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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 11697695 B1

PDFFull Text
Date of Patent:
Jul. 11, 2023

Filed:

Jan. 12, 2016

Polymerizable composition and optically anisotropic body using same

Applicant:

Dic Corporation, Tokyo, JP;

Inventors:

Kouichi Endo, Kita-adachi-gun, JP;

Toru Ishii, Kita-adachi-gun, JP;

Yasuhiro Kuwana, Kita-adachi-gun, JP;

Kazuaki Hatsusaka, Kita-adachi-gun, JP;

Mika Yamamoto, Kita-adachi-gun, JP;

Assignee:

DIC CORPORATION, Tokyo, JP;

Attorney:

WHDA, LLP

Primary Examiner:

Chanceity N Robinson

Assistant Examiner:

Anna Malloy

Int. Cl.
CPC ...
C08F 2/42 (2006.01); C09K 19/38 (2006.01); C09K 19/54 (2006.01); C09K 19/20 (2006.01); C09K 19/34 (2006.01); C08F 2/48 (2006.01); C09K 19/32 (2006.01); C08F 20/38 (2006.01); C08F 2/50 (2006.01); G02F 1/13363 (2006.01); G02B 5/30 (2006.01); C09K 19/04 (2006.01); C08F 220/30 (2006.01); C08F 220/36 (2006.01); C08F 220/38 (2006.01); C08F 222/10 (2006.01);
U.S. Cl.
CPC ...
C08F 2/42 (2013.01); C08F 2/48 (2013.01); C08F 2/50 (2013.01); C08F 20/38 (2013.01); C09K 19/2007 (2013.01); C09K 19/322 (2013.01); C09K 19/3497 (2013.01); C09K 19/38 (2013.01); C09K 19/54 (2013.01); G02B 5/30 (2013.01); G02F 1/13363 (2013.01); C08F 220/303 (2020.02); C08F 220/365 (2020.02); C08F 220/387 (2020.02); C08F 222/1025 (2020.02); C08F 222/1035 (2020.02); C09K 2019/0448 (2013.01);
Abstract

A polymerizable composition containing: a) a polymerizable compound having one or two or more polymerizable groups and satisfying formula (I): Re(450 nm)/Re(550 nm)<1.0 (I); b) at least one photopolymerization initiator selected from the group consisting of alkylphenone-based compounds, acylphosphine oxide-based compounds, and oxime ester-based compounds; and c) a polymerization inhibitor. An optically anisotropic body, a retardation film, an antireflective film, and a liquid crystal display device that are produced using the polymerizable liquid crystal composition. The polymerizable composition is excellent in solubility and has high storage stability, so that no precipitation of crystals etc. occurs. When a film-shaped polymer is produced by polymerizing the above composition, the unevenness of the surface of the coating film is small while the alignment of the liquid crystal is maintained, and high durability is obtained. Therefore, the polymerizable composition is useful.

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