Donald A Brault

US Patent:

56019599, Feb 11, 1997

Filed:

Jan 13, 1995

Appl. No.:

8/372858

Inventors:

Donald A. Brault - Southbridge MA
Douglas A. Cahill - Belchertown MA
Dene H. Taylor - Holyoke MA
Anthony K. Webb - Vancouver WA

Assignee:

Rexam Graphics, Inc. - South Hadley MA

International Classification:

G03G 1301

US Classification:

430126

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.

US Patent:

54833213, Jan 9, 1996

Filed:

Mar 29, 1994

Appl. No.:

8/219395

Inventors:

Douglas A. Cahill - Belchertown MA
Donald A. Brault - Granby MA
Richard S. Himmelwright - Wilbraham MA
Dene H. Taylor - Holyoke MA

Assignee:

Rexam Graphics - South Hadley MA

International Classification:

G03G 500
B44C 100

US Classification:

355200

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.

US Patent:

54145023, May 9, 1995

Filed:

Feb 18, 1994

Appl. No.:

8/198599

Inventors:

Douglas A. Cahill - Belchertown MA
Donald A. Brault - Granby MA
Richard S. Himmelwright - Wilbraham MA

Assignee:

Rexham Graphics Inc. - South Hadley MA

International Classification:

G03G 1520

US Classification:

355278

Abstract:

A novel two step 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, which is used in the process, comprises a carrier layer; optionally, a protective layer; a conductive layer; a dielectric layer; and a substantially tack-free, adhesive layer which is activated at a pressure and a temperature which is above ambient pressure and temperature of the electrographic element. The novel electrographic imaging process comprises: A) producing a toned image layer on the surface of the electrographic element, so that the toned image layer is adhered to the surface of the adhesive layer; and B) pressure laminating the receptor substrate at an elevated temperature to the toned image layer to form the completed electrographic image. Optionally, the carrier layer is stripped from the conductive or protective layer which then serves to protect the electrographic image from abrasion and environmental contaminants. Alternatively, the carrier layer is conductive and, along with the conductive layer (if present), is stripped from the dielectric layer which then serves to protect the electrographic image from abrasion and environmental contaminants.

US Patent:

54001269, Mar 21, 1995

Filed:

Feb 18, 1994

Appl. No.:

8/198469

Inventors:

Douglas A. Cahill - Belchertown MA
Donald A. Brault - Granby MA
Richard S. Himmelwright - Wilbraham MA

Assignee:

Rexham Graphics, Inc. - South Hadley MA

International Classification:

G03G 800
B44C 100

US Classification:

355278

Abstract:

An electrographic imaging element having the following structure: a) a carrier layer, b) a conductive layer, c) a dielectric layer, and d) a substantially tack-free, adhesive layer which is activated at a pressure and a temperature which is above ambient pressure and temperature of the electrographic element and wherein a toned electrographically image generated on the element is produced on the surface of the adhesive layer.

US Patent:

57891346, Aug 4, 1998

Filed:

Aug 22, 1996

Appl. No.:

8/701379

Inventors:

Donald Armand Brault - Southbridge MA
Douglas Allan Cahill - Belchertown MA
Dene Harvey Taylor - Holyoke MA
Anthony Keith Webb - Vancouver WA

Assignee:

Rexam Graphics, Inc. - South Hadley MA

International Classification:

G03G 1314

US Classification:

430126

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.

US Patent:

53857712, Jan 31, 1995

Filed:

May 10, 1993

Appl. No.:

8/058259

Inventors:

Carl V. Willetts - Penenden Heath, GB
Cynthia F. Klausner - Hadley MA
Donald A. Brault - Granby MA
Bryan W. M. Crosbie - Whitstable, GB
Alan F. Stewart - Pelham MA
Dene H. Taylor - Holyoke MA

Assignee:

Rexham Graphics Inc. - So. Hadley MA

International Classification:

B32B 300

US Classification:

428211

Abstract:

Provided is an electrographic printing paper suitable for the printing of a quality image, which printing paper is pastable and is therefore useful in pastable displays, including outdoor billboards. The electrographic printing paper is comprised of a dielectric coating on a conductive base paper which exhibits wet strength and wet expansion properties suitable for pasted displays. The conductive base paper contains a wet strength agent and a sizing or coating of a conductivizing composition comprised of a binder and a substantially water insoluble conductivizing agent.

US Patent:

58373756, Nov 17, 1998

Filed:

Dec 20, 1996

Appl. No.:

8/771577

Inventors:

Donald Armand Brault - Granby MA
Douglas Allan Cahill - Belchertown MA
Richard Scott Himmelwright - Welbraham MA
Dene Harvey Taylor - Holyoke MA

Assignee:

Rexham Graphics Incorporated - South Hadley MA

International Classification:

B41M 500

US Classification:

4284111

Abstract:

A novel two step process is disclosed for the manufacture of protected, distortion-free, full-color ink jet images for use on large format posters, billboards and the like. A novel ink receptive element, which is used in the process, comprises a temporary carrier layer; a protective layer; and an adhesive ink receptive layer. The novel imaging process comprises: A) depositing an ink image layer on the surface of the ink receptive element, so that the ink image layer is adhered to the surface of the adhesive, ink receptive layer; B) pressure laminating the receptor substrate to the ink image layer to form a laminated image element; and C) removing the temporary carrier layer from the protective layer of the laminated image element to form a protected imaged substrate. The protective layer then serves to protect the ink image from abrasion and environmental contaminants.

US Patent:

61655937, Dec 26, 2000

Filed:

Sep 29, 1998

Appl. No.:

9/162947

Inventors:

Donald Armand Brault - Granby MA
Douglas Allan Cahill - Belchertown MA
Richard Scott Himmelwright - Wilbraham MA
Dene Harvey Taylor - Holyoke MA

Assignee:

Rexam Graphics Incorporated - South hadley MA

International Classification:

B32B 300

US Classification:

428195

Abstract:

A novel two step process is disclosed for the manufacture of protected, distortion-free, full-color ink jet images for use on large format posters, billboards and the like. A novel ink receptive element, which is used in the process, comprises a temporary carrier layer; a protective layer; and an adhesive ink receptive layer. The novel imaging process comprises: A) depositing an ink image layer on the surface of the ink receptive element, so that the ink image layer is adhered to the surface of the adhesive, ink receptive layer; B) pressure laminating the receptor substrate to the ink image layer to form a laminated image element; and C) removing the temporary carrier layer from the protective layer of the laminated image element to form a protected imaged substrate. The protective layer then serves to protect the ink image from abrasion and environmental contaminants.