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US 4,597,975 AGranted
Iodine surface active compositions
OwnerFred E. Woodward, Alice P. Hudsoninventors
Life of this patent
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Abstract
Iodine-containing surface active compositions, useful for cleansing and degermining skin, possessing high lather, good emolliency, mildness, and a pleasant afterfeel; and also iodine-containing compositions useful for cleaning and degerming hard surfaces, possessing good detergency and long lasting biocidal activity, contain certain surface active amine oxides and iodine in the form of an amine oxide-triiodide undissociated salt.
Claims18
A stable aqueous biocidal solution comprising
- (a) an undissociated and by itself insoluble protonated amine oxide-triiodide salt of the structure ##STR9## (b) a protonated amine oxide salt of the structure ##STR10## (c) an amine oxide of the structure ##STR11## (d) a water soluble acid of the structure HY (e) one or more substances chosen from the group consisting of
- (1) surface active phosphate esters
- (2) nonionic surfactants
- (3) water soluble solvent alcohols
- wherein R.sub.1 is alkyl containing about 10 to 18 carbon atoms and no unsaturation;
- R.sub.2 and R.sub.3 are methyl;
- Y is a radical selected from the group consisting of phosphate and phosphate esters, chloride, bromide, lactate, citrate, malate, glycolate, formate, oxalate, tartrate, and sulfate;
- and X is a radical selected from the group consisting of iodide and Y;
- the molar ratio of (a) to (b)+(c) being less than about 0.5 to 1, the molar ratio of (b) to (c) being at least about 2 to 1;
- (d) being present at a level sufficient to effect a pH of about 4.3 or lower;
- and (b)+(c) or said group substance (e), or (b)+(c) and said group substance (e) taken together being present in an amount at least sufficient to effect a transparent solution;
- said solution containing no molecular iodine as determined spectrophotometrically;
- said biocidal solution resulting from mixing a water solution of from about 2 to 67 molar equivalents of one or more amine oxides of structure (c) with one molar equivalent of iodine, acid (d) in sufficient quantity to lower the pH to about 4.3 or lower, and sufficient said group substance (e) to effect a transparent solution.
10 more elements
A stable aqueous biocidal solution comprising
- (a) an undissociated and by itself insoluble protonated amine oxide-trihalide salt of the structure ##STR13## (b) a protonated amine oxide salt of the structure ##STR14## (c) hydrochloric acid wherein R.sub.1 is alkyl containing about 10 to 18 carbon atoms and no unsaturation;
- R.sub.2 and R.sub.3 are methyl;
- the molar ratio of (a) to (b) being between about 0.2 to 1 and 0.01 to 1;
- and the molar ratio of (c) to (a)+(b) being at least about 1 to 1;
- said solution containing no molecular iodine as determined spectrophotometrically;
- said biocidal solution resulting from mixing a water solution of from about 6 to about 100 molar equivalents of one or more amine oxides of the structure ##STR15## wherein R.sub.1, R.sub.2, and R.sub.3 are described above;
- with one molar equivalent of iodine and at least one molar equivalent of hydrochloric acid (c) per molar equivalent of amine oxide.
4 more elements
Dependencies are inferred from the claim text.