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公开(公告)号：US4442173A
公开(公告)日：1984-04-10
申请号：US387682
申请日：1982-06-11
申请人： Shinsuke Takegami , Kaoru Ban , Mitsuru Wakitani
发明人： Shinsuke Takegami , Kaoru Ban , Mitsuru Wakitani
CPC分类号： D01F6/18 , Y10T428/2927 , Y10T428/2967 , Y10T428/2975
摘要： Acrylic fibers consisting of not more than 90 weight % of an acrylonitrile polymer and less than 10 weight % of a water-absorbing resin having a particular cross-linking density, particle diameter and degree of water-swellability, which are excellent in practical properties such as strength, elongation, color fastness, spinnability and water-absorption.
摘要翻译： 由不大于90重量％的丙烯腈聚合物和小于10重量％的具有特定交联密度，粒径和水溶胀度的吸水性树脂组成的丙烯酸纤维，其实际性能如 作为强度，伸长率，色牢度，可纺性和吸水性。
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公开(公告)号：US5783304A
公开(公告)日：1998-07-21
申请号：US796815
申请日：1997-02-06
申请人： Shigeru Nakajima , Mitsuru Wakitani
发明人： Shigeru Nakajima , Mitsuru Wakitani
IPC分类号： D06M11/00 , A61L9/01 , A61L9/16 , B01D53/04 , B01J20/28 , D01F6/18 , D06M11/63 , D06M23/00 , D06M101/00 , D06M101/16 , D06M101/18 , D06M101/28 , D06M101/32 , D02G3/00
CPC分类号： B01J20/28023 , A61L9/01 , A61L9/16 , B01D53/02 , B01J20/28033 , D01F6/18 , D06M11/63 , B01D2253/202 , B01D2253/25 , B01D2257/406 , B01D2257/90 , Y10T428/2913 , Y10T428/2969 , Y10T442/2885
摘要： Disclosed are acidic or basic gas absorptive fiber having both a degree of acidic gas absorption of 70% or higher and a degree of basic gas absorption of 80% or higher, and also fabric comprising the fiber. The fiber and fabric, after having absorbed acidic and basic gases, can easily be restored to its original condition if they are exposed to clean air. The fiber is preferably crosslinked acrylic fiber, which has a specific increase in its nitrogen content resulting from crosslinking with hydrazine, a specific amount of carboxyl groups resulting from modification with nitrile groups, a specific ratio of free carboxyl groups to all carboxyl groups existing therein, and a specific equilibrated pH in water, and which is prepared from acrylic fiber through crosslinking with hydrazine, hydrolysis, and conversion of carboxyl groups therein into metal carboxylate groups. The fiber and fabric are durable to cycle use.
摘要翻译： 公开了酸性气体吸收度为70％以上，碱性气体吸收度为80％以上的酸性或碱性气体吸收性纤维，以及包含纤维的织物。 在吸收酸性和碱性气体后，纤维和织物如果暴露于清洁空气中，可以很容易地恢复到原来的状态。 纤维优选是交联的丙烯酸纤维，其由于与肼交联而产生的氮含量特异性增加，由腈基修饰产生的特定量的羧基，游离羧基与存在于其中的所有羧基的比例， 和水中的特定平衡pH，并且其由丙烯酸纤维通过与肼交联制备，水解和羧基转化为金属羧酸盐基团。 纤维和织物耐用循环使用。
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公开(公告)号：US4562114A
公开(公告)日：1985-12-31
申请号：US702422
申请日：1985-02-14
CPC分类号： D01F6/54 , D01F6/38 , Y10T428/2927 , Y10T428/2975 , Y10T428/2978
摘要： Novel porous water-absorbing acrylic fibers composed of not less than 90 weight % of an acrylonitrile polymer and having dispersed therein less than 10 weight % of a water-absorbing resin particles containing carboxyl groups (represented by --COOX wherein X is H, HN.sub.4 or an alkali-metal) and having a degree of water-swellability of 10-300 cc/g, the particle diameter of which resin is not larger than 0.5.mu. at absolute dryness, the carboxyl groups in the water absorbing resin present at least in the outer layer of the fibers being of the type where X is H, and in the inner portion being of the type where X is NH.sub.4 or an alkali metal, said fibers containing pores not smaller than 0.2.mu. in their largest diameter in the inner layer of the fibers and said fibers having a water holding ratio not lower than 20%. The acrylic fibers provided are novel, porous and water-absorbing, having a stable water-absorbing ability which will not be easily lowered by heat treatment, etc. The fibers are excellent in physical properties such as strength, elongation, etc. and in practical properties such as spinnability, etc. and are greatly improved in dyeability.
摘要翻译： 由不小于90重量％的丙烯腈聚合物组成的新型多孔吸水性丙烯酸纤维，其中分散有少于10重量％的含羧基的吸水性树脂颗粒（由-COOX表示，其中X为H，HN4或 碱金属），其水溶胀度为10-300cc / g，绝对干燥度的树脂的粒径不大于0.5μm，吸水树脂中的羧基至少存在于 纤维的外层是X是H的类型，并且在内部是X是NH 4或碱金属的类型中，所述纤维在其内层中的最大直径中含有不小于0.2μm的孔 所述纤维和所述纤维的保水率不低于20％。 所提供的丙烯酸纤维是新颖的，多孔的和吸水的，具有通过热处理等不容易降低的稳定的吸水能力。纤维的物理性能如强度，伸长率等在实际中是优异的 性能如可纺性等，并且染色性大大提高。
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