Polyether polyol, method for producing polyether polyol, polyester elastomer and polyurethane
US-2017253698-A1 · Sep 7, 2017 · US
Polyalkylene ether glycol composition and method for producing the same
US12215191B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12215191-B2 |
| Application number | US-202117453190-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 2, 2021 |
| Priority date | Jul 2, 2019 |
| Publication date | Feb 4, 2025 |
| Grant date | Feb 4, 2025 |
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 polyalkylene ether glycol composition containing a nitrogen-containing compound. The nitrogen-containing compound constitutes 0.2 to 40 mass ppm of the polyalkylene ether glycol in terms of nitrogen atoms, and the nitrogen-containing compound has a boiling point in a range of −40° C. to 120° C. at atmospheric pressure. An elastic stretchable fiber, a polyurethane, a synthetic leather, or a thermoplastic elastomer containing the polyalkylene ether glycol composition.
First claim
Opening claim text (preview).
The invention claimed is: 1. A polyalkylene ether glycol composition, comprising: a nitrogen-containing compound, wherein the nitrogen-containing compound constitutes 0.2 to 40 mass ppm of the polyalkylene ether glycol in terms of nitrogen atoms, and wherein the nitrogen-containing compound has a boiling point in a range of −40° C. to 120° C. at atmospheric pressure. 2. The polyalkylene ether glycol composition according to claim 1 , wherein the nitrogen-containing compound is at least one selected from the group consisting of an amine and an amide. 3. The polyalkylene ether glycol composition according to claim 1 , wherein the nitrogen-containing compound is an amine having two or more nitrogen atoms. 4. The polyalkylene ether glycol composition according to claim 1 , wherein the nitrogen-containing compound is an anion-exchange resin eluate. 5. The polyalkylene ether glycol composition according to claim 1 , wherein the nitrogen-containing compound has a molecular weight in a range of 17 to 500. 6. The polyalkylene ether glycol composition according to claim 1 , further comprising: tetrahydrofuran, wherein the tetrahydrofuran constitutes 5 to 200 mass ppm of the polyalkylene ether glycol. 7. The polyalkylene ether glycol composition according to claim 1 , having an acetal value in a range of 0.01 to 3.00 mg-KOH/g. 8. The polyalkylene ether glycol composition according to claim 1 , having a peroxide concentration in a range of 0.01 to 200 μg-H 2 O 2 /g of the polyalkylene ether glycol. 9. The polyalkylene ether glycol composition according to claim 1 , having an acid value in a range of 0.02 to 1.00 mg-KOH/g. 10. The polyalkylene ether glycol composition according to claim 1 , having an antioxidant concentration in a range of 10 to 1000 mass ppm of the polyalkylene ether glycol. 11. A method for producing the polyalkylene ether glycol composition according to claim 1 , comprising: decreasing an amount of acetal in the polyalkylene ether glycol composition. 12. The method for producing the polyalkylene ether glycol composition according to claim 11 , wherein the amount of acetal in the polyalkylene ether glycol composition is decreased with a solid catalyst. 13. An elastic stretchable fiber, comprising: the polyalkylene ether glycol composition according to claim 1 . 14. A polyurethane, comprising: the polyalkylene ether glycol composition according to claim 1 . 15. A synthetic leather, comprising: the polyalkylene ether glycol composition according to claim 1 . 16. A thermoplastic elastomer, comprising: the polyalkylene ether glycol composition according to claim 1 .
Assignees
Inventors
Classifications
from polyurethanes · CPC title
Carboxylic acid amides · CPC title
with polyurethanes · CPC title
Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group · CPC title
Polyurethanes · 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 US12215191B2 cover?
- A polyalkylene ether glycol composition containing a nitrogen-containing compound. The nitrogen-containing compound constitutes 0.2 to 40 mass ppm of the polyalkylene ether glycol in terms of nitrogen atoms, and the nitrogen-containing compound has a boiling point in a range of −40° C. to 120° C. at atmospheric pressure. An elastic stretchable fiber, a polyurethane, a synthetic leather, or a th…
- Who is the assignee on this patent?
- Mitsubishi Chem Corp
- What technology area does this patent fall under?
- Primary CPC classification C08G65/30. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 04 2025 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).