Porous inorganic/organic homogenous copolymeric hybrid materials for chromatographic separations and process for the preparation thereof
US-9211524-B2 · Dec 15, 2015 · US
Stationary phase
US9327269B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9327269-B2 |
| Application number | US-201314416381-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 8, 2013 |
| Priority date | Jul 23, 2012 |
| Publication date | May 3, 2016 |
| Grant date | May 3, 2016 |
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Abstract
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A stationary phase that increases the number of column stages and that exhibits an excellent molecular discrimination ability is realized by a stationary phase that contains a polymer having, in main chain repeat units, an aromatic ring that forms a portion of the main chain and a bipolar atomic group that forms a portion of the main chain, wherein the stationary phase has a specific surface area of 5 to 1000 m 2 /g.
First claim
Opening claim text (preview).
The invention claimed is: 1. A stationary phase comprising a polymer having, in main chain repeat units, an aromatic ring that forms a portion of the main chain and a bipolar atomic group that forms a portion of the main chain, wherein the stationary phase has a specific surface area of 5 to 1000 m 2 /g and the polymer is supported on a carrier that has a specific surface area of 5 to 1000 m 2 /g. 2. The stationary phase according to claim 1 , wherein the polymer is a polyester, a polysulfone, a polyethersulfone, or a polycarbonate. 3. The stationary phase according to claim 2 , wherein the polymer is a polyester. 4. The stationary phase according to claim 3 , wherein the polyester is polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polyethylene isophthalate, poly(2,2-dimethylpropan-1,3-diyl terephthalate), or poly-4-oxymethylbenzoyl. 5. The stationary phase according to claim 1 , which is a particulate. 6. The stationary phase according to claim 5 , wherein the average particle diameter is 0.1 μm or 1000 μm. 7. The stationary phase according to claim 1 , which is a monolith. 8. The stationary phase according to claim 1 , which is for supercritical fluid chromatography.
Assignees
Inventors
Classifications
- B01J20/285Primary
based on polymers · CPC title
Particle form · CPC title
Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule (polyester-amides C08G69/44; polyester-imides C08G73/16) · CPC title
Inorganic carriers, supports or substrates · CPC title
being less than 100 m2/g · CPC title
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- What does patent US9327269B2 cover?
- A stationary phase that increases the number of column stages and that exhibits an excellent molecular discrimination ability is realized by a stationary phase that contains a polymer having, in main chain repeat units, an aromatic ring that forms a portion of the main chain and a bipolar atomic group that forms a portion of the main chain, wherein the stationary phase has a specific surface ar…
- Who is the assignee on this patent?
- Daicel Corp
- What technology area does this patent fall under?
- Primary CPC classification B01J20/285. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue May 03 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).