Joan Baptista Urgell Beltran;Joan Seguer Bonaventrua
发明人:
Joan Baptista Urgell Beltran,Joan Seguer Bonaventrua
申请号：
US10484138
公开号：
US08388986B2
申请日:
2001.08.09
申请国别(地区):
US
年份:
2013
代理人:
摘要：
The invention relates to a new use of cationic surfactants derived from the condensation of fatty acids and esterified dibasic amino acids, according to the following formula:where: X− is Br−, Cl−, or HSO4−. R1: is linear alkyl chain from a saturated fatty acid, or hydroxyacid from 8 to 14 atoms of carbon bonded to the α-amino acid group through amidic bond. R2: is a lineal or branched alkyl chain from 1 to 18 carbon atoms or aromatic, and R3: is:and n can be from 0 to 4. This class of compounds turned out to be highly suitable for use as preservatives in cosmetic or dermatological preparations. A particularly suitable compound is the ethyl ester of the lauramide of arginine hydrochloride (LAE).
