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. 30, 2006
Filed:
Sep. 16, 2002
Applicants:
Duane S Treybig, Sugar Land, TX (US);
Kin-tai Chang, Sugar Land, TX (US);
Inventors:
Duane S Treybig, Sugar Land, TX (US);
Kin-Tai Chang, Sugar Land, TX (US);
Assignee:
Nalco Company, Naperville, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01F 17/22 (2006.01); C07C 233/89 (2006.01); C07C 235/86 (2006.01); C07C 237/50 (2006.01);
U.S. Cl.
CPC ...
Abstract
A quaternary surfactant comprising a cyclic diamine group, compositions comprising the quaternized amido cyclic amine surfactant, a gelled aqueous composition comprising the quaternized amido cyclic amine surfactant, use of the gelled aqueous well treatment applications and methods of preparation and intermediates used to prepare the quaternized amido cyclic amine surfactant.