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:
Nov. 02, 1993
Filed:
Mar. 10, 1992
Applicant:
Inventors:
Assignee:
Ricoh Company Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428500 ; 428195 ; 428207 ; 428446 ; 428484 ; 428913 ; 428914 ;
Abstract
A thermal image transfer recording medium is disclosed, which comprises a substrate and an ink layer formed thereon comprising as the main components (i) a coloring agent and (ii) a copolymer consisting of at least a monomer selected from Group A consisting of acrylonitrile and methacrylonitrile and at least a monomer selected from Group B consisting of monomers represented by the following formula (I); ##STR1## wherein R.sup.1 represents hydrogen or a methyl group; and R.sup.2 represents hydrogen, a straight-chain or branched alkyl group having 1 to 4 carbon atoms, a glycidyl group, or a hydroxyalkyl group having 2 to 4 carbon atoms.