US 2026/0275035 A1 · One-Pot Process for Preparing Cold-Processable and Viscosity Building Composition for Personal Cleansing Products

Abstract

Disclosed herein is a one-pot process for preparing a cold-processable and rheology modifying more particularly viscosity-building composition for personal cleansing products. The one-pot process enables to manufacture the viscosity-building composition with higher active content and ease of incorporation into personal cleansing products. The present invention also relates to such viscosity-building composition. The viscosity-building composition of the present invention comprises, fatty acid esters of polyethylene glycol (Formula I) and an anionic surfactant, N-acyl methyl taurate (Formula II). Achieving the desired viscosity at ambient temperature in case of personal care formulations like shampoos, body-washes, creams, etc. saves both energy and time spent on heating and cooling of humungous sized batches (typical commercial batch size of several metric tonnes), resulting in higher productivity and lower cost.

Claims9

Dependent claims

A one-pot process of preparing a cold-processable viscosity-building composition comprising steps of:

a. heating polyethylene glycol with a fatty acid at a temperature of 140 to 150° C. to prepare a fatty acid diester of polyethylene glycol of Formula I,
wherein m=9 to 15 and n=100 to 150;
b. cooling the fatty acid diester of polyethylene glycol obtained in step (a) to a temperature of 90 to 100° C., adding an N-acyl methyl taurate, of Formula II, in powder form and stirring the reaction mixture to obtain a homogeneous mass,
wherein R═C7 to C17 and M+=Na+ or K+;
c. cooling the homogeneous mass to a temperature of 70° C. to 80° C. and pouring onto a double drum flaker to obtain the cold-processable viscosity-building composition in a flake form,
wherein thickness of the flake is maximum 1.0 mm and length of the flake is maximum 10 mm, and
wherein 1% homogeneous dispersion of the flake in water is formed in 15 to 30 minutes of stirring at 25° C.

4 more elements

Dependencies are inferred from the claim text.

One-Pot Process for Preparing Cold-Processable and Viscosity Building Composition for Personal Cleansing Products

Life of this patent

One-Pot Process for Preparing Cold-Processable and Viscosity Building Composition for Personal Cleansing Products

Life of this patent

Abstract

Claims9