-
21.发明授权Continuous process for the manufacture of a purified lactide from esters of lactic acid 失效用于从乳酸的酯制造纯化的丙交酯的连续方法
公开(公告)号：US5247059A
公开(公告)日：1993-09-21
申请号：US935566
申请日：1992-08-24
申请人： Patrick R. Gruber , Eric S. Hall , Jeffrey J. Kolstad , Matthew L. Iwen , Richard D. Benson , Ronald L. Borchardt
发明人： Patrick R. Gruber , Eric S. Hall , Jeffrey J. Kolstad , Matthew L. Iwen , Richard D. Benson , Ronald L. Borchardt
摘要： A process for the continuous production of substantially purified lactide and lactide polymers from an ester of lactic acid including the steps of forming crude lactide in the presence of a catalyst means to form a condensation reaction by-product and polylactic acid and depolymerizing the polylactic acid molecules followed by subsequent purification of the crude lactide in a distillation system. A purified lactide is then polymerized.
摘要翻译： 一种从乳酸酯连续制备基本上纯化的丙交酯和丙交酯聚合物的方法，包括在催化剂存在下形成粗丙交酯的步骤，以形成缩合反应副产物和聚乳酸，并解聚聚乳酸分子 随后在蒸馏系统中随后纯化粗丙交酯。 然后将纯化的丙交酯聚合。
-
公开(公告)号：US08304588B2
公开(公告)日：2012-11-06
申请号：US13344464
申请日：2012-01-05
申请人： William A. Evanko , Aharon M. Eyal , David A. Glassner , Fudu Miao , Aristos A. Aristidou , Kent Evans , Patrick R. Gruber , Andrew C. Hawkins
发明人： William A. Evanko , Aharon M. Eyal , David A. Glassner , Fudu Miao , Aristos A. Aristidou , Kent Evans , Patrick R. Gruber , Andrew C. Hawkins
IPC分类号： C07C29/76
CPC分类号： C12M43/00 , C07C29/80 , C07C29/86 , C12C11/11 , C12M45/20 , C12P7/04 , C12P7/16 , Y02E50/10 , Y02E50/17 , Y10T29/49826 , C07C31/12
摘要： This invention is directed to methods for recovery of C3-C6 alcohols from dilute aqueous solutions, such as fermentation broths. Such methods provide improved volumetric productivity for the fermentation and allows recovery of the alcohol. Such methods also allow for reduced energy use in the production and drying of spent fermentation broth due to increased effective concentration of the alcohol product by the simultaneous fermentation and recovery process which increases the quantity of alcohol produced and recovered per quantity of fermentation broth dried. Thus, the invention allows for production and recovery of C3-C6 alcohols at low capital and reduced operating costs.
-
23.发明授权公开(公告)号：US06217630B1
公开(公告)日：2001-04-17
申请号：US09303703
申请日：1999-05-03
IPC分类号： C05C900
CPC分类号： C05G3/0047 , C05C9/00
摘要： A conditioned fertilizer product is provided. The conditioned fertilizer product includes urea containing fertilizer and lactic acid derived conditioning agent. The conditioning agent is preferably included at a concentration of between about 0.1% by wt. and about 5% by wt. The conditioning agent is preferably lactic acid, lactide, and/or polylactide. A method for conditioning fertilizer is provided including a step of mixing urea containing fertilizer and conditioning agent at a temperature of between about 135° C. and about 145° C. A method for using conditioned fertilizer product is provided.
摘要翻译： 提供有条件的肥料产品。 调理肥料包括含有肥料的尿素和乳酸衍生的调理剂。 调理剂优选以约0.1重量％的浓度包含。 和约5重量％。 调理剂优选为乳酸，丙交酯和/或聚丙交酯。 提供了一种调理肥料的方法，包括在约135℃至约145℃的温度下混合含有肥料和调理剂的尿素的步骤。提供了使用调理肥料的方法。
-
公开(公告)号：US5585191A
公开(公告)日：1996-12-17
申请号：US527705
申请日：1995-09-13
申请人： Patrick R. Gruber , Jeffrey J. Kolstad , Christopher M. Ryan , Eric S. Hall , Robin S. Eichen Conn
发明人： Patrick R. Gruber , Jeffrey J. Kolstad , Christopher M. Ryan , Eric S. Hall , Robin S. Eichen Conn
IPC分类号： C08K3/16 , A61L15/26 , A61L31/06 , C08G63/08 , C08G63/88 , C08G63/90 , C08J5/18 , C08K3/22 , C08K3/26 , C08K3/30 , C08K3/34 , C08K5/10 , C08K5/13 , C08K5/1515 , C08K5/1575 , C08K5/29 , C08K5/51 , C08K5/524 , C08K5/54 , C08L67/00 , C08L67/04 , C08L101/00 , C08L101/16 , C09D167/04 , D01F6/62 , D04H1/42 , D21H19/28 , D21H19/62 , B32B27/36 , B32B9/04
CPC分类号： C08J5/18 , A61L15/26 , A61L31/06 , C08G63/08 , C08G63/90 , C08L67/04 , C09D167/04 , D01F6/625 , D04H1/42 , D21H19/28 , D21H19/62 , C08G2230/00 , C08J2367/04 , C08L101/00 , Y10T428/31504 , Y10T428/31786 , Y10T428/3179 , Y10T428/31808 , Y10T428/31819 , Y10T428/31993
摘要： An amorphous film comprised of a lactide polymer. The lactide polymer comprises a plurality of poly(lactide) polymer chains, residual lactide in concentration of less than about 2 percent and water in concentration of less than about 2000 parts-per-million. A process for manufacturing an amorphous film with the lactide polymer composition is also disclosed.
-
公开(公告)号：US5539081A
公开(公告)日：1996-07-23
申请号：US445775
申请日：1995-05-22
申请人： Patrick R. Gruber , Jeffrey J. Kolstad , Eric S. Hall , Robin S. Eichen Conn , Christopher M. Ryan
发明人： Patrick R. Gruber , Jeffrey J. Kolstad , Eric S. Hall , Robin S. Eichen Conn , Christopher M. Ryan
IPC分类号： C08K3/16 , A61L15/26 , A61L31/06 , C08G63/08 , C08G63/88 , C08G63/90 , C08J5/18 , C08K3/22 , C08K3/26 , C08K3/30 , C08K3/34 , C08K5/10 , C08K5/13 , C08K5/1515 , C08K5/1575 , C08K5/29 , C08K5/51 , C08K5/524 , C08K5/54 , C08L67/00 , C08L67/04 , C08L101/00 , C08L101/16 , C09D167/04 , D01F6/62 , D04H1/42 , D21H19/28 , D21H19/62
CPC分类号： C08J5/18 , A61L15/26 , A61L31/06 , C08G63/08 , C08G63/90 , C08L67/04 , C09D167/04 , D01F6/625 , D04H1/42 , D21H19/28 , D21H19/62 , C08G2230/00 , C08J2367/04 , C08L101/00 , Y10T428/31504 , Y10T428/31786 , Y10T428/3179 , Y10T428/31808 , Y10T428/31819 , Y10T428/31993
摘要： A lactide polymer composition combining compositional and purity limitations and catalyst optimization or addition of stabilizing agents resulting in a melt-stable polymer is disclosed. The melt-stable lactide polymer comprises a plurality of polylactide polymer chains, residual lactide in concentration of less than 2 percent and water in concentration of less than 1000 parts-per-million. A stabilizing agent in an amount sufficient to reduce depolymerization of the lactide polymer during melt-processing or alternatively, control of catalyst level at a molar ratio of monomer to catalyst greater than 3000:1 is also included in the melt-stable composition. A process for manufacture of a melt-stable lactide polymer composition includes polymerizing a lactide mixture and adding stabilizing agents sufficient to reduce depolymerization of the polylactide during melt-processing, followed by devolatilizing the polylactide to remove monomer and water.
-
公开(公告)号：US5536807A
公开(公告)日：1996-07-16
申请号：US110394
申请日：1993-08-23
IPC分类号： C08K3/16 , A61L15/26 , A61L31/06 , C08G63/08 , C08G63/88 , C08G63/90 , C08J5/18 , C08K3/22 , C08K3/26 , C08K3/30 , C08K3/34 , C08K5/10 , C08K5/13 , C08K5/1515 , C08K5/1575 , C08K5/29 , C08K5/51 , C08K5/524 , C08K5/54 , C08L67/00 , C08L67/04 , C08L101/00 , C08L101/16 , C09D167/04 , D01F6/62 , D04H1/42 , D21H19/28 , D21H19/62 , B32B9/04 , B32B27/36
CPC分类号： C08J5/18 , A61L15/26 , A61L31/06 , C08G63/08 , C08G63/90 , C08L67/04 , C09D167/04 , D01F6/625 , D04H1/42 , D21H19/28 , D21H19/62 , C08G2230/00 , C08J2367/04 , C08L101/00 , Y10T428/31504 , Y10T428/31786 , Y10T428/3179 , Y10T428/31808 , Y10T428/31819 , Y10T428/31993
摘要： A semi-crystalline film comprised of a lactide polymer. The lactide polymer comprises a plurality of poly(lactide) polymer chains, residual lactide in concentration of less than about 5 percent and water in concentration of less than about 2000 parts-per-million. A process for manufacturing a semi-crystalline film with the lactide polymer composition is also disclosed.
-
27.发明授权Melt-stable amorphous lactide polymer film and process for manufacturing thereof 失效熔融稳定的无定形丙交酯聚合物膜及其制造方法
公开(公告)号：US5484881A
公开(公告)日：1996-01-16
申请号：US110424
申请日：1993-08-23
申请人： Patrick R. Gruber , Jeffrey J. Kolstad , Christopher M. Ryan , Eric S. Hall , Robin S. Eichen Conn
发明人： Patrick R. Gruber , Jeffrey J. Kolstad , Christopher M. Ryan , Eric S. Hall , Robin S. Eichen Conn
IPC分类号： C08K3/16 , A61L15/26 , A61L31/06 , C08G63/08 , C08G63/88 , C08G63/90 , C08J5/18 , C08K3/22 , C08K3/26 , C08K3/30 , C08K3/34 , C08K5/10 , C08K5/13 , C08K5/1515 , C08K5/1575 , C08K5/29 , C08K5/51 , C08K5/524 , C08K5/54 , C08L67/00 , C08L67/04 , C08L101/00 , C08L101/16 , C09D167/04 , D01F6/62 , D04H1/42 , D21H19/28 , D21H19/62 , B32B9/04 , B32B27/36
CPC分类号： C08J5/18 , A61L15/26 , A61L31/06 , C08G63/08 , C08G63/90 , C08L67/04 , C09D167/04 , D01F6/625 , D04H1/42 , D21H19/28 , D21H19/62 , C08G2230/00 , C08J2367/04 , C08L101/00 , Y10T428/31504 , Y10T428/31786 , Y10T428/3179 , Y10T428/31808 , Y10T428/31819 , Y10T428/31993
摘要： An amorphous film comprised of a lactide polymer. The lactide polymer comprises a plurality of poly(lactide) polymer chains, residual lactide in concentration of less than about 2 percent and water in concentration of less than about 2000 parts-per-million. A process for manufacturing an amorphous film with the lactide polymer composition is also disclosed.
摘要翻译： 由丙交酯聚合物构成的无定形膜。 丙交酯聚合物包含多个聚（丙交酯）聚合物链，浓度小于约2％的残余丙交酯和浓度小于约2000ppm的水。 还公开了用丙交酯聚合物组合物制造非晶膜的方法。
-
公开(公告)号：US5247058A
公开(公告)日：1993-09-21
申请号：US927149
申请日：1992-08-07
申请人： Patrick R. Gruber , Eric S. Hall , Jeffrey J. Kolstad , Matthew L. Iwan , Richard D. Benson , Ronald L. Borchardt
发明人： Patrick R. Gruber , Eric S. Hall , Jeffrey J. Kolstad , Matthew L. Iwan , Richard D. Benson , Ronald L. Borchardt
摘要： A process for the continuous production of polylactide polymers from lactic acid which incorporates removal of water or a solvent carrier to concentrate the lactic acid feed followed by polymerization to a low-molecular-weight prepolymer. This prepolymer is fed to a reactor in which a catalyst is added to facilitate generation of lactide, the depolymerization product of polylactic acid. The lactide generated is continuously fed to a distillation system as a liquid or vapor wherein water and other impurities are removed. The resultant purified liquid lactide is fed directly to a polymerization process.
-
29.发明授权Continuous process for manufacture of lactide polymers with controlled optical purity 失效用于制造具有受控光学纯度的丙交酯聚合物的连续方法
公开(公告)号：US5142023A
公开(公告)日：1992-08-25
申请号：US825059
申请日：1992-01-24
申请人： Patrick R. Gruber , Eric S. Hall , Jeffrey J. Kolstad , Matthew L. Iwen , Richard D. Benson , Ronald L. Borchardt
发明人： Patrick R. Gruber , Eric S. Hall , Jeffrey J. Kolstad , Matthew L. Iwen , Richard D. Benson , Ronald L. Borchardt
摘要： A process for the continuous production of polylactide polymers from lactic acid which incorporates removal of water or a solvent carrier to concentrate the lactic acid feed followed by polymerization to a low-molecular-weight prepolymer. This prepolymer is fed to a reactor in which a catalyst is added to facilitate generation of lactide, the depolymerization product of polylactic acid. The lactide generated is continuously fed to a distillation system as a liquid or vapor wherein water and other impurities are removed. The resultant purified liquid lactide is fed directly to a polymerization process.
摘要翻译： 从乳酸连续生产聚丙交酯聚合物的方法，该方法结合去除水或溶剂载体以将乳酸进料浓缩，然后聚合成低分子量预聚物。 将该预聚物加入反应器中，在该反应器中加入催化剂以促进产生丙交酯，即聚乳酸的解聚产物。 生成的丙交酯以其中除去水和其它杂质的液体或蒸气连续供入蒸馏系统。 将所得纯化液体丙交酯直接进料至聚合过程。
-
公开(公告)号：US20120064590A1
公开(公告)日：2012-03-15
申请号：US13302775
申请日：2011-11-22
申请人： William A. Evanko , Aharon M. Eyal , David A. Glassner , Fudu Miao , Aristos A. Aristidou , Kent Evans , Patrick R. Gruber , Andrew C. Hawkins
发明人： William A. Evanko , Aharon M. Eyal , David A. Glassner , Fudu Miao , Aristos A. Aristidou , Kent Evans , Patrick R. Gruber , Andrew C. Hawkins
IPC分类号： C12P7/16
CPC分类号： C12M43/00 , C07C29/80 , C07C29/86 , C12C11/11 , C12M45/20 , C12P7/04 , C12P7/16 , Y02E50/10 , Y02E50/17 , Y10T29/49826 , C07C31/12
摘要： This invention is directed to methods for recovery of C3-C6 alcohols from dilute aqueous solutions, such as fermentation broths. Such methods provide improved volumetric productivity for the fermentation and allows recovery of the alcohol. Such methods also allow for reduced energy use in the production and drying of spent fermentation broth due to increased effective concentration of the alcohol product by the simultaneous fermentation and recovery process which increases the quantity of alcohol produced and recovered per quantity of fermentation broth dried. Thus, the invention allows for production and recovery of C3-C6 alcohols at low capital and reduced operating costs.
摘要翻译： 本发明涉及从稀释的水溶液如发酵液中回收C3-C6醇的方法。 这样的方法提供了用于发酵的改进的体积生产率并允许酒精回收。 由于通过同时发酵和回收过程增加了醇产物的有效浓度，所以这种方法还允许在用过的发酵液的生产和干燥中减少能量消耗，这增加了每一批发酵液干燥产生和回收的醇的量。 因此，本发明允许以低资本生产和回收C3-C6醇，降低运行成本。
-
-
-
-
-
-
-
-
-
搜索结果
53 条记录 (耗时 0.055 秒)
