Redox-active therapeutics for treatment of mitochondrial diseases and other conditions and modulation of energy biomarkers
US-2022055975-A1 · Feb 24, 2022 · US
Phosphite compound, method for producing the same and uses thereof
US9902747B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9902747-B2 |
| Application number | US-201615541736-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 9, 2016 |
| Priority date | Feb 17, 2015 |
| Publication date | Feb 27, 2018 |
| Grant date | Feb 27, 2018 |
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 novel phosphite compound represented by the formula (I): wherein R 1 , R 2 , R 3 and R 4 each independently represent a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms, an alkylcycloalkyl group having 6 to 12 carbon atoms, an aralkyl group having 7 to 12 carbon atoms, or an aryl group having 6 to 12 carbon atoms, a process for producing the same, and uses thereof as a stabilizer for an organic material.
First claim
Opening claim text (preview).
The invention claimed is: 1. A phosphite compound represented by the formula (I) wherein R 1 , R 2 , R 3 and R 4 each independently represent a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms, an alkyl cycloalkyl group having 6 to 12 carbon atoms, an aralkyl group having 7 to 12 carbon atoms or an aryl group having 6 to 12 carbon atoms. 2. A hydroxy compound represented by the formula (II) wherein R 3 and R 4 each independently represent a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms, an alkyl cycloalkyl group having 6 to 12 carbon atoms, an aralkyl group having 7 to 12 carbon atoms or an aryl group having 6 to 12 carbon atoms, provided that at least one of R 3 and R 4 is not hydrogen. 3. A method for producing the phosphite compound according to claim 1 , wherein a hydroxy compound represented by formula (II) wherein R 3 and R 4 each independently represent a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms, an alkyl cycloalkyl group having 6 to 12 carbon atoms, an aralkyl group having 7 to 12 carbon atoms or an aryl group having 6 to 12 carbon atoms, a bisphenol compound represented by the formula (III) wherein R 1 and R 2 each independently represent a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms, an alkyl cycloalkyl group having 6 to 12 carbon atoms, an aralkyl group having 7 to 12 carbon atoms or an aryl group having 6 to 12 carbon atoms, and a phosphorus trihalide are reacted. 4. A stabilizer for an organic material, comprising the phosphite compound according to claim 1 . 5. The stabilizer according to claim 4 , wherein the organic material is a thermoplastic resin. 6. The stabilizer according to claim 5 , wherein the thermoplastic resin is a polyolefin or an engineering plastic. 7. A method for stabilizing an organic material, wherein the phosphite compound according to claim 1 is added to an organic material. 8. The method according to claim 7 , wherein the organic material is a thermoplastic resin. 9. The method according to claim 8 , wherein the thermoplastic resin is a polyolefin or an engineering plastic. 10. A stabilized organic material composition comprising an organic material and a phosphite compound according to claim 1 . 11. The composition according to claim 10 , wherein the organic material is a thermoplastic resin. 12. The composition according to claim 11 , wherein the thermoplastic resin is a polyolefin or an engineering plastic.
Assignees
Inventors
Classifications
with hydroxyaryl compounds · CPC title
- C07C39/19Primary
containing carbon-to-carbon double bonds but no carbon-to-carbon triple bonds · CPC title
Compositions of unspecified macromolecular compounds · CPC title
containing only phosphorus · CPC title
- C07F9/65744Primary
condensed with carbocyclic or heterocyclic rings or ring systems · 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 US9902747B2 cover?
- The present invention relates to a novel phosphite compound represented by the formula (I): wherein R 1 , R 2 , R 3 and R 4 each independently represent a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms, an alkylcycloalkyl group having 6 to 12 carbon atoms, an aralkyl group having 7 to 12 carbon atoms, or an ar…
- Who is the assignee on this patent?
- Sumitomo Chemical Co
- What technology area does this patent fall under?
- Primary CPC classification C07C39/19. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 27 2018 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).