Patents by Inventor Bruce M. Monroe

Bruce M. Monroe 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).

  • Process of forming a colored image utilizing aqueous-processable imaging element tonable at room temperature before and after exposure to actinic radiation
    Patent number: 5534380
    Abstract: A tonable, aqueous-processable, photosensitive element and process for forming a colored image from said element is described. The element comprises a support and a tonable, aqueous-processable photosensitive layer, said photosensitive layer consisting essentially of (a) an aqueous-processable, photoinsolubilizable photosensitive composition comprising a photosensitive material, and (b) a water-soluble plasticizer, wherein said photosensitive material is present in sufficient amount to insolubilize said photosensitive layer on exposure to actinic radiation, said photosensitive composition is present in sufficient amount to form a layer when said photosensitive layer is coated, and said plasticizer is present in sufficient amount to make said photosensitive layer.
    Type: Grant
    Filed: November 28, 1994
    Date of Patent: July 9, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Gregory A. Bodager, Bruce M. Monroe
  • Aqueous-processable imaging element tonable at room temperature before and after exposure to actinic radiation
    Patent number: 5401603
    Abstract: A tonable, aqueous-processable, photosensitive element and process for forming a colored image from said element is described. The element comprises a support and a tonable, aqueous-processable photosensitive layer, said photosensitive layer consisting essentially of (a) an aqueous-processable, photoinsolubilizable photosensitive composition comprising a photosensitive material, and (b) a water-soluble plasticizer, wherein said photosensitive material is present in sufficient amount to insolubilize said photosensitive layer on exposure to actinic radiation, said photosensitive composition is present in sufficient amount to form a layer when said photosensitive layer is coated, and said plasticizer is present in sufficient amount to make said photosensitive layer.
    Type: Grant
    Filed: February 15, 1994
    Date of Patent: March 28, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Gregory A. Bodager, Bruce M. Monroe
  • Photopolymerizable compositions in elements for hologram imaging
    Patent number: 5260149
    Abstract: Solid photopolymerizable compositions and photosensitive elements are provided that are useful in preparing optical elements, and especially holograms. The composition contains a polymeric binder, a liquid ethylenically unsaturated monomer, and a photoinitiator system. Typical compositions have a refractive index modulation of at least 0.005 when measured per the specified test.
    Type: Grant
    Filed: October 16, 1991
    Date of Patent: November 9, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Bruce M. Monroe, William K. Smothers
  • Borate coinitiators for photopolymerizable compositions
    Patent number: 5143818
    Abstract: This invention relates to initiator systems for photopolymerizable compositions. More particularly, this invention pertains to photopolymerizable compositions in which the initiator system comprises an anionic dye in combination with a borate anion coinitiator.
    Type: Grant
    Filed: February 1, 1991
    Date of Patent: September 1, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Gregory C. Weed, Bruce M. Monroe
  • Photopolymerizable compositions and elements for refractive index imaging
    Patent number: 5098803
    Abstract: Solid photopolymerizable compositions and photosensitive elements are provided that are useful in preparing optical elements, and especially holograms. The compositions contains a polymeric binder, a liquid ethylenically unsaturated monomer, and a photoinitiator system. Typical compositions have a refractive index modulation of at least 0.005 when measured per the specified test.
    Type: Grant
    Filed: February 14, 1990
    Date of Patent: March 24, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Bruce M. Monroe, William K. Smothers
  • Process of forming hologram and polymeric holographic recording medium with sensitizer
    Patent number: 5096790
    Abstract: A new class of sensitizers for photopolymerizable compositions is disclosed derived from cyclic ketones and tricyclic aminoaldehydes. A preferred compound is cyclopentanone, 2.
    Type: Grant
    Filed: July 16, 1990
    Date of Patent: March 17, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Bruce M. Monroe
  • Holographic photopolymer compositions and elements containing a ring-opening monomer
    Patent number: 4996120
    Abstract: Presence of a ring opening monomer polymerizable by free radical sigma-bond cleavage in a photopolymerizable composition improves volume reflection holograms prepared from the composition.
    Type: Grant
    Filed: May 16, 1990
    Date of Patent: February 26, 1991
    Assignee: E. I. DuPont de Nemours and Company
    Inventors: Willaim K. Smothers, Bruce M. Monroe, Dominic M. Chan
  • Photopolymerization sensitizers active at longer wavelengths
    Patent number: 4987230
    Abstract: A new class of sensitizers for photopolymerizable compositions is disclosed derived from cyclic ketones and tricyclic aminoaldehydes.
    Type: Grant
    Filed: December 8, 1989
    Date of Patent: January 22, 1991
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Bruce M. Monroe
  • Holographic photopolymer compositions and elements for refractive index imaging
    Patent number: 4963471
    Abstract: Holographic photopolymer compositions having fluorinated binders are provided that produce excellent reflection holograms when holographically imaged.
    Type: Grant
    Filed: July 14, 1989
    Date of Patent: October 16, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Torence J. Trout, Dominic M. Chan, Bruce M. Monroe
  • Holographic photopolymer compositions and elements containing a ring-opening monomer
    Patent number: 4959284
    Abstract: Presence of a ring opening monomer in a photopolymerizable composition improves reflection holograms prepared from the composition.
    Type: Grant
    Filed: December 29, 1988
    Date of Patent: September 25, 1990
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: William K. Smothers, Bruce M. Monroe, Dominic M. T. Chan
  • Photopolymerizable compositions and elements for refractive index imaging
    Patent number: 4942112
    Abstract: Solid photopolymerizable compositions and photosensitive elements are provided that are useful in preparing optical elements, and especially holograms. The composition contains a polymeric binder, a liquid ethylenically unsaturated monomer, and a photoinitiator system. Typical compositions have a refractive index modulation of at least 0.005 when measured per the specified test.
    Type: Grant
    Filed: January 15, 1988
    Date of Patent: July 17, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Bruce M. Monroe, William K. Smothers
  • Polymeric sensitizers for photopolymer composition
    Patent number: 4565769
    Abstract: Photopolymerizable composition consisting essentially of (A) at least one ethylenically unsaturated monomeric compound, (B) at least one 2,4,5-triarylimidazolyl dimer, (C) sensitizing amount of at least one polymeric sensitizer, weight average molecular weight 10,000 to 300,000, which is the reaction product of (1) a reactive photosensitizer and (2) a reactive polymer as defined herein, and (D) optionally an organic polymeric binder. The compositions are useful in photoresists, chemical milling, toning films and printing plates.
    Type: Grant
    Filed: November 21, 1984
    Date of Patent: January 21, 1986
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Thomas E. Dueber, Bruce M. Monroe