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. 19, 2012
Filed:
Sep. 26, 2007
Junpei Natsui, Tokyo, JP;
Hiroshi Kohama, Tokyo, JP;
Mamoru Suga, Tokyo, JP;
Yoshimune Aosaki, Fukuoka, JP;
Junpei Natsui, Tokyo, JP;
Hiroshi Kohama, Tokyo, JP;
Mamoru Suga, Tokyo, JP;
Yoshimune Aosaki, Fukuoka, JP;
Nippon Paper Industries Co., Ltd, Tokyo, JP;
API Corporation, Osaka, JP;
Abstract
Provided is a thermal recording material superior in color development sensitivity, and having good preservation properties such as in heat resistance, moisture resistance, water resistance and the like. A thermal recording material comprising a support and a thermal recording layer comprising a colorless or pale basic leucodye and a developer to develop color of the basic leucodye, wherein the aforementioned developer comprises a first developer which is a condensate or condensed composition represented by the following formula (I) and a second developer other than the first developer, and the proportion of the first developer to the total amount of the developers is not less than 2 wt % and less than 50 wt %: wherein R is a hydrogen atom, a halogen atom, a hydroxyl group, a lower alkyl group, an alkoxyl group, a cyano group, a nitro group, an aryl group or an aralkyl group, R in the number of m may be the same or different, m is an integer of 0 to 3, n is an integer of 0 to 3, and X and Y are each a hydrogen atom, an alkyl group or an aryl group.