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. 16, 1999
Filed:
Jan. 20, 1999
Applicant:
Inventors:
John C DuBose, Summerville, SC (US);
Andrew D Johnson, Goose Creek, SC (US);
Samuel Shaun Murphree, Summerville, SC (US);
Edzard Tholema, Odenthal, DE;
Helmut Hoffmann, Leverkusen, DE;
Wolfgang Zarges, Koln, DE;
Wolfgang Frank, Koln, DE;
Bettina Burkhardt, Krefeld, DE;
Assignees:
Bayer Corporation, Pittsburgh, PA (US);
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C09B / ; D06P / ; C09D / ;
U.S. Cl.
CPC ...
534558 ; 534559 ; 534560 ; 534582 ; 534728 ; 534771 ; 534772 ; 8527 ; 8664 ; 106 3145 ; 106 3148 ;
Abstract
The present invention relates to a process for desalting aqueous suspensions containing an organic diazonium compound and electrolytes containing Na ions, in which the aqueous suspension is passed through a semipermeable membrane.