Polypeptide particle and method for producing same
US-2015376247-A1 · Dec 31, 2015 · US
Resin particles and cosmetic preparation
US2025255788A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2025255788-A1 |
| Application number | US-202519050493-A |
| Country | US |
| Kind code | A1 |
| Filing date | Feb 11, 2025 |
| Priority date | Feb 14, 2024 |
| Publication date | Aug 14, 2025 |
| Grant date | — |
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Abstract
Official abstract text for this publication.
Resin particles have closed cells inside and have a volume-average particle size of 1 μm or more and 30 μm or less, the closed cells have an average long axis length of 0.1 μm or more and 2.0 μm or less, and a closed cell porosity is 1% or more and 40% or less.
First claim
Opening claim text (preview).
What is claimed is: 1 . Resin particles having closed cells inside, wherein the resin particles have a volume-average particle size of 1 μm or more and 30 μm or less, the closed cells have an average long axis length of 0.1 μm or more and 2.0 μm or less, and a closed cell porosity is 1% or more and 40% or less. 2 . The resin particles according to claim 1 , comprising a biodegradable resin as a main component. 3 . The resin particles according to claim 2 , wherein the biodegradable resin is a cellulose. 4 . The resin particles according to claim 1 , wherein the closed cells have an average long axis length of 0.1 μm or more and 1.5 μm or less. 5 . The resin particles according to claim 1 , wherein the closed cell porosity is 1% or more and 20% or less. 6 . A cosmetic preparation comprising the resin particles according to claim 1 . 7 . A cosmetic preparation comprising the resin particles according to claim 2 . 8 . A cosmetic preparation comprising the resin particles according to claim 3 . 9 . A cosmetic preparation comprising the resin particles according to claim 4 . 10 . A cosmetic preparation comprising the resin particles according to claim 5 .
Assignees
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Classifications
Core-shell polymer · CPC title
Biodegradable · CPC title
Cellulose acetate · CPC title
Preparations for care of the skin · CPC title
by organic compounds · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2025255788A1 cover?
- Resin particles have closed cells inside and have a volume-average particle size of 1 μm or more and 30 μm or less, the closed cells have an average long axis length of 0.1 μm or more and 2.0 μm or less, and a closed cell porosity is 1% or more and 40% or less.
- Who is the assignee on this patent?
- Fujifilm Business Innovation Corp
- What technology area does this patent fall under?
- Primary CPC classification A61K8/0279. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Thu Aug 14 2025 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).