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:
Aug. 24, 1976
Filed:
Dec. 19, 1973
Applicant:
Inventors:
Heinz Herrmann, Wiesbaden-Biebrich, DT;
Alfred Brechlin, Wiesbaden-Biebrich, DT;
Assignee:
Hoechst Aktiengesellschaft, , DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
252 / ; 96 / ; 427 17 ;
Abstract
This invention relates to an electrophotographic developer liquid comprising a dispersion of a colored, viscous solution of polymers containing about 0.01 to 10 per cent by weight of water, calculated on the weight of polymers present, in an electrically insulating carrier liquid having a kauri-butanol value of less than about 30 and in which at least one of the polymers is sparingly soluble. The invention also relates to a process for the preparation of the novel electrophotographic developer liquid.