Method for detecting mutation in target base sequence of nucleic acid, method for selectively inhibiting amplification of nucleic acid, and kits for performing same
US-2025043335-A1 · Feb 6, 2025 · US
Process for making a polyzwitterion or polyzwitterionic acid
US9617388B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9617388-B2 |
| Application number | US-201615282074-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 30, 2016 |
| Priority date | Dec 30, 2013 |
| Publication date | Apr 11, 2017 |
| Grant date | Apr 11, 2017 |
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.
A zwitterionic monomer and corresponding cyclopolymerized polyzwitterion (±) (PZ) (i.e. poly(Z-alt-SO 2 ). Phosophonate ester hydroloysis in PZ gave a pH-responsive polyzwitterionic acid (±) (PZA). The PZA under pH-induced transformation was converted into polyzwitterion/anion (±−) (PZAN) and polyzwitterion/dianion (±=) (PZDAN).
First claim
Opening claim text (preview).
The invention claimed is: 1. A process for making a polyzwitterion or polyzwitterionic acid having the following formula: where n is an integer of 10 or greater, the process comprising: copolymerizing a monomer of formula (I) with SO 2 in the presence of a polymerizing agent, wherein R is a C 1 to C 6 alkyl group or a C 6 -C 12 aryl group or an H group. 2. The process of claim 1 , wherein R is CH 2 CH 3 ; and the number of repeating units n is in the range of 20-1,500. 3. The process of claim 1 , wherein the polymerizing agent is tert-butyl hydroperoxide. 4. The process of claim 1 , further comprising: reacting the polyzwitterion with an acid solution to hydrolyze the P(O)(OR) 2 groups into groups of formula —P(O)(OH) 2 . 5. The process of claim 1 , wherein the polymerizing occurs in a solution of dimethylsulfoxide. 6. The process of claim 1 , wherein the polymerizing agent is azobisisobutyronitrile.
Assignees
Inventors
Classifications
Polysulfones · CPC title
Use of other chemical agents · CPC title
Diallylamine · CPC title
Copolymers of sulfur dioxide with unsaturated organic compounds · CPC title
- C08G75/22Primary
Copolymers of sulfur dioxide with unsaturated aliphatic compounds · 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 US9617388B2 cover?
- A zwitterionic monomer and corresponding cyclopolymerized polyzwitterion (±) (PZ) (i.e. poly(Z-alt-SO 2 ). Phosophonate ester hydroloysis in PZ gave a pH-responsive polyzwitterionic acid (±) (PZA). The PZA under pH-induced transformation was converted into polyzwitterion/anion (±−) (PZAN) and polyzwitterion/dianion (±=) (PZDAN).
- Who is the assignee on this patent?
- Univ King Fahd Pet & Minerals, King Abdulaziz City Sci & Tech
- What technology area does this patent fall under?
- Primary CPC classification C08G75/22. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 11 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).