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1. 发明授权

US06754979B2 Device for drying and thermally treating granulates with an inert gas stream 有权
标题翻译：用惰性气流干燥和热处理颗粒的装置
公开(公告)号：US06754979B2
公开(公告)日：2004-06-29
申请号：US10130250
申请日：2002-05-16
申请人： Alfons Ludwig , Ragnhild Pille , Gunter Pipper
发明人： Alfons Ludwig , Ragnhild Pille , Gunter Pipper
IPC分类号： F26B308
CPC分类号： F26B21/14 , B29B13/065 , B29B2009/168 , B29K2067/00 , B29K2077/00 , F26B17/122
摘要： An apparatus (1) is proposed for drying and heat-treating pellets with a stream of inert gas, wherein the apparatus has a cuboid base unit (2) with a feed (3) for the pellets in its upper part and an outlet (4) in its lower part, with a feed (5) on one lateral surface and with an exhaust base (6) on the opposite lateral surface of the cuboid base unit (2) for the stream of inert gas, and also with distribution and retention equipment (7, 8) in the region of the feed (5) and, respectively, of the exhaust (6) for the stream of inert gas, where each of these extends essentially over the entire vertical cross section of the cuboid base unit (2).
摘要翻译：提出了一种用惰性气体流干燥和热处理颗粒的装置（1），其中该装置具有一个长方体底座单元（2），其上部具有用于颗粒的进料（3）和一个出口（4））在其下部具有一个侧表面上的进料（5）和用于惰性气体流的长方体基部单元（2）的相对侧表面上的排气基底（6），并且还具有分布和保持在进料（5）的区域和分别用于惰性气体流的排气（6）的区域中的设备（7,8），其中每个设备基本上在长方体基座单元的整个垂直横截面上延伸（ 2）。

2. 发明授权

US06703475B1 Method for the continuous production of copolyamides based on a lactam (I), a diamine (II) and a dicarboxylic acid (III) 有权
标题翻译：基于内酰胺（I），二胺（II）和二羧酸（III）的共聚酰胺的连续生产方法，
公开(公告)号：US06703475B1
公开(公告)日：2004-03-09
申请号：US10130044
申请日：2002-05-13
申请人： Jürgen Deininger , Walter Götz , Alfons Ludwig , Gunter Pipper
发明人： Jürgen Deininger , Walter Götz , Alfons Ludwig , Gunter Pipper
IPC分类号： C08G6904
CPC分类号： C08G69/04 , C08G69/28 , C08G69/36 , C08G69/48 , D01F6/80
摘要： A process for continuous production of copolyamides based on a lactam (I), a diamine (II) and a dicarboxylic acid (III) comprises reacting a mixture (IV) comprising a diamine (II), a dicarboxylic acid (III) and water in a first reaction zone at a pressure in the range from 1.3*105 to 2.5*105 Pa in the entry zone of the reaction zone and at a temperature above the melting point of polymer (V) to a conversion, based on the molar amounts of diamine (II) and dicarboxylic acid (III), of at least 80% to form a polymer (V), reacting a mixture (VI) comprising lactam (I) and water in a second reaction zone at a pressure in the range from 5*105 to 40*105 Pa and at a temperature above the melting point of polymer (VII) to a conversion, based on the molar amount of lactam (I), of at least 80% to form a polymer (VII), then reacting polymer (V) and polymer (VII) with each other in a third reaction zone at a pressure in the range from 1*105 to 1.5*105 Pa in the entry zone of the reaction zone at temperatures above the melting point of polymer (VIII) to form a polymer (VIII), said polymer (VIII) having a 95° C. water extractables content, based on lactam (I), diamine (II) and dicarboxylic acid (III), of not more than 10% by weight, and then extracting the polymer (VIII) with water to obtain the copolyamide.
摘要翻译：基于内酰胺（I），二胺（II）和二羧酸（III）连续生产共聚酰胺的方法包括将包含二胺（II），二羧酸（III）和水的混合物（IV）第一反应区，在反应区的进入区中在1.3×10 5至2.5×10 5 Pa范围内的压力下，在高于聚合物（V）熔点的温度下，以基于使二胺（II）和二羧酸（III）的摩尔量为至少80％，以形成聚合物（V），使第二反应区中含有内酰胺（I）和水的混合物（VI）在压力在5×10 5至40×10 5 Pa的范围内，并且在高于聚合物（VII）的熔点的温度下，基于内酰胺（I）的摩尔量，至少80 ％以形成聚合物（VII），然后在第三反应区中将聚合物（V）和聚合物（VII）彼此反应，在1×10 5至1.5×10 5 Pa的压力范围内反应区的进入区 e在高于聚合物（VIII）熔点的温度下形成聚合物（VIII），基于内酰胺（I），二胺（II）和二羧酸（II），所述聚合物（VIII）具有95℃的可水提取物含量 III），不大于10重量％，然后用水萃取聚合物（VIII），得到共聚酰胺。

3. 发明授权

US06429279B1 Preparation of polyamides 有权
标题翻译：聚酰胺的制备
公开(公告)号：US06429279B1
公开(公告)日：2002-08-06
申请号：US09554216
申请日：2000-05-11
申请人： Hans-Harald Hünger , Alfons Ludwig , Rainer Neuberg , Gunter Pipper , Thomas Sauer , Axel Wilms
发明人： Hans-Harald Hünger , Alfons Ludwig , Rainer Neuberg , Gunter Pipper , Thomas Sauer , Axel Wilms
IPC分类号： C08G6904
CPC分类号： C08G69/46 , C08G69/04 , C08G69/16
摘要： The disclosure is a process for preparing polyamides by concentrating the wash water extract from the extraction of polyamide to an extractables content of not more than 85% by weight, adding fresh lactam down to a water content of from 0.5 to 13% by weight, and effecting at least one adiabatic expansion during the polymerization.
摘要翻译：本公开是通过将洗涤水提取物从聚酰胺的提取物浓缩至不超过85重量％的可提取物含量制备聚酰胺的方法，将新鲜内酰胺加入到0.5至13重量％的水含量中，以及在聚合过程中至少产生一个绝热膨胀。

4. 发明授权

US06194538B1 Process for producing polyamides from aminonitriles 有权
标题翻译：从氨腈制备聚酰胺的方法
公开(公告)号：US06194538B1
公开(公告)日：2001-02-27
申请号：US09242714
申请日：1999-02-22
申请人： Robert Weiss , Dieter Krauss , Dieter Keller , Gunter Pipper , Wolfgang Harder , Alfons Ludwig , Ralf Mohrschladt
发明人： Robert Weiss , Dieter Krauss , Dieter Keller , Gunter Pipper , Wolfgang Harder , Alfons Ludwig , Ralf Mohrschladt
IPC分类号： C08G6904
CPC分类号： C08G69/04 , C08G69/08 , C08G69/28 , C08G69/36
摘要： A process for preparing a polyamide by reacting at least one aminonitrile with water comprises: (1) reacting at least one aminonitrile with water at a temperature from 100 to 360° C. and a pressure from 0.1 to 35×106 Pa to obtain a reaction mixture, (2) further reacting the reaction mixture at a temperature from 150 to 400° C. and a pressure which is lower than the pressure in step 1, the temperature and the pressure being selected so as to obtain a first gas phase and a first liquid or a first solid phase or a mixture of first solid and first liquid phase, and the first gas phase is separated from the first liquid or the first solid phase or from the mixture of first liquid and first solid phase, and (3) admixing the first liquid or the first solid phase or the mixture of first liquid and first solid phase with a gaseous or liquid phase comprising water at a temperature from 150 to 360° C. and a pressure from 0.1 to 30×106 Pa to obtain a product mixture.
摘要翻译：通过使至少一种氨基腈与水反应制备聚酰胺的方法包括：（1）在100至360℃的温度和0.1至35×10 6 Pa的压力下使至少一种氨基腈与水反应，得到反应混合物，（2）在150-400℃的温度和低于步骤1中的压力的压力下使反应混合物进一步反应，选择温度和压力以获得第一气相和第一液体或第一固相或第一固相和第一液相的混合物，并且第一气相与第一液体或第一固相或第一液体和第一固相的混合物分离，以及（3）将第一液体或第一固相或第一液体和第一固相的混合物与气相或液相在150至360℃的温度和0.1至30×10 6 Pa的压力下包含水以获得产物混合物。

5. 发明授权

US06326457B1 Continuous polyamide extraction process 失效
标题翻译：连续聚酰胺萃取工艺
公开(公告)号：US06326457B1
公开(公告)日：2001-12-04
申请号：US09554214
申请日：2000-05-11
申请人： Jörg Erbes , Alfons Ludwig , Gunter Pipper
发明人： Jörg Erbes , Alfons Ludwig , Gunter Pipper
IPC分类号： C08G6908
CPC分类号： C08G69/46 , B01D11/0242 , C08G69/04 , C08G69/16
摘要： A process for continuous extraction of polyamide particles using a recirculating extractant in a vertical extraction column that is divided into two zones comprises treating the polyamide with an aqueous extractant comprising from 40 to 95% by weight of &egr;-caprolactam in a first zone at from 100 to 140° C., and then effecting an aftertreatment with water in a second zone. The caprolactam can then be extracted in a conventional manner. The process provides for economical production of polyamide having a low dimer content.
摘要翻译：使用分为两个区域的垂直萃取柱中的再循环萃取剂连续萃取聚酰胺颗粒的方法包括用含有40至95重量％ε-己内酰胺的含水萃取剂在第一区域中以100重量％至140℃，然后在第二区域用水进行后处理。然后可以以常规方式提取己内酰胺。该方法提供了经济地生产具有低二聚体含量的聚酰胺。

6. 发明授权

US06320021B1 Continuous polyamide extraction process 有权
标题翻译：连续聚酰胺萃取工艺
公开(公告)号：US06320021B1
公开(公告)日：2001-11-20
申请号：US09554217
申请日：2000-05-11
申请人： Peter Hildenbrand , Reinhard Lang , Alfons Ludwig , Gunter Pipper
发明人： Peter Hildenbrand , Reinhard Lang , Alfons Ludwig , Gunter Pipper
IPC分类号： C08G6916
CPC分类号： C08G69/16 , C08G69/46
摘要： A process for continuous extraction of polyamide particles in an essentially vertical extraction column using an aqueous extractant comprises using an extraction column that is divided into two zones and performing an extraction with a recirculating 15-40% strength by weight aqueous &egr;-caprolactam solution in the first zone and then with countercurrent water at a from 5 to 40° C. lower temperature in the second zone. The process provides for economical extraction of polyamides with a low level of monomers and oligomers.
摘要翻译：使用含水萃取剂在基本垂直的萃取塔中连续提取聚酰胺颗粒的方法包括使用分离成两个区域的提取塔，并用15-40重量％的重量百分比的ε-己内酰胺水溶液萃取然后在5至40℃的逆流水中，在第二区域中的较低温度。该方法提供了用低水平的单体和低聚物经济地提取聚酰胺。

7. 发明授权

US06548626B1 Method for preparing polyamides from lactams and polyamide extracts 失效
标题翻译：从内酰胺和聚酰胺提取物制备聚酰胺的方法
公开(公告)号：US06548626B1
公开(公告)日：2003-04-15
申请号：US09980522
申请日：2001-12-03
申请人： Ralf Mohrschladt , Volker Hildebrandt , Alfons Ludwig
发明人： Ralf Mohrschladt , Volker Hildebrandt , Alfons Ludwig
IPC分类号： C08G6902
CPC分类号： C08G69/16 , C08G69/04 , C08G69/18 , C08G69/20
摘要： A process for producing polyamides by reacting at least one lactam and optionally further polyamide-forming monomers with aqueous monomer and oligomer extracts obtained during the extraction with water of the polymer product obtained in the production of polyamides, the water content of the reaction mixture being in the range from 0.5 to 13% by weight comprises conducting the reaction in the presence of metal oxides, beta-zeolites, sheet-silicates or silica gels, which may be doped, as heterogeneous catalysts, the heterogeneous catalysts being used in the form which permits mechanical removal from the reaction mixture and are removed from the reaction mixture in the course of the polymerization or after it has ended.
摘要翻译：通过使至少一种内酰胺和任选的另外的聚酰胺形成单体与在提取期间获得的聚合物产物中获得的单体和低聚物提取物的水反应制备聚酰胺的方法，反应混合物的水含量在 0.5至13重量％的范围包括在金属氧化物，β-沸石，片状硅酸盐或二氧化硅凝胶的存在下进行反应，其可以掺杂作为多相催化剂，以允许的形式使用的多相催化剂在反应混合物中机械除去并在聚合过程中或在其结束后从反应混合物中除去。

8. 发明授权

US5886137A Preparation of salts of polyaspartic acid and their use in detergents and cleaners 失效
标题翻译：聚天冬氨酸盐的制备及其在洗涤剂和清洁剂中的应用
公开(公告)号：US5886137A
公开(公告)日：1999-03-23
申请号：US776524
申请日：1997-02-27
申请人： Matthias Kroner , Gunnar Schornick , Uwe Strotmann , Volker Schwendemann , Thomas Meyer , Alfons Ludwig
发明人： Matthias Kroner , Gunnar Schornick , Uwe Strotmann , Volker Schwendemann , Thomas Meyer , Alfons Ludwig
IPC分类号： C08G69/10 , C02F5/12 , C08G73/10 , C11D3/37 , C08G63/44 , C08G73/00
CPC分类号： C02F5/12 , C08G73/1092 , C11D3/3719
摘要： A process for preparing salts of polyaspartic acid by treating polycondensates in aqueous medium with bases, employing at least 0.7 equivalent of an alkali metal and/or alkaline earth metal base per mole of the aspartimide, aspartic acid and/or aspartamide units present in the polycondensates, and the bases being added within from 30 min to 20 hours to an aqueous suspension of polycondensates of aspartic acid which has been heated to 40.degree.-140.degree. C., and the reaction mixture being allowed to react further where appropriate, and the use of alkali metal and/or alkaline earth metal salts of polyaspartic acids obtainable by treating polycondensates of aspartic acid in aqueous medium with more than 1 equivalent of an alkali metal and/or alkaline earth metal base, with the molecular weight of the polycondensates being reduced, as additive to detergents and cleaners.
摘要翻译： PCT No.PCT / EP95 / 03224 Sec。 371日期1997年2月27日 102（e）日期1997年2月27日PCT提交1995年8月16日PCT公布。出版物WO96 / 06879 日期1996年3月7日一种通过在水性介质中用碱处理缩聚物来制备聚天冬氨酸盐的方法，每摩尔天冬氨酰亚胺，天冬氨酸和/或天冬氨酰胺使用至少0.7当量碱金属和/或碱土金属碱存在于缩聚物中的单元，并将碱在30分钟至20小时内加入已加热至40-140℃的天冬氨酸缩聚物的水性悬浮液，并使反应混合物进一步反应其中适当地使用聚天冬氨酸的碱金属和/或碱土金属盐，其可以通过在水性介质中用多于1当量的碱金属和/或碱土金属碱处理天冬氨酸的缩聚物而获得，分子量为减缩的缩聚物作为洗涤剂和清洁剂的添加剂。

9. 发明授权

US5830985A Preparation of polyaspartic acid 失效
标题翻译：聚天冬氨酸的制备
公开(公告)号：US5830985A
公开(公告)日：1998-11-03
申请号：US776706
申请日：1997-02-12
申请人： Matthias Kroner , Gunnar Schornick , Hans-Jacob Feindt , Thomas Meyer , Alfons Ludwig , Udo Metzmann
发明人： Matthias Kroner , Gunnar Schornick , Hans-Jacob Feindt , Thomas Meyer , Alfons Ludwig , Udo Metzmann
IPC分类号： C02F5/12 , C08G69/10 , C08G73/10 , C11D3/37
CPC分类号： C08G69/10 , C02F5/12 , C08G73/1092 , C11D3/3719
摘要： A process for preparing polyaspartic acid by polycondensation of fine-particle aspartic acid at temperatures above 150.degree. C. in the presence of acidic catalysts, wherein first contact between the acidic catalysts and the fine-particle aspartic acid takes place in the reaction zone where the polycondensation takes place.
摘要翻译： PCT No.PCT / EP95 / 03003 Sec。 371日期1997年2月12日 102（e）1997年2月12日PCT PCT 1995年7月28日PCT公布。公开号WO96 / 05241 日期：1996年2月22日在酸性催化剂存在下，在高于150℃的温度下，通过微细粒子天冬氨酸的缩聚制备聚天冬氨酸的方法，其中酸性催化剂和细粒天冬氨酸之间的第一次接触发生在发生缩聚的反应区。

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