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:
Apr. 26, 1983
Filed:
Apr. 22, 1981
Applicant:
Inventor:
Ronald Golden, Mt. Prospect, IL (US);
Assignee:
Champion International Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41M / ; B41M / ; B41M / ;
U.S. Cl.
CPC ...
282 275 ; 427150 ; 427151 ; 427152 ; 427261 ; 4283204 ; 4283206 ; 4283208 ; 428537 ; 428914 ;
Abstract
Desensitization of carbonless copy systems is provided by contacting an electron-accepting, color-reactant material capable of reacting with a substantially colorless chromogenic compound to form a visible image with a desensitizing agent comprising, in combination, a non-volatile, polyoxygenated compound and a strong chelating agent. In this manner, acid-reactive clay coatings typically used in carbonless copy paper systems are effectively desensitized and prevented from reacting with conventional chromogens, such as crystal violet lactone and benzoyl leuco methylene blue.