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. 02, 2006
Filed:
Sep. 17, 2003
Feng-lung Gordon Hsu, Tenafly, NJ (US);
Yun Peng Zhu, Fairlawn, NJ (US);
Feng-Lung Gordon Hsu, Tenafly, NJ (US);
Yun Peng Zhu, Fairlawn, NJ (US);
Unilever Home & Personal Care USA Division of Conopco, Inc., Greenwich, CT (US);
Abstract
A process of making a liquid laundry detergent composition comprising a polyanionic ammonium surfactant, the process comprising: forming the polyanionic ammonium surfactant by mixing a liquid carrier with: (a1) from about 0.03% to about 85%, by weight of the composition, of a conjugate acid of an anionic surfactant; and (a2) from about 10% to about 50%, based on the molar equivalent of the amount of the conjugate acid, of a polyamine; (a3) wherein the mixing of (a1) and (a2) is carried out in the substantial absence of bases other than the polyamine. Also included is a process wherein the monoanionic surfactant is formed along with the polyanionic ammonium surfactant, in which case a base other than the polyamine may be present but than the amount of such base should be no greater than the required stoichiometric amount of the base to form the monoanionic surfactant.