Antimicrobial mixture containing 4-(3-ethoxy-4-hydroxyphenyl)butan-2-one and an arginate compound, and cosmetic composition containing same
AssigneeL'oreal
InventorsFlorence Menard-Szczebara, Sylvie Cupferman
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Abstract
The invention relates to an antimicrobial mixture containing 4-(3-ethoxy-4-hydroxy-phenyl)butan-2-one and ethyl N-lauroyl arginate hydrochloride, and also to a cosmetic composition containing such a mixture. Use in caring for, making up and cleansing keratin materials.
Claims11
A synergistic antimicrobial mixture comprising 4-(3-ethoxy-4-hydroxyphenyl)butan-2-one and ethyl N-lauroyl arginate hydrochloride in synergistically effective amounts such that the 4-(3-ethoxy-4-hydroxyphenyl)butan-2-one/ethyl N-lauroyl arginate hydrochloride weight ratio ranges from 10 to 1000 and results in synergistic antimicrobial activity due to only the 4-(3-ethoxy-4-hydroxyphenyl)butan-2-one and ethyl N-lauroyl arginate hydrochloride;
- and wherein the mixture has a 4-(3-ethoxy-4-hydroxyphenyl)butan-2-one/ethyl N-lauroyl arginate hydrochloride weight ratio ranging from 500 to 1000, and has antimicrobial activity on gram-positive bacteria;
- or wherein the mixture has a 4-(3-ethoxy-4-hydroxyphenyl)butan-2-one/ethyl N-lauroyl arginate hydrochloride weight ratio ranging from 10 to 40, has antimicrobial activity on yeasts;
- or wherein the mixture has a 4-(3-ethoxy-4-hydroxyphenyl)butan-2-one/ethyl N-lauroyl arginate hydrochloride weight ratio ranging from 50 to 400 , and has antimicrobial activity on gram-negative bacteria.
Dependencies are inferred from the claim text.