Actinic-ray-curable resin composition, layered film including hardcoat formed therefrom, and layered transparent resin product

Patent metadata

Field	Value
Publication number	US-10696861-B2
Application number	US-201916529103-A
Country	US
Kind code	B2
Filing date	Aug 1, 2019
Priority date	May 30, 2014
Publication date	Jun 30, 2020
Grant date	Jun 30, 2020

Abstract

Embodiments relate to a hard coat-laminated film for a touch panel display face plate, the hard coat-laminated film including: a transparent resin film, and a hard coat formed on at least one surface of the transparent resin film from a coating material including an active energy ray-curable resin composition. The hard coat-laminated film meets the following requirements (1-i) to (1-v): (1-i) a total light transmittance of 80% or higher, (1-ii) a haze of 3.0% or lower, (1-iii) a yellowness index of 3 or lower, (1-iv) a water contact angle of a touch surface of 100° or larger; and (1-v) a water contact angle of the touch surface of 100° or larger after 20,000-times reciprocal cotton wiping of the touch panel.

First claim

The invention claimed is:

1. A hard coat-laminated film for a touch panel display face plate, the hard coat-laminated film comprising:
a transparent resin film; and
a hard coat formed on at least one surface of the transparent resin film from a coating material comprising an active energy ray-curable resin composition,
wherein a thickness of the hard coat is larger than 10 μm, and
wherein the hard coat-laminated film meets the following requirements (1-i) to (1-v):
(1-i) a total light transmittance of 80% or higher;
(1-ii) a haze of 3.0% or lower;
(1-iii) a yellowness index of 3 or lower;
(1-iv) a water contact angle of a touch surface of the hard coat of 100° or larger; and
(1-v) a water contact angle of the touch surface of the hard coat of 100° or larger after 20,000-times reciprocal cotton wiping of the touch panel.

2. The hard coat-laminated film according to claim 1 , wherein the transparent resin film is a poly(meth)acrylimide resin film.

3. The hard coat-laminated film according to claim 2 , wherein the poly(meth)acrylimide resin film is a transparent multilayer film comprising:
a first poly(meth)acrylimide resin layer (α1);
an aromatic polycarbonate resin layer (β); and
a second poly(meth)acrylimide resin layer (α2),
directly laminated in this order.

4. The hard coat-laminated film according to claim 1 , wherein a pencil hardness of the touch surface of the hard coat is 4H or higher.

5. An image display apparatus member, comprising the hard coat-laminated film according claim 1 .

6. A transparent resin laminate, comprising a layer of a hard coat and a layer of a poly(meth)acrylimide resin sheet in order from the outermost surface layer side, wherein a thickness of the hard coat is larger than 10 μm, and wherein the transparent resin laminate meets the following properties (2-i) to (2-v):
(2-i) a total light transmittance of 80% or higher;
(2-ii) a haze of 5% or lower;
(2-iii) a yellowness index of 3 or lower;
(2-iv) a water contact angle of the hard coat surface of 100° or larger; and
(2-v) a water contact angle of the hard coat surface of 100° or larger after 20,000-times reciprocal cotton wiping of the hard coat surface.

7. The transparent resin laminate according to claim 6 , wherein the poly(meth)acrylimide resin sheet is a laminated sheet comprising:
a first poly(meth)acrylimide resin layer;
an aromatic polycarbonate resin layer; and
a second poly(meth)acrylimide resin layer,
directly laminated in this order.

8. The transparent resin laminate according to claim 6 , wherein a pencil hardness of the hard coat surface is 7H or higher.

9. A vehicle member comprising the transparent resin laminate according to claim 6 .

10. A building member comprising the transparent resin laminate according to claim 6 .

11. The hard coat-laminated film according to claim 1 , wherein a thickness of the hard coat is 20 μm or larger.

12. The hard coat-laminated film according to claim 6 , wherein a thickness of the hard coat is 20 μm or larger.

Assignees

• Riken Technos Corp

Inventors

• Itagaki Yasuhiro
• Ito Shigekazu

Classifications

• C08F120/00

  Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof · CPC title

• C09D169/00

  Coating compositions based on polycarbonates; Coating compositions based on derivatives of polycarbonates · CPC title

• B32B27/34

  comprising polyamides · CPC title

• C08J7/046

  Forming abrasion-resistant coatings; Forming surface-hardening coatings · CPC title

• C08J7/043

  Improving the adhesiveness of the coatings per se, e.g. forming primers (adhesives in the form of films or foils characterised by the primer layers between the polymer carriers and the adhesives C09J7/50) · CPC title