Abstract: Optically isotropic, thermodynamically and chemically stable microemulsions of antimicrobials comprising of mixtures of N-undecylenoyl glycine, N-capryloyl glycine and 2-phenoxy ethanol for preservation of personal care products are described herein. They offer a broad spectrum of antimicrobial activity by inhibiting the growth of bacteria as well as fungi that can otherwise flourish in personal care products rendering them unsuitable for the use. The personal care products that can be preserved by these microemulsions of antimicrobials are, gels, serums, solutions, lotions, creams, emulsions, wet wipes and the like, containing water in varying amount.

Abstract: Optically isotropic, thermodynamically and chemically stable microemulsions of antimicrobials comprising of mixtures of N-undecylenoyl glycine, N-capryloyl glycine and 2-phenoxy ethanol for preservation of personal care products are described herein. They offer a broad spectrum of antimicrobial activity by inhibiting the growth of bacteria as well as fungi that can otherwise flourish in personal care products rendering them unsuitable for the use. The personal care products that can be preserved by these microemulsions of antimicrobials are, gels, serums, solutions, lotions, creams, emulsions, wet wipes and the like, containing water in varying amount.

Abstract: A process of producing N-acyl amino acid based surfactants of Formula I, wherein, R is selected from C6 to C22 alkyl group, R1 is selected from H, C1 to C4 alkyl, R2 is selected from all groups on ? carbon of natural amino acids, R3 is selected from COOX, CH2—SO3X, X is selected from Li+, Na+ or K+. The process comprising steps of: A) preparing fatty acid chlorides by halogenating fatty acids with either phosgene or thionyl chloride in the presence of catalytic amount of same or other N-acyl amino acid surfactant of Formula I or anhydrides of same surfactant; and B) reacting fatty acid chloride of step (A) with an amino acid in the presence of a base.

Abstract: A process of producing N-acyl amino acid based surfactants of Formula I, wherein, R is selected from C6 to C22 alkyl group, R1 is selected from H, C1 to C4 alkyl, R2 is selected from all groups on ? carbon of natural amino acids, R3 is selected from COOX, CH2—SO3X, X is selected from Li+, Na+ or K+. The process comprising steps of: A) preparing fatty acid chlorides by halogenating fatty acids with either phosgene or thionyl chloride in the presence of catalytic amount of same or other N-acyl amino acid surfactant of Formula I or anhydrides of same surfactant; and B) reacting fatty acid chloride of step (A) with an amino acid in the presence of a base.