N-heptyl-glyceryl ether and synergistically active preservatives
A composition contains n-heptyl-glyceryl ether and at least one further carefully chosen and synergistically active preservative.
1 . A composition, comprising:
A) n-heptyl-glyceryl ether, and
B) at least one selected from the group consisting of
p-anisic acid, benzoic acid, sorbic acid, lactic acid, and salts of any of the before mentioned acids,
and phenylpropanol,
and
wherein the composition has a pH in the range of 4.0 to 8.5.
2 . The composition according to claim 1 , wherein component A) and component B) are comprised in a weight ratio of from 99:1 to 1:99.
3 . The composition according to claim 1 , wherein component A) is comprised in an amount of from of from 0.005 wt.-% to 99.0 wt.-%, wherein the weight percentages refer to a total composition.
4 . The composition according to claim 1 , wherein component B) is comprised in an amount of from 0.005 wt.-% to 99.0 wt.-%, wherein the weight percentages refer to a total composition.
5 . The composition according to claim 1 , wherein the composition comprises
C) at least one selected from the group consisting of deodorant and antiperspirant active ingredients.
6 . The composition according to claim 1 , wherein the composition comprises
D) at least one antioxidant.
7 . A formulation, comprising the composition according to claim 1 , wherein the formulation is selected from the group consisting of cleaning formulations, defoamers, coating formulations, and cosmetic formulations.
8 . The formulation according to claim 7 , wherein
component A) is comprised in an amount of from of from 0.005 wt.-% to 10.0 wt.-%, and
component B) is comprised in an amount of from 0.005 wt.-% to 30.0 wt.-%, and
optionally, component C), which is at least one selected from the group consisting of deodorant and antiperspirant active ingredients, is comprised in an amount of from 0.005 wt.-% to 25.0 wt.-%,
wherein the weight percentages refer to a total formulation.
9 . A method for preserving a formulation, the method comprising:
adding the following components to the formulation
A) n-heptyl-glyceryl ether, and
B) at least one selected from the group consisting of
p-anisic acid, benzoic acid, sorbic acid, lactic acid and salts of any of the before mentioned acids,
and phenylpropanol.
10 . The method according to claim 9 , wherein the preserving comprises growth reduction of a micro-organism.
11 . A preservative, comprising the composition according to claim 1 .
12 . A method for increasing critical micelle concentration of n-heptyl-glyceryl ether in water, the method comprising:
adding to the water and the n-heptyl-glyceryl ether, at least one selected from the group consisting of
B) p-anisic acid and salts thereof.
13 . The composition according to claim 6 , wherein the at least one antioxidant is tocopherol or naringenin.
14 . The method according to claim 9 , wherein the formulation is selected from the group consisting of cleaning formulations, defoamers, coating formulations, and cosmetic formulations.
15 . The method according to claim 10 , wherein the micro-organism is selected from the group consisting of yeast, mould, and bacteria.
16 . The method according to claim 10 , wherein the micro-organism is A. brasiliensis, S. aureus , or C. albicans.
17 . The preservative according to claim 11 , wherein the preservative is a preservative against a micro-organism selected from the group consisting of yeast, mould, and bacteria.
18 . The preservative according to claim 17 , wherein the preservative is a preservative against bacteria comprising A. brasiliensis, S. aureus , or C. albicans.
19 . The composition according to claim 1 , which has synergistic efficiency in antimicrobial activity.
20 . The composition according to claim 19 , wherein the antimicrobial activity is against is A. brasiliensis, S. aureus , or C. albicans.