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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 11447643 B1

PDFFull Text
Date of Patent:
Sep. 20, 2022

Filed:

May. 12, 2021

Hard coating layered optical film, polarizer comprising the same, and image display comprising the hard coating layered optical film and/or the polarizer comprising the same

Applicant:

Benq Materials Corporation, Taoyuan, TW;

Inventors:

Ching-Huang Chen, Taoyuan, TW;

Tze-Chi Wang, Taoyuan, TW;

Kuo-Hsuan Yu, Taoyuan, TW;

Gang-Lun Fan, Taoyuan, TW;

Assignee:

BenQ Materials Corporation, Taoyuan, TW;

Attorney:
Primary Examiner:

Z Jim Yang

Int. Cl.
CPC ...
G02B 1/14 (2015.01); C09D 5/00 (2006.01); C09D 175/14 (2006.01); C09D 7/47 (2018.01); G02B 1/111 (2015.01); C09D 7/40 (2018.01); C09D 135/02 (2006.01); C09D 7/65 (2018.01); C09D 175/16 (2006.01);
U.S. Cl.
CPC ...
C09D 5/006 (2013.01); C09D 5/002 (2013.01); C09D 7/47 (2018.01); C09D 7/65 (2018.01); C09D 7/67 (2018.01); C09D 7/70 (2018.01); C09D 135/02 (2013.01); C09D 175/14 (2013.01); C09D 175/16 (2013.01); G02B 1/111 (2013.01); G02B 1/14 (2015.01); Y10T 428/24355 (2015.01); Y10T 428/24364 (2015.01);
Abstract

This invention is to provide a hard coating film, comprising a polymethyl methacrylate (PMMA) base film and an antiglare hard coating layer formed thereon, wherein the antiglare hard coating layer comprises a (meth)acrylate composition, an initiator, a plurality of silica nanoparticles, a plurality of organic microparticles and a leveling agent. The (meth)acrylate composition comprises a urethane (meth)acrylate oligomer with a functionality of 6 to 15 and a molecular weight ranging between 1,000 and 4,500, and at least one (meth)acrylate monomer with a functionality of 3 to 6, and at least one (meth)acrylate monomer with functionality of less than 3.

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