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:
Oct. 15, 2013
Filed:
Jun. 15, 2011
Applicants:
Yongfu Wu, Rolla, MO (US);
Cynthia L. Rand, Sanford, MI (US);
Wanglin Yu, Pearland, TX (US);
Irina V. Graf, Lake Jackson, TX (US);
Inventors:
Yongfu Wu, Rolla, MO (US);
Cynthia L. Rand, Sanford, MI (US);
Wanglin Yu, Pearland, TX (US);
Irina V. Graf, Lake Jackson, TX (US);
Assignee:
Dow Global Technologies LLC, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11D 1/65 (2006.01);
U.S. Cl.
CPC ...
Abstract
Provided are compositions containing a compatible mixture of a cationic surfactant and an anionic surfactant. A composition according to the invention comprises: (a) a first surfactant of formula I: wherein R, R, R, and RY, X, and n are as defined below; (b) a second surfactant that is oppositely charged to the first surfactant.