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公开(公告)号：US09249253B2
公开(公告)日：2016-02-02
申请号：US12442481
申请日：2007-09-27
申请人： Philippe Dubois , Philippe Coszach , Gloria Vendrell , Philippe Degee , Michael Alexandre , Ibrahim Barakat , Jean Marie Raquez
发明人： Philippe Dubois , Philippe Coszach , Gloria Vendrell , Philippe Degee , Michael Alexandre , Ibrahim Barakat , Jean Marie Raquez
CPC分类号： C08G18/4283 , C08G18/0895 , C08G18/10 , C08G18/3206 , C08G18/3228 , C08G18/3231 , C08G18/428 , C08G2230/00 , C08G18/3225
摘要： The process of obtaining a polylactide-urethane copolymer is described which includes contacting an α, ω dihydroxyl polylactide prepolymer of general formula I wherein X is NH or O, R is an alkyl or an aryl group, n and n′ are integer numbers which are substantially the same and are in the range from 20 to 140, with a diisocyanate compound of general formula II O═C═N—R′—N═C═O wherein R′ is an alkyl or an aryl group and with an amine or an alcohol of general formula III R″X′]2 wherein R″ is an alkyl or an aryl group and X′ is NH2 or OH, and with the proviso that at least one of R or R″ is an aryl group.
摘要翻译： 描述了获得聚丙交酯 - 氨基甲酸酯共聚物的方法，该方法包括使通式I的α，ω二羟基聚丙交酯预聚物，其中X是NH或O，R是烷基或芳基，n和n'是整数， 基本相同并且在20至140的范围内，与通式II的二异氰酸酯化合物O = C = N-R'-N = C = O，其中R'为烷基或芳基，并与胺或 通式III R“X”] 2的醇，其中R“是烷基或芳基，X'是NH 2或OH，条件是R”或R“中的至少一个是芳基。
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公开(公告)号：US20100113734A1
公开(公告)日：2010-05-06
申请号：US12442478
申请日：2007-09-27
申请人： Philippe Dubois , Philippe Coszach , Gloria Vendrell , Fabrice Stassin , Caroline Jourdanne , Luc Lienard , Philippe Degee , Ibrahim Barakat , Michael Alexandre , Jean Marie Raquez
发明人： Philippe Dubois , Philippe Coszach , Gloria Vendrell , Fabrice Stassin , Caroline Jourdanne , Luc Lienard , Philippe Degee , Ibrahim Barakat , Michael Alexandre , Jean Marie Raquez
IPC分类号： C08G18/00
CPC分类号： C08G18/0895 , C08G18/244 , C08G18/428 , C08G18/73 , C08G63/08 , C08G63/6852 , C08G63/912 , C08G2230/00
摘要： A process for producing polylactide-urethane copolymers, which comprises the step of contacting a polylactide having terminal hydroxyl groups, produced by contacting at least one lactide monomer with a diol or diamine, with a diisocyanate compound optionally in the presence of a second diol or diamine in the presence of a catalytic system under polymerisation conditions characterised in that the polylactide and the polylactide-urethane copolymers are produced by reactive extrusion.
摘要翻译： 一种生产聚丙交酯 - 氨基甲酸酯共聚物的方法，其包括使具有末端羟基的聚交酯与通过使二醇或二胺与至少一种丙交酯单体接触的方法与二异氰酸酯化合物任选地在第二种二醇或二胺 在聚合条件下的催化体系存在下，其特征在于聚丙交酯和聚丙交酯 - 聚氨酯共聚物通过反应性挤出制备。
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公开(公告)号：US20100016538A1
公开(公告)日：2010-01-21
申请号：US12442481
申请日：2007-09-27
申请人： Philippe Dubois , Philippe Coszach , gloria Vendrell , Philippe Degee , Michael Alexandre , Ibrahim Barakat , Jean Marie Raquez
发明人： Philippe Dubois , Philippe Coszach , gloria Vendrell , Philippe Degee , Michael Alexandre , Ibrahim Barakat , Jean Marie Raquez
IPC分类号： C08G18/34
CPC分类号： C08G18/4283 , C08G18/0895 , C08G18/10 , C08G18/3206 , C08G18/3228 , C08G18/3231 , C08G18/428 , C08G2230/00 , C08G18/3225
摘要： A polylactide-urethane copolymer obtainable by a process, which comprises the step of contacting: an α, ω dihydroxyl polylactide prepolymer of general formula I wherein: X is NH or O, R is an alkyl or an aryl group, n and n′ are integer numbers which are substantially the same and which are comprised in the range from 20 to 140, a diisocyanate compound of general formula II O═C═N—R′—N═C═O wherein: R′ is an alkyl or an aryl group and an amine or an alcohol of general formula III R″[X′]2 wherein: R″ is an alkyl or an aryl group and X′ is NH2 or OH with the proviso that at least one of R or R″ is an aryl group
摘要翻译： 可通过以下方法获得的聚丙交酯 - 氨基甲酸酯共聚物，该方法包括使通式I的α，ω-二羟基聚丙交酯预聚物与下列步骤接触：其中：X为NH或O，R为烷基或芳基，n和n'为 基本相同且为20〜140的整数，通式II的二异氰酸酯化合物OCN-R'-NCO其中：R'为烷基或芳基，以及胺或醇 通式III R''[X'] 2其中：R“是烷基或芳基，X'是NH 2或OH，条件是R或R”中的至少一个是芳基
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公开(公告)号：US08471062B2
公开(公告)日：2013-06-25
申请号：US13141920
申请日：2009-11-18
申请人： Philippe Coszach , Jean-Christophe Bogaert , Pierre-Antoine Mariage , Angelo Chianese , Maria-Paola Parisi
发明人： Philippe Coszach , Jean-Christophe Bogaert , Pierre-Antoine Mariage , Angelo Chianese , Maria-Paola Parisi
IPC分类号： C07C51/64
摘要： Method for purifying lactic acid by crystallization in one or a plurality of steps, characterized in that crystals are formed from an impure aqueous lactic acid solution having a color of >500 Hazen, at a concentration between 85 and 95% by controlling the lactic acid oligomer content expressed in terms of a relative monomer content greater than 80% and controlling the degree of supersaturation of the solution between 1 and 60% in order to obtain lactic acid crystals having a specific surface area by mass of
摘要翻译： 通过在一个或多个步骤中通过结晶纯化乳酸的方法，其特征在于通过控制乳酸低聚物从浓度为85-95％之间的颜色为> 500 Hazen的不纯的乳酸水溶液形成晶体 以相对单体含量大于80％表示的含量，并将溶液的过饱和度控制在1〜60％之间，以获得比表面积质量<0.05m 2 / g的乳酸晶体。
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公开(公告)号：US20110319660A1
公开(公告)日：2011-12-29
申请号：US13141920
申请日：2009-11-18
申请人： Philippe Coszach , Jean-Christophe Bogaert , Pierre-Antoine Mariage , Angelo Chianese , Maria-Paola Parisi
发明人： Philippe Coszach , Jean-Christophe Bogaert , Pierre-Antoine Mariage , Angelo Chianese , Maria-Paola Parisi
IPC分类号： C07C51/43
摘要： Method for purifying lactic acid by crystallisation in one or a plurality of steps, characterised in that crystals are formed from an impure aqueous lactic acid solution having a colour of >500 Hazen, at a concentration between 85 and 95% by controlling the lactic acid oligomer content expressed in terms of a relative monomer content greater than 80% and controlling the degree of supersaturation of the solution between 1 and 60% in order to obtain lactic acid crystals having a specific surface area by mass of
摘要翻译： 通过在一个或多个步骤中通过结晶纯化乳酸的方法，其特征在于通过控制乳酸低聚物从浓度为85％至95％之间的颜色为> 500 Hazen的不纯的乳酸水溶液形成晶体 以相对单体含量大于80％表示的含量，并将溶液的过饱和度控制在1〜60％之间，以获得比表面积质量<0.05m 2 / g的乳酸晶体。
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公开(公告)号：US20110300220A1
公开(公告)日：2011-12-08
申请号：US13141917
申请日：2009-11-18
IPC分类号： A61K9/14 , A61P3/02 , A61K31/191
CPC分类号： A61K31/191 , A23V2002/00 , A61K9/14 , A61K9/1688 , A23V2200/238 , A23V2200/254 , A23V2250/1578
摘要： Solid calcium lactate in the form of substantially spherical particles, characterised in that the spherical particles have a particle size distribution such that most of the particles are between 280 and 550 microns in size and the calcium lactate can be rapidly dissolved in water.
摘要翻译： 呈基本上为球形颗粒形式的固体乳酸钙，其特征在于，球形颗粒具有粒径分布，使得大部分颗粒的尺寸为280-550微米，乳酸钙可以快速溶于水中。
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公开(公告)号：US06800767B2
公开(公告)日：2004-10-05
申请号：US10239584
申请日：2003-01-13
IPC分类号： C07D40700
CPC分类号： C07D319/12
摘要： The invention concerns a method for purifying the dimeric cyclic esters of lactic (or glycolic) acid starting from a raw lactide (or glycolide) comprising impurities, the method consisting in: extractive and controlled crystallization of the raw lactide, in aqueous medium, controlling the geometry of the formed crystals and carrying out a separation of phases into lactide and impurities; separation of the resulting suspension of crystals, into a phase poor in lactide and loaded with impurities, and a wet cake rich in lactide crystals; drying the resulting wet cake; and recrystallization in melted medium of the resulting dried impure lactide and recuperating the purified lactide.
摘要翻译： 本发明涉及从含有杂质的原料丙交酯（或乙交酯）开始纯化乳酸（或乙醇酸）的二聚环状酯的方法，该方法包括：在水性介质中萃取和控制结晶，控制 形成晶体的几何形状，并进行相分离为丙交酯和杂质; 将所得结晶悬浮液分离成丙交酯相不良并装载杂质，富含丙交酯晶体的湿滤饼; 干燥所得湿饼; 并在所得干燥的不纯的丙交酯的熔融介质中重结晶并使纯化的丙交酯恢复。
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公开(公告)号：US08614338B2
公开(公告)日：2013-12-24
申请号：US13389592
申请日：2010-07-19
申请人： Philippe Coszach , Jonathan Willocq
发明人： Philippe Coszach , Jonathan Willocq
IPC分类号： C07D319/00
CPC分类号： C08J11/22 , C07C67/03 , C08J2367/04 , Y02W30/706 , C07C69/68
摘要： The present invention relates to a method for the stereospecific chemical recycling of a mixture of polymers based on polylactic acid PLA, in order to reform the monomer thereof or one of the derivatives thereof. The latter may enter the traditional lactate market or once again serve as a raw material for synthesizing PLA.
摘要翻译： 本发明涉及一种基于聚乳酸PLA的聚合物混合物的立体特异性化学再循环方法，以改性其单体或其衍生物之一。 后者可能进入传统的乳酸市场，或再次成为PLA合成原料。
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公开(公告)号：US20110319588A1
公开(公告)日：2011-12-29
申请号：US13143379
申请日：2010-01-15
IPC分类号： C08G63/08
摘要： Method of polymerization for producing polylactic acid of configuration L or D, with number-average molecular weight between 60 000 and 200 000 having an insertion defect rate between 0 and 0.5 wt. % of polylactic acid and a racemization defect rate between 0 and 2.5 wt. % of polylactic acid, characterized in that the method is a bulk process comprising contacting, at a temperature between 170 and 200° C. and for a reaction time between 5 and 75 minutes, the corresponding lactide of stereochemical configuration L-L or D-D having an optical purity of L or D of at least 99.5 wt. % with at least one catalyst in the presence of an initiator to form poly-L-lactic acid or poly-D-lactic acid.
摘要翻译： 构型L或D的聚乳酸的聚合方法，其数均分子量为60000至200000，插入缺陷率为0至0.5重量％。 ％的聚乳酸和外消旋化缺陷率在0和2.5重量％之间。 ％的聚乳酸，其特征在于该方法是本体方法，包括在170和200℃之间的温度和5至75分钟的反应时间之间接触相应的具有光学性质的立体化学构型LL或DD的丙交酯 L或D的纯度至少为99.5wt。 ％与至少一种催化剂在引发剂存在下形成聚-L-乳酸或聚-D-乳酸。
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公开(公告)号：US20110160480A1
公开(公告)日：2011-06-30
申请号：US13056292
申请日：2009-07-16
IPC分类号： C07C67/08
摘要： Continuous method for obtaining a lactic ester, characterised in that it comprises the following steps: a) esterification reaction of a composition comprising an alcohol in the presence of a composition comprising lactic acid in excess, b) extraction of a vapour phase from this reaction medium, containing lactic ester, alcohol, water and traces of lactic acid; c) distillation of the vapour phase obtained at step b) in order to recover the lactic ester, alcohol and water at the top; d) distillation of the fraction obtained at step c) in order to recover the purified lactic ester at the bottom.
摘要翻译： 用于获得乳酸酯的连续方法，其特征在于其包括以下步骤：a）在包含过量的乳酸的组合物存在下，包含醇的组合物的酯化反应，b）从该反应介质中提取气相 ，含有乳酸酯，醇，水和痕量的乳酸; c）蒸馏步骤b）获得的气相，以回收顶部的乳酸酯，醇和水; d）蒸馏步骤c）获得的级分，以便在底部回收纯化的乳酸酯。
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