METHOD FOR THE PRODUCTION OF OXIDIZED CELLULOSE FIBERS, OXIDIZED CELLULOSE FIBER SHEET MATERIALS OR OXIDIZED CELLULOSE NONWOVENS, AND USE THEREOF
    1.
    发明申请
    METHOD FOR THE PRODUCTION OF OXIDIZED CELLULOSE FIBERS, OXIDIZED CELLULOSE FIBER SHEET MATERIALS OR OXIDIZED CELLULOSE NONWOVENS, AND USE THEREOF 审中-公开
    用于生产氧化纤维素纤维,氧化纤维素纤维素材料或氧化纤维素非金属的方法及其用途

    公开(公告)号:US20130244523A1

    公开(公告)日:2013-09-19

    申请号:US13817178

    申请日:2011-07-29

    IPC分类号: D06M23/06

    摘要: A method for the production of at least one of oxidized cellulose fibers, oxidized cellulose fiber sheet materials and oxidized cellulose nonwovens includes introducing at least one of cellulose fibers, cellulose fiber sheet materials and cellulose nonwovens into a reactor. A temperature of the reactor is set in a range from 25° C. to 80° C. Gaseous nitrogen dioxide is introduced into the reactor so as to oxidize the at least one of cellulose fibers, cellulose fiber sheet materials and cellulose nonwovens. A temperature of the reactor is set in a range from 20° C. to less than 160° C. The at least one of oxidized cellulose fibers, oxidized cellulose fiber sheet materials and oxidized cellulose nonwovens are neutralized with at least one base.

    摘要翻译: 生产氧化纤维素纤维,氧化纤维素纤维片材和氧化纤维素无纺布中的至少一种的方法包括将纤维素纤维,纤维素纤维片材和纤维素无纺布中的至少一种引入反应器中。 将反应器的温度设定在25℃至80℃的范围内。将气态二氧化氮引入反应器中以氧化纤维素纤维,纤维素纤维片材和纤维素无纺布中的至少一种。 将反应器的温度设定在20℃至小于160℃的范围内。氧化纤维素纤维,氧化纤维素纤维片材和氧化纤维素无纺布中的至少一种用至少一个碱中和。

    Method for Producing Metal-containing Nanoparticles Enveloped with Polymers and Particles that can be Obtained Therefrom
    5.
    发明申请
    Method for Producing Metal-containing Nanoparticles Enveloped with Polymers and Particles that can be Obtained Therefrom 审中-公开
    生产含有聚合物和颗粒的含金属纳米颗粒的方法

    公开(公告)号:US20120302703A1

    公开(公告)日:2012-11-29

    申请号:US13147146

    申请日:2010-02-01

    摘要: The present invention provides a method to produce metal-containing nanoparticles enveloped with polymers, as well as particles obtainable therefrom.In the method according to the present invention, at least one anionic polymerizable monomer is polymerized in the presence of an anionic macroinitiator at room temperature. Subsequently, an aliphatic or aromatic sulfide is firstly added, followed by a solution of at least one organosoluble metal salt in an aprotic organic solvent and finally a homogeneous reducing agent. The metal cation is hereby reduced to the metal. Metal-containing nanoparticles are formed which are covalently bonded to the growing anionic polymerizates.The metal salts are preferably salts of silver, copper, gold, tin, lead, chrome or zinc, or mixtures thereof. Anionic polymerizable monomers comprise, by way of example, styrene (St), butadiene, isoprene, ethylene oxide, propylene oxide, caprolactone, lactide, glycolide, acrylates, methacrylates, bisacrylates, cyanoacrylates, amides, siloxanes, vinylpyridines or acrylonitrile.The particles according to the present invention are suitable to be used for the antibacterial finishing of polymers in textiles and materials. Furthermore, they are suitable for the production of inks. If the underlying metals are those metals that show plasmon resonance, the particles are suitable to also be applied in sensors which use the plasmon resonance effect.The metal-containing nanoparticles enveloped with polymers which are accessible using the method according to the present invention do not aggregate or agglomerate, and their physical and chemical properties remain unchanged over a long period of time.

    摘要翻译: 本发明提供一种制备包封有聚合物的含金属纳米颗粒的方法,以及由其获得的颗粒。 在根据本发明的方法中,至少一种阴离子可聚合单体在阴离子大分子引发剂的存在下在室温下聚合。 随后,首先加入脂族或芳族硫化物,然后加入至少一种有机溶剂金属盐在非质子有机溶剂中的溶液,最后加入均匀的还原剂。 因此金属阳离子被还原成金属。 形成含金属的纳米颗粒,其与生长的阴离子聚合物共价键合。 金属盐优选为银,铜,金,锡,铅,铬或锌的盐,或其混合物。 阴离子可聚合单体包括例如苯乙烯(St),丁二烯,异戊二烯,环氧乙烷,环氧丙烷,己内酯,丙交酯,乙交酯,丙烯酸酯,甲基丙烯酸酯,双丙烯酸酯,氰基丙烯酸酯,酰胺,硅氧烷,乙烯基吡啶或丙烯腈。 根据本发明的颗粒适合用于织物和材料中聚合物的抗菌整理。 此外,它们适用于油墨的生产。 如果下面的金属是显示等离子体共振的那些金属,则该颗粒也适用于也使用等离子体共振效应的传感器。 用聚合物包裹的含金属纳米颗粒可以使用根据本发明的方法进行接触,不会聚集或附聚,并且其物理和化学性质在长时间内保持不变。