Patents by Inventor Marie C. Bunce

Marie C. Bunce 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).

  • Solid particle dispersions and their use in the preparation of laser thermal media
    Patent number: 6762006
    Abstract: A donor element for use in laser thermal imaging has a layer which comprises an infrared-absorbing material, an image dye and a polymer matrix comprising a thermally degradable polymer and a non thermally degradable polymer there being an interaction between the infrared-absorbing material and the non degradable polymer to facilitate retention of the infrared-absorbing material in the donor element. The degradable and non degradable polymers are preferably copolymers both of which contain methacrylic acid as a monomer. The degradable polymer is preferably a copolymer of methoxyethyl cyanoacrylate and methacrylic acid preferably in molar proportions of from 1:1 to 12:1. The non degradable polymer is preferably a copolymer of methyl methacrylate and methacrylic acid, preferably in molar proportions of from 1:1 to 15:1. The element may be prepared from an aqueous solid particle dispersion which has been prepared by milling the components together in a ball mill.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: July 13, 2004
    Assignee: Eastman Kodak Company
    Inventors: Malcolm D. Purbrick, Marie C. Bunce, Phillip J. Coldrick, Danuta Gibson, Ian M. Newington, Dawn J. Jenkins
  • Solid particle dispersions and their use in the preparation of laser thermal media
    Publication number: 20030138723
    Abstract: A donor element for use in laser thermal imaging has a layer which comprises an infrared-absorbing material, an image dye and a polymer matrix comprising a thermally degradable polymer and a non thermally degradable polymer there being an interaction between the infrared-absorbing material and the non degradable polymer to facilitate retention of the infrared-absorbing material in the donor element. The degradable and non degradable polymers are preferably copolymers both of which contain methacrylic acid as a monomer. The degradable polymer is preferably a copolymer of methoxyethyl cyanoacrylate and methacrylic acid preferably in molar proportions of from 1:1 to 12:1. The non degradable polymer is preferably a copolymer of methyl methacrylate and methacrylic acid, preferably in molar proportions of from 1:1 to 15:1.
    Type: Application
    Filed: September 25, 2002
    Publication date: July 24, 2003
    Applicant: Eastman Kodak Company
    Inventors: Malcolm D. Purbrick, Marie C. Bunce, Phillip J. Coldrick, Danuta Gibson, Ian M. Newington, Dawn J. Jenkins