Living body-adhesive sheet
US-2021008001-A1 · Jan 14, 2021 · US
Membrane for sticking to living organism, and method for producing same
US11369686B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11369686-B2 |
| Application number | US-201916260638-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 29, 2019 |
| Priority date | Nov 18, 2016 |
| Publication date | Jun 28, 2022 |
| Grant date | Jun 28, 2022 |
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- Title
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Abstract
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A cellulose membrane according to an embodiment of the present disclosure is a self-supporting cellulose membrane having a thickness of between 20 nm and 1300 nm, inclusive, composed of regenerated cellulose having a weight average molecular weight of 150,000 or more.
First claim
Opening claim text (preview).
The invention claimed is: 1. A membrane for sticking to a living organism, wherein the membrane is capable of keeping a form of the membrane without a support, the membrane is formed of regenerated cellulose having a weight average molecular weight of 150,000 or more, and the membrane has a thickness of between 20 nm and 1300 nm, inclusive. 2. The membrane for sticking to a living organism according to claim 1 , wherein the membrane has an area of 7 mm 2 or more. 3. The membrane for sticking to a living organism according to claim 1 , wherein the membrane has a tensile strength of 23 MPa or more. 4. The membrane for sticking to a living organism according to claim 1 , wherein the membrane has a water vapor transmission rate of 1×10 4 g/m 2 ·24 h or more. 5. The membrane for sticking to a living organism according to claim 1 , wherein the membrane has a contact angle with water of 30° or less. 6. The membrane for sticking to a living organism according to claim 1 , wherein the membrane has a degree of crystallinity between 0% and 12%, inclusive. 7. The membrane for sticking to a living organism according to claim 1 , wherein the membrane has a bulk density between 0.3 g/cm 3 and 1.5 g/cm 3 , inclusive. 8. The membrane for sticking to a living organism according to claim 1 , wherein a component acting on living organism or a component protecting living organism is retained by at least a part inside the membrane. 9. The membrane for sticking to a living organism according to claim 1 , wherein a coloring component is retained by at least a part inside the membrane, and the membrane is used as cosmetics or medical supplies. 10. A multilayer sheet comprising: the membrane according to claim 1 ; and a first protective layer disposed on one of principal surfaces of the membrane for sticking to living organism, wherein the first protective layer is detachable from the one of principal surfaces. 11. The multilayer sheet according to claim 10 , further comprising: a second protective layer disposed on the other of the principal surfaces of the membrane for sticking to living organism.
Assignees
Inventors
Classifications
Crystalline · CPC title
Aromatic polyamide fibres · CPC title
Polyurethane fibres · CPC title
Elastomeric fibres · CPC title
- C08J5/18Primary
Manufacture of films or sheets · CPC title
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Frequently asked questions
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- What does patent US11369686B2 cover?
- A cellulose membrane according to an embodiment of the present disclosure is a self-supporting cellulose membrane having a thickness of between 20 nm and 1300 nm, inclusive, composed of regenerated cellulose having a weight average molecular weight of 150,000 or more.
- Who is the assignee on this patent?
- Panasonic Ip Man Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C08J5/18. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 28 2022 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).