公开(公告)号：US20170355815A1

公开(公告)日：2017-12-14

申请号：US15527484

申请日：2015-11-18

申请人： Matthew BECKER ,  Howard DEAN ,  Yuanyuan LUO

发明人： Matthew BECKER ,  Howard DEAN ,  Yuanyuan LUO

IPC分类号： C08G63/78 ,  B33Y70/00 ,  C08G63/52 ,  C08G63/90 ,  C08L67/06

CPC分类号： C08G63/78 ,  A61L27/18 ,  A61L27/56 ,  B33Y70/00 ,  C08G63/52 ,  C08G63/90 ,  C08L67/06

摘要： The present invention provides a low molecular mass PPF polymer (and related methods) that is suitable for 3D printing and other polymer device fabrication modalities and can be made inexpensively in commercially reasonable quantities. These novel low molecular mass PPF polymers have a low molecular mass distribution (m) and a wide variety of potential uses, particularly as a component in resins for 3D printing of medical devices. The ability to produce low m PPF creates a new opportunity for reliable GMP production of PPF. It provides low cost synthesis and scalability of synthesis, blending of well-defined mass and viscosity PPF, and reduced reliance on solvents or heat to (a) achieve mixing of 3D printable resins or (b) and flowability during 3D printing. These PPF polymers are non-toxic, degradable, and resorbable and can be used in tissue scaffolds and medical devices that are implanted within a living organism.

公开(公告)号：US20170240706A1

公开(公告)日：2017-08-24

申请号：US15434391

申请日：2017-02-16

申请人： U.S. Army Research Laboratory ATTN: RDRL-LOC-I

发明人： Eric D. Wetzel ,  Emil Jose Sandoz-Rosado ,  Todd David Beaudet ,  Radhakrishnan Balu ,  John Joseph La Scala ,  Dominika Nini Lastovickova

IPC分类号： C08G73/10 ,  C08G63/78 ,  C08G73/22 ,  C08G63/00 ,  C08G69/00 ,  C08G73/18

摘要： A family of new and novel molecules for mechanically superior two-dimensional (2D) polymers is described herein. By combining stiff carbon-containing cyclic polymer nodal units with more compliant linear polymer bridge units in an ordered, 2D repeating molecular structure it is possible to tailor the mechanical properties of 2D polymers and their assemblies to provide high stiffness, strength, and toughness. Furthermore, the inherent dimensionality of 2D polymers and their ability to be stacked into ordered and chemically interactive ensembles gives them inherent benefits in a variety of barrier and structural applications over current stiff and strong linear polymer technologies.

公开(公告)号：US20170240699A1

公开(公告)日：2017-08-24

申请号：US15510046

申请日：2015-09-01

申请人： Sulzer Chemtech AG

发明人： Liborio Ivano Costa ,  Fabio Codari

IPC分类号： C08G63/78 ,  C08G63/08

CPC分类号： C08G63/785 ,  C08G63/08

摘要： The present invention relates to a method for reducing the transition time and/or the polymer waste being out of the specification during the change from a first polymer grade to a second polymer grade in a continuous polymerization process conducted in a polymerization plant, wherein the polymerization plant comprises at least one back-mixing reactor, at least one monomer and at least one processing agent selected from the group consisting of catalysts, co-catalysts, polymerization initiators, comonomers, chain-transfer agents, branching agents, solvents and arbitrary combinations of two or more of the aforementioned agents are added before and/or during the polymerization process into the at least one back-mixing reactor, wherein the concentration of one or more of the at least one added processing agent in the feed introduced into the at least one back-mixing reactor is varied as a function of time from a first value associated with the first polymer grade to a final value associated with the second polymer grade, —the first polymer grade and the second polymer grade are one or more parameters related to the molecular weight of the polymer to be produced and/or one or more parameters related to the composition of the polymer to be produced and/or one or more parameters related to the structure of the polymer to be produced and/or one or more parameters related to the amount of the polymer to be produced, wherein during the variation of the concentration of the at least one added processing agent from the first value to the final value one or more intermediate values are adjusted, wherein at least one, preferably the majority and more preferably all of the one or more intermediate values are closer to the final value than to the first value, wherein the absolute difference between the at least one, preferably each of the majority and more preferably each of all of the one or more intermediate values from the first value is greater than the absolute difference between the final and the first value, wherein the one or more intermediate values are maintained for a time which is calculated on the basis of only residence time in the at least one back-mixing reactor and steady-state correlations between input and output of the reactor and/or of the polymerization plant, and wherein the method is performed without performing dynamic modelling.

公开(公告)号：US20170240696A1

公开(公告)日：2017-08-24

申请号：US15504219

申请日：2015-08-18

申请人： PURAC BIOCHEM BV

发明人： Gerrit GOBIUS DU SART

IPC分类号： C08G63/08 ,  C08G63/78

CPC分类号： C08G63/08 ,  C08G63/78

摘要： A method for producing a lactide block copolymer, to a lactide block copolymer and to an article including the lactide block copolymer. In particular, the instant invention relates to an improved lactide block copolymer which may be obtained by providing a polymer of a first lactide monomer including a residual amount of the first monomer, adding and polymerizing a first amount of a second monomer of opposite chirality and subsequently adding and polymerizing a second amount of the second monomer. The resulting lactide block copolymer generally has a high melting point (e.g. from 190 to 250° C.).

公开(公告)号：US20170218118A1

公开(公告)日：2017-08-03

申请号：US15489317

申请日：2017-04-17

申请人： UHDE INVENTA-FISCHER GMBH

发明人： Christopher Hess ,  Caspar Paetz

IPC分类号： C08G63/80 ,  C08G63/685 ,  C08G63/91 ,  C08G63/12 ,  C08G63/85 ,  C08G63/78 ,  C08G63/688 ,  C08G63/181

CPC分类号： C08G63/12 ,  C08G63/181 ,  C08G63/6856 ,  C08G63/6886 ,  C08G63/78 ,  C08G63/80 ,  C08G63/85 ,  C08G63/914 ,  C08G2230/00

摘要： A process for preparing a high molecular weight heteraromatic polyester or copolyester is disclosed. A process for preparing a high molecular weight heteroaromatic polyester or copolyester includes the steps of: (a) processing comonomers by mixing together to form a homogeneous solution (1) at least one heteroaromatic dicarboxylic acid having 2-12 carbon atoms or a diester or an acid anhydride derived therefrom, or a mixture thereof; (2) at least one alcohol having 2 to 12 carbon atoms and at least two hydroxyl functionalities; and (3) optionally aromatic or aliphatic dicarboxylic acids or diesters or acid anhydrides derived therefrom; (b) converting the paste/solution obtained in step a) into an esterification product containing at least one diester or at least one oligoester formed from the at least one heteroaromatic dicarboxylic acid and the at least one alcohol; and (c) polycondensing/copolycondensing the reaction product obtained from step b) under reduced pressure.

公开(公告)号：US20170153547A1

公开(公告)日：2017-06-01

申请号：US15363533

申请日：2016-11-29

申请人： Rohm and Haas Electronic Materials Korea Ltd.

发明人： Jae Hwan Sim ,  Jung Kyu Jo ,  EunHye Cho ,  Hye-Won Lee ,  Jin Hong Park ,  Eui-Hyun Ryu ,  Jae-Bong Lim

IPC分类号： G03F7/09 ,  C08G63/78 ,  C08G63/685 ,  C09D167/00 ,  C08F220/18 ,  G03F7/32 ,  C08F220/32 ,  C09D133/14 ,  C08F220/30 ,  G03F7/16 ,  G03F7/20 ,  C09D5/00 ,  C09D133/08

摘要： In a preferred aspect, organic coating compositions, particularly antireflective coating compositions for use with an overcoated photoresist, are provided that comprise 1) one or more glycidyl groups; and 2) one or more aromatic groups that each comprises two or more substituents that comprise hydroxy, thiol and/or amine moieties. Catechol-containing polymers and methods for producing same also are provided.

公开(公告)号：US20170121280A1

公开(公告)日：2017-05-04

申请号：US15317707

申请日：2015-06-08

申请人： ARKEMA FRANCE

发明人： Jean-Luc DUBOIS ,  Serge HUB ,  Alfredo DEFRANCISCI

IPC分类号： C07C407/00 ,  C08F4/36 ,  C08G63/78 ,  C08K5/14

CPC分类号： C07C407/006 ,  C08F4/36 ,  C08G63/78 ,  C08K5/05 ,  C08K5/14 ,  C07C409/22

摘要： A peroxide solution of organic peroxide in an organic solvent, including at least one peroxide in a solvent, the solvent having a hydrophobic alcohol wherein the main carbonated chain having the alcohol function includes at least six carbon atoms, the solution also including a second, hydrophilic alcohol solvent representing a maximum of 15% wt. % of the solution. Also, a thermohardenable composition including said solution, and a method and a use relating to the composition.

公开(公告)号：US20170029352A1

公开(公告)日：2017-02-02

申请号：US15223178

申请日：2016-07-29

申请人： Sadesh H. Sookraj ,  Konstantin A. Pokrovski ,  John B. Ruhl ,  Dmitry Vinograd ,  Michael A. Slowik

发明人： Sadesh H. Sookraj ,  Konstantin A. Pokrovski ,  John B. Ruhl ,  Dmitry Vinograd ,  Michael A. Slowik

IPC分类号： C07C51/09 ,  B01J19/24 ,  C07C51/10 ,  C07C51/42 ,  C08G63/78 ,  C08G63/08

摘要： Provided herein are systems, and methods of using such systems, for producing acrylic acid from ethylene oxide and carbon monoxide on an industrial scale. The production system/production process has various unit operations, including, for example, a β-propiolactone production system/production process configured to produce β-propiolactone from ethylene oxide and carbon monoxide; a polypropiolactone production system/production process configured to produce polypropiolactone from β-propiolactone; and a glacial acrylic acid production system/production process configured to produce acrylic acid with a high purity by thermolysis of polypropiolactone.

摘要翻译： 本文提供了系统和使用这种系统的方法，用于在工业规模上从环氧乙烷和一氧化碳制备丙烯酸。 生产系统/生产方法具有各种单元操作，包括例如由环氧乙烷和一氧化碳制备β-丙内酯的β-丙内酯生产系统/生产方法; 一种配制成从β-丙内酯生产聚丙内酯的聚丙内酯生产系统/制备方法; 以及通过热聚丙酸内酯制造具有高纯度的丙烯酸的冰丙烯酸生产系统/生产方法。

公开(公告)号：US09549985B2

公开(公告)日：2017-01-24

申请号：US13811986

申请日：2010-07-26

申请人： Michael Moeller ,  Lutz Asmus ,  Robert Gurny

发明人： Michael Moeller ,  Lutz Asmus ,  Robert Gurny

IPC分类号： A61K47/34 ,  A61K9/10 ,  C08L67/04 ,  C08G63/668 ,  C08G63/78 ,  C08G63/06

CPC分类号： A61K47/34 ,  A61K9/10 ,  C08G63/06 ,  C08G63/668 ,  C08G63/78 ,  C08L67/04 ,  C08L2666/66

摘要： Described herein are compositions comprising polymers prepared by melt polycondensation of 2-hydroxyalkyl acids. Methods of making and using the compositions are also disclosed.

摘要翻译： 本文描述的是包含通过2-羟烷基酸的熔融缩聚制备的聚合物的组合物。 还公开了制备和使用组合物的方法。

公开(公告)号：US09534080B2

公开(公告)日：2017-01-03

申请号：US14655793

申请日：2013-11-30

申请人： CLARIANT FINANCE (BVI) LIMITED

发明人： Ernesto Dongiovanni ,  Korada Supat

IPC分类号： C08G63/02 ,  C08G63/86 ,  C08K5/098 ,  C08K5/5393 ,  C08G63/183 ,  C08G63/78 ,  C08G63/85 ,  C08G64/00

CPC分类号： C08G63/866 ,  C08G63/183 ,  C08G63/78 ,  C08G63/85 ,  C08K5/098 ,  C08K5/5393 ,  C08L67/02

摘要： The invention relates to a process for producing a polyester resin, said process comprises the steps of (i) providing a mixture of terephthalic acid, monoethylene glycol, a polycondensation catalyst which contains antimony, a phosphorous containing stabilizer comprising a compound of the formula (I) and optionally a colour correction additive containing cobalt ions; (ii heating said mixture to a temperature of 220 to 270° C. to provide bis-hydroxyethylterephthalic acid ester; and (iii) performing polycondensation of said bis-hydroxyethylterephthalic acid ester at a temperature of between 280 and 310° C. at reduced pressure.

摘要翻译： 本发明涉及一种生产聚酯树脂的方法，所述方法包括以下步骤：（i）提供对苯二甲酸，一乙二醇，含锑的缩聚催化剂的混合物，含磷稳定剂，其包含式（I ）和任选的含有钴离子的颜色校正添加剂; （ii）将所述混合物加热至220至270℃的温度以提供双 - 羟乙基对苯二甲酸酯; 和（iii）在减压下在280-310℃的温度下进行所述双羟乙基对苯二甲酸酯的缩聚。