Patents Assigned to Rexam Graphics
  • Patent number: 5759636
    Abstract: A method for forming electrographic imaging elements comprising a uniform dielectric layer is disclosed. The method comprises coating a conductive coating composition containing polymerizable precursors onto a base, curing the composition to form a conductive layer, and coating a dielectric layer on top of the conductive layer. The elements can be used to produce images have higher image density, reduced background, reduced grain, reduced mottle, reduced overtoning, and greater small-scale uniformity than comparable images formed on electrographic imaging elements produced by other methods. The elements are particularly useful for forming large size colored images, such as are required for posters, displays, other indoor advertising.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: June 2, 1998
    Assignee: Rexam Graphics, Inc.
    Inventors: Dene Harvey Taylor, Everett Wyman Bennett, Richard Scott Himmelwright, Douglas Allan Cahill, Weitong Shi
  • Patent number: 5746817
    Abstract: Provided is an ink jet ink comprised of water, pigment, a water immiscible organic compound exhibiting a high boiling point, and a water miscible compound. The combination of the water immiscible compound and the water miscible compound provides for excellent anti-crusting properties, and provides an ink which upon printing makes a round dot, and which printed images exhibit excellent waterfastness, lightfastness and wet rub resistance.
    Type: Grant
    Filed: August 16, 1996
    Date of Patent: May 5, 1998
    Assignee: Rexam Graphics Inc.
    Inventors: Boris Joseph Katsen, Richard S. Himmelwright, Barbara Jones Stewart, Nate R. Schwartz
  • Patent number: 5707554
    Abstract: A polymeric material which is both electrically conductive, possesses surface release properties and can be formed into high-gloss, visually transparent coatings; is polymerized from a liquid mixture of three free radical, addition polymerizable materials by radiation induced polymerization. The liquid mixture contains: 1 to 80 weight parts of an ethylenically unsaturated, quaternary ammonium precursor; 0.1 to 10 weight parts of an ethylenically unsaturated, organo-silicone precursor; and, 5 to 95 weight parts of a multifunctional precursor containing at least two ethylenically unsaturated groups, which is a multifunctional monomeric material, an oligomeric material or a combination thereof. Optionally, the liquid mixture may contain up to 60 weight parts of an ethylenically unsaturated acidic precursor and up to 50 weight parts of one other monofunctional precursor containing one ethylenically unsaturated group.
    Type: Grant
    Filed: May 8, 1996
    Date of Patent: January 13, 1998
    Assignee: Rexam Graphics, Incorporated
    Inventors: Everett Wyman Bennett, Weitong Shi
  • Patent number: 5688581
    Abstract: An electrographic image transfer element having a protective coating is disclosed. The protective coating is a single protective layer that contains a fluoropolymer and an acrylic polymer. Because the protective coating is resistant to surface pitting, dirt, stains, and general degradation, images formed from the element can be used effectively on billboards, banners, and other outdoor signs.
    Type: Grant
    Filed: March 14, 1996
    Date of Patent: November 18, 1997
    Assignee: Rexam Graphics, Incorporated
    Inventors: Theresa M. Chagnon, Douglas Allan Cahill, Richard Scott Himmelwright, Dene Harvey Taylor
  • Patent number: 5681681
    Abstract: Unique laser ablation transfer ("LAT") imaging films presenting options of flexibility and versatility hitherto alien to this art are produced, on-demand, by toning appropriate substrate as to provide thereon an ablative discontinuous film topcoat comprising a contrast imaging amount of conventional or modified toner particulates.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 28, 1997
    Assignee: Rexam Graphics Inc.
    Inventor: Ernest W. Ellis
  • Patent number: 5672413
    Abstract: An element for using hot melt inks in an image transfer system is disclosed. The element has a particular structure which can be imaged with inkjet apparatus and hot melt ink, and the image may be transferred onto a substrate which is difficult to image directly, using heat and pressure. The resulting imaged article and process of obtaining it is also disclosed. The element contains, in order, a temporary carrier sheet, a protective layer and an image receptive adhesive layer, both layers having well defined composition and properties.
    Type: Grant
    Filed: September 27, 1995
    Date of Patent: September 30, 1997
    Assignee: Rexam Graphics Incorporated
    Inventors: Dene Harvey Taylor, Douglas Allan Cahill
  • Patent number: 5601959
    Abstract: A process and associated element for forming an image on an substrate using an electrographic element comprising a releasable dielectric image receptive layer supported on an electrically conductive carrier sheet by applying an adhesive coating on the substrate front surface, producing a toned image on the image receptive dielectric layer, contacting the image to the adhesive layer thereby adhering the electrographic element to the substrate, and separating and removing the carrier sheet from the image receptive layer, whereby the image receptive layer and the toned image remain on the substrate.
    Type: Grant
    Filed: January 13, 1995
    Date of Patent: February 11, 1997
    Assignee: Rexam Graphics, Inc.
    Inventors: Donald A. Brault, Douglas A. Cahill, Dene H. Taylor, Anthony K. Webb
  • Patent number: 5488455
    Abstract: Novel electrographically produced products are disclosed which include large format posters, billboards and the like produced by a process employing a novel electrographic element which includes a base, a release layer and a combined transparent dielectric and adhesive layer which is substantially tack-free, at ambient pressure and temperature. The new product is made by an imaging process involving:A) producing a toned image layer on the surface of the electrographic element and B) pressure laminating a receptor substrate at an elevated temperature to the toned image layer to form the completed electrographic image. The base and release layer may be stripped from the dielectric/adhesive layer which then serves to protect the transferred, toned, electrographically generated image from abrasion and environmental contaminants.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: January 30, 1996
    Assignee: Rexam Graphics
    Inventors: Douglas A. Cahill, Donald A. Brault, Richard S. Himmelwright, Dene H. Taylor
  • Patent number: 5483321
    Abstract: A novel process is disclosed for the manufacture of protected, distortion-free, full-color electrographic images for use on large format posters, billboards and the like. A novel electrographic element is also disclosed, which includes a base, a release layer and a combined transparent dielectric and adhesive layer which is substantially tack-free, at ambient pressure and temperature. The novel electrographic imaging process includes the steps of: A) producing a toned image layer on the surface of the electrographic element and B) pressure laminating the receptor substrate, optionally at an elevated temperature to the toned image layer to form the completed electrographic image. The base and release layer may be stripped from the dielectric/adhesive layer which then serves to protect the transferred, toned, electrographically generated image from abrasion and environmental contaminants.
    Type: Grant
    Filed: March 29, 1994
    Date of Patent: January 9, 1996
    Assignee: Rexam Graphics
    Inventors: Douglas A. Cahill, Donald A. Brault, Richard S. Himmelwright, Dene H. Taylor
  • Patent number: 5478676
    Abstract: A current collector which uses a conductive primer layer under an electrode layer to improve the contact and adhesion of the electrode layer to a supporting member, wherein the conductive primer layer is composed of a polymeric material having pendant carboxylic acid groups crosslinked with a multifunctional crosslinking agent, and a conductive filler. The current collector may be used inter alia for making batteries.
    Type: Grant
    Filed: August 2, 1994
    Date of Patent: December 26, 1995
    Assignee: Rexam Graphics
    Inventors: Eran Turi, Marie B. Ray