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:
May. 17, 1983
Filed:
Sep. 08, 1981
Applicant:
Inventor:
Jun Sasaki, Asaka, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430113 ; 430114 ; 430137 ; 430904 ;
Abstract
A process for producing a liquid developer for electrostatic photography is disclosed. In the process, a dispersion of fine polymer particles in a non-polar solvent is mixed with a dye that is insoluble in said non-polar solvent and which is soluble in the monomer which is at least one component of the polymer. The polymer particles are then colored by removing from the dispersion a second solvent which dissolves the dye, is miscible with the non-polar solvent and which is capable of swelling at least part of the polymer in such a manner that said second solvent is present in said dye-containing polymer dispersion while the removal is continued.