Cosmetic composition comprising composite sunscreen particles
US-2015190320-A1 · Jul 9, 2015 · US
Physical solar filter consisting of substituted hydroxyapatite in an organic matrix
US10813856B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10813856-B2 |
| Application number | US-201716082991-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 6, 2017 |
| Priority date | Mar 7, 2016 |
| Publication date | Oct 27, 2020 |
| Grant date | Oct 27, 2020 |
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.
The present invention relates to a composition for the protection against solar radiation, consisting of an organic matrix, preferably a gelatin, and hydroxyapatite nanoparticles modified by the substitution of part of the phosphorus with titanium, and part of the calcium with iron.
First claim
Opening claim text (preview).
The invention claimed is: 1. Composition for the preparation of physical solar filters, comprising an organic matrix formed by polymer molecules, onto which are nucleated nanoparticles of hydroxyapatite substituted with titanium, in which phosphorus is partially replaced by titanium in an amount between 8 and 50% atomic with respect to phosphorus, and in which calcium is optionally partially replaced by iron in an amount between 2 and 40% atomic with respect to calcium, and wherein the composition comprises between 5 and 60% by weight of the organic matrix, between 35 and 90% by weight of the substituted hydroxyapatite, and water. 2. The composition according to claim 1 , wherein the organic matrix is selected from polylactic acid, collagen, sodium alginate, polyethylene glycols (PEGs), chitosan, solid lipid particles (SLPs) and gelatins. 3. The composition according to claim 1 wherein said hydroxyapatite particles have a size between 10 and 200 nm.
Assignees
Inventors
Classifications
Preparation by neutralisation of orthophosphoric acid · CPC title
containing inorganic ingredients · CPC title
Titanium; Compounds thereof · CPC title
- A61K8/24Primary
Phosphorous; Compounds thereof · CPC title
Microsized, i.e. having sizes between 0.1 and 100 microns · 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 US10813856B2 cover?
- The present invention relates to a composition for the protection against solar radiation, consisting of an organic matrix, preferably a gelatin, and hydroxyapatite nanoparticles modified by the substitution of part of the phosphorus with titanium, and part of the calcium with iron.
- Who is the assignee on this patent?
- Consiglio Nazionale Ricerche
- What technology area does this patent fall under?
- Primary CPC classification A61K8/24. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Oct 27 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).