公开(公告)号：US5171794A

公开(公告)日：1992-12-15

申请号：US550864

申请日：1990-07-10

申请人： Amalia Assogna ,  Alberto Gandini ,  Arnaldo Roggero ,  Raffaello Sisto ,  Alessandro Stopponi ,  Claudio Valentini

发明人： Amalia Assogna ,  Alberto Gandini ,  Arnaldo Roggero ,  Raffaello Sisto ,  Alessandro Stopponi ,  Claudio Valentini

IPC分类号： B01D71/52 ,  C08G65/48

CPC分类号： B01D71/52 ,  C08G65/485

摘要： An amorphous modified poly(2,6-dimethyl-p-oxyphenylene) (PPO) is described with a glass transition temperature (Tg) within the range of 170.degree.-220.degree. C., of which the macromolecules contain units having trialkylsilyl groups bonded to the nucleus and/or to the methyl: ##STR1## together with units having hydroxyethyl groups bonded to the nucleus and/or to the methyl: ##STR2## This modified PPO is prepared by metalating PPO with a metalating agent and reacting the formed metalated PPO with a trialkylsilyl halide and with ehtylene oxide in succession.The use of the thus modified PPO for the preparation of flat, including asymmetric, membranes useful in gas mixture separation processes is described.

公开(公告)号：US5175196A

公开(公告)日：1992-12-29

申请号：US897884

申请日：1992-06-12

申请人： Alessandro Stopponi ,  Claudio Demofonti ,  Claudio Valentini ,  Raffaello Sisto ,  Ugo Pedretti

发明人： Alessandro Stopponi ,  Claudio Demofonti ,  Claudio Valentini ,  Raffaello Sisto ,  Ugo Pedretti

IPC分类号： B01D69/08 ,  B01D71/52 ,  C08G65/48 ,  D01D5/24 ,  D01F6/00 ,  D01F6/78

CPC分类号： B01D71/52 ,  B01D69/08 ,  C08G65/485

摘要： A hollow fiber of amorphous, hydroxy-ethylated poly-(2,6-dimethyl-p-oxyphenylene) (PPO-OH) with a glass transition temperature (Tg) of from 180.degree. to 200.degree. C. is disclosed, which is formed by a high-density, microporous layer on a macroporous backing, and having an outer diameter comprised within the range of from 450 to 550 .mu.m and an inner diameter comprised within the range of from 250 to 400 .mu.m.The process for preparing the hollow fibre and the use of said fibre in the processes of separation of gas mixtures are disclosed as well.

公开(公告)号：US5169416A

公开(公告)日：1992-12-08

申请号：US623100

申请日：1990-12-06

申请人： Ugo Pedretti ,  Alberto Gandini ,  Arnaldo Roggero ,  Raffaello Sisto ,  Claudio Valentini ,  Amalia Assogna ,  Alessandro Stopponi

发明人： Ugo Pedretti ,  Alberto Gandini ,  Arnaldo Roggero ,  Raffaello Sisto ,  Claudio Valentini ,  Amalia Assogna ,  Alessandro Stopponi

IPC分类号： B01D71/52 ,  C08G65/48

CPC分类号： C08G65/485

摘要： A process for preparing a modified, amorphous poly-(2,6-dimethyl-p-oxyphenylene) (PPO) comprises:(a) metalating PPO with a metalating agent, and(b) functionalizing such a metalated PPO by reacting the PPO with a trialkylsilyl halide and/or ethylene oxide; and is characterized in that the reaction of metalation is carried out in an inert liquid vehicle which contains PPO in an at least partially suspended solid form, by operating under metalating conditions of gradually adding metalating agent to such a suspension, either continuously or as discrete portions. Depending on the functionalizing agents used, and on the sequence of addition thereof, the process makes it possible to obtain PPO polymers which are modified with trialkyl-silyl, hydroxyethylene and/or ethyleneoxytrialkyl-silyl functional groups. The modified PPO polymers are particularly suitable for preparing flat membranes, including asymmetrical membranes, for the separation of gas mixtures.

公开(公告)号：USD614831S1

公开(公告)日：2010-05-04

申请号：US29321400

申请日：2008-07-16

申请人： Italo Bardiani ,  Antonio Nespoli ,  Francesco Panto ,  Claudio Valentini

设计人： Italo Bardiani ,  Antonio Nespoli ,  Francesco Panto ,  Claudio Valentini

公开(公告)号：US5019631A

公开(公告)日：1991-05-28

申请号：US396944

申请日：1989-08-21

申请人： Otello Farias ,  Alberto Gandini ,  Raffaella Monga ,  Arnaldo Roggero ,  Raffaello Sisto ,  Claudio Valentini

发明人： Otello Farias ,  Alberto Gandini ,  Raffaella Monga ,  Arnaldo Roggero ,  Raffaello Sisto ,  Claudio Valentini

IPC分类号： B01D71/52 ,  C08G65/48

CPC分类号： C08G65/485 ,  B01D71/52

摘要： A modified poly(2,6-dimethyl-p-oxyphenylene) with a glass transition temperature in the range of 180.degree.-220.degree. C. is described in which on the average between 10 and 60% of the macromolecules carry:a) an ##STR1## unit; or b) an ##STR2## unit. Said modified poly(2,6-dimethyl-p-oxyphenylene) is useful as a material in the preparation of flat membranes, in particular asymmetric membrane, for gas separation.

公开(公告)号：US4826663A

公开(公告)日：1989-05-02

申请号：US862809

申请日：1986-05-13

申请人： Giulio Alberti ,  Francesco Bartoli ,  Umberto Constantino ,  Francesco Di Gregorio ,  Claudio Valentini

发明人： Giulio Alberti ,  Francesco Bartoli ,  Umberto Constantino ,  Francesco Di Gregorio ,  Claudio Valentini

IPC分类号： B01J27/18 ,  B01J39/08 ,  B01J39/12 ,  C01B25/37 ,  C07D453/04 ,  C01B15/16 ,  C01B25/26

CPC分类号： C01B25/372 ,  B01J39/085 ,  C07D453/04

摘要： The invention relates to a zirconium phosphate in particles having sizes comprised within the range of from 1 to 100 .mu.m, a lamellar structure with interlayer distance, in the anhydrous state, comprised within the range of from 7.9 to 8.2 .ANG. and a surface area comprised within the range of from 9 to 20 m.sup.2 /g.The method consists in altering the lamellar structure of a zirconium phosphate with layer structure of alpha type by intercalating into it an organic substance containing a proton-acceptor group and water and by a treatment with ultrasounds, in regenerating the hydrogen form of said zirconium phosphate by an acid and in washing the same with diluted acids and/or water.

摘要翻译： 本发明涉及一种粒径在1至100μm范围内的颗粒中的磷酸锆，层间距离为无水状态的层状结构包括在7.9至8.2范围内，表面积包括 在9至20m2 / g的范围内。 该方法包括通过将含有质子 - 受体基团和水的有机物质插入其中的α型层结构来改变磷酸锆的层状结构，并通过用超声波处理，通过以下步骤再生氢形式的所述磷酸锆： 酸，并用稀酸和/或水洗涤。

公开(公告)号：US20130126619A1

公开(公告)日：2013-05-23

申请号：US13299369

申请日：2011-11-18

申请人： Emiliano Del Fiume ,  Claudio Valentini

发明人： Emiliano Del Fiume ,  Claudio Valentini

IPC分类号： G06K19/06 ,  G06K19/07

CPC分类号： H04L9/3247 ,  H04L2209/80 ,  H04W12/00522 ,  H04W12/10

摘要： A method and system for certifying contact information is described. The method includes embedding the contact information in a format and encoding the format into a matrix barcode. The encoded matrix barcode is digitally signed to certify the contact information. Further, the format includes a vCard format and the matrix barcode includes a quick response code.

摘要翻译： 描述用于验证联系人信息的方法和系统。 该方法包括以格式嵌入联系人信息并将格式编码成矩阵条形码。 编码矩阵条形码经数字签名以证明联系信息。 此外，格式包括vCard格式，并且矩阵条形码包括快速响应代码。

公开(公告)号：US4413142A

公开(公告)日：1983-11-01

申请号：US358326

申请日：1982-03-15

申请人： Mario Fiorini ,  Claudio Valentini

发明人： Mario Fiorini ,  Claudio Valentini

IPC分类号： C07C227/26 ,  C07C29/10 ,  C07C31/42 ,  C07C229/22 ,  C07D317/20 ,  C07C101/30

CPC分类号： C07C255/00 ,  C07C29/103 ,  C07C31/42 ,  C07D317/20 ,  C07B2200/07

摘要： L-carnitine is prepared by a synthesizing process starting from D-mannitol. The synthesis is started with the formation of a D-mannitol ketonide (more specifically D-mannitol acetonide from D-mannitol and acetone, whereafter the D-mannitol is split by oxidation to give glyceraldehyde acetonide, which is further reduced to glycerol acetonide. Then the free hydroxyl group is exchanged with a halogen atom (chlorine) with the formation of chlorodihydroxy propane, the primary alcoholic group of which is functionalized with the acid chloride of a sulfonic acid (tosylchloride). The reaction of the tosyl derivative with the salt of hydrogen cyanide leads to the formation of the corresponding nitrile which, when reacted with trimethylamine gives carnitinonitrile. The nitrile group is now hydrolyzed to give L-carnitine chloride. The formation of L-carnitine can then be obtained by exchanging the chloride ion with a hydroxyl ion.

摘要翻译： L-肉碱通过从D-甘露糖醇开始的合成方法制备。 从D-甘露糖醇和丙酮形成D-甘露醇酮酮（更具体地说是D-甘露糖醇缩酮化合物）开始合成，然后通过氧化将D-甘露糖醇分裂，得到甘油醛缩酮，进一步还原成甘油丙酮化物 游离羟基与卤素原子（氯）交换，形成氯二羟基丙烷，其主要的醇基被磺酸（甲苯磺酰氯）的酰氯官能化，甲苯磺酰基衍生物与盐 氰化氢导致相应的腈的形成，当与三甲胺反应产生肉碱腈时，腈基现在被水解以得到L-肉碱氯化物，然后可以通过将氯离子与羟基交换来获得左旋肉碱的形成 离子。