Methyl ethyl hydroxyethyl cellulose for personal care applications
AssigneeAkzo Nobel Chemicals International B.V.
InventorsAnthony John Adamo, Jaime Dion Hamm, Mojahedul Islam, Karen Lee White, Samuel Anthony Vona, Jr.
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Abstract
A thickening system for personal care formulations including methyl ethyl hydroxyethyl cellulose provides efficient thickening power in applications areas such as shampoo and styling gels. In addition to providing thickening, the methyl ethyl hydroxyethyl cellulose derived polymers also provide foam stability to shampoos and improved high humidity curl retention to hair gel compositions.
Claims23
A personal care formulation comprising:
- methyl ethyl hydroxyethyl cellulose having a methyl DS to ethyl DS ratio of from about 1 to about 6.5;
- and
- at least one cosmetically acceptable ingredient,
- wherein the weight average molecular weight of the methyl ethyl hydroxyethyl cellulose is from about 100,000 to about 3,000,000 Da.
A personal care formulation comprising:
- methyl ethyl hydroxyethyl cellulose having a methyl DS to ethyl DS ratio of from about 1 to about 6.5;
- and
- at least one cosmetically acceptable ingredient,
- wherein the weight average molecular weight of the methyl ethyl hydroxyethyl cellulose is about 1,000,000 Da or greater.
A personal care formulation comprising:
- methyl ethyl hydroxyethyl cellulose having a methyl DS to ethyl DS ratio of from about 1 to about 6.5;
- and
- at least one cosmetically acceptable ingredient,
- wherein the methyl ethyl hydroxyethyl cellulose further contains a cationic substituent.
A hair gel comprising a personal care formulation comprising methyl ethyl hydroxyethyl cellulose having a methyl DS to ethyl DS ratio of from about 1 to about 6.5;
- and at least one cosmetically acceptable ingredient and further comprising a styling polymer.
A method of thickening a personal care composition comprising adding a methyl ethyl hydroxyethyl cellulose having a methyl DS to ethyl DS ratio of from 1 to 6.5 wherein the composition further comprises at least one cosmetically acceptable ingredient and wherein the weight average molecular weight of the methyl ethyl hydroxyethyl cellulose is from 100,000 to 3,000,000 Da.
A method of thickening a personal care composition comprising adding a methyl ethyl hydroxyethyl cellulose having a methyl DS to ethyl DS ratio of from 1 to 6.5 wherein the composition further comprises at least one cosmetically acceptable ingredient, and wherein the weight average molecular weight of the methyl ethyl hydroxyethyl cellulose is 1,000,000 Da or greater.
Dependencies are inferred from the claim text.