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1. 发明授权

US4734112A Liquid membrane 失效
标题翻译：液膜
公开(公告)号：US4734112A
公开(公告)日：1988-03-29
申请号：US781602
申请日：1985-09-30
申请人： Koichi Okita , Shinichi Toyooka , Shigeru Asako , Katsuya Yamada
发明人： Koichi Okita , Shinichi Toyooka , Shigeru Asako , Katsuya Yamada
IPC分类号： B01D53/22 , B01D61/38 , B01D67/00 , B01D69/00 , B01D69/12 , B01D13/00
CPC分类号： B01D67/0086 , B01D61/38 , B01D67/0088 , B01D69/00 , B01D69/127
摘要： A liquid membrane is disclosed, which comprises a solvent, an active species capable of facilitated transport of a specific gas, and a support for maintaining a liquid body which has a mixture of said solvent and active species dissolved therein, said support being a porous polytetrafluoroethylene film one surface of which is hydrophobic and the other of which is hydrophilic.
摘要翻译：公开了一种液膜，其包括溶剂，能够促进特定气体的输送的活性物质和用于保持液体的载体，所述液体具有溶解有活性物质的混合物，所述载体是多孔聚四氟乙烯膜的一个表面是疏水性的，另一个表面是亲水的。

2. 发明授权

US5252626A Method for treating the surface of a thin porous film material 失效
标题翻译：处理薄多孔膜材料表面的方法
公开(公告)号：US5252626A
公开(公告)日：1993-10-12
申请号：US97
申请日：1993-01-04
申请人： Katsuya Yamada , Koichi Okita , Shin-ichi Toyo-oka , Shigeru Asako
发明人： Katsuya Yamada , Koichi Okita , Shin-ichi Toyo-oka , Shigeru Asako
IPC分类号： B29C59/00 , B29C59/08 , B29C59/16 , B29C67/20 , C08J9/36 , C08J9/38
CPC分类号： B29C59/00 , B29C44/56 , B29C67/205 , B29C59/08 , B29C59/16 , B29K2027/18 , B29K2105/045 , Y10S521/918 , Y10T428/31544
摘要： A method for treating the surface of a thin porous film material of tetrafluoroethylene resin is disclosed, which comprises heating said surface to a temperature higher than the thermal decomposition point of said resin so as to decompose and remove part of said surface. The resulting thin porous film material of tetrafluoroethylene resin has an adhesive surface while retaining the desired pore size, hardness, and degree of penetration of adhesive.

3. 发明授权

US5296510A Method for treating the surface of a thin porous film material of tetrafluoroethylene resin 失效
标题翻译：处理四氟乙烯树脂薄膜材料表面的方法
公开(公告)号：US5296510A
公开(公告)日：1994-03-22
申请号：US515778
申请日：1990-04-26
申请人： Katsuya Yamada , Koichi Okita , Shin-ichi Toyo-oka , Shigeru Asako
发明人： Katsuya Yamada , Koichi Okita , Shin-ichi Toyo-oka , Shigeru Asako
IPC分类号： C08J9/34 , B29C55/00 , B29C59/00 , B29C59/08 , B29C59/16 , B29C65/52 , B29C67/20 , B29C71/02 , C08J9/36 , C08J9/38
CPC分类号： B29C59/00 , B29C44/56 , B29C67/205 , B29C59/08 , B29C59/16 , B29K2027/18 , B29K2105/045 , Y10S521/918
摘要： A method for treating the surface of a thin porous film material of tetrafluoroethylene resin is disclosed, which comprises heating said surface to a temperature higher than the thermal decomposition point of said resin so as to decompose and remove part of said surface. The resulting thin porous film material of tetrafluoroethylene resin has an adhesive surface while retaining the desired pore size, hardness, and degree of penetration of adhesive.
摘要翻译：公开了一种用于处理四氟乙烯树脂的薄多孔膜材料的表面的方法，其包括将所述表面加热至高于所述树脂的热分解点的温度，以分解和去除所述表面的一部分。得到的四氟乙烯树脂薄膜材料具有粘合剂表面，同时保持所需的孔径，硬度和粘合剂的渗透度。

4. 发明授权

US5028597A Antithrombogenic materials 失效
标题翻译：抗血栓形成材料
公开(公告)号：US5028597A
公开(公告)日：1991-07-02
申请号：US515768
申请日：1990-04-13
申请人： Makoto Kodama , Tsukasa Sakai , Keishiro Tsuda , Koichi Okita , Shigeru Asako , Masaharu Komamiya , Hiroshi Oinuma
发明人： Makoto Kodama , Tsukasa Sakai , Keishiro Tsuda , Koichi Okita , Shigeru Asako , Masaharu Komamiya , Hiroshi Oinuma
IPC分类号： A61L33/00 , A61L33/06
CPC分类号： A61L33/0029 , A61L33/062 , Y10S128/08
摘要： An antithrombogenic material is described, comprising an expanded polytetrafluoroethylene base having a collagen layer provided on the surface thereof, and further provided thereon a composite layer of collagen and a mucopolysaccharide, and said collagen is crosslinked with a crosslinking agent.
摘要翻译：描述了抗血栓形成材料，其包括在其表面上具有胶原层的膨胀聚四氟乙烯基底，并且还在其上设置有胶原和粘多糖的复合层，并且所述胶原蛋白与交联剂交联。

5. 发明授权

US5219894A Method for treating the surface of a thin porous film material 失效
标题翻译：处理薄多孔膜材料表面的方法
公开(公告)号：US5219894A
公开(公告)日：1993-06-15
申请号：US951890
申请日：1992-09-28
申请人： Katsuya Yamada , Koichi Okita , Shin-ichi Toyo-oka , Shigeru Asako
发明人： Katsuya Yamada , Koichi Okita , Shin-ichi Toyo-oka , Shigeru Asako
IPC分类号： B29C59/00 , B29C59/08 , B29C59/16 , B29C67/20 , C08J9/36 , C08J9/38
CPC分类号： B29C59/00 , B29C44/56 , B29C67/205 , B29C59/08 , B29C59/16 , B29K2027/18 , B29K2105/045 , Y10S521/918 , Y10T428/31544
摘要： A method for treating the surface of a thin porous film material of tetrafluoroethylene resin is disclosed, which comprises heating said surface to a temperature higher than the thermal decomposition point of said resin so as to decompose and remove part of said surface. The resulting thin porous film material of tetrafluoroethylene resin has an adhesive surface while retaining the desired pore size, hardness, and degree of penetration of adhesive.
摘要翻译：公开了一种用于处理四氟乙烯树脂的薄多孔膜材料的表面的方法，其包括将所述表面加热至高于所述树脂的热分解点的温度，以分解和去除所述表面的一部分。得到的四氟乙烯树脂薄膜材料具有粘合剂表面，同时保持所需的孔径，硬度和粘合剂的渗透度。

6. 发明授权

US4822361A Tubular prosthesis having a composite structure 失效
标题翻译：具有复合结构的管状假体
公开(公告)号：US4822361A
公开(公告)日：1989-04-18
申请号：US945971
申请日：1986-12-24
申请人： Koichi Okita , Shigeru Asako , Katsuya Yamada , Kazuhiro Okabe , Tohru Kashiwagi
发明人： Koichi Okita , Shigeru Asako , Katsuya Yamada , Kazuhiro Okabe , Tohru Kashiwagi
IPC分类号： A61F2/06 , A61L27/16 , A61L27/34 , A61F2/04
CPC分类号： A61L27/34 , A61F2/06 , A61L27/16
摘要： A tubular prosthesis having a composite structure comprising (i) tubular polytetrafluoroethylene having a microfibrous structure comprising small nodes interconnected with fibrils and (ii) materials which can be absorbed by a living body wherein (a) said polytetrafluoroethylene has a greater average fibril length on the outer surface than on the inner surface, and the fibrous structure of said polytetrafluoroethylene varies continuously across the thickness of the tube wall wherein said inner surface has said fibrous structure being predominantly oriented along the axial direction and said outer surface has said fibrous structure being predominantly oriented along the concentric direction; and (b) said materials which can be absorbed by a living body are collagen, at least one of albumin and chitosan, and heparin, and are distributed in such a manner that collagen is present in the portion of the tube wall which is closest to the outer surface thereof while at least one of albumin and chitosan is present in the portion of the tube wall which is closest to the inner surface thereof, and heparin is present in the inner surface of the tube wall.
摘要翻译：一种具有复合结构的管状假体，包括（i）具有微纤维结构的管状聚四氟乙烯，其包含与原纤维互连的小节点和（ii）可被活体吸收的材料，其中（a）所述聚四氟乙烯具有较大的平均原纤维长度所述聚四氟乙烯的纤维结构在所述管壁的厚度上连续变化，其中所述内表面具有主要沿轴向方向的所述纤维结构，并且所述外表面具有主要取向的所述纤维结构沿同心方向; 和（b）可以被活体吸收的所述物质是胶原蛋白，白蛋白和壳聚糖和肝素中的至少一种，并且以这样的方式分布，使得胶管存在于管壁的最接近其外表面，而白蛋白和壳聚糖中的至少一种存在于最靠近其内表面的管壁部分中，并且肝素存在于管壁的内表面中。

7. 发明授权

US4705544A Liquid membrane 失效
标题翻译：液膜
公开(公告)号：US4705544A
公开(公告)日：1987-11-10
申请号：US801723
申请日：1985-11-26
申请人： Koichi Okita , Shinichi Toyooka , Shigeru Asako , Katsuya Yamada
发明人： Koichi Okita , Shinichi Toyooka , Shigeru Asako , Katsuya Yamada
IPC分类号： B01D53/22 , B01D61/38 , B01D67/00 , B01D69/00 , B01D69/12 , C01B13/02 , C01B32/40
CPC分类号： B01D67/0086 , B01D61/38 , B01D69/127 , C01B13/0255 , C01B13/0285 , C01B31/18 , C01B2210/0046
摘要： A liquid membrane is disclosed, which comprises a solvent, an active species capable of performing facilitated transport of a specific gas, and a support for maintaining a liquid mixture of the solvent and the active species, wherein the active species has the structure represented by the following formula: ##STR1##
摘要翻译：公开了一种液膜，其包含溶剂，能够促进特定气体的输送的活性物质和用于保持溶剂和活性物质的液体混合物的载体，其中活性物质具有由以下公式：

8. 发明授权

US4671754A Apparatus for manufacturing porous polytetrafluoroethylene material 失效
标题翻译：多孔聚四氟乙烯材料的制造装置
公开(公告)号：US4671754A
公开(公告)日：1987-06-09
申请号：US814945
申请日：1985-12-31
申请人： Koichi Okita , Shinichi Toyooka , Shigeru Asako , Katsuya Yamada
发明人： Koichi Okita , Shinichi Toyooka , Shigeru Asako , Katsuya Yamada
IPC分类号： B29C35/08 , B29C55/00 , B29C55/06
CPC分类号： B29C55/005 , B29C55/06 , B29C35/08 , B29K2027/18 , B29K2105/04
摘要： Apparatus for manufacturing a porous polytetrafluoroethylene material comprising extruding or rolling or a process consisting of the both an unsintered polytetrafluoroethylene mixture containing a liquid lubricant, and carrying out simultaneously next four steps of (a) evaporating a liquid lubricant, (b) stretching the molded articles in an unsintered condition, (c) sintering the same in a stretched condition, and (d) stretching the same in a sintered condition at an atmospheric temperature of more than 390.degree. C. to obtain mechanical strengths such as a Young's modulus of more than 10000 kg/cm.sup.2, and a matrix tensile strength of more than 1100 kg/cm.sup.2.
摘要翻译：用于制造多孔聚四氟乙烯材料的装置，包括挤出或轧制或由含有液体润滑剂的未烧结的聚四氟乙烯混合物组成的工艺，同时执行以下四个步骤（a）蒸发液体润滑剂，（b）拉伸模塑制品在未烧结的条件下，（c）在拉伸条件下烧结，（d）在大于390℃的大气温度下在烧结条件下拉伸，获得机械强度，例如杨氏模量 10000kg / cm2，基质拉伸强度大于1100kg / cm 2。

9. 发明授权

US4496507A Production of string-like polytetrafluoroethylene 失效
标题翻译：生产线状聚四氟乙烯
公开(公告)号：US4496507A
公开(公告)日：1985-01-29
申请号：US394958
申请日：1982-07-02
申请人： Koichi Okita , Shigeru Asako
发明人： Koichi Okita , Shigeru Asako
IPC分类号： B29C55/00 , B29C59/00 , B29C67/20 , B29K27/18 , C08J9/00 , D01D5/16 , D01D5/24 , D01F6/12 , B29F5/02
CPC分类号： D01F6/12 , B29C67/205 , D01D5/16 , D01D5/24
摘要： A process for producing a tube or rod of a polytetrafluoroethylene is described. The process comprises molding a polytetrafluoroethylene containing a liquid lubricant into a tube or rod by a paste process, removing the liquid lubricant, stretching the tube or rod in the lengthwise direction, and thereafter, by sintering the stretched tube or rod at a temperature of at least 327.degree. C. wherein the stretching of the tube or rod is carried out by the use of at least one pair of heating rolls which are each provided with a plurality of grooves. The process provided uniform stretching making it possible to produce a tube or rod with very small internal diameter.
摘要翻译：对聚四氟乙烯管或棒的制造方法进行说明。该方法包括通过糊剂法将含有液体润滑剂的聚四氟乙烯成型为管或棒，除去液体润滑剂，沿长度方向拉伸管或棒，然后通过在拉伸管或棒处于至少327℃，其中管或棒的拉伸通过使用至少一对加热辊进行，每个加热辊各自设有多个槽。该方法提供均匀的拉伸，使得可以生产具有非常小的内径的管或棒。

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