NONWOVEN FABRIC AND PROCESS FOR PRODUCING THE SAME
    1.
    发明申请
    NONWOVEN FABRIC AND PROCESS FOR PRODUCING THE SAME 失效
    非织造织物及其制造方法

    公开(公告)号:US20080272520A1

    公开(公告)日:2008-11-06

    申请号:US12168720

    申请日:2008-07-07

    IPC分类号: B29C47/00

    摘要: A process for production of a nonwoven fabric, which comprises a step wherein a thermoplastic polymer is dissolved in a mixed solvent composed of a volatile good solvent and a volatile poor solvent, a step wherein the resulting solution is spun by an electrospinning method and a step wherein a nonwoven fabric accumulated on a collecting sheet is obtained, is employed to provide a nonwoven fabric having a surface area sufficiently large as a matrix for cell culturing in the field of regenerative medicine, with large gaps between filaments and a low apparent density suitable for cell culturing.

    摘要翻译: 一种无纺布的制造方法,其特征在于,包括将热塑性聚合物溶解在由挥发性良溶剂和挥发性不良溶剂组成的混合溶剂中的工序,其中所得溶液通过静电纺丝法和步骤 其中收集在收集片上的无纺织物用于提供表面积足够大的无纺织物作为再生医学领域的细胞培养基质,细丝间隙大,表观密度低 细胞培养。

    Catalyst-supporting fiber structure and method for producing same
    4.
    发明申请
    Catalyst-supporting fiber structure and method for producing same 审中-公开
    催化剂支持纤维结构及其制备方法

    公开(公告)号:US20060223696A1

    公开(公告)日:2006-10-05

    申请号:US10552682

    申请日:2004-04-08

    IPC分类号: B01J31/00

    摘要: A catalyst-supporting fiber structure having a catalyst supported on a fiber constituting a fiber structure having both thorough flexibility and catalyst supporting performance, wherein the fiber has an average fiber diameter of not more than 1 μm, and a fiber having a fiber length of not more than 20 μm is not substantially contained. Since the subject fiber structure is excellent in catalyst-supporting characteristic, for example, it is possible to provide a fiber structure having an extremely high ability to degrade harmful chemicals.

    摘要翻译: 一种催化剂负载纤维结构,其具有负载在构成纤维结构的纤维上的催化剂载体纤维结构,其具有充分的柔性和催化剂支持性能,其中纤维的平均纤维直径不大于1μm,纤维长度不为1μm 实质上不含有超过20个妈妈。 由于本发明的纤维结构体具有优异的催化剂负载特性,例如,可以提供具有极高的降解有害化学物质的能力的纤维结构体。

    Amphoteric ion-permeable composite membrane
    9.
    发明授权
    Amphoteric ion-permeable composite membrane 失效
    两性离子渗透复合膜

    公开(公告)号:US4360434A

    公开(公告)日:1982-11-23

    申请号:US225324

    申请日:1981-01-15

    摘要: An amphoteric ion-permeable composite membrane composed of a microporous substrate, and supported on the substrate, a thin amphoteric ion-exchange film formed of an active amino group-containing polymer which has been interfacially crosslinked at least at the surface portion of the thin film, said membrane being produced by forming a thin layer comprising an active amino group-containing polymer containing 1.0 to 23 milliequivalents/g, as amino equivalent, of an active amino group selected from primary and secondary amino groups and 0 to 18 milliequivalents/g, as amino equivalent, of a tertiary amino group and/or an ammonium salt group per molecule with the total amino content thereof being in the range of 2.0 to 23 milliequivalents/g on the microporous substrate and then contacting the thin layer on the substrate interfacially with a polyfunctional aromatic compound containing at least two functional groups selected from carbonyl halide groups, sulfonyl halide groups, carboxylic acid anhydride groups, sulfonic acid anhydride groups and derivative groups of carboxylic acids and sulfonic acids having equivalent reactivity to the aforesaid halide and anhydride groups.

    摘要翻译: 由微孔基材构成并负载在基板上的两性离子透过性复合膜由至少在薄膜的表面部分进行了界面交联的含活性氨基聚合物形成的薄的两性离子交换膜 所述膜通过形成包含含有选自伯氨基和仲氨基的活性氨基和0至18毫当量/克的作为氨基当量的1.0至23毫当量/克的含有活性氨基的聚合物的薄层, 作为氨基当量的每个分子的叔氨基和/或铵盐基团,其总氨基含量在微孔基材上在2.0至23毫当量/ g的范围内,然后使基底上的薄层与 含有至少两个选自羰基卤基,磺酰卤基,羧酸的官能团的多官能芳族化合物 酸酐基团,磺酸酐基团和与上述卤化物和酸酐基团具有等同反应性的羧酸和磺酸的衍生基团。

    Process for preparation of improved semipermeable composite membranes
    10.
    发明授权
    Process for preparation of improved semipermeable composite membranes 失效
    改良半透膜复合膜的制备方法

    公开(公告)号:US4388189A

    公开(公告)日:1983-06-14

    申请号:US220081

    申请日:1980-12-24

    CPC分类号: B01D69/125 B01D71/60

    摘要: In a process for producing a semipermeable composite membrane which comprises forming on a microporous substrate a thin layer of a polymeric material comprising a polyamino polymer containing at least 1 milliequivalent, per gram of the polymer in the dry state, of active amino groups selected from primary amino groups and secondary amino groups, and thereafter interfacially crosslinking a surface portion of said thin layer with a crosslinking agent having at least two functional groups (a) capable of easily reacting with either the primary or secondary amino groups or both in said polymer; the improvement wherein(1) said polymeric material contains dispersed therein a polyfunctional compound having at least two functional groups (b) substantially incapable of reacting with the primary or secondary amino groups in said polymer at a temperature at which the interfacial crosslinking is carried out, but capable of reacting easily with either the primary or secondary amino groups or both in said polymer at a temperature at least 30.degree. C. higher than said crosslinking temperature, and(2) the interfacially crosslinked thin layer is heated to a temperature at which said polyfunctional compound reacts with the primary or secondary amino groups or both in said polymer.

    摘要翻译: 在一种制备半透膜复合膜的方法中,该方法包括在微孔基材上形成包含聚氨基聚合物的聚合物材料的薄层,所述聚合物材料含有至少1毫当量的每克干燥状态的聚合物,选自主要 氨基和仲氨基,然后用具有至少两个能够容易地与所述聚合物中的伯或仲氨基反应的二官能团(a)的交联剂与所述薄层的表面部分进行界面交联; 改进之处在于(1)所述聚合材料含有分散有至少两个官能团的多官能化合物(b)在进行界面交联的温度下基本上不能与所述聚合物中的伯或仲氨基发生反应, 但能够在高于所述交联温度的至少30℃的温度下容易地与所述聚合物中的伯或仲氨基或两者反应,和(2)将界面交联的薄层加热至所述 多官能化合物与所述聚合物中的伯或仲氨基或两者反应。