The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 25, 2003
Filed:
Dec. 21, 2000
Michael J. Arnost, North Andover, MA (US);
Alain Bouchard, Boston, MA (US);
Yongqi Deng, Newton, MA (US);
Edward J. Dombrowski, Bellingham, MA (US);
Russell A. Gaudiana, Merrimack, NH (US);
Serajul Haque, Randolph, MA (US);
Fariza B. Hasan, Waltham, MA (US);
John L. Marshall, Lexington, MA (US);
Stephen J. Telfer, Arlington, MA (US);
William T. Vetterling, Lexington, MA (US);
Michael S. Viola, Burlington, MA (US);
Polaroid Corporation, Waltham, MA (US);
Abstract
There is described a thermal recording system which utilizes a donor element comprising a substrate and a thermal transfer material layer having a dye-containing phase which is amorphous and wherein the dye or dyes present in the amorphous phase form a continuous film. Imagewise heating of the medium transfers portions of the transfer layer to a receiver sheet, thus forming an image. The transfer layer may also include a non-dye phase comprising a thermal solvent. During the heating of the donor element, the crystalline thermal solvent melts and dissolves or liquefies at least a portion of the dye-containing phase, thereby lowering the temperature at which transfer of the transfer layer occurs.