Fluorinated polymer and use thereof in the preparation of hydrophilic membranes (vi)
US-2015375181-A1 · Dec 31, 2015 · US
1234YF- and 1234ZE-based polymeric membrane materials, membrane preparations and uses thereof
US9782730B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9782730-B2 |
| Application number | US-201414264093-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 29, 2014 |
| Priority date | May 14, 2013 |
| Publication date | Oct 10, 2017 |
| Grant date | Oct 10, 2017 |
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- Title
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- Abstract
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- First independent claim
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Abstract
Official abstract text for this publication.
The present invention generally relates to polymeric membrane materials formed, at least in part, from monomeric material selected from 2,3,3,3-tetrafluoropropene (CF 3 CF═CH 2 , HFO-1234yf) or trans-1,3,3,3-tetrafluoropropene (CF 3 CH═CFH, HFO-1234ze), and to membrane preparations and uses thereof in water desalination, filtration, membrane distillation, pervaporation, and selective gas separation.
First claim
Opening claim text (preview).
What is claimed is: 1. A membrane consisting of a copolymer having units based on vinylidene fluoride (“VDF”) monomer and more than 30 wt % of units based on trans-1,3,3,3-tetrafluoropropene monomer. 2. The membrane of claim 1 wherein said copolymer has more than 50 wt % of units based on trans-1,3,3,3-tetrafluoropropene monomer. 3. The membrane according to claim 1 , wherein the membrane is asymmetric integrally skinned. 4. The membrane according to claim 1 , wherein the membrane is a thin film composite membrane. 5. The membrane according to claim 1 , wherein the membrane has a flat sheet configuration. 6. The membrane according to claim 1 , wherein the membrane has a hollow fiber configuration. 7. The membrane according to claim 1 , wherein the membrane is a reverse osmosis membrane. 8. The membrane according to claim 1 , wherein the membrane is selected from the group consisting of microfiltration membranes, ultrafiltration membranes, and nanofiltration membranes. 9. The membrane according to claim 1 , wherein the membrane is a pervaporation membrane. 10. The membrane according to claim 1 , wherein the membrane is a distillation membrane. 11. The membrane according to claim 1 , wherein the membrane is porous.
Assignees
Inventors
Classifications
Details relating to the spinning process · CPC title
- B01D71/32Primary
containing fluorine atoms · CPC title
Chemical resistance · CPC title
Degradation or stability over time · CPC title
Mechanical properties, e.g. strength · CPC title
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Frequently asked questions
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- What does patent US9782730B2 cover?
- The present invention generally relates to polymeric membrane materials formed, at least in part, from monomeric material selected from 2,3,3,3-tetrafluoropropene (CF 3 CF═CH 2 , HFO-1234yf) or trans-1,3,3,3-tetrafluoropropene (CF 3 CH═CFH, HFO-1234ze), and to membrane preparations and uses thereof in water desalination, filtration, membrane distillation, pervaporation, and selective gas separa…
- Who is the assignee on this patent?
- Honeywell Int Inc, Honeywell Int Inc
- What technology area does this patent fall under?
- Primary CPC classification B01D71/32. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Oct 10 2017 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).