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. 15, 1991
Filed:
Apr. 11, 1989
Applicant:
Inventors:
Norihiko Nakashima, Wakayama, JP;
Yoshiji Kanoh, Wakayama, JP;
Atsushi Suzuki, Wakayama, JP;
Sadashi Ueda, Wakayama, JP;
Assignee:
Kao Corporation, Chuo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41M / ;
U.S. Cl.
CPC ...
503208 ; 503209 ; 503225 ;
Abstract
A thermosensitive recording medium comprises a substrate and a thermosensitive, coloring layer, provided on the substrate, comprising a binder, a colorless or light-colored electron-donating dye, an electron-accepting compound to react with the electron-donating dye and form a coloring matter and then an ester compound obtained from a fatty acid having 20 to 28 carbon atoms and a straight or cyclic alcohol, the ester having a melting point of 50 to 100 degree C. and one or more non-phenolic hydroxy group. It is improved in prevention from fogging and sensitivity.