IP Library › Granted Patent US 7,799,751
Granted Patent B2
US 7,799,751 · App. 11/690,326 · Granted Sep 21, 2010

Cleaning composition

Assignee: The Clorox Company
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Quick Facts
Patent No.
US 7,799,751
App. No.
11/690,326
Granted
Sep 21, 2010
Kind
B2
Abstract

An improved cleaning composition adapted to clean a variety of hard surfaces. The improved cleaning composition includes a cationic biocide that includes biguanide compounds and/or quats.

Claims (20)

1. A cleaning wipe loaded with a cleaning composition comprising:

a. a cleaning composition comprising:

i. a quaternary ammonium compound,

ii. about 0.2 to 2.5 weight percent of a biocide release agent selected from the group consisting of potassium citrate, sodium tartrate, potassium tartrate, potassium lactate, sodium lactate, salicylate salts of sodium and/or potassium, magnesium sulphate, and mixtures thereof, and

b. a cleaning wipe comprising:

i. at least one material, with anionic species sites, selected from the group consisting of: wood pulp, polyester, rayon, nylon, polypropylene, polyethylene, cellulose polymers and any blend or combination thereof,

ii. at least one nonwoven material selected from the group consisting of: meltblown, coform, air-laid, spun bond, wet-laid, bonded-carded web materials, hydroentagled and spulaced materials, and

wherein the biocide release agent has a higher affinity for the anionic species sites than the quat.

2. The cleaning wipe of claim 1 wherein the cleaning composition comprises about 0.175-0.6% by weight of the quaternary ammonium compound.

3. The cleaning wipe of claim 1 wherein a sufficient amount of biocide release agent is included in the cleaning composition to reduce the quaternary ammonium compound retention in the cleaning wipe to less than about 50%.

4. The cleaning wipe of claim 1 wherein the quaternary ammonium compound has an effective ionic strength of at least 5×10 −3 mol/l.

5. A method for increasing the release of a cationic biocide from a cleaning wipe comprising the steps of:

a. forming an absorbent and/or adsorbent material, with anionic species sites, selected from the group consisting of: wood pulp, polyester, rayon, nylon, polypropylene, polyethylene, and any blend or combination thereof,

b. applying a cationic biocide to the absorbent and/or adsorbent material;

c. applying from about 0.2 to 2.5 weight percent of a cationic biocide release agent selected from the group consisting of: potassium citrate, sodium tartrate, potassium tartrate, potassium lactate, sodium lactate, salicylate salts of sodium and/or potassium, magnesium sulphate, and mixtures thereof, to the absorbent and/or adsorbent material, and

wherein the biocide release agent has a higher affinity for the anionic species sites than the cationic biocide.

6. The method of claim 5 wherein the cationic biocide and the biocide release agent are applied to the absorbent and/or adsorbent material at the same time.

7. The method of claim 5 wherein the biocide release agent is at least partially applied to the absorbent and/or adsorbent material after the cationic biocide has been applied to the absorbent and/or adsorbent material.

8. The method of claim 5 wherein the cationic biocide is a quaternary ammonium compound.

9. The method of claim 5 wherein about 0.05-5% by weight of cationic biocide is applied to the absorbent and/or adsorbent material.

Continuity (5)
Continuation 1138595600 · Mar 21, 2006
Continuation In Part 0993938300 · Aug 24, 2001
Continuation In Part 0993917900 · Aug 24, 2001
Continuation In Part 0973764100 · Dec 14, 2000
Related Publication 20070185004A1 · Aug 9, 2007