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. 21, 2000
Filed:
Jan. 28, 1998
David J Rainbow, Centerville, OH (US);
NCR Corporation, Dayton, OH (US);
Abstract
A thermal transfer medium with widely variable properties is obtained through the use of a thermosoftenable coating with regions or layers with distinct viscosity values and hot tack properties. The top surface of the coating has a high concentration of polymers obtained from selectively curable monomers and the bottom surface of the coating has a high concentration of uncured monomers which are selectively curable. The top surface of the coating provides high adhesion to a receiving substrate and the bottom surface of the coating provides reduced adhesion to the supporting substrate of the thermal transfer medium. This allows for rapid transfer and high adhesion to a receiving substrate. Selected thermal transfer media will form images on rough stock and/or will form images with high speed printers. Methods for preparing such thermal transfer media comprise forming a coating containing selectively curable monomers and/or oligomers on a flexible supporting substrate and curing a portion of selectively curable monomers at the top surface of the coating to form polymers, preferably by exposure to visible or UV light.