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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 12552745 B1

PDFFull Text
Date of Patent:
Feb. 17, 2026

Filed:

May. 25, 2021

Compound for optical materials, curable composition, cured body, and optical article

Applicant:

Tokuyama Corporation, Shunan, JP;

Inventors:

Takao Noguchi, Shunan, JP;

Katsuhiro Mori, Shunan, JP;

Junji Momoda, Shunan, JP;

Assignee:

TOKUYAMA CORPORATION, Shunan, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Michael L Leonard

Int. Cl.
CPC ...
C07C 323/52 (2006.01); C07C 321/04 (2006.01); C08G 18/38 (2006.01); C08G 65/334 (2006.01); C08J 7/04 (2020.01); C08K 5/00 (2006.01); C08L 75/08 (2006.01); C09D 175/08 (2006.01); C09J 175/08 (2006.01); C09K 9/02 (2006.01); C08G 18/24 (2006.01); C08G 18/48 (2006.01); G02B 5/23 (2006.01); G02C 7/10 (2006.01);
U.S. Cl.
CPC ...
C07C 323/52 (2013.01); C07C 321/04 (2013.01); C08G 18/3868 (2013.01); C08G 65/3344 (2013.01); C08J 7/04 (2013.01); C08K 5/0041 (2013.01); C08L 75/08 (2013.01); C09D 175/08 (2013.01); C09J 175/08 (2013.01); C09K 9/02 (2013.01); C08G 18/246 (2013.01); C08G 18/3876 (2013.01); C08G 18/4829 (2013.01); C08J 2375/08 (2013.01); C08J 2475/08 (2013.01); C09K 2211/1018 (2013.01); G02B 5/23 (2013.01); G02C 7/10 (2013.01);
Abstract

The present invention provides a novel compound for optical materials, and a curable composition, a cured body and an optical article containing the compound for optical materials. According to an embodiment, there is provided a compound for optical materials represented by Formula (Ia) below: In Formula (Ia), Xand Xare each NH, S, or O. Ris a 1- to 30-valent organic residue. Ris a group composed of a polymer having a repeating unit selected from the group consisting of —(CH)O—, —(CHCHO)—, —(CH(CH)CHO)—, —(CHCH(CH)O)—, —(C(═O)—CHCHCHCHCHO)—, —(C(═O)—O—CHCHCHCHCHO)—, and (C(═O)—O—CHCHCHCHCHCHO)—, a random copolymer having at least two repeating units selected from the group, or a block copolymer having at least two repeating units selected from the group.

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