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:
Jun. 10, 2008
Filed:
Jun. 27, 2003
Junpei Natsui, Tokyo, JP;
Yuji Tsuzuki, Tokyo, JP;
Kaoru Hamada, Tokyo, JP;
Takashi Date, Tokyo, JP;
Junpei Natsui, Tokyo, JP;
Yuji Tsuzuki, Tokyo, JP;
Kaoru Hamada, Tokyo, JP;
Takashi Date, Tokyo, JP;
Abstract
Provided is a thermally sensitive recording medium which exhibits high recording sensitivity, high heat resistance of ground color part and excellent preserving stability of images. A thermally sensitive recording medium, comprising a thermally sensitive recording layer containing a colorless or pale colored basic colorless dye and an organic color developing agent as main components on a substrate, wherein said thermally sensitive recording layer contains at least one compound represented by general formula (1) and contains at least one compound selected from the group consisting of 3-{[(phenylamino)carbonyl]amino}benzensulfoneamide represented by formula (2), an ureaurethane compound represented by formula (3) and a copolymer of glysidilmethacrylate and vinyl monomer (average molecular weight is 9000-11000, epoxy equivalent is 300-600 and melting point is 110° C. or less) as a stabilizer. (in the formula, Ris a hydrogen atom, a halogen atom, an alkyl group or alkoxy group) As a color developing agent a compound represented by general formula (4) is desirable. (in the formula, Ris an alkyl group of carbon number 1-4, an alkoxy group, a phenyl group or a hydrogen atom).