Synergistic antimicrobial formulation

Patent metadata

Field	Value
Publication number	US-10064409-B2
Application number	US-201414888422-A
Country	US
Kind code	B2
Filing date	Apr 29, 2014
Priority date	May 3, 2013
Publication date	Sep 4, 2018
Grant date	Sep 4, 2018

Abstract

Home care formulation comprising a formulation of a sulfonic acid derivative and a carboxylic acid.

First claim

The invention claimed is:

1. A process of using a combination of
(a) 0.1 to 5.0 wt. % based on the total combination of a sulfonic acid of formula (I)

wherein R is selected from the group consisting of methyl and ethyl; and
(b) 0.05 to 20 wt. % based on the total combination of at least one carboxylic acid selected from the group consisting of formic acid, acetic acid, propanoic acid, oxalic acid lactic acid, citric acid, tartaric, mandelic acid, benzoic acid, salicylic acid, glutaric acid, sorbic acid, and succinic acid, in the presence of
(c) at least one surfactant, as an antimicrobial,
the process comprising:
contacting the combination with a surface or material.

2. A process of using an aqueous formulation comprising, on 100 parts by weight (pbw) of the formulation,
(a) 0.5 to 5.0 pbw of a sulfonic acid of formula (I)

wherein R is selected from the group consisting of methyl and ethyl; and
(b) 0.05 to 20.0 pbw of at least one carboxylic acid selected from the group consisting of formic acid, acetic acid, propanoic acid, oxalic acid lactic acid, citric acid, tartaric, mandelic acid, benzoic acid, salicylic acid, glutaric acid, sorbic acid, and succinic acid,
which formulation comprises at least 50 pbw of water,
as an antimicrobial,
the process comprising:
contacting the formulation with a surface or material.

3. A process of using a formulation comprising
(a) 0.1 to 5.0 wt. % based on the total formulation of a sulfonic acid of formula (I)

wherein R is selected from the group consisting of methyl and ethyl; and
(b) 0.05 to 20 wt. % based on the total formulation of at least one carboxylic acid selected from the group consisting of formic acid, acetic acid, propanoic acid, oxalic acid lactic acid, citric acid, tartaric, mandelic acid, benzoic acid, salicylic acid, glutaric acid, sorbic acid, and succinic acid, and
(c) a chloro benzene derivative,
as an antimicrobial, the process comprising:
contacting the formulation with a surface or material.

4. The process according to claim 2 wherein the formulation is
a home care formulation, such as selected from the group consisting of an all purpose cleaner, dishwashing liquid, descaling agent, a bathroom cleaner, and a toilet bowl cleaner, or
a disinfectant or sanitary detergent for hard surfaces, selected from the group consisting of a floor cleaner, a glass cleaner, a kitchen cleaner, a bathroom cleaner, a sanitary cleaner, a toilet bowl cleaner, and a furniture cleaner.

5. The process according to claim 2 , wherein the formulation is essentially free of enzyme, iodine and iodide,
and is essentially free of elemental halogen, halogen oxides and halogen hydroxides.

6. The process according to claim 2 , wherein the weight ratio of the sulfonic acid of formula (I) to the carboxylic acid is from the range 0.01 to 20.0;
and wherein the formulation has a pH within the range from 0 to 4.0.

7. The process according to claim 2 , wherein the formulation further comprises
(c) a chloro benzene derivative, which is of the formula (II)

wherein
X is O, S or —CH2-
Y is Cl or Br,
Z is SO2H, NO2 or C1 to C4 alkyl,
k is 0 or 1,
l is 0 or 1,
m is 0, 1, 2, or 3,
n is 0, 1, 2, or 3,
o is 0 or 1,
at least one of n and m is greater than zero, and
at least one Y group is Cl,
where the chloro benzene derivative (c) is comprised in an amount from 0.01 to 10.0 wt.-%,
and/or
(d) a surfactant selected from anionic, cationic, nonionic and amphoteric surfactants, where the surfactant (d) is comprised in an amount from 0.1 to 40 wt.-% besides 50 to 99.8 wt.-% of water,
where all percentages are relative to the total weight of the formulation.

8. A process for achieving an antimicrobial effect, on a hard surface, the process comprising:
contacting said hard surface with a liquid formulation of
(a) 0.1 to 5.0 wt. % based on the total formulation of a sulfonic acid of formula (I)

wherein R is selected from the group consisting of methyl and ethyl; and
(b) 0.05 to 20 wt. % based on the total formulation of at least one carboxylic acid selected from the group consisting of formic acid, acetic acid, propanoic acid, oxalic acid lactic acid, citric acid, tartaric, mandelic acid, benzoic acid, salicylic acid, glutaric acid, sorbic acid, and succinic acid,
in the presence of
(c) a chloro benzene derivative
and/or
(d) at least one surfactant.

9. A formulation comprising
(a) 0.1 to 5.0 wt. % based on the total formulation of a sulfonic acid of formula (I)

wherein R is selected from the group consisting of methyl and ethyl;
(b) 0.05 to 20 wt. % based on the total formulation of at least one carboxylic acid selected from the group consisting of formic acid, acetic acid, propanoic acid, oxalic acid lactic acid, citric acid, tartaric, mandelic acid, benzoic acid, salicylic acid, glutaric acid, sorbic acid, and succinic acid; and
(c) a chloro benzene derivative.

10. A formulation comprising
(a) 0.1 to 5.0 wt. % based on the total formulation of a sulfonic acid of formula (I)

wherein R is selected from the group consisting of methyl and ethyl;
(b) 0.05 to 20 wt. % based on the total formulation of at least one carboxylic acid selected from the group consisting of formic acid, acetic acid, propanoic acid, oxalic acid lactic acid, citric acid, tartaric, mandelic acid, benzoic acid, salicylic acid, glutaric acid, sorbic acid, and succinic acid;
(c) a surfactant;
provided that the formulation is essentially free of enzymes; and provided that the formulation is essentially free of oxidants and is essentially free of iodine and iodide.

11. The formulation according to claim 10 , further comprising
(d) a chloro benzene derivative of the formula (II)

wherein
X is O, S or —CH2-
Y is Cl or Br,
Z is SO2H, NO2 or C1 to C4 alkyl,
k is 0 or 1,
l is 0 or 1,
m is 0, 1, 2, or 3,
n is 0, 1, 2, or 3,
o is 0 or 1,
at least one of n and m is greater than zero, and
at least one Y group is Cl,
and
wherein the surfactant is selected from anionic, cationic, nonionic and amphoteric surfactants.

12. The formulation according to claim 10 , wherein said formulation is an aqueous formulation having, a pH in the range of 0 to 4.0 contains further comprises at least 50 wt.-%, of water.

13. The formulation according to claim 10 , wherein the weight ratio of the sulfonic acid of formula (I) to the carboxylic acid is

Assignees

• Basf Se

Inventors

• Hazenkamp Menno
• Bönemann Gabriele

Classifications

• C11D3/3409

  Alkyl -, alkenyl -, cycloalkyl - or terpene sulfates or sulfonates · CPC title

• C11D3/24

  containing halogen {(C11D3/162, C11D3/164, C11D3/166, C11D3/168 take precedence)} · CPC title

• A01N41/04 Primary

  Sulfonic acids; Derivatives thereof · CPC title

• A01N37/02

  Saturated carboxylic acids or thio analogues thereof; Derivatives thereof · CPC title

• C11D3/48

  Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions · CPC title