Elizabeth P Gossett

US Patent:

6399555, Jun 4, 2002

Filed:

May 18, 2001

Appl. No.:

09/861049

Inventors:

Michael H. Robbins - Hilden, DE
Jennifer C. Julian - Castro Valley CA
Suzanne M. Thompson - Oakland CA
Gary L. Robinson - Livermore CA
Clement K. Choy - Alamo CA
Elizabeth A. Gossett - Livermore CA

Assignee:

The Clorox Company - Oakland CA

International Classification:

C11D 129

US Classification:

510238, 510191, 510421, 510422, 510423, 510424, 510426, 510427, 510432, 510434, 510499, 510506, 134 40, 134 42

Abstract:

An aqueous hard surface cleaner with improved soil removal is provided and has, as components, the following: (a) either an anionic, nonionic, amphoteric surfactant, and mixtures thereof with optionally, a quaternary ammonium surfactant, the total amount of the surfactants being present in a cleaning effective amount; (b) at least one water-soluble or dispersible organic solvent having a vapor pressure of at least 0. 001 mm Hg at 25Â C. , present in a solubilizingâor dispersionâeffective amount (c) a combination of (i) an incompletely neutralized potassium ethylenediamineâtetraacetate (EDTA) and (ii) a precipitating co-builder as chelating agents present in an amount effective to enhance soil removal in said cleaner; and (d) the remainder, water.

US Patent:

62457284, Jun 12, 2001

Filed:

Oct 25, 1999

Appl. No.:

9/427175

Inventors:

Michael H. Robbins - Hilden, DE
Jennifer C. Julian - Castro Valley CA
Suzanne M. Thompson - Oakland CA
Gary L. Robinson - Livermore CA
Clement K. Choy - Alamo CA
Elizabeth A. Gossett - Livermore CA

Assignee:

The Clorox Company - Oakland CA

International Classification:

C11D 129
C11D 172
C11D 330
C11D 343

US Classification:

510238

Abstract:

An aqueous hard surface cleaner with improved soil removal is provided and has, as components, the following: (a) either an anionic, nonionic, amphoteric surfactant, and mixtures thereof with, optionally, a quaternary ammonium surfactant, the total amount of the surfactants being; present in a cleaning effective amount; (b) at least one water-soluble or dispersible organic solvent having a vapor pressure of at least 0. 001 mm Hg at 25. degree. C. , present in a solubilizing--or dispersion--effective airmount; (c) a combination of (i) an incompletely neutralized potassium ethylenediamine--tetraacetate (EDTA) and (ii) a precipitating co-builder as chelating agents present in an amount effective to enhance soil removal in said cleaner; and (d) the remainder, water.