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:
Jan. 24, 2012
Filed:
May. 29, 2006
Atsushi Jikihara, Saijo, JP;
Atsushi Jikihara, Saijo, JP;
Kuraray Co., Ltd., Kurashiki-shi, JP;
Abstract
In the present invention, a dispersion that has excellent dispersion efficiency, shows hardly any premature graying, and exhibits excellent dispersion stability and storage stability when heated is prepared, and the thermal recording material excellent in color developing sensitivity and whiteness of the background is provided. The present invention provides a thermal recording material including a support and a thermosensitive coloring layer that is provided on the support and contains an electron-donating colorless dye and an electron-accepting compound, wherein the thermosensitive coloring layer contains a polyvinyl alcohol-based resin (A) containing a carboxyl group that has been produced by saponification of polyvinyl ester obtained by the polymerization in the presence of aldehydes or ketones and that has an absorbance at 280 nm of 0.20 to 0.85 obtained from an ultraviolet absorption spectrum of a 0.1 wt % aqueous solution thereof.