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:
Dec. 10, 2013
Filed:
Nov. 19, 2009
Gerhard Stork, Flensburg, DE;
Annette Schreiber, Kosel, DE;
Diana Valentina Becerra Siabato, Flensburg, DE;
Gerhard Stork, Flensburg, DE;
Annette Schreiber, Kosel, DE;
Diana Valentina Becerra Siabato, Flensburg, DE;
Mitsubishi HiTec Paper Europe GmbH, Flensburg, DE;
Abstract
A proposed heat-sensitive recording material comprises a substrate, a heat-sensitive recording layer containing color formers and color acceptors, and a protective layer covering this heat-sensitive recording layer. The heat-sensitive recording layer has, as color acceptor, at least 66⅔ percent by weight of 4,4'-dihydroxydiphenyl sulfone based on the total percentage of color acceptors in the heat-sensitive recording layer, and the protective layer has, as binder, at least 60 percent by weight of diacetone-modified polyvinyl alcohol based on the total percentage of binder in the protective layer.