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    • 1. 发明授权
    • Immobilization of biologically active substances with a polyphosphazene
carrier
    • 用聚磷腈载体固定生物活性物质
    • US5380658A
    • 1995-01-10
    • US121909
    • 1993-09-16
    • Toshitsugu MatsukiNoritsugu SaikiShingo Emi
    • Toshitsugu MatsukiNoritsugu SaikiShingo Emi
    • A61K47/48C08G79/02C12N11/06C07K17/00G01N33/549
    • A61K47/48223C08G79/025Y10S435/803Y10S435/815Y10S530/815Y10S530/816
    • A phosphazene polymer carrier is prepared that has functional groups capable of binding a biologically active substance such as an enzyme or antibody and groups which are non-reactive and hydrophilic. A bifunctional aldehyde is reacted with primary amino groups of a shaped phosphazene polymer to form side chains having aldehyde groups, an amino group-containing compound is reacted with a portion of the aldehyde groups to produce the groups that are non-reactive and hydrophilic, and aldehyde groups not reacted are capable of binding a biologically active substance. The phosphazene polymer may be crosslinked prior to reacting with the bifunctional aldehyde. In another embodiment, a protecting agent is reacted with a portion of the aldehyde groups to block the aldehyde groups, imino bonds are reduced, a compound having an amino group is reacted with aldehyde groups not blocked to form the groups which are non-reactive and hydrophilic, and the protecting agent is removed to provide aldehyde groups capable of binding a biologically active substance. The non-reactive and hydrophilic groups may also be formed by reacting primary amino groups with formaldehyde or by diazotizing primary amino groups of the polymer followed by hydrolysis to form hydroxyl groups. A biologically active substance immobilized on the polymer can be used to separate a substance that has affinity for the immobilized biologically active substance.
    • 制备具有能够结合生物活性物质如酶或抗体的官能团的磷腈聚合物载体和非反应性和亲水性的基团。 双官能醛与成形磷腈聚合物的伯氨基反应形成具有醛基的侧链,含氨基的化合物与一部分醛基反应产生非反应性和亲水性的基团,以及 未反应的醛基能够结合生物活性物质。 磷腈聚合物可以在与双官能醛反应之前进行交联。 在另一个实施方案中,保护剂与一部分醛基反应以阻断醛基,亚氨基键被还原,具有氨基的化合物与不被阻断的醛基反应形成非反应性基团, 亲水,并除去保护剂以提供能够结合生物活性物质的醛基。 非反应性和亲水性基团也可以通过使伯氨基与甲醛反应或通过重氮化聚合物的伯氨基然后进行水解形成羟基而形成。 固定在聚合物上的生物活性物质可用于分离对固定的生物活性物质具有亲和性的物质。
    • 4. 发明授权
    • Novel assembly of composite fibers
    • 复合纤维的新型装配
    • US4414276A
    • 1983-11-08
    • US288202
    • 1981-07-29
    • Tsutomu KiriyamaSusumu NorotaYasuhiko SegawaShingo EmiTadasi ImotoToshinori Azumi
    • Tsutomu KiriyamaSusumu NorotaYasuhiko SegawaShingo EmiTadasi ImotoToshinori Azumi
    • B01F5/06D01D5/30D01D3/00D01D5/10D01D5/20D01D5/28D02G3/04
    • D01D5/253B01F5/0604D01D5/30Y10S264/75Y10T428/2931Y10T428/2973Y10T428/2976Y10T428/2978Y10T428/298
    • An assembly of fibers composed of at least two dissimilar fiber-forming polymers, characterized by the fact that(1) it consists of numerous fibers,(2) at least 90% of said fibers have a non-circular cross-sectional shape,(3) the cross sections of at least 50% of said fibers differ from each other in at least one of shape and size, and(4) at least 50% of said fibers each have in their cross section taken at right angles to the fiber axis at least two side-by-side coalesced blocks of at least two dissimilar fiber-forming polymer phases with at least a part thereof being exposed to the peripheral surface of the fiber, at least one of the number, shape and size of the blocks varying from fiber to fiber. The assembly of fibers can be produced by extruding a molten macroblend composed of many molten phases of at least two dissimilar fiber-forming polymers through a mesh spinneret having many small openings; and taking up the extrudates from the small openings while cooling them by supplying a cooling fluid to the extrusion surface of said spinneret or to its neighborhood, whereby said extrudates are converted into numerous separated fine fibrous streams and solidified; characterized in that said macroblend is prepared by coalescing many distinct molten phases of at least two dissimilar polymers in such a manner that in a phantom cross section of the molten macroblend taken parallel to the spinneret, there exist many effective continuous boundary lines between the molten phases of dissimilar polymers each of which lines has a length larger than one-fourth of the length of a partitioning member which defines one small opening in the spinneret, whereby said many boundary lines are cut with the partitioning members in the spinneret.
    • 由至少两种异纤维形成聚合物组成的纤维组合物,其特征在于:(1)它由许多纤维组成,(2)至少90%的所述纤维具有非圆形横截面形状, 3)所述纤维的至少50%的横截面在至少一种形状和尺寸上彼此不同,和(4)至少50%的所述纤维各自具有与纤维成直角的横截面 轴至少两个并排聚结的至少两个不同纤维形成聚合物相的块,其至少一部分暴露于纤维的周边表面,块的数量,形状和尺寸中的至少一个 从纤维变为纤维。 纤维的组装可以通过将具有许多小孔的网眼喷丝头挤出由至少两种不同纤维形成聚合物的许多熔融相组成的熔融大孔混合物来制造; 并通过将冷却流体供应到所述喷丝头的挤出表面或其附近来从小开口处取出挤出物,由此将所述挤出物转化成许多分离的细纤维流并固化; 其特征在于,所述大型共混物通过以至少两种不同的聚合物的许多不同的熔融相聚结来制备,使得在平行于喷丝头的熔融大混合物的幻影横截面中,在熔融相之间存在许多有效的连续边界线 不同的聚合物,其中每条线的长度大于在喷丝板中限定一个小开口的分隔件的长度的四分之一,由此在喷丝头中用分隔件切割所述许多边界线。
    • 5. 发明授权
    • Process for producing a fibrous assembly
    • 纤维集合体的制造方法
    • US4399084A
    • 1983-08-16
    • US293269
    • 1981-08-17
    • Yasuhiko SagawaSusumu NorotaTsutomu KiriyamaShingo EmiTadasi ImotoTetsuo Yamauchi
    • Yasuhiko SagawaSusumu NorotaTsutomu KiriyamaShingo EmiTadasi ImotoTetsuo Yamauchi
    • D01D4/02D01D5/088D01D5/20D01F6/60H05B1/00
    • D01D5/20D01D4/02D01D5/088D01F6/605
    • The present invention provides a process for producing a fibrous assembly, which comprises extruding a melt of a fiber-forming polymer through a mesh spinneret, said spinneret including many closely arranged small openings and having an opening ratio (.alpha.), represented by the following formula, of at least about 10% ##EQU1## V.sub.a is the total apparent volume of the spinneret which is taken within a unit area of its mesh portion, and V.sub.f is the total volume of partitioning members defining the small openings which is taken within a unit area of the mesh portion of the spinneret; said extrusion being carried out while generating Joule heat in the partitioning members of the spinneret and cooling the vicinity of the extrusion surface of the spinneret by supplying a cooling fluid, whereby the melt is stably converted into fine streams by the partitioning members; and taking up and solidifying the fine streams; and also provides the process wherein the extrusion surface of the spinneret is turned upward so that the normal vector of the extruding surface is reverse to the direction of gravity, and the fine streams extruded from the extrusion surface are taken up against gravity.The present invention provides a molding apparatus for production of a fibrous assembly having a mesh spinneret which has many closely arranged small openings having an opening ratio .alpha. defined by the above formula of at least 10% and the extrusion surface of the spinneret being turned upwardly such that the normal vector of the extrusion surface is reverse to the direction of gravity.
    • 本发明提供一种纤维集合体的制造方法,该方法包括通过网眼喷丝头挤出成纤聚合物的熔体,所述喷丝头包括许多紧密排列的小孔,并具有开口率(α),由下式 ,至少约10%,是在其网眼部分的单位面积内拍摄的喷丝头的总表观体积,Vf是限定在单位内的小开口的分隔构件的总体积 喷丝板网部分的面积; 所述挤出是在喷丝板的分隔件中产生焦耳热并且通过供应冷却流体冷却喷丝板的挤压表面附近而进行的,从而通过分隔件稳定地将熔体转化成细流; 捡起和凝固细流; 并且还提供了其中喷丝板的挤出表面向上转动使得挤出表面的法向矢量与重力方向相反的过程,并且从挤压表面挤出的细流被克服重力。 本发明提供了一种用于生产具有网眼喷丝头的纤维组件的模制设备,其具有许多紧密排列的小开口,其具有由上述公式定义的至少10%的开口比α,并且喷丝头的挤出表面向上转动, 挤压表面的法向量与重力方向相反。
    • 6. 发明授权
    • Fibrous composite having elasticity
    • 具有弹性的纤维复合材料
    • US4296163A
    • 1981-10-20
    • US59238
    • 1979-07-20
    • Shingo EmiNoritsugu Saiki
    • Shingo EmiNoritsugu Saiki
    • B32B5/04D04H3/16D04H13/00B32B7/02
    • B32B5/04D04H13/00D04H3/16Y10T428/24942Y10T428/24992Y10T442/197
    • A fibrous composite comprising a coalesced assembly of (A) a sheet-like mesh structure composed of fibers of a synthetic elastomeric polymer, the individual fibers being interconnected at random in irregular spaced-apart relationship thereby forming a number of meshes of different shapes and sizes, said mesh structure having a recovery ratio after 10% stretch of at least 70% in two arbitrarily selected, mutually perpendicular directions on the plane of said mesh structure, and (B) a mat-, web- or sheet-like fibrous structure composed of short or long fibers, said fibrous structure having a recovery ratio after 10% stretch of less than 50% in at least one arbitrarily selected direction. An elastic fibrous composite of this invention is suitable as various apparel base materials and industrial materials such as filter clothes, adsorbents, and heat insulating materials.
    • 一种纤维复合材料,其包含(A)由合成弹性体聚合物的纤维构成的片状网状结构的聚结组件,所述各个纤维以不规则的间隔关系随机互连,从而形成不同形状和尺寸的多个网格 所述网状结构在所述网状结构的平面上的两个任意选择的,相互垂直的方向上具有至少70%的10%拉伸后的回收率,和(B)由所述网状结构的纤维网或片状纤维结构体组成 的短纤维或长纤维,所述纤维结构体在至少一个任意选择的方向上具有小于50%的10%拉伸后的回收率。 本发明的弹性纤维复合材料适用于各种服装基材和工业材料如过滤衣,吸附剂和绝热材料。
    • 7. 发明授权
    • Pipe forming apparatus and method
    • 管道成型设备及方法
    • US06339946B1
    • 2002-01-22
    • US09433968
    • 1999-11-04
    • Michio YamashitaHideo AbeYoshiharu DaikuzonoShingo EmiNobuo Tomizawa
    • Michio YamashitaHideo AbeYoshiharu DaikuzonoShingo EmiNobuo Tomizawa
    • B21D514
    • B21C37/08B21C37/0811B21C37/0815B21D5/14Y10T29/49826
    • In a pipe forming process using bending rolls, load applied to an upper roll is reduced to suppress the deflection of the upper roll, thereby suppressing creation of large end gap at the longitudinal center of the pipe, thus enabling production of high-strength, thick-walled elongated pipes. This is achieved either by (1) setting the roll spacing L between lower rolls to a value greater than the sum of the diameter Dwu of the upper roll 34 and the diameter Dwl of each of the lower rolls 32, and setting the amount S of tightening of the upper roll 34 with respect to the lower rolls 32 to a value greater than the radius Rwl of each of the plural rolls; or by (2) effecting pipe forming work on the sheet material such that the spacing L of the lower rolls 32 satisfies the following condition: (Dp+Dwl)>L≧0.85(Dp+Dwl), where Dp represents the outside diameter of the product pipe and Dwl represents the diameter of one of the plural rolls; or by (3) preparing the sheet material having leading and trailing bent end regions bent beforehand over a length not smaller than ⅕ of the entire circumference of the pipe to be produced; and effecting bending by the bending rolls such that the length of the regions bent by the bending rolls is less than ⅗ the entire circumference of the pipe.
    • 在使用弯辊的管形成工序中,施加在上辊上的负荷减小以抑制上辊的挠曲,从而抑制管的纵向中心产生大的端部间隙,从而能够生产高强度, 壁式细长管。 这通过以下方式实现:(1)将下辊之间的辊间距L设定为大于上辊34的直径Dwu与下辊32的直径Dwl之和的值,并将 将上辊34相对于下辊32紧固到大于多个辊中的每一个的半径Rwl的值; 或者通过(2)在片材上进行管形成工作,使得下辊32的间隔L满足以下条件:其中Dp表示产品管的外径,Dwl表示多个辊中的一个的直径; 或者(3)制备具有预弯曲的前后弯曲端部区域的片材,其长度不得小于要制造的管的整个圆周的长度; 并且通过弯曲辊进行弯曲,使得弯曲辊弯曲的区域的长度小于管道整个圆周的长度。
    • 8. 发明授权
    • Selectively permeable hollow fiber membrane and process for producing
same
    • 选择性渗透性中空纤维膜及其制造方法
    • US6013182A
    • 2000-01-11
    • US837475
    • 1997-04-18
    • Shingo EmiKouzi SogaShoji Mizutani
    • Shingo EmiKouzi SogaShoji Mizutani
    • B01D69/02B01D69/08B01D71/16B01D39/00
    • B01D71/16B01D69/02B01D69/08
    • A selectively permeable hollow fiber membrane for blood dialysis consisting substantially of a cellulose derivative, which has at least a dense layer on the innermost side and a porous layer of greater void percentage on the outside, and a process for producing the selectively permeable hollow fiber membrane consisting substantially of a cellulose derivative, which comprises extruding a spinning solution containing a polymer consisting substantially of a cellulose derivative dissolved in an organic solvent, from an annular slit into a filamentous form, while simultaneously introducing a core material solution with a water content of at least 50 wt % into the extruded filamentous body, and then immersing the filamentous body into a coagulating solution after passing it through a gas.
    • 用于血液透析的选择性渗透性中空纤维膜,其基本上由在最内侧至少具有致密层的纤维素衍生物和在外部具有较大空隙率的多孔层组成,以及用于制备选择性渗透性中空纤维膜的方法 其基本上由纤维素衍生物组成,其包括将包含基本上由溶解在有机溶剂中的纤维素衍生物组成的聚合物的纺丝溶液从环形狭缝挤出成丝状,同时引入水含量为 至少50重量%进入挤出的丝状体,然后将丝状体在通过气体后浸入凝固溶液中。