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:
Sep. 30, 1986
Filed:
Jun. 06, 1985
Applicant:
Inventor:
Masahiro Miyauchi, Funabashi, JP;
Assignee:
Mitsubishi Paper Mills, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41M / ;
U.S. Cl.
CPC ...
346209 ; 346200 ; 346226 ; 427152 ;
Abstract
In a heat-sensitive recording sheet comprising (1) a substrate, (2) a heat-sensitive color-developing layer provided on said substrate, composed essentially of a colorless or light-colored dye precursor and a color developer capable of allowing said dye precursor to develop a color by reacting with the dye precursor when heated and, as necessary, (3) an overcoat layer provided on said heat-sensitive color-developing layer, improvements in printability, storability, etc. can be obtained by allowing the heat-sensitive color-developing layer and/or the overcoat layer to contain a boric acid ester.