公开(公告)号：US20100160578A1

公开(公告)日：2010-06-24

申请号：US12339987

申请日：2008-12-19

申请人： Roy Ray Odle ,  Vijay Gopalakrishnan ,  Narayan Ramesh ,  Albert Santo Stella ,  Lioba Maria Kloppenburg ,  David Bruce Hall

发明人： Roy Ray Odle ,  Vijay Gopalakrishnan ,  Narayan Ramesh ,  Albert Santo Stella ,  Lioba Maria Kloppenburg ,  David Bruce Hall

IPC分类号： C08G85/00 ,  C08G73/10

CPC分类号： C08G73/1007 ,  C08G73/1064 ,  C08K5/18 ,  C08L79/08

摘要： The present invention provides a process for measuring and controlling chemical reactions that produce thermoplastic polymers by utilizing a stoichiometry correction during a reaction cycle to produce thermoplastic resins with desired properties. The thermoplastic polymer is made from at least one first monomer having a first reactive end group and at least one second monomer having a second reactive end group by reaction of the first reactive end group with the second reactive end group and has a glass transition temperature of greater than 130° C.

摘要翻译： 本发明提供了一种通过在反应循环期间利用化学计量校正来制备具有所需性质的热塑性树脂来测量和控制产生热塑性聚合物的化学反应的方法。 热塑性聚合物由具有第一反应性端基的至少一种第一单体和具有第二反应性端基的至少一种第二单体通过第一反应性端基与第二反应性端基的反应制备，并且玻璃化转变温度为 大于130℃

公开(公告)号：US20080262196A1

公开(公告)日：2008-10-23

申请号：US12059217

申请日：2008-03-31

申请人： Mark Howard Giammattei ,  Bernabe Quevedo Sanchez ,  Narayan Ramesh ,  Norberto Silvi

发明人： Mark Howard Giammattei ,  Bernabe Quevedo Sanchez ,  Narayan Ramesh ,  Norberto Silvi

IPC分类号： C08F6/12 ,  B29C47/08 ,  B29C47/66

CPC分类号： C08F6/12 ,  B29C48/03 ,  B29C48/268 ,  B29C48/395 ,  B29C48/402 ,  B29C48/45 ,  B29C48/687 ,  B29C48/767 ,  C08F6/003 ,  C08F6/10

摘要： The present invention relates to various embodiments of a system and method for separating polymer from a solvent. In one embodiment a system for separating polymer from a solvent comprises an extrusion apparatus includes a hollow member having a first end portion, a second end portion, and a feed port between the first end portion and the second end portion. The extrusion apparatus includes a back flash vent port disposed upstream of the feed port and a forward flash vent port disposed downstream of the feed port. The extrusion apparatus further includes a vent insert located at the forward flash vent port, a screw disposed inside the hollow member, and an internal superheating section disposed between the feed port and the downstream vent opening of the hollow member such that the length of the internal superheating section is greater than about four times the diameter, 4D, of the hollow member.

摘要翻译： 本发明涉及从溶剂中分离聚合物的系统和方法的各种实施方案。 在一个实施方案中，用于从溶剂中分离聚合物的系统包括挤出装置，其包括具有第一端部，第二端部和在第一端部和第二端部之间的进料口的中空构件。 挤出装置包括设置在进料口上游的后部闪蒸排放口和设置在进料口下游的前部快闪通气口。 挤出装置还包括位于前部快闪通气口处的通气插入件，设置在中空构件内部的螺钉和设置在中空构件的进料口和下游排气口之间的内部过热部分，使得内部 过热部分大于中空部件直径的四倍。

公开(公告)号：US20060089487A1

公开(公告)日：2006-04-27

申请号：US11298365

申请日：2005-12-08

申请人： Norberto Silvi ,  Mark Giammattei ,  Jan Keulen ,  David Woodruff ,  Paul Wilson ,  Paul Buckley ,  Norman Johnson ,  Narayan Ramesh

发明人： Norberto Silvi ,  Mark Giammattei ,  Jan Keulen ,  David Woodruff ,  Paul Wilson ,  Paul Buckley ,  Norman Johnson ,  Narayan Ramesh

IPC分类号： C08J3/00 ,  C08F6/00

CPC分类号： C08F6/10 ,  B01J2219/00006 ,  B29C48/03 ,  B29C48/268 ,  B29C48/395 ,  B29C48/402 ,  B29C48/45 ,  B29C48/687 ,  B29C48/767 ,  C08F6/12

摘要： A method of separating a polymer-solvent mixture is described wherein a polymer-solvent mixture is heated prior to its introduction into an extruder comprising an upstream vent and/or a side feeder vent to allow flash evaporation of the solvent, and downstream vents for removal of remaining solvent. The one-step method is highly efficient having very high throughput rates while at the same time providing a polymer product containing low levels of residual solvent.

公开(公告)号：US06870025B2

公开(公告)日：2005-03-22

申请号：US10326933

申请日：2002-12-23

申请人： Patrick Joseph McCloskey ,  Jan Pleun Lens ,  James Anthony Cella ,  Jan Henk Kamps ,  Kathryn Lynn Longley ,  Narayan Ramesh ,  Warren William Reilly ,  Paul Michael Smigelski, Jr. ,  Marc Brian Wisnudel

发明人： Patrick Joseph McCloskey ,  Jan Pleun Lens ,  James Anthony Cella ,  Jan Henk Kamps ,  Kathryn Lynn Longley ,  Narayan Ramesh ,  Warren William Reilly ,  Paul Michael Smigelski, Jr. ,  Marc Brian Wisnudel

IPC分类号： C08G63/64 ,  C08G64/00 ,  C08G64/04 ,  C08G64/14 ,  C08G64/30 ,  C08L23/00 ,  C08L67/00 ,  C08L69/00

CPC分类号： C08G63/64 ,  C08G64/04 ,  C08G64/14 ,  C08G64/307 ,  C08L23/00 ,  C08L67/00 ,  C08L69/00 ,  C08L69/005 ,  C08L2666/18 ,  C08L2666/06

摘要： Polycarbonates containing low or undetectable levels of Fries rearrangement products and comprising repeat units derived from one or more of resorcinol, hydroquinone, methylhydroquinone, bisphenol A, and 4,4′-biphenol have been prepared by the melt reaction of one or more of the aforementioned dihydroxy aromatic compounds with an ester-substituted diaryl carbonate such as bis-methyl salicyl carbonate. Low, or in many instances undetectable, levels of Fries rearrangement products are found in the product polycarbonates obtained as the combined result of a highly effective catalyst system which suppresses the Fries reaction and the use of lower melt polymerization temperatures relative to temperatures required for the analogous polymerization reactions using diphenyl carbonate.

摘要翻译： 含有低或不可检测水平的弗里斯重排产物并且包含衍生自间苯二酚，氢醌，甲基氢醌，双酚A和4,4'-联苯酚中的一种或多种的重复单元的聚碳酸酯已经通过一种或多种上述 二羟基芳族化合物与酯取代的二芳基碳酸酯如碳酸双甲基水杨酸酯。 低产量或在许多情况下，不可检测的是，在由高效催化剂体系获得的产品聚碳酸酯中发现了油炸产品重排产物的水平，该催化剂体系抑制了Fries反应，并且相对于类似物所需的温度使用较低的熔体聚合温度 使用碳酸二苯酯的聚合反应

公开(公告)号：US07674920B2

公开(公告)日：2010-03-09

申请号：US12058331

申请日：2008-03-28

申请人： Beatriz Penalver Bernabe ,  Lioba Maria Kloppenburg ,  Matt Kuhlman ,  Roy Ray Odle ,  Eric Pressman ,  Narayan Ramesh ,  Harpreet Singh

发明人： Beatriz Penalver Bernabe ,  Lioba Maria Kloppenburg ,  Matt Kuhlman ,  Roy Ray Odle ,  Eric Pressman ,  Narayan Ramesh ,  Harpreet Singh

IPC分类号： C07D307/89

CPC分类号： C07D307/88 ,  C07D307/89 ,  C08G73/1046

摘要： A method for preparing an oxydiphthalic anhydride comprises contacting, under reactive and substantially anhydrous conditions in a reactor, at least one halophthalic anhydride containing more than 250 ppm chlorophthalide impurity with a carbonate of the formula M2CO3, wherein M is an alkali metal, in the presence of a catalytic proportion of at least one phase transfer catalyst selected from the group consisting of hexaalkylguanidinium halides and alpha,omega-bis(pentaalkylguanidinium)alkane salts, phosphonium salts, phosphazenium salts, pyridinium salts, phosphazenium salts, ammonium salts, and combinations thereof. The phase transfer catalyst is present in a sufficient amount to prepare the oxydiphthalic anhydride when the chlorophthalide is present in an amount that is more than 250 ppm, and the oxydiphthalic anhydride is produced in a yield, based on the carbonate, of at least 70%.

摘要翻译： 一种制备氧联二邻苯二甲酸酐的方法包括在反应器和反应性基本上无水的条件下，在反应器中使至少一种含有多于250ppm氯酞酸盐杂质的卤代邻苯二甲酸酐与式M2CO3的碳酸酯（其中M为碱金属）在存在下 选自六烷基卤化镓和α，ω-双（五烷基胍）烷烃盐，鏻盐，磷氮烯基鏻盐，吡啶鎓盐，磷氮烯基鏻盐，铵盐及其组合的至少一种相转移催化剂的催化剂比例。 当氯代苯酞以250ppm以上的量存在时，相转移催化剂的存在量足以制备氧联二邻苯二甲酸酐，并且基于碳酸酯的产率以氧化邻苯二甲酸酐的产率为至少70％ 。

公开(公告)号：US20070225479A1

公开(公告)日：2007-09-27

申请号：US11755415

申请日：2007-05-30

申请人： Norberto Silvi ,  Mark Giammattei ,  Narayan Ramesh ,  Bernabe Quevedo Sanchez

发明人： Norberto Silvi ,  Mark Giammattei ,  Narayan Ramesh ,  Bernabe Quevedo Sanchez

IPC分类号： C08J3/00

CPC分类号： C08F6/003 ,  B29C48/07 ,  B29C48/767 ,  C08F6/12 ,  C08G64/403 ,  C08G65/46 ,  C08G73/1032 ,  C08G73/1046 ,  C08L23/02

摘要： The present invention provides a method of separating a polymer from a solvent comprising introducing a superheated polymer-solvent mixture into an extruder, and isolating a polymer product, said extruder being equipped with at least one vent operated at subatmospheric pressure and at least one vent operated at about atmospheric pressure, said extruder having a screw diameter D, said extruder being operated at a feed rate FR and at a screw speed RPM such that a devolatilization performance ratio (DPR) given by Equation (I) DPR=FR/RPM  Equation (I)is selected from a predetermined set of devolatilization performance ratios which correlate with a target characteristic of the polymer product.

摘要翻译： 本发明提供了一种从溶剂中分离聚合物的方法，包括将过热的聚合物 - 溶剂混合物引入挤出机中，并分离聚合物产物，所述挤出机配备有至少一个在低于大气压的压力下操作的通风口和至少一个排气操作 在约大气压下，所述挤出机具有螺杆直径D，所述挤出机以进给速率FR和螺杆转速RPM操作，使得式（I）给出的脱挥发性能比（DPR）<β在线式 描述=“在线公式”end =“lead”？> DPR = FR / RPM等式（I）<？in-line-formula description =“In-line Formulas”end =“tail”？> 与聚合物产品的目标特性相关的预定的脱挥发性能比。