Blue light-blocking resin composition

Patent metadata

Field	Value
Publication number	US-2016304752-A1
Application number	US-201415037641-A
Country	US
Kind code	A1
Filing date	Aug 6, 2014
Priority date	Nov 18, 2013
Publication date	Oct 20, 2016
Grant date	—

Abstract

Embodiments of the invention provide a resin composition for optical articles, which has a blue light-blocking function, is white and transparent, and does not look yellow; and a laminate. According to at least one embodiment, the resin composition includes (A) 1 to 5 parts by mass of white inorganic microparticles and (B) 100 parts by mass of a transparent base resin. The resin composition is characterized in that (i) the white inorganic microparticles have an average particle diameter of 10 to 80 nm and (ii) the difference between the refractive index of the white inorganic microparticles and the refractive index of the base resin is 0.1 or more. According to at least one embodiment, there is provided a laminate which includes a hard coat layer or a cohesive/adhesive agent layer each made from the resin composition and a poly(meth)acrylic imide resin film layer.

First claim

1 . A resin composition, comprising:
(A) 1 to 50 parts by mass of white inorganic fine particles; and (B) 100 parts by mass of a transparent base resin, wherein (i) an average particle size of the white inorganic fine particles is 10 to 80 nm, and (ii) a difference between a refractive index of the white inorganic fine particles and a refractive index of the base resin is 0.1 or more.

2 . The resin composition according to claim 1 , wherein the component (B) is a transparent curable resin.

3 . The resin composition according to claim 1 , wherein the component (B) is a transparent thermoplastic resin.

4 . The resin composition according to claim 1 , wherein the component (B) is a transparent adhesive.

5 . A laminate comprising:
(α) a hard coat layer and (β) a poly(meth)acrylimide resin film layer, wherein the (α) hard coat layer is formed of a transparent curable resin composition comprising: (a) 1 to 50 parts by mass of white inorganic fine particles having an average particle size of 10 to 80 nm; and (b) 100 parts by mass of a transparent curable resin, and wherein (1) a difference between a refractive index of the component (a) and a refractive index of the component (b) is 0.1 or more.

6 . A laminate comprising:
(β) a poly(meth)acrylimide resin film layer; and (γ) an adhesive layer, wherein the (γ) adhesive layer is formed of a transparent adhesive resin composition comprising: (a) 1 to 50 parts by mass of white inorganic fine particles having an average particle size of 10 to 80 nm; and (b) 100 parts by mass of a transparent adhesive resin, wherein (1) a difference between a refractive index of the component (a) and a refractive index of the component (b) is 0.1 or more.

7 . The laminate according to claim 5 or 6 , wherein
the (β) poly(meth)acrylimide resin film layer is a multilayer film having
a first poly(meth)acrylimide resin layer (β);
an aromatic polycarbonate resin layer (δ); and
a second poly(meth)acrylimide resin layer (β2) directly superimposed in this sequence.

8 . A blue light-blocking film formed of the resin composition according to any one of claims 1 to 4 .

9 . A blue light-blocking member comprising the resin composition according to any one of claims 1 to 4 or the laminate according to any one of claims 5 to 7 .

10 . An article with the blue light-blocking member according to claim 9 used therein.

11 . Use of the resin composition according to any one of claims 1 to 4 or the laminate according to any one of claims 5 to 7 for a blue light-blocking member.

Assignees

• Riken Technos Corp

Inventors

• Yamada Kazutaka

Classifications

• C08K2201/005

  Additives being defined by their particle size in general · CPC title

• G02B5/223

  containing organic substances, e.g. dyes, inks or pigments · CPC title

• C09J4/00

  Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond {; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16} · CPC title

• C08K2003/2296

  of zinc · CPC title

• C09J11/04 Primary

  inorganic · CPC title