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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 12287450 B1

PDFFull Text
Date of Patent:
Apr. 29, 2025

Filed:

Mar. 15, 2024

Functional laminate and functional lens comprising the functional laminate

Applicant:

Tokuyama Corporation, Shunan, JP;

Inventors:

Katsuhiro Mori, Shunan, JP;

Toshimitsu Hiraren, Shunan, JP;

Junji Momoda, Shunan, JP;

Assignee:

TOKUYAMA CORPORATION, Shunan, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Sharrief I Broome

Int. Cl.
CPC ...
G02B 1/04 (2005.12); B32B 7/12 (2005.12); B32B 23/08 (2005.12); B32B 27/08 (2005.12); B32B 27/28 (2005.12); B32B 27/30 (2005.12); B32B 27/34 (2005.12); B32B 27/36 (2005.12); B32B 27/40 (2005.12); G02C 7/02 (2005.12); G02C 7/10 (2005.12); G02C 7/12 (2005.12);
U.S. Cl.
CPC ...
G02B 1/041 (2012.12); B32B 7/12 (2012.12); B32B 23/08 (2012.12); B32B 27/08 (2012.12); B32B 27/283 (2012.12); B32B 27/306 (2012.12); B32B 27/308 (2012.12); B32B 27/34 (2012.12); B32B 27/36 (2012.12); B32B 27/40 (2012.12); G02C 7/02 (2012.12); G02C 7/102 (2012.12); G02C 7/12 (2012.12); B32B 2250/03 (2012.12); B32B 2250/05 (2012.12); B32B 2255/10 (2012.12); B32B 2255/26 (2012.12); B32B 2307/412 (2012.12); B32B 2307/42 (2012.12); B32B 2551/00 (2012.12);
Abstract

A functional lens having a functional laminate (A) including a first optical sheet (Aa), a second optical sheet (Ab) and a functional layer (Ac) existent between these two sheets and having photochromic properties and/or polarizability and a synthetic resin layer (B) existent on at least one of the first optical sheet (Aa) and the second optical sheet (Ab) of the functional laminate (A), and adhesive strength between the first optical sheet (Aa) and/or the second optical sheet (Ab) and the synthetic resin layer (B) is not less than 50 N, wherein the reactive functional group of the surface modified area is an hydroxy group, thiol group, carboxy group, amino group, sulfo group, (thio)isocyanate group, allyl group, (meth)acrylic group, vinyl group, epoxy group, oxetane group or a thioepoxy group.

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