Processing

Please wait...

Settings

Settings

Goto Application

1. WO2016147196 - CONCENTRATED AND SELF-PRESERVING COMPOSITIONS OF MILD SURFACTANTS FOR TRANSPARENT AND SKIN-PH PERSONAL CARE FORMULATIONS

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

[ EN ]

We claim,

1. A mild surfactant composition comprising;

(i) aqueous blend of O-acyl isethionates of Formula I and monopotassium N-acyl glutamate of Formula II ;


Formula I Formula

wherein, R is selected from C5 to C21 alkyl group, saturated or unsaturated, Ri is selected from H or methyl, X is selected from Na+ or K+ and prepared by the process, comprising steps of

A) reacting more than one equivalence of fatty acid chloride with alkali metal hydroxyalkyl sulphonates to prepare compounds of Formula I,

B) reacting the reaction mass of step (A) (containing the remainder fatty acid chloride) with glutamic acid in the presence of a potassium hydroxide under typical aqueous Schotten Baumann reaction conditions to form compounds of Formula II; wherein,, the molar ratio of O- acyl isethionates of Formula I to N-acyl glutamate of Formula II is in range of 1.0: 1.0 to 1.0: 10.0, and

(ii) 0.5 to 2 % by weight mixture of N-undecylenoyl glycine and yV-capryloyl glycine; wherein, the total solids content of the composition is at least 45 % w/w and the pH of the said aqueous composition is below 6.5.

2. The surfactant composition of claim 1 wherein glutamic acid is selected from L- glutamic acid or D-glutamic acid or mixture thereof.

3. The surfactant composition as claimed in claim 1, wherein the mixture of N- undecylenoyl glycine and N-capryloyl glycine is in the ratio of 1 : 1.

4. The surfactant composition as claimed in claim 1, which is self-preserving.

5. The personal care formulation using the aqueous surfactant composition of claim 1.

6. The transparent, skin-pH personal care formulation using the aqueous surfactant composition of claim 1.

7. The personal care formulation as claimed in claim 5 is selected from shampoo, hand wash, body wash, face wash, shower gel, and baby bubble bath.

8. The surfactant composition as claimed in claim 1 containing other cosmetic benefit agents.