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. 18, 1984
Filed:
Nov. 21, 1983
Shojiro Watanabe, Shizuoka, JP;
Hiroharu Matsukawa, Shizuoka, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A heat-sensitive recording paper is disclosed. The paper is comprised of a support base having provided thereon, an almost colorless electron donating dye, an organic acid capable of coloration upon contacting the dye and a phenolic compound. The phenolic compound is represented by the general formula (I): ##STR1## wherein R.sub.1 is a branched alkyl group having 3 to 8 carbon atoms, R.sub.2 is a hydrogen atom or a branched alkyl group having 3 to 8 carbon atoms and R.sub.3 is a hydrogen atom or a methyl group. The paper is capable of producing clear images without fogging and the images produced undergo a reduced amount of fading due to the influence of humidity or heat.