Device comprising a cation ion-exchanger for reducing the acidity of motor oil and engine with such device
US-9212577-B2 · Dec 15, 2015 · US
Multi-acid polymers and methods of making the same
US10035144B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10035144-B2 |
| Application number | US-201715591682-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 10, 2017 |
| Priority date | Mar 23, 2016 |
| Publication date | Jul 31, 2018 |
| Grant date | Jul 31, 2018 |
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Abstract
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Multi-acid polymers for use as a fuel cell membrane, for example, have multi-acid monomers that have an imide base and more than two proton conducting groups. The multi-acid polymers are made by reacting a polymer precursor in sulfonyl fluoride or sulfonyl chloride form with a compound with an acid giving group. One example of a multi-acid polymer is: wherein R is one or more units of a non-SO 2 F or non-SO 2 Cl portion of a polymer precursor in sulfonyl fluoride or sulfonyl chloride form.
First claim
Opening claim text (preview).
What is claimed is: 1. A multi-acid polymer having a multi-acid monomer with a following formula: wherein R is one or more units of a non-SO 2 F or non-SO 2 Cl portion of a polymer precursor in sulfonyl fluoride or sulfonyl chloride form. 2. The multi-acid polymer of claim 1 , wherein the polymer precursor is 2-allyloxy-1,1,2,2-tetrafluoro ethane sulfonyl fluoride. 3. The multi-acid polymer of claim 1 , wherein the polymer precursor is 4-(trifluoro vinyl) benzene sulfonyl fluoride. 4. The multi-acid polymer of claim 1 , wherein the polymer precursor is p-styrene sulfonyl fluoride/chloride. 5. The multi-acid polymer of claim 1 , wherein the polymer precursor is perfluoro (3-oxapent-4-ene) sulfonyl fluoride. 6. The multi-acid polymer of claim 1 , wherein the polymer precursor is ethene sulfonyl fluoride. 7. A multi-acid membrane made from the multi-acid polymer of claim 1 . 8. A multi-acid polymer having a multi-acid monomer with a following formula: wherein R is one or more units of a non-SO 2 F or non-SO 2 Cl portion of a polymer precursor in sulfonyl fluoride or sulfonyl chloride form. 9. A multi-acid membrane made from the multi-acid polymer of claim 8 . 10. The multi-acid polymer of claim 8 , wherein the polymer precursor is 2-allyloxy-1,1,2,2-tetrafluoro ethane sulfonyl fluoride. 11. The multi-acid polymer of claim 8 , wherein the polymer precursor is 4-(trifluoro vinyl) benzene sulfonyl fluoride. 12. The multi-acid polymer of claim 8 , wherein the polymer precursor is p-styrene sulfonyl fluoride/chloride. 13. The multi-acid polymer of claim 8 , wherein the polymer precursor is perfluoro (3-oxapent-4-ene) sulfonyl fluoride. 14. The multi-acid polymer of claim 8 , wherein the polymer precursor is ethene sulfonyl fluoride.
Assignees
Inventors
Classifications
in the strongly acidic form · CPC title
Sulfonation; Sulfation · CPC title
modified by chemical after-treatment · CPC title
Introducing phosphorus atoms or phosphorus-containing groups · CPC title
containing fluorine · CPC title
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- What does patent US10035144B2 cover?
- Multi-acid polymers for use as a fuel cell membrane, for example, have multi-acid monomers that have an imide base and more than two proton conducting groups. The multi-acid polymers are made by reacting a polymer precursor in sulfonyl fluoride or sulfonyl chloride form with a compound with an acid giving group. One example of a multi-acid polymer is: wherein R is one…
- Who is the assignee on this patent?
- Nissan North America Inc
- What technology area does this patent fall under?
- Primary CPC classification B01J39/20. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jul 31 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).