专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4385094A Ethylene-vinyl alcohol hollow fiber membrane and method for the production thereof 失效
标题翻译：乙烯 - 乙烯醇中空纤维膜及其制备方法
公开(公告)号：US4385094A
公开(公告)日：1983-05-24
申请号：US142228
申请日：1980-04-21
申请人： Taku Tanaka , Shuzo Yamashita , Hirokuni Tanii , Akira Kubotsu , Syuji Kawai
发明人： Taku Tanaka , Shuzo Yamashita , Hirokuni Tanii , Akira Kubotsu , Syuji Kawai
IPC分类号： B01D69/08 , B01D71/38 , D01D5/24 , D01F6/30 , D01F6/34 , B29D27/04
CPC分类号： B01D69/08 , B01D71/38 , D01D5/24 , D01F6/30 , D01F6/34 , Y10T428/2975
摘要： There is provided a hollow fiber membrane of ethylene-vinyl alcohol copolymer which is produced by a process comprising extruding a spinning solution of an ethylene-vinyl alcohol copolymer in a solvent selected from the group consisting of dimethylsulfoxide, dimethylacetamide, pyrrolidone, N-methylpyrrolidone and mixtures thereof through a hollow fiber spinneret while a liquid coagulant is introduced into a central aperture of said spinneret, passing the spun fiber through a gaseous atmosphere in a manner such that the fiber is drawn 0.5 to 20 times its extrusion rate and then coagulating said fiber in a coagulating bath at a temperature within the range satisfying the following relationship:when 15.ltoreq.C.ltoreq.40, 1/4C+20.ltoreq.T.ltoreq.1/4C+57wherein C denotes the copolymer concentration of the spinning solution (wt. %) and T denotes the coagulation temperature (.degree.C.).The coagulating liquid can be water or a mixture of the same solvent as that of said spinning solution with no less than 20 weight % of water.
摘要翻译：提供了一种乙烯 - 乙烯醇共聚物的中空纤维膜，其通过以下方法制备，该方法包括将乙烯 - 乙烯醇共聚物的纺丝溶液在选自二甲基亚砜，二甲基乙酰胺，吡咯烷酮，N-甲基吡咯烷酮和其混合物通过中空纤维喷丝头，同时将液体凝结剂引入所述喷丝头的中心孔中，使纺丝纤维以气态气氛使纤维以0.5至20倍的挤出速率拉伸，然后使纤维凝结在满足以下关系的范围内的温度下的凝固浴中：当15℃= 40,1 / 4C + 20℃/ 1 / 4C + 57，其中C表示共聚物浓度纺丝溶液（wt。％）和T表示凝固温度（℃）。凝结液可以是水或与所述纺丝溶液相同溶剂的混合物，其含量不得少于20重量％。

2. 发明授权

US4317729A Ethylene-vinyl alcohol copolymer hollow fiber membranes and method of producing same 失效
标题翻译：乙烯 - 乙烯醇共聚物中空纤维膜及其制备方法
公开(公告)号：US4317729A
公开(公告)日：1982-03-02
申请号：US142227
申请日：1980-04-21
申请人： Shuzo Yamashita , Taku Tanaka , Hirokuni Tanii , Akira Kubotsu , Syuji Kawai
发明人： Shuzo Yamashita , Taku Tanaka , Hirokuni Tanii , Akira Kubotsu , Syuji Kawai
IPC分类号： D01F6/04 , B01D69/08 , B01D71/38 , D01D5/24 , D01F6/30 , D01F6/34 , B29D27/04 , D02G3/00
CPC分类号： D01F6/30 , B01D69/08 , B01D71/38 , D01D5/24 , D01F6/34 , Y10T428/2935 , Y10T428/2975
摘要： A hollow fiber membrane made of an ethylene-vinyl alcohol copolymer is provided, which is characterized in that, when observed in a dry state with an electron microscope, the hollow fiber membrane has at least one dense, active layer (or skin layer) on the inside and/or outside surface thereof and further a three-layered structure comprising two layers respectively contacting the inside and outside surfaces and each consisting of a plurality of particles bonded together and having particle sizes of 0.01 to 2 microns and a substantially particle-free homogeneous layer lying between the two layers.A method of producing such hollow fiber membranes is also provided comprising spinning a spinning solution prepared by dissolving an ethylene-vinyl alcohol copolymer in a solvent mainly consisting of dimethyl sulfoxide, dimethylacetamide, pyrrolidone, N-methylpyrrolidone or a mixture of these through a spinneret for hollow fiber production while simultaneously introducing a coagulating liquid through the central aperture of said spinneret, passing the spun fiber through a gaseous atmosphere such that the fiber is drawn to 3 to 30 times its extrusion rate, and coagulating the fiber in a coagulation bath at a temperature within the range specified below:When 15.ltoreq.C.ltoreq.40, -15.ltoreq.T.ltoreq.1/4C+10where C is polymer concentration (weight %) and T is coagulation temperature (.degree.C.).
摘要翻译：提供一种由乙烯 - 乙烯醇共聚物制成的中空纤维膜，其特征在于，当用电子显微镜在干燥状态下观察时，中空纤维膜具有至少一个致密的有源层（或表层）其内部和/或外部表面，并且还包括三层结构，其包括分别接触内表面和外表面的两层，并且各自由粘合在一起并具有0.01至2微米的颗粒尺寸和基本上无颗粒的多个颗粒组成均匀层位于两层之间。还提供了制造这种中空纤维膜的方法，包括将通过将乙烯 - 乙烯醇共聚物溶解在主要由二甲基亚砜，二甲基乙酰胺，吡咯烷酮，N-甲基吡咯烷酮或它们的混合物的溶剂中制备的纺丝溶液通过喷丝头纺丝，中空纤维生产，同时通过所述喷丝头的中心孔引入凝固液，使纺丝纤维通过气态气氛，使得纤维被拉伸至其挤出速率的3至30倍，并将纤维在凝固浴中凝固温度在下面规定的范围内：当15℃/ 40℃时，-15℃= 1 / 4C + 10其中C是聚合物浓度（重量％），T是凝固温度（℃））。

3. 发明授权

US4362677A Method of producing ethylene-vinyl alcohol copolymer hollow fiber membranes 失效
标题翻译：制备乙烯 - 乙烯醇共聚物中空纤维膜的方法
公开(公告)号：US4362677A
公开(公告)日：1982-12-07
申请号：US270503
申请日：1981-06-04
申请人： Shuzo Yamashita , Taku Tanaka , Hirokuni Tanii , Akira Kubotsu , Syuji Kawai
发明人： Shuzo Yamashita , Taku Tanaka , Hirokuni Tanii , Akira Kubotsu , Syuji Kawai
IPC分类号： D01F6/04 , B01D69/08 , B01D71/38 , D01D5/24 , D01F6/30 , D01F6/34 , B29D27/00
CPC分类号： D01F6/30 , B01D69/08 , B01D71/38 , D01D5/24 , D01F6/34 , Y10T428/2935 , Y10T428/2975
摘要： A hollow fiber membrane made of an ethylene-vinyl alcohol copolymer is provided, which is characterized in that, when observed in a dry state with an electron microscope, the hollow fiber membrane has at least one dense, active layer (or skin layer) on the inside and/or outside surface thereof and further a three-layered structure comprising two layers respectively contacting the inside and outside surfaces and each consisting of a plurality of particles bonded together and having particle sizes of 0.01 to 2 microns and a substantially particle-free homogeneous layer lying between the two layers.A method of producing such hollow fiber membranes is also provided comprising spinning a spinning solution prepared by dissolving an ethylene-vinyl alcohol copolymer in a solvent mainly consisting of dimethyl sulfoxide, dimethylacetamide, pyrrolidone, N-methylpyrrolidone or a mixture of these through a spinneret for hollow fiber production while simultaneously introducing a coagulating liquid through the central aperture of said spinneret, passing the spun fiber through a gaseous atmosphere such that the fiber is drawn to 3 to 30 times its original length, and coagulating the fiber in a coagulation bath at a temperature within the range specified below:When 15.ltoreq.C.ltoreq.40, -15.ltoreq.T.ltoreq.1/4C+10where C is polymer concentration (weight %) and T is coagulation temperature (.degree.C.).
摘要翻译：提供一种由乙烯 - 乙烯醇共聚物制成的中空纤维膜，其特征在于，当用电子显微镜在干燥状态下观察时，中空纤维膜具有至少一个致密的有源层（或表层）其内部和/或外部表面，并且还包括三层结构，其包括分别接触内表面和外表面的两层，并且各自由粘合在一起并具有0.01至2微米的颗粒尺寸和基本上无颗粒的多个颗粒组成均匀层位于两层之间。还提供了制造这种中空纤维膜的方法，包括将通过将乙烯 - 乙烯醇共聚物溶解在主要由二甲基亚砜，二甲基乙酰胺，吡咯烷酮，N-甲基吡咯烷酮或它们的混合物的溶剂中制备的纺丝溶液通过喷丝头纺丝中空纤维生产，同时通过所述喷丝头的中心孔引入凝固液，使纺丝纤维通过气态气氛，使得纤维被拉伸至其原始长度的3至30倍，并将纤维在凝固浴中凝固温度在下面规定的范围内：当15℃/ 40℃时，-15℃= 1 / 4C + 10其中C是聚合物浓度（重量％），T是凝固温度（℃））。

4. 发明授权

US4269713A Ethylene-vinyl alcohol copolymer membrane and a method for producing the same 失效
标题翻译：乙烯 - 乙烯醇共聚物膜及其制备方法
公开(公告)号：US4269713A
公开(公告)日：1981-05-26
申请号：US71671
申请日：1979-08-31
申请人： Shuzo Yamashita , Syuji Kawai , Hirokuni Tanii , Koichi Takakura
发明人： Shuzo Yamashita , Syuji Kawai , Hirokuni Tanii , Koichi Takakura
IPC分类号： B01D67/00 , B01D69/02 , B01D69/08 , B01D71/38 , B01D39/18 , B01D13/00 , B01D31/00
CPC分类号： B01D71/38 , B01D67/0009 , B01D69/02 , B01D69/08 , B01D2323/12 , B01D2325/02 , Y10T428/2975
摘要： There is described an ethylene-vinyl alcohol copolymer membrane comprising at least a skin layer on its surface and a porous layer supporting the skin layer. The porous layer, when the membrane is observed in the dry state with an electron microscope, contains vacuoles or voids, which present a mono- or multi-layer structure and have straight-line lengths corresponding to 20-99% of the whole thickness of the membrane. In addition, the polymer portion of the porous layer has micropores with an average pore diameter of 0.1-5 microns and the membrane has a porosity of 60-90%.
摘要翻译：描述了在其表面上至少包含表层的乙烯 - 乙烯醇共聚物膜和支撑表皮层的多孔层。当用电子显微镜在干燥状态下观察膜时，多孔层包含空泡或空隙，其呈现单层或多层结构，并且具有对应于整个厚度的20-99％的直线长度膜。此外，多孔层的聚合物部分具有平均孔径为0.1-5微米的微孔，并且膜具有60-90％的孔隙率。

5. 发明授权

US4231877A Blood dialyzer 失效
标题翻译：血液透析器
公开(公告)号：US4231877A
公开(公告)日：1980-11-04
申请号：US910462
申请日：1978-05-30
申请人： Kazuhisa Yamauchi , Taku Tanaka , Syuji Kawai , Hirokuni Tanii
发明人： Kazuhisa Yamauchi , Taku Tanaka , Syuji Kawai , Hirokuni Tanii
IPC分类号： A61M1/18 , B01D63/02 , B01D65/00 , B01D31/00
CPC分类号： B01D63/02 , B01D65/00
摘要： The invention relates to a blood dialyzing apparatus comprising at least one bundle of semi-permeable hollow filaments and a cylindrical housing positioning said bundle of filaments and having a large length to inside diameter ratio of 7 to 10.
摘要翻译：本发明涉及一种血液透析装置，其包括至少一束半透空心细丝和定位所述细丝束的圆柱形壳体，其长度与内径之比大于7至10。

6. 发明授权

US4188117A Method and apparatus for detecting leaks in hollow fiber membrane modules 失效
标题翻译：用于检测中空纤维膜组件泄漏的方法和装置
公开(公告)号：US4188117A
公开(公告)日：1980-02-12
申请号：US900582
申请日：1978-04-27
申请人： Kazuhisa Yamauchi , Taku Tanaka , Syuji Kawai
发明人： Kazuhisa Yamauchi , Taku Tanaka , Syuji Kawai
IPC分类号： G01N21/41 , B01D63/02 , B01D65/10 , G01M3/38 , G01N21/45 , G01N21/16
CPC分类号： B01D65/104 , G01M3/38 , G01N21/45 , A61M2205/705
摘要： Leaks from a hollow fiber membrane module comprising a housing having one or more hollow fiber bundles positioned therein with at least one end of each bundle being sealed by a cementing layer includes the step of applying a pressurized gas to the external surfaces of the hollow fibers. The gas which is used must have a refractive index different from the refractive index of the ambient atmosphere. The atmospheric volume adjacent the sealed end of the module is optically monitored for refraction patterns caused by gas leaking through the sealed end into the volume. The optical system includes a light source and components for directing light from the source along an optical path including the monitored volume. Light which is passed through the monitored volume is directed to an optical display where the refraction patterns of the leaking gas will be visible. The method and apparatus permit leaks to be located without the use of liquids.
摘要翻译：一种中空纤维膜组件的泄漏包括具有一个或多个中空纤维束的壳体，所述中空纤维束定位在其中，每个束的至少一端由固结层密封，包括将加压气体施加到中空纤维的外表面的步骤。使用的气体必须具有与环境大气的折射率不同的折射率。对模块密封端附近的大气体积进行光学监测，以便由通过密封端泄漏到体积中的气体引起的折射图案。光学系统包括光源和用于沿着包括监视的体积的光路引导来自光源的光的部件。通过监视的体积的光被引导到光学显示器，其中泄漏气体的折射图案将是可见的。该方法和装置允许在不使用液体的情况下定位泄漏。

7. 发明授权

US4929482A Heat resistant container 失效
标题翻译：耐热容器
公开(公告)号：US4929482A
公开(公告)日：1990-05-29
申请号：US219113
申请日：1988-07-14
申请人： Tohei Moritani , Hidemasa Oda , Toshiaki Sato , Taichi Negi , Keiji Matsumura , Syuji Kawai , Nobuo Tanaka , Satoshi Hirofuji
发明人： Tohei Moritani , Hidemasa Oda , Toshiaki Sato , Taichi Negi , Keiji Matsumura , Syuji Kawai , Nobuo Tanaka , Satoshi Hirofuji
IPC分类号： B32B27/28 , B32B27/08 , B32B27/36 , B65D65/00 , B65D81/34
CPC分类号： B65D81/343 , B32B27/08 , B65D81/3415 , B65D2581/3437 , Y10T428/1372 , Y10T428/1379 , Y10T428/1383 , Y10T428/31797 , Y10T428/31935
摘要： The present invention provides a heat-resistant container comprising an ethylene-vinyl alcohol copolymer layer and a crystalline polyester layer. In particular, when an ethylene-vinyl alcohol copolymer containing a drying agent is used, the obtained container is both ovenable and retortable, thereby being highly useful.

8. 发明授权

US4810542A Multilayered tube for draw molding and multilayered container utilizing the tube 失效
标题翻译：用于拉伸成型的多层管和利用该管的多层容器
公开(公告)号：US4810542A
公开(公告)日：1989-03-07
申请号：US148358
申请日：1988-01-25
申请人： Syuji Kawai , Seio Anzai , Toshinori Ishii , Kenji Shirano , Kunihiko Shimamura , Toshimasa Kanemitsu , Keiji Matsumura
发明人： Syuji Kawai , Seio Anzai , Toshinori Ishii , Kenji Shirano , Kunihiko Shimamura , Toshimasa Kanemitsu , Keiji Matsumura
IPC分类号： B29C49/04 , B29C47/06 , B29C49/08 , B29C49/22 , B29K31/00 , B29K67/00 , B29L22/00 , B32B1/08 , B32B27/08 , B32B27/28 , B65D23/00 , B29C45/14
CPC分类号： B29C47/065 , B29C47/0023 , B29C47/265 , B29C49/22 , B32B27/08 , B29B2911/14646 , B29B2911/14653 , B29B2911/14713 , B29K2023/06 , B29K2023/083 , B29K2023/086 , B29K2067/00 , B29K2623/086 , Y10T428/1383 , Y10T428/1393 , Y10T428/2495 , Y10T428/31786 , Y10T428/31797 , Y10T428/31935
摘要： The tube of the present invention has no or very small local minute nonuniformity in thickness of EVOH layer, and therefore drawn-formed articles such as blow bottle obtained by draw molding the tube have no streaks and are superior in appearance.

9. 发明授权

US4073733A PVA membrane and method for preparing the same 失效
标题翻译： PVA膜及其制备方法
公开(公告)号：US4073733A
公开(公告)日：1978-02-14
申请号：US679441
申请日：1976-04-22
申请人： Kazuhisa Yamauchi , Koichi Takakura , Syuji Kawai , Akio Ohmori
发明人： Kazuhisa Yamauchi , Koichi Takakura , Syuji Kawai , Akio Ohmori
IPC分类号： B01D69/02 , B01D71/38 , B01D31/00
CPC分类号： B01D69/02 , B01D71/38 , Y10S521/905 , Y10S521/921
摘要： A polyvinyl alcohol semi-permeable membrane is prepared which has micropores with an average diameter of 0.02 to 2 microns as defined by the interpore partition walls having thicknesses in the range of 50 to 5000 A and which is characterized by substantial cross-sectional uniformity. The membrane is prepared by extruding a PVA composition containing PAG with a molecular weight of 400 to 4,000 and a carbon-to-oxygen ratio of not more than 3 in a proportion of 2 to 200 parts by weight per 100 parts of PVA into a coagulation bath. In another embodiment of the invention, the membrane is formed from a PVA composition wherein the PAG has a molecular weight of 600 to 3,000 and a C/O ratio of not more than 3, the proportion of the PAG being 15 to 150 parts by weight per 100 parts of PVA and wherein the composition satisfies the relation: 0.65 .ltoreq. CBR (critical blending ratio) .ltoreq. 1.0. The membrane is useful in ultrafiltration, dialytic and osmotic separation applications.
摘要翻译：制备聚乙烯醇半透膜，其具有平均直径为0.02至2微米的微孔，其由厚度在50至5000范围内的层间隔壁所限定，其特征在于具有显着的横截面均匀性。通过将含有分子量为400〜4000的PAG的PVA组合物和2〜200重量份/ 100重量份的PVA的碳 - 氧比率不大于3的PVA组合物挤出成凝固体来制备膜浴。在本发明的另一个实施方案中，膜由PVA组合物形成，其中PAG的分子量为600至3,000，C / O比不超过3，PAG的比例为15至150重量份每100份PVA，其中组合物满足关系：0.65

10. 发明授权

US4774114A Injection stretch blow container 失效
标题翻译：注塑拉伸吹塑容器
公开(公告)号：US4774114A
公开(公告)日：1988-09-27
申请号：US28772
申请日：1987-03-23
申请人： Tohei Moritani , Syuji Kawai , Kunihiko Shimamura , Toshiaki Sato
发明人： Tohei Moritani , Syuji Kawai , Kunihiko Shimamura , Toshiaki Sato
IPC分类号： B65D25/00 , B29C49/06 , B29C49/08 , B29C49/22 , B29K67/00 , B29L22/00 , B32B27/08 , B65D65/38 , C08J5/18 , B65D1/26 , C08L29/04
CPC分类号： B65D65/38 , B29C49/22 , B32B27/08 , B29B11/08 , B29B11/14 , B29B2911/1402 , B29B2911/14026 , B29B2911/14033 , B29B2911/1404 , B29B2911/14053 , B29B2911/14066 , B29B2911/1408 , B29B2911/14093 , B29B2911/14106 , B29B2911/14113 , B29B2911/1412 , B29B2911/14133 , B29B2911/1414 , B29B2911/14146 , B29B2911/14593 , B29B2911/14653 , B29B2911/14713 , B29K2067/00 , B29K2105/0032 , B29K2105/0044 , B29K2105/16 , B29K2105/258 , B29L2031/7158 , Y10T428/1379 , Y10T428/31797
摘要： An injection stretch blow container consisting of a combination of 97 to 70 parts by weight of saturated polyester and 3 to 30 parts by weight of a saponification product of an ethylene-vinyl acetate copolymer, said container having many areas, particularly at the body wall portion of said container in each of which areas substantially two-dimensional thin layers of said saponification product of said ethylene-vinyl acetate copolymer are laminated in parallel to the wall surface of said container in a matrix of saturated polyester, said saponification product of said ethylene-vinyl acetate copolymer in said area (20.times.20.mu.; vertical section or longitudinal section of the body wall of said container) is 0.001 to 1 .mu.m in average thickness and at least 5 in average aspect ratio and the laminated structural index represented by the following formula is at least 5:Laminated structural index ##EQU1## wherein L.sub.i represents a length of the overlapped portion of adjacent layers of the saponification product of the ethylene-vinyl acetate copolymer, andh.sub.i represents a distance between adjacent layers of saponification product of ethylene-vinyl acetate copolymer.This container has a high gas-barrier quality and is useful as a bottle for carbonated beverages or the like.
摘要翻译：一种由97〜70重量份的饱和聚酯和3〜30重量份乙烯 - 乙酸乙烯酯共聚物的皂化物组合的注射拉伸吹塑容器，所述容器具有许多区域，特别是在体壁部分所述乙烯 - 乙酸乙烯酯共聚物的所述皂化产物的基本二维薄层平行于所述容器的壁表面以饱和聚酯基体层压的所述容器的所述容器中，所述乙烯 - 乙酸乙烯酯共聚物的所述皂化产物，所述区域中的乙酸乙烯酯共聚物（20×20μm，所述容器的体壁的垂直截面或纵向截面）的平均厚度为0.001〜1μm，纵横比为平均至少5，由下式表示的层叠结构指数至少为5：层叠结构指数其中，Li表示皂化物的相邻层的重叠部分的长度乙烯 - 乙酸乙烯酯共聚物的皂化产物，hi表示乙烯 - 乙酸乙烯酯共聚物的皂化产物相邻层之间的距离。这种容器具有高的阻气性，可用作碳酸饮料等的瓶子。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式