公开(公告)号：US5451697A

公开(公告)日：1995-09-19

申请号：US173010

申请日：1993-12-27

申请人： William D. McGhee ,  Mark D. Paster ,  Dennis P. Riley ,  Kenneth W. Ruettimann ,  A. John Solodar ,  Thomas E. Waldman

发明人： William D. McGhee ,  Mark D. Paster ,  Dennis P. Riley ,  Kenneth W. Ruettimann ,  A. John Solodar ,  Thomas E. Waldman

IPC分类号： C07C265/04 ,  C07C263/04 ,  C07C265/14

CPC分类号： C07C263/04

摘要： A process for preparing isocyanates comprising contacting carbon dioxide and a primary amine in the presence of an aprotic organic solvent and a base selected from the group consisting of a phosphazene compound, an organic, nitrogenous base and mixtures thereof, wherein the organic, nitrogenous base selected from the group consisting of guanidine compounds, amidine compounds, tertiary amines and mixtures thereof to produce the corresponding ammonium carbamate salt, reacting the ammonium carbamate salt with an anhydride dehydrating agent to produce a product stream comprising the corresponding isocyanate, the aprotic organic solvent and the base salt derived from the anhydride, separating the base salt from the product stream, recovering and recycling the base, and regenerating and recycling the anhydride dehydrating agent.

摘要翻译： 一种制备异氰酸酯的方法，包括在非质子有机溶剂和选自磷腈化合物，有机，含氮碱及其混合物的基团的存在下存在下使二氧化碳和伯胺接触，其中所选择的有机，含氮碱 由胍化合物，脒化合物，叔胺及其混合物组成的组，以产生相应的氨基甲酸铵盐，使氨基甲酸铵盐与酸酐脱水剂反应，以产生包含相应的异氰酸酯，非质子有机溶剂和 从酸酐衍生的碱盐，从产物流中分离碱盐，回收和再循环碱，再生和再循环酸酐脱水剂。

公开(公告)号：US5696290A

公开(公告)日：1997-12-09

申请号：US304322

申请日：1994-09-12

申请人： Kenneth W. Ruettimann ,  William D. McGhee ,  A. John Solodar

发明人： Kenneth W. Ruettimann ,  William D. McGhee ,  A. John Solodar

IPC分类号： C07C273/18 ,  C07C275/26 ,  C07C277/08 ,  C07C279/16

CPC分类号： C07C277/08 ,  C07C2101/14

摘要： The present invention is the novel synthesis of sterically hindered penta-substituted guanidines by a process in which (1a) an isocyanate is reacted first with a di-substituted amine or (1b) a urea is reacted with two moles of a mono-substituted amine to form a tri-substituted urea followed by (2) treatment of the tri-substituted urea with an activating agent before reacting with a second di-substituted amine in the presence of a base.

摘要翻译： 本发明是空间位阻五取代胍的新型合成方法，其中（1a）异氰酸酯首先与二取代胺反应，或（1b）使尿素与两摩尔单取代胺反应 以形成三取代的脲，然后在（2）在碱的存在下与第二二取代胺反应之前用活化剂处理三取代脲。

公开(公告)号：US6087471A

公开(公告)日：2000-07-11

申请号：US60120

申请日：1998-04-14

申请人： Devdatt L. Kurdikar ,  Fred E. Strauser ,  A. John Solodar ,  Mark D. Paster

发明人： Devdatt L. Kurdikar ,  Fred E. Strauser ,  A. John Solodar ,  Mark D. Paster

IPC分类号： C08G63/89 ,  C12P7/62 ,  C08F6/00

CPC分类号： C08G63/89 ,  C12P7/625

摘要： Polyhydroxyalkanoate (PHA) polyester is extracted from biomass by dissolving the PHA in a non-halogenated solvent which comprises a PHA-poor solvent that dissolves less than 1% of the PHA at temperatures less than the solvent boiling point, or a mixture of a PHA-poor solvent and a PHA-good solvent. Following extraction of PHA under pressure at a temperature above about 80.degree. C., typically above the boiling point of the PHA-poor solvent, PHA polymer is precipitated by cooling the PHA-enriched solvent mixture. Suitable PHA-poor solvents can include linear and branched R.sub.1 --OH alcohols and R.sub.2 --COOR.sub.3 esters where R.sub.1 =C.sub.1 -C.sub.4, R.sub.2 =H, C.sub.1,C.sub.2, or C.sub.3, and R.sub.3 =C.sub.1 -C.sub.5.

摘要翻译： 通过将PHA溶解在非卤化溶剂中，从生物质中提取聚羟基链烷酸酯（PHA）聚酯，该非卤化溶剂包含在小于溶剂沸点的温度下溶解小于1％的PHA的PHA不良溶剂，或PHA的混合物 - 溶剂和PHA-良好的溶剂。 在高于约80℃，通常高于不溶于PHA的溶剂的沸点的压力下萃取PHA后，通过冷却富含PHA的溶剂混合物沉淀PHA聚合物。 合适的不溶于PHA的溶剂可以包括直链和支链的R1-OH醇和R2-COOR3酯，其中R1 = C1-C4，R2 = H，C1，C2或C3，R3 = C1-C5。

公开(公告)号：US06043063A

公开(公告)日：2000-03-28

申请号：US60121

申请日：1998-04-14

申请人： Devdatt L. Kurdikar ,  Fred E. Strauser ,  A. John Solodar ,  Mark D. Paster ,  Jawed Asrar

发明人： Devdatt L. Kurdikar ,  Fred E. Strauser ,  A. John Solodar ,  Mark D. Paster ,  Jawed Asrar

IPC分类号： C08G63/06 ,  C08G63/89 ,  C12P7/62 ,  C12P7/42 ,  C12N1/20

CPC分类号： C08G63/89 ,  C12P7/625 ,  C08G63/06

摘要： Polyhydroxyalkanoate (PHA) polyester is extracted from biomass by dissolving the PHA in a non-halogenated solvent which comprises a PHA-good solvent or a mixture thereof. Suitable PHA-good solvents can be selected from the disclosed alcohols, esters, amides and ketones. The PHA can be recovered, for example, by cooling, by solvent evaporation, or by addition of a PHA-poor solvent, wherein the PHA-poor solvent preferably dissolves less than about 1% (w/v) of the PHA at a temperature below the solvent boiling point. Preferred PHA types for use in the invention are poly (hydroxybutyrate-co-hydroxyvalerate), poly(3-hydroxybutyrate-co-4-hydroxybutyrate), and polymers/copolymers of hydroxyterminated polyhydroxybutyrate.

摘要翻译： 通过将PHA溶解在包含PHA良溶剂或其混合物的非卤化溶剂中，从生物质中提取聚羟基链烷酸酯（PHA）聚酯。 合适的PHA-良好溶剂可以选自所公开的醇，酯，酰胺和酮。 可以例如通过冷却，通过溶剂蒸发或通过加入不溶于PHA的溶剂来回收PHA，其中PHA不良溶剂优选在温度下溶解小于约1％（w / v）的PHA 低于溶剂沸点。 用于本发明的优选PHA类型是聚（羟基丁酸酯 - 共 - 羟基戊酸酯），聚（3-羟基丁酸酯 - 共-4-羟基丁酸酯）和羟基封端的聚羟基丁酸酯的聚合物/共聚物。

公开(公告)号：US4215065A

公开(公告)日：1980-07-29

申请号：US451

申请日：1979-01-02

申请人： A. John Solodar

发明人： A. John Solodar

IPC分类号： C07C51/493 ,  C11C1/04 ,  C11C3/02

CPC分类号： C07C51/493 ,  C07C67/60

摘要： Differential esterification or hydrolysis is utilized to effect separations of isomeric acids or esters.

摘要翻译： 利用差示酯化或水解来分解异构酸或酯。

公开(公告)号：US4760186A

公开(公告)日：1988-07-26

申请号：US907278

申请日：1986-09-15

申请人： A. John Solodar

发明人： A. John Solodar

IPC分类号： C07C209/60 ,  B01J23/44 ,  C07B61/00 ,  C07C67/00 ,  C07C209/00 ,  C07C209/02 ,  C07C211/53 ,  C07C211/54 ,  C07C85/00

CPC分类号： C07C209/02

摘要： A process for the preparation of substituted aromatic amines comprising (1) contacting a primary aromatic amine with an oxidizing agent in a homogeneous solution containing water, an oxidizable water-miscible organic solvent and a base, and (2) reducing the solution with a reducing agent to produce the substituted aromatic amine.

摘要翻译： 一种制备取代芳族胺的方法，包括（1）在含水，可氧化水可混溶的有机溶剂和碱的均匀溶液中使伯芳基胺与氧化剂接触，和（2）用还原剂还原溶液 试剂以产生取代的芳族胺。