(JP6608365) Cellulose fibers 机翻标题: 暂无翻译,请尝试点击翻译按钮。

源语言标题
(JP6608365) Cellulose fibers
公开号/公开日
JP6608365JP2016533440 / 2019-11-202016-10-27
申请号/申请日
JP2016543463 / 2014-09-23
发明人
Duffy, AndreaKettlewell, Graeme;
申请人
SPECIALITY FIBRES & MATERIALS;
主分类号
IPC分类号
A01N-025/34 A01N-059/16 A01P-001/00 A61L-015/28 D06M-011/83 D06M-015/356 D06M-023/08
摘要
(JP6608365) A method of producing cellulose fibres impregnated with metal nanoparticles, particularly silver nanoparticles. The method comprises swelling cellulose fibres in an aqueous alkali solution (e.g. NaOH (aq)). The swollen cellulose fibres are removed from the aqueous alkali solution and mixed with an aqueous solution of a metal salt (e.g. AgNO3) and a polymer solution so as to impregnate the fibres with metal nanoparticles. The swollen cellulose fibres impregnated with metal nanoparticles are then removed from the solution. The invention further relates to the composition of cellulose fibres impregnated with metal nanoparticles and an absorbent material (e.g. wound dressing) comprising a blend of cellulose fibres impregnated with metal nanoparticles with at least one other type of fibre.  (From US2016208430 A1)
机翻摘要
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地址
代理人
(JP6608365) MYOSHI HIDEKAZU Reg. Nb: 100083806 ITO MASAKAZU Reg. Nb: 100095500 HARA HIROKO Reg. Nb: 100111235 Kazushi Obuchi Reg. Nb: 100195257
代理机构
;
优先权号
2013GB-0016867 2014WO-GB52894
主权利要求
(JP6608365) 1. Swelling the cellulose fibers in an aqueous alkali solution in steps, the swollen cellulosic fibers in an aqueous alkali solution and removed from, the swelling step including residues from the alkaline aqueous solution, swollen cellulosic fibers, aqueous solution of metal salt by mixing with the polymer solution and, fibers impregnated with a metal nanoparticle dispersion step, which is impregnated with metal nanoparticles, the swollen cellulosic fibers includes a step of removing from the solution of, wherein the aqueous alkali solution has a hydroxide Group 1 and Group 1 carbonate and/or bicarbonate and a salt, metal nanoparticles are impregnated in a method for producing a cellulose fiber. 2. Wherein the metal is, silver, copper, zinc, selenium, gold, cobalt, nickel, zirconium, molybdenum, gallium, or iron, or any combination of these, method according to claim 1. 3. Wherein the metal is silver, method according to claim 1 or 2. 4. Wherein the aqueous alkali solution, tetraalkylammonium hydroxide, a diamine or monoamine, and selected from the group consisting N- methylmorpholine oxide (NMMO) compound, or a mixture of any further comprises LiCl, method according to any one of claims 1-3. 5. The cellulose fibers in an aqueous alkali solution to 20 Kpse-120 degree Celsius of temperature further comprises the step of incubating, method according to any one of claims 1-4. 6. Wherein said polymer, polyamide, polyimide, polyethylene imine, polyvinyl alcohol, pectin, albumin, gelatin, carrageenan, rubber, cellulose or its derivatives, poly (vinyl pyrrolidone N -), poly (caprolactam N -), or a mixture of these, of any one of claims 1-5. 7. Wherein the polymer is poly (vinyl pyrrolidone N -), method according to claim 6. 8. Aqueous solution of metal salt, the polymer solution, the mixture of cellulosic fibers and swelling 20 Kpse-120 at a temperature of further comprising the step of incubation, of any one of claims 1-7. 9. Which is impregnated with metal nanoparticles, the swollen cellulosic fibers after removal from the solution, which is impregnated with metal nanoparticles, the swollen cellulosic fibers further comprises the steps of washing, of any one of claims 1-8. 10. Wherein the fiber by washing with an organic solvent, the retraction of the fiber, method according to claim 9. 11. Of the metal nano-particles impregnated with cellulose fibers further comprises the step of drying, method according to any one of claims 1-10. 12. Wherein said cellulose fibers are lyocell fibers, method according to any one of claims 1-11. 13. Can be manufactured by a method according to any one of claims 1-12, cellulosic material impregnated with metal nanoparticles. 14. Of the metal nano-particles are impregnated with a concentration of more than 1.5 w/w %, according to claim 13 cellulose fibers. 15. Wherein the metal nanoparticles have an average particle size is 5-50 nm, the cellulose fibers according to claim 13 or 14. 16. The metal oxide and/or metal carbonates are further impregnated, of any one of claims 13-15 of cellulose fiber. 17. Wherein the metal is silver, any one of claims 13-16 cellulose fibers. 18. Is an additional impregnation of the polymer, the cellulose fibers of any one of claims 13-17. 19. Wherein the polymer is poly (vinyl pyrrolidone N -), according to claim 18 cellulose fibers. 20. (a) 0.5 g 37°C in water at 50 ml cellulosic fibers of the incubating; and (b) thereafter EVERY, 2 ml of the collected liquid UV-Vis was analyzed by measuring the metal content, is replaced with fresh water to the liquid collected in accordance with the method comprising the steps of measuring the rate of release of the metal, at least 5 at least 0.5 g for at least 30 ppm/per day per fiber of, wherein the cellulose fibers of any one of claims 13-19. 21. Wherein the fiber, in the outer surface of the hollow fiber has a surface, wherein the metal nano particles, and the surface of the inner hole and outer fibers being located both, of the cellulose fibers of any one of claims 13-20. 22. Wherein said cellulose fibers are lyocell fibers, cellulose fibers of any one of claims 13-21. 23. Any one of claims 13-22 cellulose fibers, at least one other type of 1 comprising a blend of fibers, absorbent material. 24. Wherein the other types of fibers, alginic acid, modified cellulose, modified chitosan, guar gum, carrageenan, pectin, starch, polyacrylates or copolymers thereof, polyethylene oxide or polyacrylamide, or a mixture of these fibers in the form of a gel-based, and/or polyester, polyethylene, polypropylene, polyamide, cellulose, thermoplastic bi-component fiber, glass fiber, or a mixture thereof in such a manner that an ungelled microcomputerbased, according to claim 23 Absorptives. 25. 2-30 w/w % which is impregnated with metal nanoparticles and cellulose fibers, lyocell fibers and of 5-30 w/w %, which comprises a blend of 40-90 w/w % CES ofHBA, according to claim 23 or 24 absorber. 26. 2-20 w/w % is obtained by impregnating a metal nano particles of cellulose fibers, lyocell fibers and of 10-30 w/w %, comprising a blend of fibers of 50-90 w/w % CMC, according to claim 23 or 24 Absorptives. 27. Based on the total weight of the fiber blend is greater than 0.2 w/w % including but not limited to, any one of claims 23-26 of superabsorbent material. 28. Wherein the absorbing material is formed, the liquid of greater than 1 15/gram of absorbent having the absorption material, any one of claims 23-27 of superabsorbent material. 29. Any one of claims 23-28 of absorbent of the absorbent material. 30. Wherein the wound dressing of absorbent, the absorbent article according to claim 29. 31. Based on the total weight of the fiber blend comprises the metal 0.5-5 w/w %, according to claim 29 or 30 absorbent article.
法律状态
GRANTED
专利类型码
B2A
国别省市代码
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