Extrusion agent for polyolefins extrudable in the form of fibres
US-2017368731-A1 · Dec 28, 2017 · US
Composition for preparing polysaccharide fibers
US9212301B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9212301-B2 |
| Application number | US-201113333263-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 21, 2011 |
| Priority date | Dec 21, 2011 |
| Publication date | Dec 15, 2015 |
| Grant date | Dec 15, 2015 |
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Abstract
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This invention pertains to a novel solution composition useful for preparing fibers from poly(α(1→3) glucan). The fibers prepared according to the invention, have “cotton-like” properties, are useful in textile applications, and can be produced as continuous filaments on a year-round basis. The solution comprises a 5-20% solids concentration of poly(α(1→3) glucan) in an aqueous alkali metal hydroxide, in particular NaOH at concentration of 2 to 10 weight-%.
First claim
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The invention claimed is: 1. A solution comprising aqueous alkali metal hydroxide and poly(α(1→3) glucan) wherein the solids concentration of poly(α(1→3) glucan) is in the range of 5-20% by weight with respect to the total weight of the solution; and, wherein the concentration of the aqueous alkali metal hydroxide is in the range of 2 to 10%. 2. The solution of claim 1 wherein the alkali metal hydroxide is NaOH. 3. The solution of claim 2…
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- What does patent US9212301B2 cover?
- This invention pertains to a novel solution composition useful for preparing fibers from poly(α(1→3) glucan). The fibers prepared according to the invention, have “cotton-like” properties, are useful in textile applications, and can be produced as continuous filaments on a year-round basis. The solution comprises a 5-20% solids concentration of poly(α(1→3) glucan) in an aqueous alkali metal hyd…
- Who is the assignee on this patent?
- O'Brien John P, Opper Kathleen, Du Pont
- What technology area does this patent fall under?
- Primary CPC classification D01F1/02. Mapped technology areas include Textiles & Paper.
- When was this patent published?
- Publication date Tue Dec 15 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).