Patents Assigned to Rexam Graphics
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Patent number: 5759636Abstract: 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: GrantFiled: December 18, 1996Date of Patent: June 2, 1998Assignee: Rexam Graphics, Inc.Inventors: Dene Harvey Taylor, Everett Wyman Bennett, Richard Scott Himmelwright, Douglas Allan Cahill, Weitong Shi
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Patent number: 5746817Abstract: 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: GrantFiled: August 16, 1996Date of Patent: May 5, 1998Assignee: Rexam Graphics Inc.Inventors: Boris Joseph Katsen, Richard S. Himmelwright, Barbara Jones Stewart, Nate R. Schwartz
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Patent number: 5707554Abstract: 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: GrantFiled: May 8, 1996Date of Patent: January 13, 1998Assignee: Rexam Graphics, IncorporatedInventors: Everett Wyman Bennett, Weitong Shi
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Patent number: 5688581Abstract: 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: GrantFiled: March 14, 1996Date of Patent: November 18, 1997Assignee: Rexam Graphics, IncorporatedInventors: Theresa M. Chagnon, Douglas Allan Cahill, Richard Scott Himmelwright, Dene Harvey Taylor
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Patent number: 5681681Abstract: 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: GrantFiled: June 7, 1995Date of Patent: October 28, 1997Assignee: Rexam Graphics Inc.Inventor: Ernest W. Ellis
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Patent number: 5672413Abstract: 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: GrantFiled: September 27, 1995Date of Patent: September 30, 1997Assignee: Rexam Graphics IncorporatedInventors: Dene Harvey Taylor, Douglas Allan Cahill
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Patent number: 5601959Abstract: 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: GrantFiled: January 13, 1995Date of Patent: February 11, 1997Assignee: Rexam Graphics, Inc.Inventors: Donald A. Brault, Douglas A. Cahill, Dene H. Taylor, Anthony K. Webb
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Patent number: 5488455Abstract: 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: GrantFiled: May 30, 1995Date of Patent: January 30, 1996Assignee: Rexam GraphicsInventors: Douglas A. Cahill, Donald A. Brault, Richard S. Himmelwright, Dene H. Taylor
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Patent number: 5483321Abstract: 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: GrantFiled: March 29, 1994Date of Patent: January 9, 1996Assignee: Rexam GraphicsInventors: Douglas A. Cahill, Donald A. Brault, Richard S. Himmelwright, Dene H. Taylor
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Patent number: 5478676Abstract: 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: GrantFiled: August 2, 1994Date of Patent: December 26, 1995Assignee: Rexam GraphicsInventors: Eran Turi, Marie B. Ray