Surface modified layered double hydroxide
US-2019270891-A1 · Sep 5, 2019 · US
Layered double hydroxide particles in hydrogel matrices
US12209031B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12209031-B2 |
| Application number | US-202218684597-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 19, 2022 |
| Priority date | Aug 20, 2021 |
| Publication date | Jan 28, 2025 |
| Grant date | Jan 28, 2025 |
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.
Exemplary layered double hydroxides (LDHs) may comprise a compound of formula Mg 4-y AlX y (OH) 2 , wherein X is Mn +2 , Cu +2 , Zn +2 , or Fe +2 , and 0.01≤y≤1. Exemplary layered double hydroxide hydrogels (LDH-gels) may comprise a hydrogel and at least one LDH. Exemplary hydrogels may comprise polyethylene (glycol) diacrylate (PEGDA) or polyacrylamide (PAAm). Exemplary LDH-gels may comprise at least one LDH comprising a compound of formula Mg 4-y AlX y (OH) 2 , wherein X is Mn +2 , Cu +2 , Zn +2 , or Fe +2 , and 0.01≤y≤1.
First claim
Opening claim text (preview).
What is claimed: 1. A layered double hydroxide (LDH), the LDH comprising: a compound of formula Mg 4-y AlX y (OH) 2 , wherein: 2. The layered double hydroxide of claim 1 , wherein X is Zn +2 . 3. The layered double hydroxide of claim 1 , wherein X is Fe +2 . 4. The layered double hydroxide of claim 1 , wherein 0.2≤y≤1. 5. The layered double hydroxide of claim 4 , wherein y is 0.2. 6. The layered double hydroxide of claim 4 , wherein y is 0.4. 7. The layered double hydroxide of claim 4 , wherein y is 1. 8. A layered double hydroxide hydrogel (LDH-gel), the LDH-gel comprising a hydrogel and at least one layered double hydroxide (LDH), the at least one LDH comprising: a compound of formula Mg 4-y AlX y (OH) 2 , wherein: 9. The LDH-gel of claim 8 , wherein the hydrogel comprises polyethylene (glycol) diacrylate (PEGDA), polyacrylamide (PAAm), or combinations thereof. 10. The LDH-gel of claim 9 , wherein the hydrogel comprises polyethylene (glycol) diacrylate (PEGDA). 11. The LDH-gel of claim 9 , wherein the hydrogel comprises polyacrylamide (PAAm). 12. The LDH-gel of claim 8 , wherein X is Zn +2 . 13. The LDH-gel of claim 8 , wherein X is Fe +2 . 14. The LDH-gel of claim 8 , wherein the LDH-gel comprises more than one LDH comprising a compound of formula Mg 4-y AlX y (OH) 2 . 15. The LDH-gel of claim 14 , wherein the LDH-gel comprises a first LDH comprising a compound of formula Mg 4-y AlX y (OH) 2 where X is Zn +2 and a second LDH comprising a compound of formula Mg 4-y AlX y (OH) 2 where X is Fe +2 . 16. The LDH-gel of claim 8 , wherein 0.2≤y≤1. 17. The LDH-gel of claim 16 , wherein y is 0.2. 18. The LDH-gel of claim 16 , wherein y is 1. 19. The LDH-gel of claim 8 , wherein the LDH-gel is in the form of a bead.
Assignees
Inventors
Classifications
Phosphorus compounds · CPC title
using composite sorbents, e.g. coated, impregnated, multi-layered · CPC title
using inorganic sorbents · CPC title
Runoff or storm water · CPC title
depicted by an image · 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 US12209031B2 cover?
- Exemplary layered double hydroxides (LDHs) may comprise a compound of formula Mg 4-y AlX y (OH) 2 , wherein X is Mn +2 , Cu +2 , Zn +2 , or Fe +2 , and 0.01≤y≤1. Exemplary layered double hydroxide hydrogels (LDH-gels) may comprise a hydrogel and at least one LDH. Exemplary hydrogels may comprise polyethylene (glycol) diacrylate (PEGDA) or polyacrylamide (PAAm). Exemplary LDH-gels may comprise a…
- Who is the assignee on this patent?
- Univ Duke
- What technology area does this patent fall under?
- Primary CPC classification C01F7/784. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 28 2025 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).