Cleaning composition

• US 7,799,751 B2
• Filed: 03/23/2007
• Issued: 09/21/2010
• Est. Priority Date: 12/14/2000
• Status: Active Grant

• Current Assignee: Clorox Company
• Original Assignee: Clorox Company
• Inventors: Shaheen, Elias A., De Leo, Malcolm, Mitra, Shuman, Blum, Robert L., Kilkenny, Andrew, Nelson, Shona L.
• Primary Examiner(s): DELCOTTO, GREGORY R
• Application Number:
  US11/690,326
• Publication Number:
  US 20070185004A1
• Time in Patent Office: 1,278 Days
• Field of Search: 510/136, 510/137, 510/138, 510/235, 510/238, 510/295, 510/433, 510/438, 510/504, 510/509, 510/382, 510/383, 510/384
• US Class Current: 510/438
• CPC Class Codes: C11D 1/62 Quaternary ammonium compounds
• CPC Class Codes: C11D 1/662 Carbohydrates or derivatives
• CPC Class Codes: C11D 1/835 Mixtures of non-ionic with cationic compounds
• CPC Class Codes: C11D 17/049 Cleaning or scouring pads; Wipes
• CPC Class Codes: C11D 3/046 Salts
• CPC Class Codes: C11D 3/3749 Polyolefins; Halogenated polyolefins; Natural or synthetic rubber; Polyarylolefins or halogenated polyarylolefins
• CPC Class Codes: C11D 3/3773 in liquid compositions
• CPC Class Codes: C11D 3/3776 Heterocyclic compounds, e.g. lactam
• CPC Class Codes: C11D 3/3796 Amphoteric polymers or zwitterionic polymers
• CPC Class Codes: C11D 3/43 Solvents
• CPC Class Codes: C11D 3/48 Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions

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

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<sup>−

3</sup> 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.