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, 1999
Filed:
Jan. 14, 1998
Applicant:
Inventors:
Lloyd A Lobo, Webster, NY (US);
Kenneth B Quinn, Rochester, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; G03C / ;
U.S. Cl.
CPC ...
516 77 ; 210705 ; 210732 ; 430569 ; 516103 ; 516136 ; 516928 ;
Abstract
A process of washing an emulsion such as a silver halide emulsion which contains a hydrophilic colloid comprises deionizing the emulsion and coagulating the emulsion with an anionic polymer and separating the coagulum from the supernatant and resuspending the coagulum with hydrophilic colloid, water and a base.