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:
Dec. 06, 1994
Filed:
Sep. 27, 1993
Applicant:
Inventors:
Assignee:
Xerox Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430 59 ;
Abstract
A process for the preparation of aryl amine polycondensation polymers comprising the interfacial polymerization of an aryl amine diol dissolved in an alkaline aqueous phase, to which has been added a water miscible organic solvent, with a bifunctional acid halide dissolved in a water immiscible organic solvent, and wherein said polymers possess a high molecular weight of from between about 50,000 to about 350,000, and narrow molecular weight distribution M.sub.w /M.sub.n of from about 1 to about 4.