Zinc oxide complexes
US-8933257-B2 · Jan 13, 2015 · US
Zinc oxide complexes
US9273071B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9273071-B2 |
| Application number | US-201414560979-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 4, 2014 |
| Priority date | Oct 29, 2010 |
| Publication date | Mar 1, 2016 |
| Grant date | Mar 1, 2016 |
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- Title
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- Abstract
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Abstract
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Disclosed are compounds and methods of making said compounds comprising a zinc oxide molecule chemically bound to one or more molecules having an acidic hydrogen, such as an organic acid. The invention also provides compositions comprising such compounds and methods of preparing such compounds. The compounds of the invention may be provided in, for example, topical skin formulations, pharmaceutical compositions, or delivery systems for active ingredients.
First claim
Opening claim text (preview).
The invention claimed is: 1. A salicylic acid/zinc oxide complex having the formula of: wherein R 1 is hydrogen or a zinc oxide complex, R 2 is hydrogen or a zinc oxide complex, and at least one of R 1 and R 2 is a zinc oxide complex. 2. The salicylic acid/zinc oxide complex of claim 1 , wherein the salicylic acid/zinc oxide complex is in crystal form. 3. The salicylic acid/zinc oxide complex of claim 1 , wherein the salicylic acid/zinc oxide complex is comprised in a topical skin composition. 4. The salicylic acid/zinc oxide complex of claim 3 , wherein the topical skin composition is a cream, lotion, or gel. 5. The salicylic acid/zinc oxide complex of claim 3 , wherein the topical skin composition is an emulsion. 6. An alpha-hydroxy acid/zinc oxide complex having the formula of: wherein R 1 is hydrogen or a zinc oxide complex, R 2 is hydrogen or a zinc oxide complex, R 3 is hydrogen or a zinc oxide complex, and R 4 is hydrogen or a zinc oxide complex, and at least one of R 1 , R 2 , R 3 and R 4 is a zinc oxide complex. 7. The alpha-hydroxy acid/zinc oxide complex of claim 6 , wherein the alpha-hydroxy acid/zinc oxide complex is a lactic acid/zinc oxide complex having the formula of: 8. The alpha-hydroxy acid/zinc oxide complex of claim 6 , wherein the alpha-hydroxy acid/zinc-oxide complex is a glycolic acid/zinc-oxide complex having the formula of: 9. The alpha-hydroxy acid/zinc oxide complex of claim 6 , wherein the alpha-hydroxy acid/zinc oxide complex is a citric acid/zinc-oxide complex having the formula of:
Assignees
Inventors
Classifications
- C08K5/0091Primary
Complexes with metal-heteroatom-bonds · CPC title
Preparations for care of the skin · CPC title
Manicure or pedicure preparations · CPC title
for chemically tanning the skin (topical sun or radiation screening or tanning preparations A61Q17/04) · CPC title
Crystalline forms, e.g. polymorphs · CPC title
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- What does patent US9273071B2 cover?
- Disclosed are compounds and methods of making said compounds comprising a zinc oxide molecule chemically bound to one or more molecules having an acidic hydrogen, such as an organic acid. The invention also provides compositions comprising such compounds and methods of preparing such compounds. The compounds of the invention may be provided in, for example, topical skin formulations, pharmaceut…
- Who is the assignee on this patent?
- Mary Kay Inc
- What technology area does this patent fall under?
- Primary CPC classification C08K5/0091. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 01 2016 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).