Active energy curable resin composition, hard coat laminated film, and film for application to glass

Patent metadata

Field	Value
Publication number	US-12528965-B2
Application number	US-202117554867-A
Country	US
Kind code	B2
Filing date	Dec 17, 2021
Priority date	May 30, 2017
Publication date	Jan 20, 2026
Grant date	Jan 20, 2026

Abstract

Embodiments provide an anchor coat agent, including: (P) a polymer comprised of: (p1) a structural unit derived from a (meth)acrylate having one or more of one or more types of backbones selected from the group consisting of a benzotriazole backbone, a triazine backbone, and a benzophenone backbone per molecule in an amount of 1-50 mol %, (p2) a structural unit derived from an alkyl (meth)acrylate in an amount of 30-95 mol %, and (p3) a structural unit derived from a hydroxyl group-containing (meth)acrylate in an amount of 1-50 mol %, provided that the sum of structural units derived from all constituent monomers is 100 mol %.

First claim

I claim:

1 . A hard coat laminated film, comprising:
a hard coat; an anchor coat; and a resin film layer in order from a surface on a side upon which sunlight is incident in an actual state of use, wherein the hard coat is formed of a coating material containing a polymer (A) consisting of:
(a1) a structural unit derived from a (meth)acrylate having one or more of one or more types of backbones selected from the group consisting of a benzotriazole backbone, a triazine backbone, and a benzophenone backbone per molecule,
(a2) a structural unit derived from an alkyl (meth)acrylate,
(a3) a structural unit derived from a compound containing one or more isocyanate groups per molecule, and
(a4) a structural unit derived from a hydroxyl group containing (meth)acrylate,
wherein (a1) the structural unit is present in an amount of 47 parts by mass to 59 parts by mass with the sum of the structural unit (a1), the structural unit (a2), and the structural unit (a3) adding to 100 parts by mass, and
wherein (a1) the structural unit is present in an amount of 10 mol % to 60 mol % with the sum of the structural unit (a1), the structural unit (a2), and the structural unit (a3) adding to 100 mol %, and
(B) a polyfunctional (meth)acrylate, the amount of the (B) polyfunctional (meth)acrylate being 20 parts by mass or more and 600 parts by mass or less based on 100 parts by mass of the amount of the polymer (A), and wherein
the anchor coat is formed of an anchor coat agent, comprising:
(P) a polymer comprised of:
(p1) a structural unit derived from a (meth)acrylate having one or more of one or more types of backbones selected from the group consisting of a benzotriazole backbone, a triazine backbone, and a benzophenone backbone per molecule in an amount of 1-50 mol %;
(p2) a structural unit derived from an alkyl (meth)acrylate in an amount of 30-95 mol %; and
(p3) a structural unit derived from a hydroxyl group-containing (meth)acrylate in an amount of 1-50 mol %, provided that the sum of structural units derived from all constituent monomers is 100 mol %.

2 . The hard coat laminated film according to claim 1 , wherein the hard coat laminated film satisfies the following characteristics (i), (ii), and (iv):
(i) a visible light transmittance of 80% or more; (ii) a UV transmittance of 1% or less; and (iv) adhesiveness of classification 4, classification 3, classification 2, classification 1, or classification 0 exhibited when (1) a test piece is set such that a hard coat side surface of the hard coat laminated film is an irradiated surface using a sunshine carbon arc type weather resistance tester specified in JIS B7753: 2007 in accordance with 6.10 weather resistance in JIS A5759: 2016, and the test piece is subjected to an accelerated weather resistance treatment for 1000 hours under conditions shown in Table 11 of 6.10 weather resistance in JIS A5759: 2016, and (2) the hard coat laminated film subjected to the accelerated weather resistance treatment is then subjected to a square lattice pattern test by forming a square lattice pattern cut on the hard coat laminated film from a hard coat surface side according to JIS K5600-5-6:1999.

3 . The hard coat laminated film according to claim 1 , wherein the coating material is free of inorganic particles.

4 . The hard coat laminated film according to claim 1 , wherein a thickness of the anchor coat is 1 to 60 μm.

5 . The hard coat laminated film according to claim 1 , wherein (p1) the structural unit comprises the structural unit derived from the (meth)acrylate having one or more of the benzotriazole backbone.

6 . The hard coat laminated film according to claim 1 , wherein (p2) the structural unit consists of one or more structural units selected from the group consisting of a methyl methacrylate, a methyl acrylate, an ethyl methacrylate, and an ethyl acrylate.

7 . The hard coat laminated film according to claim 1 , wherein the anchor coat agent further comprising:
(Q) a compound having two or more isocyanate groups per molecule in an amount of 1-50 parts by mass with respect to 100 parts by mass of (P) the polymer.

8 . The hard coat laminated film according to claim 1 , wherein the anchor coat agent further comprising:
(Q) a compound having two or more isocyanate groups per molecule, a blending amount of (Q) the compound is determined such that a number of the isocyanate groups is 40 to 200 with a number of the hydroxyl groups in the anchor coat agent as 100.

9 . The hard coat laminated film according to claim 1 , wherein (p2) the structural unit comprises (p2-1) one or more structural units selected from the group consisting of a methyl methacrylate, a methyl acrylate, an ethyl methacrylate, and an ethyl acrylate, and wherein an amount of (p2-1) the structural units is 50-95 mol %, provided that the sum of structural units derived from all constituent monomers is 100 mol %.

10 . The hard coat laminated film according to claim 9 , wherein the amount of (p2-1) the structural units is 60-95 mol %.

11 . The hard coat laminated film according to claim 1 , wherein (p1) the structural unit comprises the structural unit derived from the (meth)acrylate having one or more of the triazine backbone.

12 . The hard coat laminated film according to claim 1 , wherein (p1) the structural unit comprises the structural unit derived from the (meth)acrylate having one or more of the benzophenone backbone.

13 . The hard coat laminated film according to claim 1 , wherein (a3) the structural unit comprises a structural unit derived from a compound having two or more isocyanate groups per molecule.

14 . The hard coat laminated film according to claim 1 , wherein the content of the structural unit (a2) is 10 mol % or more and 50 mol % or less with the sum of the structural unit (a1), the structural unit (a2), and the structural unit (a3) adding to 100 mol %.

15 . A glass window film for exterior use, comprising:
the hard coat laminated film according to claim 1 .

16 . The glass window film for exterior use according to claim 15 , further comprising:
a pressure-sensitive adhesive layer formed on a surface of the resin film layer of the hard coat laminated film opposite to a hard coat side surface of the resin film layer, wherein the pressure-sensitive adhesive layer contains an ultraviolet absorber in an amount of 0.01-50 parts by mass with respect to 100 parts by mass of a base resin of the pressure-sensitive adhesive layer.

Assignees

• Riken Technos Corp

Inventors

• Shimizu Motohiro

Classifications

• 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

• C09D133/12

  Homopolymers or copolymers of methyl methacrylate · CPC title

• C08L2203/16

  used for films · CPC title

• C08L33/12

  Homopolymers or copolymers of methyl methacrylate · CPC title