Microstructured release liners
US-9353294-B2 · May 31, 2016 · US
Release liner, method of producing release liner, adhesive sheet, and method of producing adhesive sheet
US11613678B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11613678-B2 |
| Application number | US-201917273437-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 4, 2019 |
| Priority date | Sep 7, 2018 |
| Publication date | Mar 28, 2023 |
| Grant date | Mar 28, 2023 |
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 release liner which makes it difficult for an adhesive layer to impair slidability and makes it easy to exhibit an adhesive force suitably, a method of producing a release liner, an adhesive sheet, and a method of producing an adhesive sheet. A release liner has a surface provided with a ridge portion extending linearly, and on the surface, a plurality of recesses having different depths are randomly formed in a surface direction and are continuously connected.
First claim
Opening claim text (preview).
The invention claimed is: 1. A release liner comprising: a surface provided with a plurality of ridge portions extending linearly, wherein the ridge portions are seamlessly and integrally formed with the surface, and, on the surface, a plurality of recesses having different depths are randomly formed between two ridge portions in a surface direction and are continuously connected. 2. The release liner according to claim 1 , wherein the plurality of recesses having different depths are randomly formed and are connected even at an edge of a hem of the ridge portions. 3. The release liner according to claim 1 , wherein the plurality of recesses having different depths formed between two ridge portions are continuously connected to each other in the surface direction. 4. The release liner according to claim 1 , wherein the ridge portions extend from a first edge of the release liner to a second edge of the release liner. 5. An adhesive sheet comprising the release liner according to claim 1 , an adhesive layer disposed on the surface of the release liner, and a base material layer in this order in a stacking direction. 6. A method of producing an adhesive sheet comprising disposing an adhesive layer on the surface of the release liner according to claim 1 and stacking the release liner, the adhesive layer, and a base material layer in this order.
Assignees
Inventors
Classifications
Microembossing · CPC title
characterised by the disposition or the configuration, e.g. dimensions, of the embossments or the shaping tools therefor · CPC title
Compression means for making articles of indefinite length · CPC title
Release layer · CPC title
- B29C59/04Primary
using rollers or endless belts · 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 US11613678B2 cover?
- A release liner which makes it difficult for an adhesive layer to impair slidability and makes it easy to exhibit an adhesive force suitably, a method of producing a release liner, an adhesive sheet, and a method of producing an adhesive sheet. A release liner has a surface provided with a ridge portion extending linearly, and on the surface, a plurality of recesses having different depths are …
- Who is the assignee on this patent?
- Lintec Corp
- What technology area does this patent fall under?
- Primary CPC classification B29C59/04. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 28 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).