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:
Mar. 01, 2005
Filed:
May. 21, 2002
Applicants:
Thomas Klein, Köln, DE;
Joachim Voss, Leverkusen, DE;
Holger Schmidt, Dormagen, DE;
Fred Ebert, Leverkusen, DE;
Harry-günter Müller, Bergisch Gladbach, DE;
Inventors:
Thomas Klein, Köln, DE;
Joachim Voss, Leverkusen, DE;
Holger Schmidt, Dormagen, DE;
Fred Ebert, Leverkusen, DE;
Harry-Günter Müller, Bergisch Gladbach, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C11D003/26 ; C11D003/37 ; C08G073/10 ; C04B024/12 ;
U.S. Cl.
CPC ...
Abstract
The present invention relates to stable thixotropic polysuccinimide (PSI) dispersions, known as slurries, and to their use as additives for improving the flow properties of concrete, in oil wells, in acidic gel cleaners, and in drainage systems of tunnel constructions.