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US 12,478,065 B2Granted
Antimicrobial preservative compositions
AssigneeSharon Laboratories Ltd.
InventorPaul Salama
Life of this patent
Estimating the term…
Abstract
Formulations comprised of: ethylhexylglycerin (EHG), an organic solvent, and a quaternary ammonium are disclosed. Formulations comprising of one or more organic solvents and one or more cationic surfactants are disclosed. Articles comprising the formulations are further disclosed.
Claims14
A concentrate comprising a preservative, wherein:
- (i) the preservative consists of one or more glycol, one or more organic solvent, one or more quaternary ammonium and a counteranion of said one or more quaternary ammonium,
- (ii) said one or more glycol comprises any one of:
- ethylhexylglycerin (EHG), caprylyl glycol, or both;
- (iii) said one or more organic solvent is selected from the group consisting of benzyl alcohol, phenyl ethyl alcohol, phenoxyethanol, 3-phenylpropanol, each being substituted or non-substituted and any mixture thereof;
- (iv) a ratio between the one or more quaternary ammonium and the one or more glycol is from 1:1 to 1:7, by weight, respectively;
- (v) a ratio between the one or more glycol and the one or more organic solvent is from 1:2 and 1:10 by weight, respectively;
- wherein said preservative is a sole preservative agent within said concentrate;
- and
- wherein a preservative effective concentration of said preservative within a liquid or a semi-liquid preparation is between about 0.1-0.5% w/w.
6 more elements
A preservative consisting of a glycol, an organic solvent, one or more quaternary ammonium and a counteranion of said one or more quaternary ammonium, wherein:
- (i) said glycol is ethylhexylglycerin (EHG);
- (ii) said organic solvent is phenoxyethanol;
- (iii) a ratio between the quaternary ammonium and EHG is from 1:1 to 1:7, by weight, respectively;
- (iv) a ratio between EHG and the organic solvent is from 1:2 and 1:10 by weight, respectively;
- wherein said preservative is a sole preservative agent within said concentrate;
- and wherein said a preservative effective concentration of said preservative within a liquid or a semi-liquid preparation is between 0.1-1% w/w.
3 more elements
Dependencies are inferred from the claim text.