Patent US5770306A successfully refreshed from Google Patents.
US5770306A
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US
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Antireflection film containing ultrafine particles, polarizing plate and liquid crystal display device
Assignee: Dai Nippon Printing Co Ltd
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Filing: 1996-03-06
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Granted: 1998-06-23
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Expires: 2016-03-06
Abstract
Abstract An antireflection film, containing ultrafine particles, formed of a resin composition having excellent dispersibility of ultrafine particles in a binder resin and capable of preventing whitening, a polarizing plate, and a liquid crystal display device are provided. At least one resin layer is provided on a transparent substrate film directly or through other layer(s), and at least one of the resin layer has a controlled refractive index and is formed of a resin composition containing ultrafine particles. The outermost layer has a lower refractive index than an underlying layer in direct contact therewith. The resin composition contains a carboxyl-containing (meth)acrylate as part or the whole of a binder resin component. A polyfunctional acrylate having in its molecule three or more acryloyl groups may be added to the binder resin component in order to further enhance the properties of the hard coating.
Inventors
- 👤 Hiroko Suzuki
- 👤 Kiyotaka Takematsu
- 👤 Mitsuru Tsuchiya
- 👤 Hiroomi Katagiri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:36
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B27/18; B32B27/20; B32B7/00; B32B7/04; B32B7/12; G; G02; G02B; G02B1/00; G02B1/10; G02B1/11; G02B1/111; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/133502; B32B2307/00; B32B2307/40; B32B2307/412; B32B2310/00; B32B2310/08; B32B2310/0875; B32B2310/0881; C; C09; C09K; C09K2323/00; C09K2323/03; C09K2323/031; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/256
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
123 words
An antireflection film comprising: a transparent substrate film; and at least one resin layer provided on said transparent substrate film directly or through (an)other layer(s), said at least one resin layer having a controlled refractive index and formed of a resin composition containing ultrafine particles, the outermost layer having a lower refractive index than the underlying layer in direct contact therewith and disposed on either the transparent substrate film or the transparent substrate film side, the resin composition containing as at least part of a binder resin component a carboxyl-containing (meth)acrylate prepared by reacting a compound having at least one acid anhydride in its molecule with an hydroxyl-containing polyfunctional acrylate having an hydroxyl group and at least three acryloyl groups in its molecule.
Claim 2
Dependent Claim
123 words
An antireflection film comprising: a transparent substrate film; and at least one resin layer provided on said transparent substrate film directly or through (an)other layer(s), said at least one resin layer having a controlled refractive index and formed of a resin composition containing ultrafine particles, the outermost layer having a lower refractive index than the underlying layer in direct contact therewith and disposed on either the transparent substrate film or the transparent substrate film side, the resin composition containing as at least part of a binder resin component a carboxyl-containing (meth)acrylate prepared by reacting a compound having at least one acid anhydride in its molecule with an hydroxyl-containing polyfunctional acrylate having an hydroxyl group and at least three acryloyl groups in its molecule.
Claim 3
Dependent Claim
31 words
The antireflection film according to claim 1, wherein the resin composition contains a polyfunctional acrylate having in its molecule three or more acryloyl groups as part of the binder resin component.
Claim 4
Dependent Claim
21 words
The antireflection film according to claim 1, wherein the resin composition contains epoxy acrylate as part of the binder resin component.
Claim 5
Dependent Claim
27 words
The antireflection film according to claim 1, wherein the resin composition contains at least one compound selected from aromatic compounds and halogen compounds other than F compounds.
Claim 6
Dependent Claim
18 words
The antireflection film according to claim 1, wherein the resin composition is an ionizing radiation curing resin composition.
Claim 7
Dependent Claim
29 words
The antireflection film according to claim 1, wherein the resin layer having a controlled refractive index has a higher refractive index than the underlying layer in direct contact therewith.
Claim 8
Dependent Claim
29 words
The antireflection film according to claim 1, wherein the resin layer having a controlled refractive index has a lower refractive index than the underlying layer in direct contact therewith.
References Cited (Backward Citations)
JPS62270336A
Cited
JPH02116543A
Cited
JPH0338388A
Cited
JPH04257438A
Cited
US5424119A
Cited
US5554439A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-06-22 | 2001-12-22 | 2002-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-06-22 | 2005-12-22 | 2006-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-06-22 | 2009-12-22 | 2010-06-23 | $7700.00 | Window Closed / Lapsed |