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公开(公告)号：US4568506A
公开(公告)日：1986-02-04
申请号：US500229
申请日：1983-06-01
申请人： Tsutomu Kiriyama , Susumu Norota , Yasuhiko Segawa , Shingo Emi , Tadasi Imoto , Toshinori Azumi
发明人： Tsutomu Kiriyama , Susumu Norota , Yasuhiko Segawa , Shingo Emi , Tadasi Imoto , Toshinori Azumi
CPC分类号： D01D5/253 , B01F5/0604 , D01D5/30 , Y10S264/75 , Y10T428/2931 , Y10T428/2973 , Y10T428/2976 , Y10T428/2978 , Y10T428/298
摘要： 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.
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公开(公告)号：US4526735A
公开(公告)日：1985-07-02
申请号：US465339
申请日：1983-02-09
申请人： Susumu Norota , Yasuhiko Segawa , Tsutomu Kiriyama , Shingo Emi , Tadasi Imoto , Tetsuo Yamauchi
发明人： Susumu Norota , Yasuhiko Segawa , Tsutomu Kiriyama , Shingo Emi , Tadasi Imoto , Tetsuo Yamauchi
CPC分类号： B29C47/86 , B29C47/0014 , B29C47/12 , B29C47/862 , B29C47/90 , B29C47/908 , D01D13/00 , D01D4/02 , D01D5/08 , D01F1/02 , D01F6/605 , B29C47/0016 , Y10S264/46
摘要： A process and apparatus for producing a fibrous assembly. At least one fiber-forming polymer is extruded through a spinneret having numerous small openings. The process uses a die equipped with a spinneret having numerous closely spaced small openings and an opening ratio (.alpha.) of at least 30%. At least one fiber-forming polymer in the form of a shaped mass having a specified compression resistance is continuously stuffed into said die. Said shaped mass has a shape such that it measures more in one direction than in another. There is passed through the spinneret an electric current sufficient to give said fiber-forming polymer Joule heat required for cutting said polymer by partitioning members defining the numerous small openings of the spinneret. The cut fiber-forming polymer is taken up as fine streams.The present invention provides ultrathick aromatic polyamide fibers having an average cross-sectional area of about 0.01 mm.sup.2 to about 5 mm.sup.2 and comprising at least one fiber-forming aromatic polyamide and an inorganic or metallic fine powder or a fibrous material.
摘要翻译： 用于生产纤维集合体的方法和设备。 至少一种纤维形成聚合物通过具有许多小孔的喷丝头挤出。 该方法使用装备有具有多个紧密间隔的小开口的喷丝头的模具和至少30％的开口率（α）。 将具有特定抗压性的成形块形式的至少一种纤维形成聚合物连续地填充到所述模具中。 所述成形块具有使得其在一个方向上比另一个方向更多的形状。 通过喷丝头使电流足以使所述纤维形成聚合物焦耳热通过限定喷丝头的许多小开口的分隔构件切割所述聚合物所需的热量。 切割的纤维形成聚合物被吸收为细小的流。 本发明提供平均横截面积为约0.01mm 2至约5mm 2的超薄芳族聚酰胺纤维，并且包含至少一种成纤芳香族聚酰胺和无机或金属细粉或纤维材料。
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3.发明授权
公开(公告)号：US4444911A
公开(公告)日：1984-04-24
申请号：US495927
申请日：1983-05-19
申请人： Susumu Norota , Yasuhiko Segawa , Shingo Emi
发明人： Susumu Norota , Yasuhiko Segawa , Shingo Emi
CPC分类号： C08J9/125 , D01D5/247 , C08J2377/10 , Y10T428/2975 , Y10T428/2978 , Y10T428/298
摘要： Pneumatic cellular aromatic polyamide articles characterized by(a) being articles prepared substantially from aromatic polyamide.(b) said articles having numerous bubbles at the void ratio in the range of 10 to 95%,(c) said bubbles being substantially enclosed in said articles, and(d) said articles having an average thickness in the range of 0.2 to 10 mm on the cross section made by cutting them at right angles to the longest axis.The present invention provides also a process for the preparation thereof. According to the present invention, there are suitably provided pneumatic cellular aromatic polyamide articles having a high strength and a wide range of void ratio, comparatively heavy thickness, excellent heat resistance and thermal insulation.
摘要翻译： 气动细胞芳族聚酰胺制品的特征在于（a）是基本上由芳族聚酰胺制备的制品。 （b）所述制品在空隙率为10〜95％的范围内具有多个气泡，（c）所述气泡基本上封闭在所述制品中，（d）所述制品的平均厚度为0.2至10 在通过与最长轴成直角切割而制成的横截面上为mm。 本发明还提供了其制备方法。 根据本发明，适合提供具有高强度，宽范围的空隙率，比较厚的厚度，优异的耐热性和绝热性的气动细胞芳族聚酰胺制品。
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4.发明授权
公开(公告)号：US4552810A
公开(公告)日：1985-11-12
申请号：US561251
申请日：1983-12-13
申请人： Susumu Norota , Yasuhiko Segawa , Shingo Emi
发明人： Susumu Norota , Yasuhiko Segawa , Shingo Emi
CPC分类号： C08J9/125 , D01D5/247 , C08J2377/10 , Y10T428/2975 , Y10T428/2978 , Y10T428/298
摘要： Pneumatic cellular aromatic polyamide articles characterized by(a) being articles prepared substantially from aromatic polyamide.(b) said articles having numerous bubbles at the void ratio in the range of 10 to 95%,(c) said bubbles being substantially enclosed in said articles, and(d) said articles having an average thickness in the range of 0.2 to 10 mm on the cross section made by cutting them at right angles to the longest axis.The present invention provides also a process for the preparation thereof. According to the present invention, there are suitably provided pneumatic cellular aromatic polyamide article having a high strength and a wide range of void ratio, comparatively heavy thickness, excellent heat resistance and thermal insulation.
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公开(公告)号：US4414276A
公开(公告)日：1983-11-08
申请号：US288202
申请日：1981-07-29
申请人： Tsutomu Kiriyama , Susumu Norota , Yasuhiko Segawa , Shingo Emi , Tadasi Imoto , Toshinori Azumi
发明人： Tsutomu Kiriyama , Susumu Norota , Yasuhiko Segawa , Shingo Emi , Tadasi Imoto , Toshinori Azumi
CPC分类号： D01D5/253 , B01F5/0604 , D01D5/30 , Y10S264/75 , Y10T428/2931 , Y10T428/2973 , Y10T428/2976 , Y10T428/2978 , Y10T428/298
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US4310594A
公开(公告)日：1982-01-12
申请号：US165079
申请日：1980-07-01
申请人： Yasuyuki Yamazaki , Shingo Emi , Susumu Norota , Kazuo Takamatu , Tomoyoshi Ono
发明人： Yasuyuki Yamazaki , Shingo Emi , Susumu Norota , Kazuo Takamatu , Tomoyoshi Ono
CPC分类号： D04H13/00 , D04H1/559 , D04H13/02 , D04H3/04 , D04H3/12 , Y10T428/249981 , Y10T428/26 , Y10T428/27 , Y10T428/2922 , Y10T442/621 , Y10T442/629
摘要： A composite sheet structure comprising (A) a nonwoven web composed of (a) continuous filaments of a synthetic resin and (B) a net-like web having intersecting points and being composed of (b) continuous net strands of a mixture consisting of at least two thermoplastic synthetic resins having different melting points, said web (A) and said web (B) being bonded to each other by heating; characterized in that (i) said web (A) has a basis weight of about 2 to about 30 g/m.sup.2, (ii) said web (B) has a basis weight of about 1 to 10 g/m.sup.2, an average net strand diameter of about 1 to about 100 microns, and an average mesh length of up to about 5 mm, and said net strands (b) are composed of at least two resins having melting points differing from each other by at least about 20.degree. C., of which a resin having the lowest melting point has a melting point at least about 20.degree. C. lower than that of said filaments (a) and is present in an amount of about 5 to about 95% by weight based on the weight of said resin mixture, (iii) the amount of said web (A) is about 30 to about 90% by weight based on the total weight of said webs (A) and (B), (iv) said composite sheet structure has a basis weight of about 10 to about 200 g/m.sup.2, and (v) said filaments (a) are partly embraced by said net strands (b) throughout the composite sheet structure.
摘要翻译： 一种复合片材结构，其包含（A）由（a）合成树脂的连续长丝组成的非织造纤维网和（B）具有交点的网状网，并由（b）由 至少两种具有不同熔点的热塑性合成树脂，所述纤维网（A）和所述纤维网（B）通过加热彼此结合; 其特征在于（i）所述网（A）的定量为约2至约30g / m 2，（ii）所述网（B）的单位面积重量为约1至10g / m 2，平均净股 直径约1至约100微米，平均网眼长度最大约为5毫米，所述网状网（b）由至少两种具有彼此不同熔点至少约20℃的树脂组成。 ，其中具有最低熔点的树脂的熔点比所述长丝（a）的熔点低至少约20℃，并且其存在量为约5至约95重量％，基于 所述树脂混合物，（iii）基于所述网（A）和（B）的总重量，所述网（A）的量为约30至约90重量％，（iv）所述复合片结构具有基础 重量约10至约200g / m 2，和（v）所述细丝（a）在所述复合片材结构中部分地包围所述网状丝束（b）。
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公开(公告)号：US4399084A
公开(公告)日：1983-08-16
申请号：US293269
申请日：1981-08-17
申请人： Yasuhiko Sagawa , Susumu Norota , Tsutomu Kiriyama , Shingo Emi , Tadasi Imoto , Tetsuo Yamauchi
发明人： Yasuhiko Sagawa , Susumu Norota , Tsutomu Kiriyama , Shingo Emi , Tadasi Imoto , Tetsuo Yamauchi
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US5849189A
公开(公告)日：1998-12-15
申请号：US549692
申请日：1995-11-06
申请人： Shingo Emi , Kouji Soga , Satoshi Fukuhara
发明人： Shingo Emi , Kouji Soga , Satoshi Fukuhara
摘要： A hollow fiber blood purifying membrane which is a hollow fiber membrane substantially composed of cellulose acetate, has a substantially non-oriented distribution of cellulose acetate polymer particles on the inner surface of the hollow fibers, has a dense layer with a thickness in the range of 30-1000 nm on both the inner and outer surface of the hollow fibers and a porous structure which is substantially uniform at the membrane wall between the two dense layers, and has an in vitro ultrafiltration rate (UFR) of 10 to 50 ml/m.sup.2 .multidot.mmHg.multidot.hr and a (in vivo UFR)/(in vitro UFR) ratio of at least 0.3, a blood plasma albumin permeation blockage of at least 90%, and an in vivo .beta..sub.2 -microglobulin (.beta..sub.2 -MG) sieving coefficient of at least 0.4, as well as a process for its production.
摘要翻译： PCT No.PCT / JP95 / 00339 Sec。 371日期：1995年11月6日 102（e）日期1995年11月6日PCT 1995年3月2日PCT公布。 第WO95 / 24262号公报 日期1995年9月14日作为基本上由乙酸纤维素组成的中空纤维膜的中空纤维血液净化膜在中空纤维的内表面上具有基本上无取向的醋酸纤维素聚合物颗粒分布，具有致密层， 在中空纤维的内表面和外表面上的厚度在30-1000nm的范围内，并且在两个致密层之间的膜壁处基本均匀的多孔结构，并且具有10的体外超滤速率（UFR） 至（体内UFR）/（体外UFR）比至少为0.3ml，血浆白蛋白渗透阻塞至少为90％，体内β2-微球蛋白（β-2-MG） 筛分系数至少为0.4，以及其生产过程。
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9.发明授权Cellulosic polymer, blood-treating device, and process for producing the same 失效纤维素聚合物，血液处理装置及其制造方法
公开(公告)号：US5486606A
公开(公告)日：1996-01-23
申请号：US057094
申请日：1993-05-04
申请人： Shingo Emi , Kyoji Suzuki , Yoshito Ikada
发明人： Shingo Emi , Kyoji Suzuki , Yoshito Ikada
IPC分类号： A61L33/00 , A61M1/18 , B01D67/00 , B01D71/12 , B01D71/22 , C08B11/14 , C08B11/145 , C08B11/15 , C08B15/06 , C08L1/00 , C08L1/08 , B01D61/24 , B01D61/28
摘要： A cellulosic polymer wherein at least a part of the hydroxyl groups of the cellulosic polymer is modified as represented by the following general formula [I]: ##STR1## wherein R.sup.1 and R.sup.2 may be the same or different and each represents a hydrogen atom or a C.sub.1 to C.sub.5 alkyl group, X is a strong negative atomic group, and Y is ##STR2## wherein R.sup.3 and R.sup.4 may be the same or different and each represents a member selected from the group consisting of a hydrogen atom, a C.sub.1 to C.sub.5 alkyl group and a C.sub.3 to C.sub.6 cycloalkyl group, or ##STR3## Y is wherein R.sup.5, R.sup.6 and R.sup.7 may be the same or different and each represents a member selected from the group consisting of a hydrogen atom, a C.sub.1 to C.sub.5 alkyl group, a C.sub.3 to C.sub.6 cycloalkyl group and a C.sub.6 to C.sub.10 aryl group, and n is from 1 to 10. Using the cellulosic polymer, a blood-treating device is assembled.
摘要翻译： 一种纤维素聚合物，其中纤维素聚合物的至少一部分羟基被改性，如以下通式[I]表示：其中R 1和R 2可以相同或不同，并且各自表示氢 原子或C1〜C5烷基，X为强负极性原子团，Y为<，其中R3和R4可以相同或不同，各自表示选自氢原子，C1 C5烷基和C3-C6环烷基，或者Y是其中R5，R6和R7可以相同或不同，并且各自表示选自氢原子，C1-C5烷基 基团，C3至C6环烷基和C6至C10芳基，n为1至10.使用纤维素聚合物组装血液处理装置。
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10.发明授权
公开(公告)号：US5380658A
公开(公告)日：1995-01-10
申请号：US121909
申请日：1993-09-16
申请人： Toshitsugu Matsuki , Noritsugu Saiki , Shingo Emi
发明人： Toshitsugu Matsuki , Noritsugu Saiki , Shingo Emi
IPC分类号： A61K47/48 , C08G79/02 , C12N11/06 , C07K17/00 , G01N33/549
CPC分类号： A61K47/48223 , C08G79/025 , Y10S435/803 , Y10S435/815 , Y10S530/815 , Y10S530/816
摘要： 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.
摘要翻译： 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。
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