Transparent laminate

Patent metadata

Field	Value
Publication number	US-11124657-B2
Application number	US-201615574619-A
Country	US
Kind code	B2
Filing date	May 13, 2016
Priority date	May 21, 2015
Publication date	Sep 21, 2021
Grant date	Sep 21, 2021

Abstract

A transparent laminate including a transparent substrate and structure layer, wherein the structure layer contains protrusion portions, depression portions, or both on a surface thereof, and an average distance between the adjacent protrusion portions or between the adjacent depression portions is equal to or less than a visible light wavelength, the structure layer includes a polymerized product of an active energy ray curable resin composition, the resin composition includes a composition of a (meth)acryloyl group-containing polymerizable compound, the compound composition includes one or more from each of (A), (B), and (C):(A) a monofunctional (meth)acryloyl group-containing polymerizable compound;(B) alkylene glycol di(meth)acrylate; and(C) trifunctional or higher (meth)acrylate,the (A) satisfies certain conditions specifying a type and amount of a compound, and a ratio (E′150/E′50) of storage elastic modulus E′150 of the structure layer at 150° C. to storage elastic modulus E′50 thereof at 50° C. is 0.5 or less.

First claim

The invention claimed is:

1. A transparent laminate comprising:
a transparent substrate; and
a structure layer,
wherein the structure layer contains protrusion portions, depression portions, or both on a surface of the structure layer, and an average distance between the adjacent protrusion portions or an average distance between the adjacent depression portions is equal to or less than a wavelength of visible light,
the structure layer includes a polymerized product of an active energy ray curable resin composition,
the active energy ray curable resin composition includes a composition of a (meth)acryloyl group-containing polymerizable compound, the composition of a (meth)acryloyl group-containing polymerizable compound includes one or more of (A) below, one or more of (B) below, and one or more of (C) below:
(A) a monofunctional (meth)acryloyl group-containing polymerizable compound;
(B) alkylene glycol di(meth)acrylate; and
(C) trifunctional or higher (meth)acrylate;

the (A) monofunctional (meth)acryloyl group-containing polymerizable compound satisfies (A-1) below or (A-2) below:
(A-1) a nitrogen-containing monofunctional (meth)acryloyl group-containing polymerizable compound that includes nitrogen in a structure thereof is included but a nitrogen-free monofunctional (meth)acryloyl group-containing polymerizable compound that does not include nitrogen in a structure thereof is not included, and an amount of the nitrogen-containing monofunctional (meth)acryloyl group-containing polymerizable compound in the active energy ray curable resin composition is 20% by mass or greater; and
(A-2) a nitrogen-containing monofunctional (meth)acryloyl group-containing polymerizable compound that includes nitrogen in a structure thereof and a nitrogen-free monofunctional (meth)acryloyl group-containing polymerizable compound that does not include nitrogen in a structure thereof are included, an amount of the nitrogen-containing monofunctional (meth)acryloyl group-containing polymerizable compound in the active energy ray curable resin composition is 20% by mass or greater, and an amount of the nitrogen-free monofunctional (meth)acryloyl group-containing polymerizable compound in the active energy ray curable resin composition is 22% by mass or less,

the (C) trifunctional or higher (meth)acrylate consists of trifunctional (meth)acrylate, wherein an amount of the trifunctional (meth)acrylate in the active energy ray curable resin composition is from 5% by mass to 24% by mass, and
a ratio (E′ 150 /E′ 50 ) of storage elastic modulus E′ 150 of the structure layer at 150° C. to storage elastic modulus E′ 50 of the structure layer at 50° C. is 0.5 or less.

2. The transparent laminate according to claim 1 , wherein the nitrogen-containing monofunctional (meth)acryloyl group-containing polymerizable compound includes a cyclic structure containing nitrogen in a molecule thereof.

3. The transparent laminate according to claim 2 , wherein the nitrogen-containing monofunctional (meth)acryloyl group-containing polymerizable compound is acryloyl morpholine.

4. The transparent laminate according to claim 1 , wherein the nitrogen-free monofunctional (meth)acryloyl group-containing polymerizable compound includes a cyclic structure containing oxygen in a molecule thereof.

5. The transparent laminate according to claim 4 , wherein the nitrogen-free monofunctional (meth)acryloyl group-containing polymerizable compound is tetrahydrofurfuryl acrylate.

6. The transparent laminate according to claim 1 , wherein a water contact angle on a surface of the structure layer is 26° or greater.

7. The transparent laminate according to claim 1 , wherein an in-plane retardation value of the transparent substrate is 20 nm or less.

8. An optical element for face comprising:
the transparent laminate according to claim 1 .

Assignees

• Dexerials Corp

Inventors

• Ohta Eiji
• Kakinuma Masayasu
• Takenouchi Masaki
• Kawamura Satoshi
• Tanifuji Kiyoaki
• Yoshida Emi
• Nishimura Kimitaka
• Kajiya Shunichi
• Ohkawara Shigehisa
• Ogawa Maki

Classifications

• C09D4/00

  Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond {; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16} · CPC title

• G02B1/18

  Coatings for keeping optical surfaces clean, e.g. hydrophobic or photo-catalytic films (G02B1/16 takes precedence) · CPC title

• A61F2210/0076

  multilayered, e.g. laminated structures · CPC title

• A61F9/022

  Use of special optical filters, e.g. multiple layers, filters for protection against laser light or light from nuclear explosions, screens with different filter properties on different parts of the screen; Rotating slit-discs (optical filters per se G02B5/20) · CPC title

• A61F9/029

  Additional functions or features, e.g. protection for other parts of the face such as ears, nose or mouth; Screen wipers or cleaning devices · CPC title