19, 2008
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Simion Coca, Edward R. Coleridge, James B. O'Dwyer, Brian E. Woodworth, Richard J. Winters
  • Patent number: 6590049
    Abstract: The present invention is directed to novel compounds that can serve as highly efficient initiators for controlled radical (co)polymerization processes including atom transfer radical (co)polymerization processes. These compounds include di-(trimethylolpropane)-tetra-(2-haloisobutyrate) compounds. The present invention also is directed to controlled radical (co)polymerization processes in which novel (co)polymers are prepared using the novel compounds, as well as to the novel (co)polymer products of the process.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: July 8, 2003
    Assignee: PPG Industries Ohio, Inc.
    Inventors: James B. O'Dwyer, Kevin C. Olson, Simion Coca, Brian E. Woodworth
  • Patent number: 6441066
    Abstract: A pigment dispersion comprising pigment, an aqueous carrier selected from water and a mixture of water and at least one organic solvent, and a pigment dispersant is described. The pigment dispersant is prepared by controlled radical polymerization, e.g., atom transfer radical polymerization, of a radically polymerizable monomer in the presence of a polymeric initiator having at least one radically transferable group. The polymeric initiator forms the polymeric backbone segment of the pigment dispersant, and the monomer forms polymeric segments that are pendent to the polymeric backbone segment. The pigment dispersant has comb-like architecture in which the polymeric backbone segment is hydrophilic, and at least a portion of each pendent polymeric segment is hydrophobic.
    Type: Grant
    Filed: December 16, 1999
    Date of Patent: August 27, 2002
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Brian E. Woodworth, Simion Coca, James B. O'Dwyer
  • Patent number: 6376597
    Abstract: A pigment dispersion comprising pigment, an aqueous carrier selected from water and a mixture of water and at least one organic solvent, and a pigment dispersant is described. The pigment dispersant is prepared by polymerizing (i) at least one prepolymer having a radically polymerizable group, and (ii) at least one second monomer. The prepolymer is prepared by controlled radical polymerization, e.g., atom transfer radical polymerization, of at least one radically polymerizable first monomer. The second monomer forms a polymeric backbone segment of the pigment dispersant, and the prepolymer forms polymeric segments that are pendent to the backbone. The backbone segment of the pigment dispersant in hydrophobic, while at least a portion of each pendent polymeric segment is hydrophilic.
    Type: Grant
    Filed: December 16, 1999
    Date of Patent: April 23, 2002
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Simion Coca, Gregory J. McCollum, James B. O'Dwyer, Brian E. Woodworth
  • Patent number: 6306209
    Abstract: A pigment dispersion comprising pigment, an aqueous carrier selected from water and a mixture of water and at least one organic solvent, and a pigment dispersant is described. The pigment dispersant is prepared by polymerizing (i) at least one prepolymer having a radically polymerizable group, and (ii) at least one second monomer. The prepolymer is prepared by controlled radical polymerization, e.g., atom transfer radical polymerization, of at least one radically polymerizable first monomer. The second monomer forms a polymeric backbone segment of the pigment dispersant, and the prepolymer forms polymeric segments that are pendent to the backbone. The backbone segment of the pigment dispersant is hydrophilic, while at least a portion of each pendent polymeric segment is hydrophobic.
    Type: Grant
    Filed: December 16, 1999
    Date of Patent: October 23, 2001
    Assignee: PPG Industries Ohio, inc.
    Inventors: Brian E. Woodworth, Gregory J. McCollum, James B. O'Dwyer, Simion Coca
  • Patent number: 6294014
    Abstract: A pigment dispersion comprising pigment, an aqueous carrier selected from water and a mixture of water and at least one organic solvent, and a pigment dispersant is described. The pigment dispersant is prepared by controlled radical polymerization, e.g., atom transfer radical polymerization, of a radically polymerizable monomer in the presence of a polymeric initiator having at least one radically transferable group. The polymeric initiator forms the polymeric backbone segment of the pigment dispersant, and the monomer forms polymeric segments that are pendent to the polymeric backbone segment. The pigment dispersant has comb-like architecture in which the polymeric backbone segment is hydrophobic, and at least a portion of each pendent polymeric segment is hydrophilic.
    Type: Grant
    Filed: December 16, 1999
    Date of Patent: September 25, 2001
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Brian E. Woodworth, Simion Coca, James B. O'Dwyer
  • Patent number: 6190524
    Abstract: A composition is provided comprising a reaction product of (1) a bismuth compound; and (2) an heterocyclic compound having mercapto functionality. Such compositions are useful in electrodepositable compositions further comprising an active hydrogen-containing, cationic salt group-containing resin and a capped polyisocyanate curing agent. These electrodepositable compositions may be prepared without the use of conventional lead or tin catalysts and exhibit excellent properties as cured coatings.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: February 20, 2001
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Raphael O. Kollah, Brian E. Woodworth, Lawrence G. Anderson, Matthew S. Scott