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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.:

US 12649818 B1

PDFFull Text
Date of Patent:
Jun. 09, 2026

Filed:

Nov. 30, 2021

Xylylene diisocyanate composition and optical composition comprising same

Applicant:

SK Pucore Co., Ltd., Ulsan, KR;

Inventors:

Jae Young Pai, Gyeonggi-do, KR;

Jung Hwan Myung, Gyeonggi-do, KR;

Hyuk Hee Han, Gyeonggi-do, KR;

Kyeong Hwan You, Gyeonggi-do, KR;

Jeong Moo Kim, Gyeonggi-do, KR;

Eui Jun Choi, Gyeonggi-do, KR;

Jung Hwan Shin, Gyeonggi-do, KR;

Assignee:

SK PUCORE CO., LTD., Ulsan, KR;

Attorney:

IP & T GROUP LLP

Primary Examiner:

Rabon A Sergent

Int. Cl.
CPC ...
C08G 18/76 (2006.01); C07C 263/20 (2006.01); C07C 265/14 (2006.01); C08G 18/10 (2006.01); C08G 18/38 (2006.01); C08G 18/64 (2006.01); C08G 18/70 (2006.01); C08G 18/71 (2006.01); G02B 1/04 (2006.01);
U.S. Cl.
CPC ...
C08G 18/7642 (2013.01); C07C 263/20 (2013.01); C07C 265/14 (2013.01); C08G 18/10 (2013.01); C08G 18/38 (2013.01); C08G 18/3855 (2013.01); C08G 18/3876 (2013.01); C08G 18/64 (2013.01); C08G 18/6453 (2013.01); C08G 18/70 (2013.01); C08G 18/71 (2013.01); C08G 18/712 (2013.01); C08G 18/76 (2013.01); G02B 1/041 (2013.01);
Abstract

A xylylene diisocyanate composition according to exemplary embodiments includes xylylene diisocyanate (XDI) and chloromethylbenzyl isocyanate (CBI), and may satisfy a predetermined relationship between an acidity and a content of CBI. Thereby, an optical lens having a high transmittance and improved optical uniformity can be manufactured by controlling a polymerization reaction rate.

Find Patent Forward Citations

Pai, Jae. (2026). Xylylene diisocyanate composition and optical composition comprising same (U.S. Patent No. 12649818). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12649818

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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