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:
Feb. 06, 1990
Filed:
Dec. 02, 1988
Applicant:
Inventors:
Akitosi Igata, Omuta, JP;
Tamio Mikoda, Omuta, JP;
Assignee:
Mitsui Toatsu Chemicals, Incorporated, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41M / ; B41M / ;
U.S. Cl.
CPC ...
503227 ; 8471 ; 428195 ; 428211 ; 428913 ; 428914 ;
Abstract
Thermally printable sheets, such as paper coated with a polymer such as a polyester or a polyacrylonitrile are colored yellow by a thermal transfer printing process, e.g., using a decal printing transfer sheet, which employs as a yellow dyestuff a 2-pyridone of the formula ##STR1## wherein R.sup.1 is a lower alkyl, and R.sup.2 is lower alkyl, lower alkoxy-lower alkyl, carbocyclic aryl-lower alkyl, cyclo-lower alkyl, lower alkenyl or lower alkoxycarbonylmethyl.