Polymers, the process for the synthesis thereof and compositions comprising same
US-9217056-B2 · Dec 22, 2015 · US
Process for preparing a polymer having a 2,5-furandicarboxylate moiety within the polymer backbone and such (co)polymers
US9567431B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9567431-B2 |
| Application number | US-200913142614-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 30, 2009 |
| Priority date | Dec 30, 2008 |
| Publication date | Feb 14, 2017 |
| Grant date | Feb 14, 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 process for preparing a polymer having a 2,5-furandicarboxylate moiety within the polymer backbone and having a number average molecular weight of at least 10,000 (as determined by GPC based on polystyrene standards) includes a first step where a prepolymer is made having the 2,5-furandicarboxylate moiety within the polymer backbone, followed in a second step by a polycondensation reaction. Polymers so produced may have a 2,5-furandicarboxylate moiety within the polymer backbone, and having a number average molecular weight of at least 20,000 (as determined by GPC based on styrene standards), and an absorbance as a 5 mg/mL solution in a dichloromethane:hexafluoroisopropanol 8:2 at 400 nm of below 0.05.
First claim
Opening claim text (preview).
The invention claimed is: 1. A polymer having a 2,5-furandicarboxylate moiety within the polymer backbone, and having a number average molecular weight of at least 20,000 (as determined by GPC based on styrene standards), and an absorbance as a 5 mg/mL solution in a dichloromethane:hexafluoroisopropanol 8:2 at 400 nm of below 0.05, the polymer being poly(ethylene 2,5-furan-dicarboxylate). 2. The polymer according to claim 1 , having a number average molecular weight of at least 20,000, as determined by GPC using an HPLC system and a chloroform/2-chlorophenol mixture as eluent. 3. The polymer according to claim 2 , wherein the GPC measurements were performed on a Merck-Hitachi LaChrom HPLC system equipped with two PLgel 10 μm MIXED-C(300*7.5 mm) columns wherein a chloroform:2-chlorophenol 7:3 solvent mixture was used as eluent.
Assignees
Inventors
Classifications
Solid-state polycondensation · CPC title
Dicarboxylic acids and dihydroxy compounds · CPC title
derived from polycarboxylic acids and polyhydroxy compounds · CPC title
Acids containing aromatic rings · CPC title
Phosphorus bound to oxygen only · 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 US9567431B2 cover?
- A process for preparing a polymer having a 2,5-furandicarboxylate moiety within the polymer backbone and having a number average molecular weight of at least 10,000 (as determined by GPC based on polystyrene standards) includes a first step where a prepolymer is made having the 2,5-furandicarboxylate moiety within the polymer backbone, followed in a second step by a polycondensation reaction. P…
- Who is the assignee on this patent?
- Sipos Laszlo, Furanix Technologies Bv
- What technology area does this patent fall under?
- Primary CPC classification C08G63/85. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 14 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).