US2018016742A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018016742-A1 |
| Application number | US-201615547821-A |
| Country | US |
| Kind code | A1 |
| Filing date | Feb 5, 2016 |
| Priority date | Feb 6, 2015 |
| Publication date | Jan 18, 2018 |
| Grant date | — |
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The invention relates to an alkoxylated polyethyleneimine hydrophilically-modified fiber, wherein the alkoxylated polyethyleneimine has a weight average molecular weight of 600 to 25,000 and contains 1 to 40 alkylene oxide units per nitrogen atom. The invention also relates to a method of improving hydrophilicity of fiber comprising impregnating the fiber with an aqueous solution containing an alkoxylated polyethyleneimine, wherein the alkoxylated polyethyleneimine has a weight average molecular weight of 600 to 25,000 and contains 1 to 40 alkylene oxide units per nitrogen atom. The invention also relates to use of the alkoxylated polyethyleneimine in improving hydrophilicity of fiber.
Opening claim text (preview).
1 . An alkoxylated polyethyleneimine hydrophilically-modified fiber, wherein the alkoxylated polyethyleneimine has a weight average molecular weight of 600 to 25,000 and contains 1 to 40 alkylene oxide units per nitrogen atom. 2 . The alkoxylated polyethyleneimine hydrophilically-modified fiber according to claim 1 , wherein the fiber comprises polyamide, polyester, cotton fabric, and combination thereof. 3 . The alkoxylated polyethyleneimine hydrophilically-modified fiber according to claim 1 , wherein the alkoxylated polyethyleneimine has a weight average molecular weight of 2,000 to 20,000. 4 . The alkoxylated polyethyleneimine hydrophilically-modified fiber according to claim 1 , wherein the alkoxylated polyethyleneimine contains 10 to 30, alkylene oxide units per nitrogen atom. 5 . The alkoxylated polyethyleneimine hydrophilically-modified fiber according to claim 1 , wherein the alkoxylated polyethyleneimine comprises ethoxylated polyethyleneimine, propoxylated polyethyleneimine, butoxylated polyethyleneimine, and combination thereof. 6 . (canceled) 7 . The method according to claim 10 , wherein the fiber comprises polyamide, polyester, cotton fabric, and combination thereof. 8 . The method according to claim 10 , wherein the alkoxylated polyethyleneimine has a weight average molecular weight of 2,000 to 20,000. 9 . The method according to claim 10 , wherein the alkoxylated polyethyleneimine contains 10 to 30, alkylene oxide units per nitrogen atom. 10 . A method of improving hydrophilicity of fiber comprising impregnating the fiber with an aqueous solution containing an alkoxylated polyethyleneimine, wherein the alkoxylated polyethyleneimine has a weight average molecular weight of 600 to 25,000 and contains 1 to 40 alkylene oxide units per nitrogen atom. 11 . The method according to claim 10 , wherein the aqueous solution comprises 1-8 g/L alkoxylated polyethyleneimine based on the total weight of the aqueous solution. 12 . The alkoxylated polyethyleneimine hydrophilically-modified fiber according to claim 1 , wherein the alkoxylated polyethyleneimine has a weight average molecular weight of 5,000 to 15,000. 13 . The alkoxylated polyethyleneimine hydrophilically-modified fiber according to claim 1 , wherein the alkoxylated polyethyleneimine contains 18 to 22 alkylene oxide units per nitrogen atom. 14 . The method according to claim 10 , wherein the alkoxylated polyethyleneimine comprises ethoxylated polyethyleneimine, propoxylated polyethyleneimine, butoxylated polyethyleneimine, and combination thereof. 15 . The method according to claim 10 , wherein the alkoxylated polyethyleneimine has a weight average molecular weight of 5,000 to 15,000. 16 . The method according to claim 10 , wherein the alkoxylated polyethyleneimine contains 18 to 22 alkylene oxide units per nitrogen atom. 17 . The method according to claim 10 , wherein the aqueous solution comprises 2.5-6 g/L alkoxylated polyethyleneimine based on the total weight of the aqueous solution.
Polyamines {polyimines} · CPC title
Polyethers (polyacetals D06M15/39) · CPC title
Polyamides · CPC title
Polyesters · CPC title
containing amino groups · CPC title
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