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, 1976
Filed:
Jul. 01, 1974
Applicant:
Inventors:
Andrew Torok, Parsippany, NJ (US);
Thomas F Walsh, Florham Park, NJ (US);
Assignee:
Georgia Kaolin Company, Elizabeth, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41L / ; B41M / ; C08K / ; C09C / ;
U.S. Cl.
CPC ...
282 275 ; 106 145 ; 106 19 ; 106 20 ; 1062 / ; 106309 ; 428913 ;
Abstract
Improved reactive color developing substrates for manifold copy systems are produced by controlled acid treatment of smectite clay minerals, followed by severe attrition grinding to produce an aqueous colloidal suspension of the acid treated smectite. Thereupon, the colloidalized acid treated smectite is combined with an aqueous suspension of platy kaolinite, thoroughly blended and co-precipitated by the addition of appropriate flocculants such as aluminum sulfate.