Title:
LIGHT-COLORED CATECHOL LIGNOSULFONATE SUNSCREEN MICROCAPSULE, AND PREPARATION THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/006012
Kind Code:
A1
Abstract:
Disclosed in the present invention are a light-colored catechol lignosulfonate sunscreen microcapsule, and a preparation therefor and the use thereof. According to the present invention, lignosulfonate is modified by using a vulcanization method to prepare catechol lignosulfonate, and the catechol lignosulfonate, a sunscreen agent and a surfactant are then subjected to ultrasonic cavitation to prepare a catechol lignosulfonate/chemical sunscreen agent microcapsule emulsion. The preparation process of the lignin/chemical sunscreen agent microcapsule of the present invention is environmentally friendly, has low costs and an excellent ultraviolet absorption performance, has a lighter color compared to other lignin-based sunscreen agents, and has a good biological adhesion and penetration resistance, which solves the problems of poor water resistance, greater pollution caused by the preparation process, easy penetration into the skin to harm the human body, etc. of conventional sunscreen agents.
Inventors:
QIAN YONG (CN)
QIU XUEQING (CN)
YANG DONGJIE (CN)
LOU HONGMING (CN)
OUYANG XINPING (CN)
QIU XUEQING (CN)
YANG DONGJIE (CN)
LOU HONGMING (CN)
OUYANG XINPING (CN)
Application Number:
PCT/CN2022/108472
Publication Date:
February 02, 2023
Filing Date:
July 28, 2022
Export Citation:
Assignee:
UNIV SOUTH CHINA TECH (CN)
International Classes:
A61K8/72; A61K8/11; A61K8/37; A61P17/04; C08H7/00
Foreign References:
| CN113679630A | 2021-11-23 | |||
| CN106852724A | 2017-06-16 | |||
| CN111228141A | 2020-06-05 |
Other References:
"Master Thesis South China University of Technology", vol. 29, 15 December 2018, SOUTH CHINA UNIVERSITY OF TECHNOLOGY, CN, article LI YING: "Construction of Chemical Sunscreen/Lignin Microcapsules and Their Applied Fundamental Research", pages: 1 - 80, XP093029489
"Master Thesis South China University of Technology", 15 February 2021, SOUTH CHINA UNIVERSITY OF TECHNOLOGY, CN, article ZHOU YIJIE: "Preparation and Application of Lignin-based Bionic Adhesive Materials Based on Catechol Structure", pages: 1 - 86, XP093029498
"Master Thesis South China University of Technology", 15 May 2021, SOUTH CHINA UNIVERSITY OF TECHNOLOGY, CN, article WU YING: "Broad Spectrum Modification and Microstructure Control of Lignin Natural Polymer UV Protective Agent", pages: 1 - 158, XP093029507
LI JIONGJIONG, ZHANG JIZHI, ZHANG SHIFENG, GAO QIANG, LI JIANZHANG, ZHANG WEI: "Fast Curing Bio-Based Phenolic Resins via Lignin Demethylated under Mild Reaction Condition", POLYMERS, vol. 9, no. 12, pages 428, XP093029511, DOI: 10.3390/polym9090428
"Master Thesis South China University of Technology", 15 February 2021, SOUTH CHINA UNIVERSITY OF TECHNOLOGY, CN, article ZHOU YIJIE: "Preparation and Application of Lignin-based Bionic Adhesive Materials Based on Catechol Structure", pages: 1 - 86, XP093029498
"Master Thesis South China University of Technology", 15 May 2021, SOUTH CHINA UNIVERSITY OF TECHNOLOGY, CN, article WU YING: "Broad Spectrum Modification and Microstructure Control of Lignin Natural Polymer UV Protective Agent", pages: 1 - 158, XP093029507
LI JIONGJIONG, ZHANG JIZHI, ZHANG SHIFENG, GAO QIANG, LI JIANZHANG, ZHANG WEI: "Fast Curing Bio-Based Phenolic Resins via Lignin Demethylated under Mild Reaction Condition", POLYMERS, vol. 9, no. 12, pages 428, XP093029511, DOI: 10.3390/polym9090428
Attorney, Agent or Firm:
GUANGZHOU HUAXUE INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
Download PDF:
Previous Patent: WALLPAPER GENERATION METHOD AND APPARATUS AND ELECTRONIC DEVICE
Next Patent: NOVEL PARP7 INHIBITOR AND USE THEREOF
Next Patent: NOVEL PARP7 INHIBITOR AND USE THEREOF