Title:
METHOD FOR PREPARING ESTER THIOL COMPOUND AND OPTICAL RESIN CONTAINING SAME
Document Type and Number:
WIPO Patent Application WO/2023/145981
Kind Code:
A1
Abstract:
The present invention relates to a method for preparing an ester thiol compound by reacting a polyalcohol and a mercaptocarboxylic acid and to an optical resin or optical lens obtained therefrom having superior optical properties.
Inventors:
KIM KEUN SIK (KR)
LEE KWANG YOUNG (KR)
LEE KWANG YOUNG (KR)
Application Number:
PCT/KR2022/001284
Publication Date:
August 03, 2023
Filing Date:
January 25, 2022
Export Citation:
Assignee:
KS OPTICAL CO LTD (KR)
International Classes:
C07C323/51; C07C319/20; C08G18/38; G02B1/04
Foreign References:
| KR101935031B1 | 2019-01-03 | |||
| KR102062134B1 | 2020-01-03 | |||
| KR20180006419A | 2018-01-17 |
Other References:
KARIMI BABAK, MIRZAEI HAMID M., MOBARAKI AKBAR, VALI HOJATOLLAH: "Sulfonic acid-functionalized periodic mesoporous organosilicas in esterification and selective acylation reactions", CATALYSIS SCIENCE & TECHNOLOGY, ROYAL SOCIETY OF CHEMISTRY, UK, vol. 5, no. 7, 1 January 2015 (2015-01-01), UK , pages 3624 - 3631, XP093082085, ISSN: 2044-4753, DOI: 10.1039/C5CY00267B
VISCARDI ROSANNA, BARBAROSSA VINCENZO, MAGGI RAIMONDO, PANCRAZZI FRANCESCO: "Effect of acidic MCM-41 mesoporous silica functionalized with sulfonic acid groups catalyst in conversion of methanol to dimethyl ether", ENERGY REPORTS, vol. 6, 1 December 2020 (2020-12-01), pages 49 - 55, XP093082086, ISSN: 2352-4847, DOI: 10.1016/j.egyr.2020.10.042
VISCARDI ROSANNA, BARBAROSSA VINCENZO, MAGGI RAIMONDO, PANCRAZZI FRANCESCO: "Effect of acidic MCM-41 mesoporous silica functionalized with sulfonic acid groups catalyst in conversion of methanol to dimethyl ether", ENERGY REPORTS, vol. 6, 1 December 2020 (2020-12-01), pages 49 - 55, XP093082086, ISSN: 2352-4847, DOI: 10.1016/j.egyr.2020.10.042
Attorney, Agent or Firm:
PARK, Yong-min (KR)
Download PDF:
Previous Patent: SMART ELECTRONIC SCORING SYSTEM FOR TAEKWONDO USING INERTIAL SENSOR
Next Patent: SPIRAL SCREWDRIVER
Next Patent: SPIRAL SCREWDRIVER