The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 22, 2022
Filed:
Jul. 06, 2017
Skc Co., Ltd., Gyeonggi-do, KR;
Seung Mo Hong, Incheon, KR;
Hyeon Myeong Seo, Ulsan, KR;
Jongmin Shim, Gyeonggi-do, KR;
Sang Mook Kim, Ulsan, KR;
Jung Hwan Myung, Seoul, KR;
Junghwan Shin, Gyeonggi-do, KR;
SKC CO., LTD., Gyeonggi-do, KR;
Abstract
An embodiment relates to an aromatic polythiol compound for optical materials, and the aromatic polythiol compound according to the embodiment contains a phenyl group and a large number of sulfur atoms in its polythiol structure so that a polymerizable composition and an optical material obtained therefrom have excellent optical properties such as high refractive index and low specific gravity, as well as excellent mechanical properties such as low cure shrinkage; thus, they can be advantageously used for producing various plastic optical lenses such as eyeglass lenses and camera lenses.