Method of producing an amorphous polyetherimide fiber and heat-resistant fabric
US-9518341-B2 · Dec 13, 2016 · US
Polyetherimide polymer for use as a high heat fiber material
US8940209B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8940209-B2 |
| Application number | US-61144709-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 3, 2009 |
| Priority date | Jul 10, 2006 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
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Abstract
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Various embodiments of polymer fibers comprising a high heat polymer and process for making the polymer fibers are provided. In one embodiment, synthetic polymer fibers comprise polyetherimide polymer that is substantially free of foreign particulate matter greater than about 100 microns in size. A process for producing polymer fiber includes melting polymer comprising polyetherimide to a melt temperature that ranges from about 180-500° C. to form a molten polymer; passing the polyetherimide that is substantially free of foreign particulate matter above about 100 microns in size, through a spinneret comprising a plurality of hole openings to produce a fiber bundle; and cooling the fiber bundle with a cooling medium having a temperature that ranges from about 0° C. to about 80° C.
First claim
Opening claim text (preview).
The invention claimed is: 1. A process for making polymer fiber, the process comprising: melting a polymer consisting of polyetherimide to a melt temperature that ranges from about 180° C. to about 500° C., to produce a molten polyetherimide; passing the molten polyetherimide through a filter with at least one filter screen wherein each of the at least one filter screen has holes greater than about 25 microns; passing the filtered molten polyetherimide through a spinneret comp…
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Textiles & Paper · mapped topic
- D01F6/74Primary
Textiles & Paper · mapped topic
Textiles & Paper · mapped topic
Cross-Sectional Technologies · mapped topic
Operations & Transport · mapped topic
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- What does patent US8940209B2 cover?
- Various embodiments of polymer fibers comprising a high heat polymer and process for making the polymer fibers are provided. In one embodiment, synthetic polymer fibers comprise polyetherimide polymer that is substantially free of foreign particulate matter greater than about 100 microns in size. A process for producing polymer fiber includes melting polymer comprising polyetherimide to a melt …
- Who is the assignee on this patent?
- Dris Irene, Lak Ann Marie, Wojcicki Craig, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification D01F6/74. Mapped technology areas include Textiles & Paper.
- When was this patent published?
- Publication date Tue Jan 27 2015 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).