Patents by Inventor Terry L. Bluhm

Terry L. Bluhm 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).

  • Processes for the preparation of phthalocyanines
    Patent number: 5153313
    Abstract: A process for the preparation of phthalocyanine composites which comprises adding a metal free phthalocyanine, a metal phthalocyanine, a metalloxy phthalocyanine or mixtures thereof to a solution of trifluoroacetic acid and a monohaloalkane; adding to the resulting mixture a titanyl phthalocyanine; adding the resulting solution to a mixture that will enable precipitation of said composite, and recovering the phthalocyanine composite precipitated product.
    Type: Grant
    Filed: June 4, 1990
    Date of Patent: October 6, 1992
    Assignee: Xerox Corporation
    Inventors: Peter M. Kazmaier, Hai-Yen T. Tran, James M. Duff, James D. Mayo, Gordon K. Hamer, Terry L. Bluhm, Cheng K. Hsiao
  • Photoconductive imaging members
    Patent number: 5122429
    Abstract: A photoresponsive imaging member comprised of a photogenerating layer, and a charge transport layer comprised of charge transport molecules and a resin binder mixture comprised of a polycarbonate and an elastomeric block copolymer.
    Type: Grant
    Filed: August 24, 1990
    Date of Patent: June 16, 1992
    Assignee: Xerox Corporation
    Inventors: Pudupadi R. Sundararajan, Dasarao K. Murti, Terry L. Bluhm
  • Processes for the preparation of phthalocyanines imaging member
    Patent number: 5102758
    Abstract: A process for the preparation of phthalocyanine composites which comprises adding a metal free phthalocyanine, a metal phthalocyanine, a metalloxy phthalocyanine or mixtures thereof to a solution of trifluoroacetic acid and a monohaloalkane; adding to the resulting mixture a titanyl phthalocyanine; adding the resulting solution to a mixture that will enable precipitation of said composite, and recovering the phthalocyanine composite precipitated product.
    Type: Grant
    Filed: July 23, 1991
    Date of Patent: April 7, 1992
    Assignee: Xerox Corporation
    Inventors: Peter M. Kazmaier, Hai-Yen T. Tran, James M. Duff, James D. Mayo, Gordon K. Hamer, Terry L. Bluhm, Cheng K. Hsiao
  • Processes for the preparation of phthalocyanines for electrophotography
    Patent number: 5100752
    Abstract: A process for the preparation of x-metal free phthalocyanine which comprises (i) initially preparing a mixture of alpha- and x-metal free phthalocyanines from alpha-phthalocyanine with a grinding or mixing device, (ii) converting the above mixture to x-metal free phthalocyanine by the addition of an organic solvent, (iii) separating the x-metal free phthalocyanine therefrom, and thereafter washing the x-metal free phthalocyanine with a basic solution.
    Type: Grant
    Filed: May 7, 1990
    Date of Patent: March 31, 1992
    Assignee: Xerox Corporation
    Inventors: Cheng-Kuo Hsaio, Ah-Mee Hor, Giuseppa Baranyi, Terry L. Bluhm, James F. Duff, George Liebermann, Eric B. Wasmund
  • Photoconductive imaging members with liquid crystalline thermotropic polymers
    Patent number: 5030533
    Abstract: A photoresponsive imaging member comprised of a photogenerating layer, and a charge transport layer comprised of hole transport molecules dispersed in a resin binder mixture wherein at least one of the resins is a liquid crystalline thermotropic polymer.
    Type: Grant
    Filed: November 27, 1989
    Date of Patent: July 9, 1991
    Assignee: Xerox Corporation
    Inventors: Terry L. Bluhm, Pudupadi R. Sundararajan, Guerino Sacripante, Dasarao K. Murti
  • Toner and developer compositions containing biodegradable semicrystalline polyesters
    Patent number: 5004664
    Abstract: A toner composition comprised of semicrystalline polyester resin particles, especially polyhydroxyalkanoates, copolymers thereof, or blends, and pigment particles. Processes for the preparation of the semicrystalline polyester resins by ring opening polymerization of a monomer in the presence of a catalyst is also illustrated.
    Type: Grant
    Filed: February 27, 1989
    Date of Patent: April 2, 1991
    Assignee: Xerox Corporation
    Inventors: Timothy J. Fuller, Robert H. Marchessault, Terry L. Bluhm
  • Colored encapsulated toner compositions
    Patent number: 4766051
    Abstract: A cold pressure fixable colored toner composition comprised of a core containing a polymer in which is dispersed pigment particles selected from the group consisting of cyan, magenta, red, yellow pigments, and mixtures thereof, other than carbon blacks and magnetites; and encapsulated within a polymeric shell formulated by an interfacial polymerization.
    Type: Grant
    Filed: September 2, 1986
    Date of Patent: August 23, 1988
    Assignee: Xerox Corporation
    Inventors: Marcel P. Breton, Terry L. Bluhm, Kar P. Lok