Shampoo compositions and suspending agent therefor
AssigneeHelene Curtis, Inc.
InventorsTeresa Jolanta Dowell, Gerald Patrick Newell, Eugene Zeffren
Life of this patent
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Abstract
A hair shampoo composition comprising a cleansing surfactant; a water-insoluble hair treating compound, like a hair conditioner or an antidandruff agent; a suspending agent comprising an amine including at least one long carbon chain and a suitable acid; and a suitable carrier, and a method of treating hair are disclosed. The shampoo compositions effectively suspend the water-insoluble hair-treating compound, effectively cleanse the hair and effectively deliver the water-insoluble hair-treating compound to the hair or scalp.
Claims13
A suspending agent for suspending a water-insoluble compound in an aqueous composition comprising:
- (a) about 1% to about 10% by weight of the aqueous composition of an amine having the general structural formula ##STR7## wherein R.sub.1 is an alkyl group including at least 16 carbon atoms;
- R.sub.2 is selected from the group consisting of hydrogen, an alkyl group having one to about 22 carbon atoms, benzyl and phenyl;
- and R.sub.3 is selected from the group consisting of hydrogen, methyl, benzyl and phenyl, wherein said amine has a water solubility of 0.5 grams or less per 100 milliliters of water, and wherein said amine is a solid compound at room temperature;
- and
- (b) a sufficient amount of an acid such that essentially no solid particles of the amine are present in the composition, said acid selected from the group consisting of an inorganic mineral acid, an aliphatic carboxylic acid including up to about 22 carbon atoms, an aromatic carboxylic acid, and combinations thereof.
A suspending agent for suspending a water-insoluble compound in an aqueous composition comprising:
- (a) about 1% to about 10% by weight of the aqueous composition of an amine having the general structural formula ##STR8## wherein R.sub.4 is an alkyl group having at least 13 carbon atoms;
- R.sub.5 is an alkylene moiety having one to four carbon atoms;
- and R.sub.6 and R.sub.7 are, independently, an alkyl group having one to four carbon atoms, wherein said amine has a water solubility of 0.5 grams or less per 100 milliliters of water, and wherein said amine is a solid compound at room temperature;
- and
- (b) a sufficient amount of an acid such that essentially no solid particles of the amine are present in the composition, said acid selected from the group consisting of an inorganic mineral acid, an aliphatic carboxylic acid including up to about 22 carbon atoms, an aromatic carboxlic acid, and combinations thereof.
A suspending agent for suspending a water-insoluble compound in an aqueous composition comprising:
- (a) about 1% to about 10% by weight of the composition of an amine having the general structural formula ##STR9## wherein R.sub.1 is an alkyl group including at least 16 carbon atoms;
- R.sub.2 is selected from the group consisting of hydrogen, an alkyl group having one to about 22 carbon atoms, benzyl and phenyl;
- R.sub.5 is an alkylene moiety having one to four carbon atoms;
- and R.sub.8 and R.sub.9 are, independently, hydrogen or an alkyl group having 1 to 4 carbon atoms, wherein said amine has a water solubility of 0.5 grams or less per 100 milliliters of water, and wherein said amine is a solid compound at room temperature;
- and
- (b) a sufficient amount of an acid such that essentially no solid particles of the amine are present in the composition, said acid selected from the group consisting of an inorganic mineral acid, an aliphatic carboxylic acid including up to about 22 carbon atoms, an aromatic carboxylic acid, and combinations thereof.
Dependencies are inferred from the claim text.