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

US3944622A Method for producing ketones 失效
标题翻译：制备酮的方法
公开(公告)号：US3944622A
公开(公告)日：1976-03-16
申请号：US396660
申请日：1973-09-12
申请人： Takehiko Okamoto , Tamihiro Ohashi , Isao Koga
发明人： Takehiko Okamoto , Tamihiro Ohashi , Isao Koga
IPC分类号： C07C45/45 , C07C45/48 , C07C45/72 , C07C45/00
CPC分类号： C07C45/45 , C07C45/48 , C07C45/72
摘要： Ketones are prepared with a high yield and a prolonged catalyst life, by reacting an aldehyde selected from the group consisting of straight chain or branched chain aliphatic aldehydes having a carbon number of 4-10 (inclusive) and aromatic aldehydes represented by the general formula of ##SPC1##Wherein n is 0-5 with a monocarboxylic acid selected from the group consisting of acetic acid and propionic acid, at a temperature of 200.degree.-600.degree.C, in the presence of a catalyst of zirconium oxide alone or a mixture of zirconium oxide and at least one kind of the metal oxide selected from the group consisting of alkali metal oxides and alkaline earth metal oxides.
摘要翻译：通过使选自碳数为4-10（含）的直链或支链脂肪族醛的醛与通式在含有氧化乙烯和丙酸的基团中选择的单羧酸在200℃-600℃的温度下，在单独的氧化锆催化剂或氧化锆和至少一种选自碱金属氧化物和碱土金属氧化物的金属氧化物。

2. 发明授权

US3966822A Catalytic preparation of ketones from aldehydes 失效
标题翻译：从醛催化制备酮
公开(公告)号：US3966822A
公开(公告)日：1976-06-29
申请号：US248133
申请日：1972-04-27
申请人： Masahiro Fukui , Shigeru Hayashi , Takehiko Okamoto , Isao Koga , Takeshi Inoi
发明人： Masahiro Fukui , Shigeru Hayashi , Takehiko Okamoto , Isao Koga , Takeshi Inoi
IPC分类号： C07C45/00 , C07C49/553
CPC分类号： C07C45/00 , C07C49/553
摘要： Symmetrical and unsymmetrical ketones are produced from aldehydes (aliphatic, alicyclic or aromatic aldehydes) or their mixtures according to the process of the present invention which comprises contacting the aldehydes or mixtures theirof with a catalyst selected from the group consisting of zirconium oxide and combinations of zirconium oxide with an alkali metal oxide and/or an alkaline earth metal oxide. Said catalyst is used with or without a carrier. The process is operated in the vapor phase at elevated temperature in the presence or absence of steam.
摘要翻译：根据本发明的方法由醛（脂族，脂环族或芳族醛）或其混合物产生对称和不对称的酮，其包括使醛或其混合物与选自氧化锆和锆的组合的催化剂接触氧化物与碱金属氧化物和/或碱土金属氧化物反应。所述催化剂与或不与载体一起使用。在蒸汽存在或不存在的情况下，该方法在升高的温度下在气相中操作。

3. 发明授权

US4664669A Composite hollow fiber-type separation membranes, processes for the preparation thereof and their use 失效
标题翻译：复合中空纤维型分离膜，其制备方法及其应用
公开(公告)号：US4664669A
公开(公告)日：1987-05-12
申请号：US584321
申请日：1984-02-28
申请人： Shuzo Ohyabu , Syuji Kawai , Takehiko Okamoto , Takao Migaki
发明人： Shuzo Ohyabu , Syuji Kawai , Takehiko Okamoto , Takao Migaki
IPC分类号： D01F8/04 , B01D69/02 , B01D69/08 , B01D69/12 , B01D71/68 , B01D71/70 , D06M15/643 , D06M101/00 , D06M101/16 , D06M101/30 , A61F2/00
CPC分类号： B01D69/08 , B01D69/02 , B01D69/12 , Y10S623/92 , Y10T428/249953
摘要： A composite hollow fiber type separation membrane which has three layers comprising a selective separation layer, an ultra-microporous layer and a porous layer, said selective separation layer, said ultra-microporous layer, said porous layer being arranged in said order commencing from the inner surface of said hollow fiber membrane;wherein said selective separation layer is formed on said ultra-microporous layer without penetrating into said ultra-microporous layer and has a non-porous, dense structure, the average thickness of said layer being 0.01-2.mu., and the coefficient of variation in thickness thereof being less than or equal to 25%;wherein said ultra-microporous layer has a surface in which the presence of pores cannot be confirmed by 24,000 .times. scanning electron microscopy, but which has a fluid permeability at least 10 times that of said selective separation layer, the thickness of said layer being less than or equal to 0.08.mu.; andwherein said porous layer is a sponge structure comprising pores having a pore diameter of 0.1-1.mu. except for macro-voids and having a porosity of at least 50%, the thickness of said layer being 10-500.mu..
摘要翻译：一种复合中空纤维型分离膜，其具有包括选择性分离层，超微孔层和多孔层的三层，所述选择性分离层，所述超微孔层，所述多孔层以从所述内层所述中空纤维膜的表面; 其中所述选择性分离层形成在所述超微孔层上，而不会渗入所述超微孔层并具有无孔，致密结构，所述层的平均厚度为0.01-2μm，厚度变化系数小于或等于25％; 其特征在于，所述超微孔层具有不能通过24000×扫描电子显微镜确认孔的存在的表面，但是其流体渗透率为所述选择性分离层的至少10倍，所述层的厚度小于或等于0.08亩; 并且其中所述多孔层是海绵结构，其包含孔径为0.1-1μm的孔，除了大孔隙，并且孔隙率为至少50％，所述层的厚度为10-500μm。

4. 发明授权

US4279752A Polyvinyl alcohol semi-permeable membrane and method for producing same 失效
标题翻译：聚乙烯醇半透膜及其制造方法
公开(公告)号：US4279752A
公开(公告)日：1981-07-21
申请号：US41077
申请日：1979-05-21
申请人： Akinori Sueoka , Takehiko Okamoto , Akio Ohmori , Syuji Kawai , Minoru Ueda
发明人： Akinori Sueoka , Takehiko Okamoto , Akio Ohmori , Syuji Kawai , Minoru Ueda
IPC分类号： B01D67/00 , B01D71/38 , B01D71/78 , B01D71/80 , C08J9/26 , B01D31/00 , B01D13/00
CPC分类号： B01D67/003 , B01D69/08 , B01D71/38 , C08J9/26 , B01D2323/08 , B01D2323/30 , C08J2329/04
摘要： A polyvinyl alcohol (PVA) microporous membrane is disclosed which is prepared by a process which comprises forming a PVA membrane containing fine silica particles therein and substantially extracting said silica particles from said membrane, thereby forming a plurality of micropores therein with an average diameter of 0.01 to 50 microns and a porosity of at least 60%.
摘要翻译：公开了一种聚乙烯醇（PVA）微孔膜，其通过包括在其中形成含有二氧化硅微粒的PVA膜并从所述膜中基本上提取所述二氧化硅颗粒的方法制备，从而在其中形成平均直径为0.01的多个微孔至50微米，孔隙率至少为60％。

5. 发明授权

US4325915A Bulk polymerization reactor 失效
标题翻译：本体聚合反应器
公开(公告)号：US4325915A
公开(公告)日：1982-04-20
申请号：US134520
申请日：1980-03-27
申请人： Hiroshi Sato , Takehiko Okamoto , Akira Asada
发明人： Hiroshi Sato , Takehiko Okamoto , Akira Asada
IPC分类号： B01J19/18 , C08F2/02 , C08F279/04
CPC分类号： B01J19/18 , C08F279/04 , B01J2219/00094 , B01J2219/185
摘要： A bulk polymerization reactor takes the form of a vertical, cylindrical vat of a jacket construction defining a reaction chamber which a rotary drive shaft having an off-center longitudinal section with perforated discs and shearing blades extends vertically through. Successful preclusion of abnormal stagnation of the liquid phase in the reaction chamber during polymerization avoids undesirable coloring in the product while assuring stable polymerization and high yield.
摘要翻译：本体聚合反应器采用垂直的圆柱形槽形式，形成一个限定反应室的套管结构，旋转驱动轴具有偏心中心的纵向部分，带有多孔的圆盘和剪切刀片垂直延伸。在聚合期间成功排除反应室中液相异常滞留，避免产品中不希望的着色，同时确保稳定的聚合和高产率。

6. 发明授权

US3981944A Method for producing impact resistant thermoplastic resin by continuous bulk polymerization 失效
标题翻译：通过连续本体聚合制备耐冲击热塑性树脂的方法
公开(公告)号：US3981944A
公开(公告)日：1976-09-21
申请号：US478535
申请日：1974-06-12
申请人： Takehiko Okamoto , Akihiko Kishimoto , Ikuo Nagai , Hiroshi Sato , Hotsuma Okasaka , Masakazu Inoue
发明人： Takehiko Okamoto , Akihiko Kishimoto , Ikuo Nagai , Hiroshi Sato , Hotsuma Okasaka , Masakazu Inoue
IPC分类号： C08F2/02 , C08F279/02 , C08F285/00 , C08L9/02 , C08L9/06
CPC分类号： C08F285/00 , C08F279/02
摘要： A method is provided for continuously manufacturing high impact strength thermoplastic resins comprised of the sequential steps of (a) bulk-polymerizing a monomer solution, which contains a diene type rubber polymer or a graft polymer obtained by extracting the rubber polymer particle or vinyl monomer grafted polymer particle in latex with vinyl monomers which contain 5-20 percent by weight of water at a temperature of 85.degree.-135.degree.C, while continuously stirring the solution, vaporizing the volatile components, condensing the volatile component and recycling them back to reaction mixture, until the solid content in the reaction mixture reaches 40-75 percent by weight, and thereafter (b) bulk polymerizing the resulting prepolymer solution under the condition that plug-flowing can be attained with a temperature gradient 100.degree.-170.degree.C at the top of the reaction vessel and 170.degree.-270.degree.C at the bottom thereof, while the volatile component of the mixture are evaporated off, condensed and recycled to the reaction mixture, until the solid content is at least 90 percent by weight.
摘要翻译：提供一种用于连续制造高冲击强度热塑性树脂的方法，其包括以下顺序步骤：（a）将含有二烯型橡胶聚合物的单体溶液本体聚合或通过萃取橡胶聚合物颗粒或乙烯基单体接枝而获得的接枝聚合物乙烯基单体的聚合物颗粒在85℃-135℃的温度下含有5-20重量％的水，同时连续搅拌该溶液，蒸发挥发性组分，将挥发性组分冷凝并回收到反应混合物中直到反应混合物中的固体含量达到40-75重量％，然后（b）在100-170℃的温度梯度下，在可以实现堵塞流动的条件下将所得预聚物溶液本体聚合反应容器的顶部和底部为170℃-270℃，同时将混合物的挥发性组分蒸发掉并将其再循环到反应混合物中，直到固体含量为至少90重量％。

7. 发明授权

US4547289A Filtration apparatus using hollow fiber membrane 失效
标题翻译：中空纤维膜过滤装置
公开(公告)号：US4547289A
公开(公告)日：1985-10-15
申请号：US584118
申请日：1984-02-27
申请人： Yoshihiro Okano , Takehiko Okamoto , Akio Ohmory
发明人： Yoshihiro Okano , Takehiko Okamoto , Akio Ohmory
IPC分类号： B01D63/02 , B01D65/10 , B01D31/00
CPC分类号： B01D65/102 , B01D63/024 , B01D2313/21
摘要： A filtration apparatus for removing undesirable components from a solution to be treated, comprises a module in which a number of hollow fibers are fixed at one end thereof by cast-molding materials, and is opened at the end portion above described and closed at another end portion thereof, in which said solution to be treated can be kept from leaking out of a mechanically sealed portion. Any defect in the sealed portion can be detected from the outside by the provision of an opening which leads the leaked solution to the outside of the apparatus, instead of allowing it to combine with the filtrate. The apparatus is preferably used for the manufacture of purified water which is free from bacteria, pyrogene, and the like. Ultra-purified water of remarkably high purity can be obtained when the apparatus is used as a check filter in a process for manufacturing ultra-purified water.
摘要翻译：用于从待处理溶液中除去不希望的组分的过滤装置包括其中多个中空纤维在其一端通过铸塑材料固定的模块，并且在另一端的上述端部处封闭其中所述待处理溶液可以防止从机械密封部分泄漏。通过设置将泄漏溶液引导到设备外部的开口，可以从外部检测密封部分中的任何缺陷，而不是允许其与滤液结合。该装置优选用于制造不含细菌，焦炉等的净化水。当在超纯水制造过程中将该装置用作检查过滤器时，可以获得非常高纯度的超纯水。

8. 发明授权

US3950455A Method for graft polymerization of diene polymer 失效
标题翻译：二烯聚合物接枝聚合方法
公开(公告)号：US3950455A
公开(公告)日：1976-04-13
申请号：US483107
申请日：1974-06-26
申请人： Takehiko Okamoto , Akihiko Kishimoto , Masakazu Inoue , Ikuo Nagai , Mitsunobu Otani
发明人： Takehiko Okamoto , Akihiko Kishimoto , Masakazu Inoue , Ikuo Nagai , Mitsunobu Otani
IPC分类号： C08F279/02 , C08F285/00 , C08F291/02
CPC分类号： C08F285/00 , C08F279/02 , Y10S525/91
摘要： High impact resistant thermoplastic resins are produced in three steps: (a) graft polymerizing a minor amount of unsaturated monomer onto a major amount of diene type rubber polymer in latex form, (b) mixing the grafted diene type rubber latex with a monomer or monomers, extracting the grafted rubber polymer particles into the monomer phase and separating and discarding the water phase to obtain a grafted rubber polymer particle dispersed monomer solution, and (c) bulk polymerizing the resulting rubber polymer particle dispersed monomer solution.
摘要翻译：高耐冲击热塑性树脂分三个步骤生产：（a）将少量不饱和单体接枝聚合到胶乳形式的主要量的二烯型橡胶聚合物上，（b）将接枝二烯型橡胶胶乳与单体或单体将接枝的橡胶聚合物颗粒提取到单体相中并分离和丢弃水相，得到接枝橡胶聚合物颗粒分散单体溶液，和（c）将所得橡胶聚合物颗粒分散的单体溶液本体聚合。

9. 发明授权

US5340480A Polysulfone-based hollow fiber membrane and process for manufacturing the same 失效
标题翻译：聚砜基中空纤维膜及其制造方法
公开(公告)号：US5340480A
公开(公告)日：1994-08-23
申请号：US53074
申请日：1993-04-26
申请人： Ichiro Kawata , Takehiko Okamoto , Hiroyuki Akasu , Kensaku Komatsu
发明人： Ichiro Kawata , Takehiko Okamoto , Hiroyuki Akasu , Kensaku Komatsu
IPC分类号： B01D67/00 , B01D69/08 , B01D71/68 , D01F1/08
CPC分类号： B01D71/68 , B01D67/0011 , B01D69/08 , B01D2323/08 , B01D2323/12 , B01D2325/022 , B01D2325/20 , B01D2325/34
摘要： The polysulfone hollow fiber membrane of the invention has an inner dense skin layer composed of a polysulfone and a less amount of a polyvinylpyrrolidone, a content of the polyvinylpyrrolidone in the dense skin layer being higher than that in an outer surface layer. This membrane has excellent biocompatibility and antithrombogenetic ability and is, therefore, useful in body fluid treatment, such as hemodialysis, hemofiltration and hemoconcentration, without clogging with thrombi.
摘要翻译：本发明的聚砜中空纤维膜具有由聚砜和少量的聚乙烯吡咯烷酮构成的内部致密表皮层，致密表皮层中聚乙烯吡咯烷酮的含量高于外表面层中的含量。该膜具有优异的生物相容性和抗血栓发生能力，因此可用于体液治疗，如血液透析，血液滤过和血液浓缩，无栓塞堵塞。

10. 发明授权

US4938778A Composite hollow fiber type separation membranes processes for the preparation thereof and their use 失效
标题翻译：复合中空纤维型分离膜的制备方法及其用途
公开(公告)号：US4938778A
公开(公告)日：1990-07-03
申请号：US906604
申请日：1986-09-10
申请人： Shuzo Ohyabu , Syuji Kawai , Takehiko Okamoto , Takao Migaki
发明人： Shuzo Ohyabu , Syuji Kawai , Takehiko Okamoto , Takao Migaki
IPC分类号： D01F8/04 , B01D69/02 , B01D69/08 , B01D69/12 , B01D71/68 , B01D71/70 , D06M15/643 , D06M101/00 , D06M101/16 , D06M101/30
CPC分类号： B01D69/08 , B01D69/02 , B01D69/12 , Y10S623/92 , Y10T428/249953
摘要： A composite hollow fiber type separation membrane which has three layers comprising a selective separation layer, an ultra-microporous layer and a porous layer, said selective separation layer, said ultra-microporous layer, said porous layer being arranged in said order commencing from the inner surface of said hollow fiber membrane;wherein said selective separation layer is formed on said ultra-microporous layer without penetrating into said ultra-microporous layer and has a non-porous, dense structure, the average thickness of said layer being 0.01-2.mu., and the coefficient of variation in thickness thereof being less than or equal to 25%;wherein said ultra-microporous layer has a surface in which the presence of pores cannot be confirmed by 24,000x scanning electron microscopy, but which has fluid permeability at least 10 times that of said selective separation layer, the thickness of said layer being less than or equal to 0.08.mu.; andwherein said porous layer is a sponge structure comprising pores having a pore diameter of 0.1-1.mu. except for micro-voids and having a porosity of at least 50%, the thickness of said layer being 10-500.mu..

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