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US-9773931-B2 · Sep 26, 2017 · US
Anti-reflective coating on oxide particles for sunscreen applications
US10772808B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10772808-B2 |
| Application number | US-201615082639-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 28, 2016 |
| Priority date | Sep 3, 2015 |
| Publication date | Sep 15, 2020 |
| Grant date | Sep 15, 2020 |
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- Title
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Abstract
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Zinc oxide compositions and methods for applying anti-reflective coating on oxide particles for sunscreen applications are provided herein. A method includes selecting one or more coating materials to be applied to zinc oxide particles in a sunscreen composition, wherein said selecting is based on optical properties of the coating materials, wherein the optical properties comprises at least the refractive index of each of the coating materials, and applying the selected coating materials to the zinc oxide particles to create the sunscreen composition. A composition includes multiple zinc oxide particles suspended within a medium forming sunscreen composition, and one or more coating materials applied to each of the zinc oxide particles, wherein each of the coating materials has a refractive index that is between the refractive index of air and the refractive index of zinc oxide, and wherein at least one of the coating materials incorporates a textured surface.
First claim
Opening claim text (preview).
What is claimed is: 1. A composition comprising: multiple zinc oxide particles suspended within a medium forming sunscreen composition; a first coating layer applied to the outside of each of the multiple zinc oxide particles, wherein the first coating layer consists of a combination of silicon dioxide, magnesium fluoride, multiple fluoropolymers, aluminum oxide, zinc sulfide, and titanium dioxide, and wherein the first coating layer has a textured exterior surface; and a second coating layer applied to the outside of each of the first coating layer, wherein the second coating layer consists of a combination of silicon dioxide, magnesium fluoride, multiple fluoropolymers, zinc sulfide, and titanium dioxide. 2. The composition of claim 1 , wherein each of the first coating layer and the second coating layer is porous, containing one or more voids filled with air.
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Classifications
Compositions of homopolymers or copolymers of compounds having one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers, e.g. PVC, PTFE · CPC title
Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations · CPC title
The particulate/core comprising inorganic material · CPC title
Fluorides; Derivatives thereof · CPC title
containing organic macromolecular compounds · CPC title
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- What does patent US10772808B2 cover?
- Zinc oxide compositions and methods for applying anti-reflective coating on oxide particles for sunscreen applications are provided herein. A method includes selecting one or more coating materials to be applied to zinc oxide particles in a sunscreen composition, wherein said selecting is based on optical properties of the coating materials, wherein the optical properties comprises at least the…
- Who is the assignee on this patent?
- IBM
- What technology area does this patent fall under?
- Primary CPC classification A61K8/27. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Sep 15 2020 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).