Monophosphite ligands having a tert-butyloxycarbonyl group
US-9221850-B2 · Dec 29, 2015 · US
DOPO derivative flame retardants
US9522927B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9522927-B2 |
| Application number | US-201414464156-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 20, 2014 |
| Priority date | May 19, 2009 |
| Publication date | Dec 20, 2016 |
| Grant date | Dec 20, 2016 |
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Abstract
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The present invention relates to novel, halogen-free flame retardant derived from 9,10-Dihydro-9-Oxa-10-Phosphaphenantrene-10-oxide (DOPO). This invention also relates to the use of the halogen free DOPO derived flame retardant in polymers.
First claim
Opening claim text (preview).
What is claimed is: 1. A compound having the following structure: 2. A composition comprising the compound of claim 1 , wherein said composition has an unreacted DOPO concentration of less than about 50,000 ppm. 3. A composition comprising the compound of claim 1 , wherein said composition has a solvent concentration less than about 1,000…
Assignees
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- C07F9/65744Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
- C07F9/657109Primary
Chemistry & Metallurgy · mapped topic
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Frequently asked questions
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- What does patent US9522927B2 cover?
- The present invention relates to novel, halogen-free flame retardant derived from 9,10-Dihydro-9-Oxa-10-Phosphaphenantrene-10-oxide (DOPO). This invention also relates to the use of the halogen free DOPO derived flame retardant in polymers.
- Who is the assignee on this patent?
- Albemarle Corp
- What technology area does this patent fall under?
- Primary CPC classification C07F9/65744. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 20 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).