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. 28, 1976
Filed:
Aug. 01, 1974
Applicant:
Inventors:
Toranosuke Saito, Kobe, JA;
Daiichiro Tanaka, Arao, JA;
Assignee:
Sanko Chemical Company Ltd., , JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41M / ;
U.S. Cl.
CPC ...
428306 ; 428537 ;
Abstract
In a pressure sensitive recording paper which comprises in combination: a dyestuff precursor or dyestuff precursor solution and a dyestuff acceptor composition which is capable of color formation by reaction with said dyestuff precursor, the dyestuff acceptor consists essentially of a polyvalent metal salt of 3-position-substituted salicylic acid derivatives having at least 12, preferably at least 19 carbon atoms.