IP Library Granted Patent US 8,840,992
Granted Patent B2
US 8,840,992 · App. 12/908,187 · Granted Sep 23, 2014

Curable resin composition and optical film

Inventors: Hiroyuki Iizuka (Chiba, JP); Kenya Ito (Chiba, JP); Koji Ohguma (Chiba, JP); Mikio Yamahiro (Chiba, JP)
Assignee: JNC Corporation
B32B5/16C09D133/08
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Quick Facts
Patent No.
US 8,840,992
App. No.
12/908,187
Granted
Sep 23, 2014
Kind
B2
Abstract

The curable resin composition of the present invention contains inorganic particles and a curable resin. The inorganic particles includes an inorganic particle (a-1) having a Mohs hardness of 7 or more and an average particle diameter of 1 μm or less, an inorganic particle (a-2) having a Mohs hardness of 4 or more to less than 7 and an average particle diameter of 1 μm or less, and an inorganic particle (a-3) having a Mohs hardness of less than 4 and an average particle diameter of 1 μm or less. The curable resin is at least one selected from a group consisting of a thermosetting resin and an active energy ray-curable resin.

Claims (12)

1. A hard coat layer, formed by curing a curable resin composition, wherein the curable resin composition comprising inorganic particles, a curable resin and a curing agent wherein the curable resin is an active energy ray-curable resin, the inorganic particles comprise an inorganic particle (a-1) having a Mohs hardness of 7 or more and an average particle diameter of 10 to 50 nm, an inorganic particle (a-2) having a Mohs hardness of 4 or more to less than 7 and an average particle diameter of 10 to 50 nm, and an inorganic particle (a-3) having a Mohs hardness of less than 4 and an average particle diameter of 10 to 50 nm; the curable resin is at least one selected from the group consisting of a thermosetting resin and an active energy ray-curable resin; and based on a total weight of the curable resin composition, a content of the inorganic particle (a-1) is from 20 wt % to 60 wt %, a content of the inorganic particle (a-2) is from 5 wt % to 20 wt %, a content of the inorganic particle (a-3) is from 0.1 wt % to 5 wt %, a content of the curable resin is from 15 wt % to 74 wt % and a content of the curing agent is from 0.1 wt % to 10 wt %, wherein the inorganic particle (a-1) is at least one selected from alumina and silica, the inorganic particle (a-2) is at least one selected from tin oxide, zirconia, cerium oxide, magnesium fluoride, copper oxide, apatite, fluorite, and ferric oxide, and the inorganic particle (a-3) is at least one selected from cryolite, calcite, gypsum, and talc, and the hard coat layer has a thickness of 10 μm or less.

2. A laminated body, formed by laminating the hard coat layer according to claim 1 on a base material.

3. The laminated body according to claim 2 , wherein the base material is a synthetic resin film, a glass substrate, a ceramic substrate, a semiconductor substrate, or a metal substrate.

4. The laminated body according to claim 2 , wherein the hard coat layer is laminated on a single surface or both surfaces of the base material.

5. An optical film, formed by the laminated body according to claim 2 .

6. A touch panel, comprising the optical film according to claim 5 .

7. A hard coat layer, formed by curing a coating solution, wherein the coating solution formed by a curable resin composition and a solvent, and the curable resin composition comprising inorganic particles, a curable resin and a curing agent wherein the curable resin is an active energy ray-curable resin, the inorganic particles comprise an inorganic particle (a-1) having a Mohs hardness of 7 or more and an average particle diameter of 10 to 50 nm, an inorganic particle (a-2) having a Mohs hardness of 4 or more to less than 7 and an average particle diameter of 10 to 50 nm, and an inorganic particle (a-3) having a Mohs hardness of less than 4 and an average particle diameter of 10 to 50 nm; the curable resin is at least one selected from the group consisting of a thermosetting resin and an active energy ray-curable resin; and based on a total weight of the curable resin composition, a content of the inorganic particle (a-1) is from 20 wt % to 60 wt %, a content of the inorganic particle (a-2) is from 5 wt % to 20 wt %, a content of the inorganic particle (a-3) is from 0.1 wt % to 5 wt %, a content of the curable resin is from 15 wt % to 74 wt % and a content of the curing agent is from 0.1 wt % to 10 wt %, wherein the inorganic particle (a-1) is at least one selected from alumina and silica, the inorganic particle (a-2) is at least one selected from tin oxide, zirconia, cerium oxide, magnesium fluoride, copper oxide, apatite, fluorite, and ferric oxide, and the inorganic particle (a-3) is at least one selected from cryolite, calcite, gypsum, and talc, and the hard coat layer has a thickness of 10 μm or less.

8. A laminated body, formed by laminating the hard coat layer according to claim 7 on a base material.

9. The laminated body according to claim 8 , wherein the base material is a synthetic resin film, a glass substrate, a ceramic substrate, a semiconductor substrate, or a metal substrate.

10. The laminated body according to claim 8 , wherein the hard coat layer is laminated on a single surface or both surfaces of the base material.

11. An optical film, formed by the laminated body according to claim 8 .

12. A touch panel, comprising the optical film according to claim 11 .

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 27, 2011
From: CHISSO CORPORATION
To: JNC CORPORATION
Reel/Frame 026187/0940 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 15, 2011
From: IIZUKA, HIROYUKI; ITO, KENYA; OHGUMA, KOJI; YAMAHIRO, MIKIO
To: CHISSO CORPORATION
Reel/Frame 026141/0057 →
Priority Claims (2)
JP 2009-244220 · Oct 23, 2009 · national
JP 2010-227170 · Oct 7, 2010 · national
Continuity (1)
Related Publication 20110189470A1 · Aug 4, 2011