Hard coat film
US-2019292342-A1 · Sep 26, 2019 · US
Hardcoat film and article and image display device having hardcoat film
US2021023827A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2021023827-A1 |
| Application number | US-202017038890-A |
| Country | US |
| Kind code | A1 |
| Filing date | Sep 30, 2020 |
| Priority date | Apr 26, 2018 |
| Publication date | Jan 28, 2021 |
| Grant date | — |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A hardcoat film has a substrate, a hardcoat layer, and a mixed layer in this order. The hardcoat layer contains a cured product of polyorganosilsesquioxane (a1) having an epoxy group. The mixed layer contains a cured product of a compound (b1) having an epoxy group and a cured product of a compound (b2) having two or more (meth)acryloyl groups in one molecule.
First claim
Opening claim text (preview).
What is claimed is: 1 . A hardcoat film comprising: a substrate; a hardcoat layer; and a mixed layer in this order, wherein the hardcoat layer contains a cured product of polyorganosilsesquioxane (a1) having an epoxy group, and the mixed layer contains a cured product of a compound (b1) having an epoxy group and a cured product of a compound (b2) having two or more (meth)acryloyl groups in one molecule. 2 . The hardcoat film according to claim 1 , wherein a thickness of the mixed layer is 0.05 μm to 10 μm. 3 . The hardcoat film according to claim 1 , further comprising: an anti-scratch layer on one surface of the mixed layer that is opposite to the other surface of the mixed layer coming into contact with the hardcoat layer, wherein the anti-scratch layer contains a cured product of a compound (c1) having two or more (meth)acryloyl groups in one molecule. 4 . The hardcoat film according to claim 3 , wherein a total thickness of the mixed layer and the anti-scratch layer is 0.1 μm to 10 μm. 5 . The hardcoat film according to claim 1 , wherein the polyorganosilsesquioxane (a1) having an epoxy group is polyorganosilsesquioxane having an alicyclic epoxy group. 6 . The hardcoat film according to claim 1 , wherein the compound (b1) having an epoxy group is polyorganosilsesquioxane having an epoxy group. 7 . The hardcoat film according to claim 6 , wherein the compound (b1) having an epoxy group is polyorganosilsesquioxane having an alicyclic epoxy group. 8 . The hardcoat film according to claim 1 , wherein in the mixed layer, a content rate of the cured product of the compound (b2) having two or more (meth)acryloyl groups in one molecule is equal to or higher than 10% by mass with respect to a total amount of the cured product of the compound (b1) having an epoxy group and the cured product of the compound (b2) having two or more (meth)acryloyl groups in one molecule. 9 . The hardcoat film according to claim 1 , wherein the hardcoat layer does not contain a cured product of a compound having a (meth)acryloyl group, or a content rate of the cured product of a compound having a (meth)acryloyl group is less than 10% by mass with respect to a total amount of the cured product of the polyorganosilsesquioxane (a1) having an epoxy group and the cured product of the compound having a (meth)acryloyl group. 10 . The hardcoat film according to claim 1 , wherein the substrate contains an imide-based polymer. 11 . An article comprising: the hardcoat film according to claim 1 . 12 . An image display device comprising the hardcoat film according to claim 1 as a surface protection film.
Assignees
Inventors
Classifications
- G02B1/14Primary
Protective coatings, e.g. hard coatings · CPC title
All layers being polymeric · CPC title
2 layers · CPC title
comprising acrylic (co)polymers · CPC title
comprising epoxy resins · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2021023827A1 cover?
- A hardcoat film has a substrate, a hardcoat layer, and a mixed layer in this order. The hardcoat layer contains a cured product of polyorganosilsesquioxane (a1) having an epoxy group. The mixed layer contains a cured product of a compound (b1) having an epoxy group and a cured product of a compound (b2) having two or more (meth)acryloyl groups in one molecule.
- Who is the assignee on this patent?
- Fujifilm Corp
- What technology area does this patent fall under?
- Primary CPC classification G02B1/14. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Jan 28 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).