A liquid hard surface antimicrobial cleaning composition

A cleaning composition and composition technology, applied in the direction of detergent composition, organic cleaning composition, detergent compounding agent, etc.

Active Publication Date: 2014-06-25
UNILEVER IP HLDG BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008]The patent publications cited above do not address the problem of slow-acting antimicrobial compositions, nor do they disclose the invention disclosed and claimed for use in disinfecting hard surfaces. Synergistic combination of active substances that rapidly exert antibacterial effects

Method used

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  • A liquid hard surface antimicrobial cleaning composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-9

[0053] In the following Table – 1, the organisms used are bacteria P. aeruginosa ATCC 15442 (concentration of 10 7 cfu / ml); diluted 1:60 product (floor cleaner) in hard water. The soil used was Bovine Serum Albumin (BSA) at a final concentration of 0.03%. The sample pH was 11.0.

[0054] Table 1

[0055] Element weight% Neodol (C12E09) 3.0 Benzalkonium chloride 1.5 Essential Oil Actives As shown in table 2 Sodium carbonate 0.3 Di / tricarboxylates (as shown in Table 2) 1.0

[0056] Table – 2: Compositions according to Table – 1 prepared using dicarboxylic acids and thymol and / or terpineol at the concentrations indicated below:

[0057] Example Di / tricarboxylic acid Thymol (wt%) Terpineol (wt%) Log reduction Example 1 - - - 3.2 Example 2 - 0.125 - 3.1 Example 3 sodium malonate 0.125 - 6.4 Example 4 Sodium citrate 0.125 - 7.3 Example 5 - - 0.25 3.0 Example 6 ...

Embodiment 11-13

[0063] The data in Table 3 show that the antibacterial compositions of the present invention (Examples 12 and 13) are effective even at short contact times of about 30 seconds.

[0064] Examples 14-19: Antibacterial Efficacy of Compositions of the Invention Containing Different Di / Tricarboxylates

[0065] The antibacterial efficacy of the compositions as shown in Table - 4 was tested, diluted 1:60 with hard water, with a contact time of 5 minutes. The soil is 0.3% BSA. The bacteria used are P. aeruginosa ATCC 15442 (cell density of 10 7 cfu / ml). The pH of the composition is 11. The data are shown in Table-4.

[0066] Table 4

Embodiment 14-19

[0067] Element Example 14 (wt%) Example 15 (wt%) Example 16 (wt%) Example 17 (wt%) Example 18 (wt%) Example 19 (wt%) Neodol (C12E09) 3.0 3.0 3.0 3.0 3.0 3.0 Benzalkonium chloride 1.5 1.5 1.5 1.5 1.5 1.5 STPP* 1.5 1.5 1.5 1.5 1.5 1.5 Sodium carbonate 0.3 0.3 0.3 0.3 0.3 0.3 Di / tricarboxylate - sodium fumarate sodium phthalate sodium malate sodium malonate Sodium citrate Thymol 0.125 0.125 0.125 0.125 0.125 0.125 Terpineol 0.25 0.25 0.25 0.25 0.25 0.25 Bacterial log reduction 4.3 5.2 7.3 5.9 7.3 7.3

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Abstract

The invention relates to a liquid hard surface cleaning and disinfection composition. The present inventors have found that inclusion of benzalkoniuim chloride and selected salts of di or tricarboxylic acid when combined with thymol or terpineol provides synergistic antimicrobial action in a rapid fashion and such efficacy is obtained at very low concentrations of thymol and / or terpineol.

Description

technical field [0001] The present invention relates to a liquid hard surface cleaning and disinfecting composition. The present invention more particularly relates to a hard surface sanitizing composition that provides synergistic antibacterial efficacy. Background of the invention [0002] Liquid compositions are known for disinfecting and cleaning hard surfaces such as floors, walls, windows, doors, furniture, and table tops in a variety of indoor and outdoor locations. Toilets and bathrooms are other locations where microbial proliferation and liquid form sanitizing and cleaning compositions are widely used. Other types of hard surfaces that are cleaned by the composition include appliances and other items found in homes, offices and other public places. [0003] Two popular classes of disinfecting / sanitizing actives are (i) bleaches and (ii) phenolics. Halogen and active oxygen are two of the most effective bleaching agents. Bleaching agents are compounds that rele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D3/20C11D3/30C11D3/48
CPCC11D3/2082C11D3/2037C11D3/48C11D3/30
Inventor S.K.巴内A.查克拉博蒂M.T.萨吉
Owner UNILEVER IP HLDG BV
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