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:
Feb. 07, 2023
Filed:
Jan. 11, 2019
Applicant:
Skc Co., Ltd., Gyeonggi-do, KR;
Inventors:
Junghwan Shin, Gyeonggi-do, KR;
Jung Hwan Myung, Gyeonggi-do, KR;
Jongmin Shim, Gyeonggi-do, KR;
Hyuk Hee Han, Gyeonggi-do, KR;
Assignee:
SKC CO., LTD., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/38 (2006.01); C08G 18/75 (2006.01); C08G 18/76 (2006.01); G02B 1/04 (2006.01); C08G 18/64 (2006.01);
U.S. Cl.
CPC ...
C08G 18/3876 (2013.01); C08G 18/3855 (2013.01); C08G 18/6453 (2013.01); C08G 18/757 (2013.01); C08G 18/7642 (2013.01); G02B 1/041 (2013.01);
Abstract
Embodiments relate to a polythiourethane-based plastic lens. When a polythiourethane-based plastic lens is polymerized according to the embodiment, the types, contents, and the like of the polythiol compounds and the isocyanate compounds are adjusted to control the storage moduli at room temperature and high temperatures, their variations, the energy attenuation (KEL) obtained therefrom, and the glass transition temperature, whereby the polythiourethane-based plastic lens thus obtained is enhanced in impact resistance and thermal resistance.