Patents by Inventor Gregory C. Weed

Gregory C. Weed 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: 7234398
    Abstract: A planarizing element is described for use in a thermal imaging process. The planarizing element includes a support; a planarizing layer comprising a crosslinkable binder having a weight average molecular weight of about 20,000 to about 110,000.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: June 26, 2007
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Jonathan V. Caspar, Gerald D. Andrews, Jeffrey S. Meth, Gregory C. Weed
  • Patent number: 7153617
    Abstract: A donor element is described for use in a thermal imaging process. The donor element includes a support; a heating layer, and a colorant containing thermally imageable layer comprising a crosslinkable binder having a number average molecular weight of about 1,500 to about 70,000. A process for making a color filter using a thermal imaging process, and a liquid crystal display using this color filter are also described.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: December 26, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Jonathan V. Caspar, Gerald D. Andrews, Gregory C. Weed
  • Patent number: 6926790
    Abstract: A donor element is described for use in a thermal imaging process. The donor element includes a support: a heating layer; a colorant containing transfer layer; and an overcoat layer comprising a wax having a melting point ranging from about 30° C. to about 350° C. Typically the wax is a natural vegetable wax, a mineral wax or a synthetic wax.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: August 9, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Gregory C. Weed
  • Patent number: 6861201
    Abstract: Novel photopolymer compositions are disclosed which contain dyes that absorb strongly in the near infrared (near IR) region of the electromagnetic spectrum. These dyes are useful as photosensitizers for initiating a variety of photoimaging and photopolymerization reactions. Imaging Media are disclosed herein which are sensitive in the near infrared (near IR) region of the electromagnetic spectrum and which can initiate polymerization of ethylenically unsaturated monomer components in negative-acting photopolymer systems and/or which can initiate conversion of a leuco dye to its corresponding colored dye form. These imaging media comprise either a near IR dye photochemical sensitizer, a hexaarylbiimidazole (HABI) photoinitiator, a chain transfer agent, and a photopolymerizable material or a near IR dye photochemical sensitizer, a hexaarylbiimidazole (HABI) photoinitiator, and a leuco dye.
    Type: Grant
    Filed: April 7, 2004
    Date of Patent: March 1, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Gregory C. Weed, Dietrich M. Fabricius
  • Publication number: 20040259021
    Abstract: The present invention relates to an image transfer element for thermally induced image transfer, a laser assemblage and a process for producing a thermal image. More particularly, the present invention relates to an image transfer element comprising a colorant layer that contains a metal salt, a laser assemblage containing the image transfer element and process for producing a thermal image utilizing the image transfer element.
    Type: Application
    Filed: June 18, 2004
    Publication date: December 23, 2004
    Inventors: Easley Wallace, Gregory C. Weed
  • Patent number: 6818363
    Abstract: A thermally imageable layer comprising an aqueous dispersion containing an immiscible compound, typically a near infrared absorber, and a dispersant, typically an acrylic polymer, which layer is useful in laser induced colorant transfer processes.
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: November 16, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Graciela Beatriz Blanchet Fincher, Ronald J. Convers, Gregory C. Weed
  • Publication number: 20040191681
    Abstract: Novel photopolymer compositions are disclosed which contain dyes that absorb strongly in the near infrared (near IR) region of the electromagnetic spectrum. These dyes are useful as photosensitizers for initiating a variety of photoimaging and photopolymerization reactions. Imaging Media are disclosed herein which are sensitive in the near infrared (near IR) region of the electromagnetic spectrum and which can initiate polymerization of ethylenically unsaturated monomer components in negative-acting photopolymer systems and/or which can initiate conversion of a leuco dye to its corresponding colored dye form. These imaging media comprise either a near IR dye photochemical sensitizer, a hexaarylbiimidazole (HABI) photoinitiator, a chain transfer agent, and a photopolymerizable material or a near IR dye photochemical sensitizer, a hexaarylbiimidazole (HABI) photoinitiator, and a leuco dye.
    Type: Application
    Filed: April 7, 2004
    Publication date: September 30, 2004
    Inventors: Gregory C. Weed, Dietrich M. Fabricius
  • Publication number: 20030235768
    Abstract: A thermally imageable layer comprising an aqueous dispersion containing an immiscible compound, typically a near infrared absorber, and a dispersant, typically an acrylic polymer, which layer is useful in laser induced colorant transfer processes.
    Type: Application
    Filed: October 24, 2002
    Publication date: December 25, 2003
    Inventors: Graciela Beatriz Blanchet Fincher, Ronald J. Convers, Gregory C. Weed
  • Publication number: 20030175452
    Abstract: A donor element is described for use in a thermal imaging process. The donor element includes a support: a heating layer; a colorant containing transfer layer; and in overcoat layer comprising a wax having a melting point ranging from about 30° C. to about 350° C. Typically the wax is a natural vegetable wax, a mineral wax or a synthetic wax.
    Type: Application
    Filed: October 11, 2002
    Publication date: September 18, 2003
    Inventor: Gregory C. Weed
  • Patent number: 6569585
    Abstract: Improved processes and products for laser thermal imaging are described. These improved processes and products utlilize an image rigidification element and significantly reduce halftone dot movement, swath boundary cracking and banding.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: May 27, 2003
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Jonathan V. Caspar, Harvey Walter Taylor, Jr., Gregory C. Weed, Rolf S. Gabrielsen
  • Publication number: 20030064302
    Abstract: Improved processes and products for laser thermal imaging are described. These improved processes and products utlilize an image rigidification element and significantly reduce halftone dot movement, swath boundary cracking and banding.
    Type: Application
    Filed: July 3, 2002
    Publication date: April 3, 2003
    Inventors: Jonathan V. Caspar, Harvey Walter Taylor, Gregory C. Weed, Rolf S. Gabrielsen
  • Publication number: 20020064728
    Abstract: Novel photopolymer compositions are disclosed which contain dyes that absorb strongly in the near infrared (near IR) region of the electromagnetic spectrum. These dyes are useful as photosensitizers for initiating a variety of photoimaging and photopolymerization reactions. Imaging Media are disclosed herein which are sensitive in the near infrared (near IR) region of the electromagnetic spectrum and which can initiate polymerization of ethylenically unsaturated monomer components in negative-acting photopolymer systems and/or which can initiate conversion of a leuco dye to its corresponding colored dye form. These imaging media comprise either a near IR dye photochemical sensitizer, a hexaarylbiimidazole (HABI) photoinitiator, a chain transfer agent, and a photopolymerizable material or a near IR dye photochemical sensitizer, a hexaarylbiimidazole (HABI) photoinitiator, and a leuco dye.
    Type: Application
    Filed: February 2, 2001
    Publication date: May 30, 2002
    Inventors: Gregory C. Weed, Dietrich M. Fabricius
  • Publication number: 20020022187
    Abstract: Improved processes and products for laser thermal imaging are described. These improved processes and products utlilize an image rigidification element and significantly reduce halftone dot movement, swath boundary cracking and banding.
    Type: Application
    Filed: July 31, 2001
    Publication date: February 21, 2002
    Inventors: Jonathan V. Caspar, Harvey Walter Taylor, Gregory C. Weed, Rolf S. Gabrielsen
  • Patent number: 6294308
    Abstract: Improved processes and products for laser thermal imaging are described. These improved processes and products utilize an image rigidification element and significantly reduce halftone dot movement, swath boundary cracking and banding.
    Type: Grant
    Filed: October 15, 1999
    Date of Patent: September 25, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Jonathan V. Caspar, Harvey Walter Taylor, Jr., Gregory C. Weed, Rolf S. Gabrielsen
  • Patent number: 5576443
    Abstract: Disclosed is a novel near-infrared absorbing dye of formula: ##STR1## wherein X.sup.1, X.sup.2 independently represents --CR.sup.8 R.sup.9 --, --S--, --Se--, --NR.sup.10 --, --CH.dbd.CH-- or --O--;n is an integer of 2 or 3;R.sup.1 and R.sup.2 independently represent alkyl of 1 to 10 carbons or substituted alkyl of 1 to 10 carbons;R.sup.3 represents a ring chosen from a set consisting of aryl, substituted aryl, and a heterocyclic ring of a type present in photographic emulsions;R.sup.4, R.sup.5, R.sup.6 and R.sup.7 independently represent hydrogen, alkyl of 1-10 carbons, substituted alkyl of 1-10 carbons, R.sup.4 and R.sup.5 taken together or R.sup.6 and R.sup.7 taken together can represent atoms necessary to form a 5 or 6-membered aliphatic ring, an aromatic six-membered ring, an aromatic 10-membered ring, a substituted aromatic six-member ring or a substituted aromatic 10-member ring;R.sup.8, R.sup.
    Type: Grant
    Filed: March 30, 1995
    Date of Patent: November 19, 1996
    Assignee: Sterling Diagnostic Imaging, Inc.
    Inventors: Dietrich M. Fabricius, Gregory C. Weed
  • Patent number: 5518861
    Abstract: An element and process of use in a laser-induced ablative transfer process, said element comprising (a) a support having a first surface, said first surface having a surface roughness with an R.sub.z value of r, and bearing on the first surface (b) at least one transfer coating comprising (i) a non-sublimable imageable component (ii) a laser-radiation absorbing component, and (iii) optionally a binder, wherein the imageable component and the laser-radiation absorbing component can be the same or different; wherein the transfer coating and any additional coating on the first surface of the support have a total thickness t; and further where r.gtoreq.1.5t is described.
    Type: Grant
    Filed: April 26, 1994
    Date of Patent: May 21, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Richard A. Coveleskie, Harvey W. Taylor, Gregory C. Weed
  • Patent number: 5516622
    Abstract: An element for use in a laser induced ablative transfer process, said element comprising a support bearing on a first surface thereof at least one coating comprising (i) a non-sublimable imageable component, (ii) a laser radiation absorbing component, (iii) a particular filler having an average particle size (S), and (iv) optionally a binder, wherein the non-sublimable imageable component and the laser radiation absorbing component can be the same or different; wherein the total thickness of all coatings present on the first surface is T and further wherein S.gtoreq.2T is described.
    Type: Grant
    Filed: October 13, 1995
    Date of Patent: May 14, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Steven Savini, Reid E. Kellogg, Gregory C. Weed
  • Patent number: 5440042
    Abstract: Disclosed is a novel near-infrared absorbing dye of formula: ##STR1## wherein X.sup.1, X.sup.2 independently represents --CR.sup.8 R.sup.9 --, --S--, --Se--, --NR.sup.10 --, --CH.dbd.CH-- or --O--;n is an integer of 2 or 3;R.sup.1 and R.sup.2 independently represent alkyl of 1 to 10 carbons or substituted alkyl of 1 to 10 carbons;R.sup.3 represents a ring chosen from the set consisting of aryl, substituted aryl, and heterocyclic containing 5 or 6 carbons in the ring;R.sup.4, R.sup.5, R.sup.6 and R.sup.7 independently represent hydrogen, alkyl of 1-10 carbons, substituted alkyl of 1-10 carbons, R.sup.4 and R.sup.5 taken together or R.sup.6 and R.sup.7 taken together may represent the atoms necessary to form a 5 or 6-membered aliphatic ring, an aromatic six-membered ring, an aromatic 10-membered ring, a substituted aromatic six-member ring or a substituted aromatic 10-member ring;R.sup.8, R.sup.
    Type: Grant
    Filed: May 26, 1993
    Date of Patent: August 8, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Dietrich M. Fabricius, Gregory C. Weed
  • Patent number: 5153100
    Abstract: Photopolymerizable compositions in which the photoinitiator system contains a hexaarylbisimidazole and/or a p-dialkyaminophenyl carbonyl compound in combination with a borate anion coinitiator are disclosed.
    Type: Grant
    Filed: August 27, 1990
    Date of Patent: October 6, 1992
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Gregory C. Weed, Dietrich Fabricius
  • Patent number: 5147758
    Abstract: Photopolymerizable compositions which comprise a borate anion, a squarylium sensitizer, and, in the preferred case, a halomethyl triazine are disclosed.
    Type: Grant
    Filed: February 19, 1991
    Date of Patent: September 15, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: William K. Smothers, Gregory C. Weed, Evan D. Laganis, George Lalka