Method for producing perfluoropolyether acyl fluoride
US-10508171-B2 · Dec 17, 2019 · US
Branched perfluorovinyl ether compounds, methods of making the same, and fluoropolymers derived from the branched perfluorovinyl ether compounds
US11326007B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11326007-B2 |
| Application number | US-201917267853-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 27, 2019 |
| Priority date | Aug 30, 2018 |
| Publication date | May 10, 2022 |
| Grant date | May 10, 2022 |
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.
Described herein is method of making branched perfluorinated compounds, specifically (CF 3 ) 2 CFCF(CF 3 )OCF(CF 3 )C(═O)F and (CF 3 ) 2 CFCF(CF 3 )OCF═CF 2 . Also disclosed herein is a fluoropolymer derived from the branched perfluorovinyl ether monomer and methods of making the fluoropolymer.
First claim
Opening claim text (preview).
What is claimed is: 1. A fluoropolymer, wherein the fluoropolymer is derived from a composition comprising a vinyl ether compound of the formula (CF 3 ) 2 CFCF(CF 3 )OCF═CF 2 . 2. The fluoropolymer of claim 1 , wherein the fluoropolymer is further derived from a polymerizable fluorinated olefinic monomer. 3. The fluoropolymer of claim 2 , wherein the polymerizable fluorinated olefinic monomer comprises at least one of tetrafluoroethylene, hexafluoropropylene, vinyl fluoride, vinylidene fluoride, chlorotrifluoroethylene, fluorinated vinyl ether, fluorinated allyl ether, and combinations thereof. 4. The fluoropolymer of claim 1 , wherein the fluoropolymer has a viscosity of less than 10,000 poise as measured by a Brookfield viscometer in accordance with ASTM D 2196-05 at 80° C. 5. The fluoropolymer of claim 1 , wherein the fluoropolymer is perfluorinated. 6. The fluoropolymer of claim 1 , wherein the fluoropolymer is derived from less than 5 mole % of (CF 3 ) 2 CFCF(CF 3 )OCF═CF 2 versus the total moles of monomers used to derive the fluoropolymer. 7. The fluoropolymer of claim 1 , wherein the fluoropolymer is derived from at least 5, mole % (CF 3 ) 2 CFCF(CF 3 )OCF═CF 2 and at most 60 mole % of (CF 3 ) 2 CFCF(CF 3 )OCF═CF 2 versus the total moles of monomers used to derive the fluoropolymer. 8. The fluoropolymer of claim 1 , wherein the fluoropolymer is derived from at least 40 mole % (CF 3 ) 2 CFCF(CF 3 )OCF═CF 2 and at most 95 mole % of (CF 3 ) 2 CFCF(CF 3 )OCF═CF 2 versus the total moles of monomers used to derive the fluoropolymer. 9. The fluoropolymer of claim 1 , wherein the fluoropolymer is partially fluorinated.
Assignees
Inventors
Classifications
containing halogen outside the carboxyl halide group · CPC title
containing halogen · CPC title
- C07C51/58Primary
Preparation of carboxylic acid halides · CPC title
Monomers containing halogen · CPC title
with fluorinated vinyl ethers · 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 US11326007B2 cover?
- Described herein is method of making branched perfluorinated compounds, specifically (CF 3 ) 2 CFCF(CF 3 )OCF(CF 3 )C(═O)F and (CF 3 ) 2 CFCF(CF 3 )OCF═CF 2 . Also disclosed herein is a fluoropolymer derived from the branched perfluorovinyl ether monomer and methods of making the fluoropolymer.
- Who is the assignee on this patent?
- 3M Innovative Properties Co
- What technology area does this patent fall under?
- Primary CPC classification C07C51/58. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 10 2022 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).