Aqueous alcoholic microbicidal compositions comprising zinc ions
Compositions which impart a microbicidal benefit to treated surfaces which compositions comprise (or in certain preferred embodiments may consist essentially of, or may consist of): a zinc ion source material which releases zinc ions into the treatment composition, preferably a source of Zn ++ ions; preferably at least from about 20% wt. of at least one alcohol, which is preferably a lower alkyl monohydric alcohol and water, optionally one or more further surfactants, further optionally one or more constituents which impart one or more advantageous technical or aesthetic benefits to the compositions, including one or more detersive surfactants; and water, wherein the composition has a pH of at least 4, preferably at least 5, wherein the surface treatment compositions, exhibit a microbicidal or germicidal or antimicrobial effect on treated inanimate surfaces, characterized in exhibiting a microbicidal benefit when tested against one or more challenge microorganisms, according to one or more of the following standardized test protocols: ASTM E1052 Standard Test Method for Efficacy of Antimicrobial Agents against Viruses in Suspension, or ASTM E1053 Standard Test Method to Assess Virucidal Activity of Chemicals Intended for Disinfection of Inanimate, Nonporous Environmental Surfaces, or European Standard Surface Test, EN13697, or AOAC Germicidal Spray Products as Disinfectant Test Method, AOAC Index, 17 th Ed. (2000), preferably against poliovirus type 1 (Sabin) (“PV1”).
1. A transparent liquid, inanimate surface treatment composition which imparts a virucidal benefit to treated surfaces which composition comprises:
0.001 -2.5% wt. of a zinc ion source material which releases zinc ions into the treatment composition;
at least 35% wt. of at least one lower alkyl aliphatic monohydric alcohol, and wherein ethanol is the predominant alcohol present in the lower alkyl aliphatic monohydric alcohol constituent;
water;
optionally, one or more further constituents which impart one or more advantageous technical or aesthetic benefits to the compositions;
wherein the composition has a pH of at least 6.07,
wherein any quaternary ammonium compounds which impart a germicidal benefit are not present in the composition; and
wherein the surface treatment compositions are characterized in exhibiting at least a 2 log 10 reduction of poliovirus type 1 (Sabin) when tested according to one or more of the following standardized test protocols: ASTM E1052 Standard Test Method for Efficacy of Antimicrobial Agents against Viruses in Suspension, or ASTM E1053 Standard Test Method to Assess Virucidal Activity of Chemicals Intended for Disinfection of Inanimate, Nonporous Environmental Surfaces.
2. A transparent liquid, inanimate surface treatment composition which imparts a virucidal benefit to such treated surfaces which compositions comprises:
0.001 -2.5% wt. of a zinc ion source material which releases zinc ions into the treatment composition;
in excess of 0% wt., and up to but excluding 20% wt of at least one lower alkyl aliphatic monohydric alcohol, and wherein ethanol is the predominant alcohol present in the lower alkyl aliphatic monohydric alcohol constituent;
water;
optionally, one or more further constituents which impart one or more advantageous technical or aesthetic benefits to the compositions;
wherein the composition has a pH of at least 5,
wherein any quaternary ammonium compounds which impart a germicidal benefit are not present in the composition; and
wherein the surface treatment compositions are characterized in exhibiting a at least a 2 log 10 reduction of poliovirus type 1 (Sabin), when tested according to one or more of the following standardized test protocols: ASTM E1052 Standard Test Method for Efficacy of Antimicrobial Agents against Viruses in Suspension, or ASTM E1053 Standard Test Method to Assess Virucidal Activity of Chemicals Intended for Disinfection of Inanimate, Nonporous Environmental Surfaces.
3. A composition according to claim 2 , wherein the composition exhibits a pH of at least 6.07.
4. A composition according to claim 1 wherein ethanol is the sole alcohol present in the lower aliphatic monohydric alcohol constituent.
5. A composition according to claim 1 , wherein the composition concurrently satisfies at least one of the following Conditions A, B, C, D, E, F, G, H, I, J, K, L, M, and N:
log 10 reduction of
poliovirus type 1
(Sabin) (“PV1”)
% wt. of at least
when tested
one lower
according to the
pH or pH
alkyl aliphatic
standardized test
Condition
range
monohydric alcohol
protocol: ASTM E1052
A
>8.5
> 40 and < 45.2
at least 1.5
B
> 8.5 to <9
> 40 and < 45.2
at least 2.5
C
> 9 to <9.5
> 35 and < 70.2
at least 0.5
D
> 9.5 to <10
> 35 and < 50
at least 3.3
E
> 10 to <10.5
> 40 and < 50
at least 5.0
F
> 10.5 to <11
> 35 and < 50
at least 5.0
G
> 11
> 35 and < 50
at least 5.0
H
>8.5
> 40 and < 45.2
—
I
> 8.5 to <9
> 40 and < 45.2
at least 1.67
J
> 9 to <9.5
> 35 and < 70.2
at least 2
K
> 9.5 to <10
> 35 and < 50
at least 1.67
L
> 10 to <10.5
> 40 and < 50
at least 3.3
M
> 10.5 to <11
> 35 and < 50
at least 3.5
N
> 11
> 35 and < 50
at least 4.27.
6. A composition according to claim 1 , wherein the composition concurrently satisfies at least one of the following Conditions O, P, Q, R, and S:
% wt. of at
log 10 reduction of poliovirus
least one
type 1 (Sabin) (“PV1”)
lower alkyl
when tested according
aliphatic
to the standardized
monohydric
test protocol:
Condition
alcohol
pH or pH range
ASTM E1052
O
> 35 and <40
> 9.03 and < 10.76
at least 2.0
P
> 40 and <45
> 7.92 and < 11.51
at least 2.0
Q
> 45 and <50
> 6.07 and < 11.5
at least 1.5
R
> 50
> 9.03 and < 9.2
at least 4.17
S
> 35 and <40
> 9.03 and < 10.76
—.
7. A method of controlling the incidence of undesired microorganisms on an inanimate surface, the method comprising the step of: contacting the inanimate surface which is in need of treatment or upon which the presence of one or more undesirable microorganisms are suspected or are known to be present, with an effective amount of a composition according to claim 1 , to provide a virucidal benefit to the contacted surface.
8. A liquid, inanimate surface treatment composition according to claim 1 , wherein the zinc ion source material which releases Zn ++ ions into the treatment composition.
9. A liquid, inanimate surface treatment composition according to claim 2 , wherein the zinc ion source material which releases Zn ++ ions into the treatment composition.
10. A liquid, inanimate surface treatment composition according to claim 1 , wherein the composition contains:
at least about 35% wt. and up to but less than 42.5% wt. of the lower alkyl mononhydric alcohol constituent; and,
has a pH of about 9 to about 11.5.
11. A liquid, inanimate surface treatment composition according to claim 1 , wherein the composition contains:
42.5% wt. and up to about 45% wt. of the lower alkyl mononhydric alcohol constituent; and,
has a pH of about 8 to about 11.5.