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:
Dec. 11, 1990
Filed:
Jan. 27, 1989
Applicant:
Inventors:
Assignee:
Kanzaki Paper Manufacturing Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B41M / ;
U.S. Cl.
CPC ...
503226 ; 427152 ; 503200 ; 503207 ; 503214 ;
Abstract
In a heat sensitive recording material comprising a substrate and a heat sensitive recording layer thereon containing a colorless or light-colored basic dye and a color acceptor which is reactive with the dye to form a color when contacted therewith, the recording material characterized in that an emulsion containing complex particles of colloidal silica and at least one of acrylic polymer and styrene-acrylic polymer is added to a coating composition for the recording layer and/or a coating composition for a protective layer formed on the recording layer.