High internal phase emulsion stabilized by low content of surfactant and preparation method thereof

US11879086B2 · kind B2 · utility

Assignee

• CHINA RESEARCH INSTITUTE OF DAILY CHEMISTRY CO., LTD · CN

Inventors

• Xiumei Tai · Taiyuan, CN
• Qian Chen · San Jose, US
• Yanyun Bai · Hohhot, CN
• Zeyun Yang · Taiyuan, CN
• Tianzhuang Wang · Taiyuan, CN
• Yanjun Ma · 红钢城街道, CN

Key dates

• Filing date: Aug 13, 2021
• Grant date: Jan 23, 2024
• Expiry date: Nov 11, 2041

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K23/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A high internal phase emulsion stabilized by a low content of surfactant and its preparation method thereof are provided. An oil ethoxylate is added to a vegetable oil, and the resulting mixture is uniformly mixed under a low-speed stirring at room temperature. Water is added dropwise to the mixture of surfactant and vegetable oil under stirring, and a homogenization is performed on the obtained dispersed system by a high-shear dispersion emulsification homogenizer to obtain the high internal phase emulsion stabilized by oil ethoxylate. The preparation method requires a low content of surfactant, mild preparation conditions and simple operations. When the oil-phase volume fraction is 83 vol %, the minimum mass fraction of the oil ethoxylate to stabilize the high internal phase emulsion is 0.6 wt %, and the prepared oil-in-water type high internal phase emulsion has excellent stability and shows bright color, delicate odor, hydra feel and being easy to apply.