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1. 发明授权

US6075089A Process for producing dispersions of water-soluble vinyl polymers and stabilizer for carrying out the process 失效
标题翻译：用于生产水溶性乙烯基聚合物和稳定剂分散体的方法，用于进行该方法
公开(公告)号：US6075089A
公开(公告)日：2000-06-13
申请号：US125181
申请日：1998-10-05
申请人： Werner Jaeger , Arvid Zimmermann , Mathias Hahn , Volker Hildebrandt , Karl Heinz Reichert
发明人： Werner Jaeger , Arvid Zimmermann , Mathias Hahn , Volker Hildebrandt , Karl Heinz Reichert
IPC分类号： B01F17/34 , C08F2/10 , C08F2/24 , C08F283/06 , C08K5/06 , C08F2/16 , C08L39/00
CPC分类号： C08F283/06 , C08F2/10
摘要： The present invention concerns a process for producing dispersions of watsoluble vinyl polymers and a stabilizer for carrying out this process. Such water-soluble, particularly cationic vinyl polymers, are employed on a large scale as process expediters for carrying out, for instance, separating processes in water treatment or waste-water purification, respectively, in the paper, coal and ore industries, in oil production or also in the food stuff industry, among others, for floculation, coagulation, retention or dewatering. According to the present invention, water-soluble vinyl polymers are homo- or copolymerized in the presence of a dispersion stabilizer of the invention. The stabilizer consists of a graft copolymer whose backbone is formed by polyethylene oxide and its grafted branches of cationic vinyl monomers. Among others, cationic, hydrophobically modified vinyl monomers can be advantageously employed. Copolymerizations can be carried out between cationic or non-ionic hydrophobically modified vinyl polymers and cationic or non-ionic, non-hydrophobically modified vinyl polymers.
摘要翻译： PCT No.PCT / DE97 / 00288 Sec。 371日期：1998年10月5日 102（e）日期1998年10月5日PCT提交1997年2月10日PCT公布。公开号WO97 / 30094 日期：1997年8月21日本发明涉及一种水溶性乙烯基聚合物的分散体的制造方法及其制造方法。大量使用这种水溶性，特别是阳离子乙烯基聚合物作为工艺加速器，用于在纸，煤和矿石工业，油中分别进行水处理或废水净化中的分离过程生产或在食品行业，其中包括絮凝，凝结，保留或脱水。根据本发明，水溶性乙烯基聚合物在本发明的分散稳定剂的存在下是均聚的或共聚合的。稳定剂由接枝共聚物组成，其主链由聚环氧乙烷及其接枝的阳离子乙烯基单体分支形成。其中，可以有利地使用阳离子，疏水改性的乙烯基单体。可以在阳离子或非离子疏水改性的乙烯基聚合物和阳离子或非离子，非疏水改性的乙烯基聚合物之间进行共聚。

2. 发明授权

US06531570B1 Accelerator for the production of polyamides from aminonitriles 失效
标题翻译：用于从氨腈生产聚酰胺的加速剂
公开(公告)号：US06531570B1
公开(公告)日：2003-03-11
申请号：US09806147
申请日：2001-03-28
申请人： Ralf Mohrschladt , Volker Hildebrandt
发明人： Ralf Mohrschladt , Volker Hildebrandt
IPC分类号： C08G6904
CPC分类号： C08G69/20 , C08G69/04 , C08G69/16
摘要： Disclosed are the use of lactams, aminocarboxylic acids or mixtures thereof as acceleratant or cocatalyst in the production of polyamides from aminonitriles and water, and a suitable process therefor.
摘要翻译：公开了在由氨基腈和水制备聚酰胺中使用内酰胺，氨基羧酸或其混合物作为加速剂或助催化剂及其合适的方法。

3. 发明授权

US06316588B1 Continuous preparation of polyamides from aminonitriles 有权
标题翻译：从氨基腈连续制备聚酰胺
公开(公告)号：US06316588B1
公开(公告)日：2001-11-13
申请号：US09600957
申请日：2000-07-25
申请人： Ralf Mohrschladt , Volker Hildebrandt , Eberhard Fuchs
发明人： Ralf Mohrschladt , Volker Hildebrandt , Eberhard Fuchs
IPC分类号： C08G6900
CPC分类号： C08G69/00 , C08G69/04 , C08G69/08 , C08G69/16 , C08G69/28 , C08K3/011
摘要： A continuous 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 90 to 400° C. and a pressure from 0.1 to 35×106 Pa in a flow tube containing a Brönsted acid catalyst selected from a beta-zeolite catalyst, a sheet-silicate catalyst or a titanium dioxide catalyst comprising from 70 to 100% by weight of anatase and from 0 to 30% by weight of rutile and in which up to 40% by weight of the titanium dioxide may be replaced by tungsten oxide 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, in the presence of a Brönsted acid catalyst as in (1), the temperature and 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 370° 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连续方法包括：（1）在90-400℃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，选自β-沸石催化剂，片状硅酸盐催化剂或二氧化钛催化剂的布朗斯台德酸催化剂，其包含70至100重量％的锐钛矿和0至30重量％的金红石，其中至多40重量％二氧化钛的重量可以被氧化钨代替以获得反应混合物，（2）使反应混合物在150-400℃的温度和低于步骤1的压力的压力下反应，在存在如（1）中所述的布朗斯台德酸催化剂，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体和第一液相的混合物，并且第一气体相与杉木分离第一液体或第一固相或第一液体和第一固相的混合物，和（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包含水的气相或液相混合温度为150〜370℃，压力为0.1〜30×10 6 Pa，得到产物混合物。

4. 发明授权

US06353085B1 Method for producing polyamides 失效
标题翻译：生产聚酰胺的方法
公开(公告)号：US06353085B1
公开(公告)日：2002-03-05
申请号：US09622321
申请日：2000-08-16
申请人： Ralf Mohrschladt , Volker Hildebrandt , Gunter Pipper , Eberhard Fuchs
发明人： Ralf Mohrschladt , Volker Hildebrandt , Gunter Pipper , Eberhard Fuchs
IPC分类号： C08G6914
CPC分类号： C08G69/20 , C08G69/18
摘要： In a process for producing polyamides by polymerization of lactams in the presence of metal oxides as heterogeneous catalysts, the metal oxides are used in a form which permits mechanical removal from the reaction mixture and are removed from the reaction mixture in the course of or on completion of the polymerization.
摘要翻译：在作为非均相催化剂的金属氧化物存在下通过内酰胺聚合制备聚酰胺的方法中，金属氧化物以允许从反应混合物中机械除去并在完成过程中从反应混合物中除去的形式使用金属氧化物的聚合。

5. 发明授权

US06525167B1 Method for producing polyamide 6 of a low extract content, high viscosity stability and low remonomerization rate 失效
标题翻译：低提取物含量的聚酰胺6的制备方法，高粘度稳定性和低再聚合速率
公开(公告)号：US06525167B1
公开(公告)日：2003-02-25
申请号：US09913122
申请日：2001-08-09
申请人： Ralf Mohrschladt , Volker Hildebrandt , Motonori Yamamoto
发明人： Ralf Mohrschladt , Volker Hildebrandt , Motonori Yamamoto
IPC分类号： C08G6904
CPC分类号： C08G69/04 , C08G69/16
摘要： The continuous process for producing polyamides by reacting at least one aminonitrile with water comprises the following steps: (10) reacting at least one aminonitrile with water at a temperature of from 200 to 290° C. at a pressure of from 40 to 70 bar in a flow tube containing a Brönsted acid catalyst selected from a beta-zeolite, sheet-silicate or metal oxide catalyst in the form of a fixed bed, (11) diabatically or adiabatically expanding the reaction mixture from step (1) into a first separation zone to a pressure of from 20 to 40 bar, the pressure being at least 10 bar lower than the pressure in step (1), and to a temperature within the range from 220 to 290° C. by flash evaporation and removal of ammonia, water and any aminonitrile monomer and oligomer, (12) further reacting the reaction mixture from step (2) in the presence of water at a temperature of from 200 to 290° C. and a pressure of from 25 to 55 bar and in the presence or absence of a Brönsted acid catalyst selected from a beta-zeolite, sheet-silicate or metal oxide catalyst in the form of a fixed bed, (13) diabatically or adiabatically expanding the reaction mixture from step (3) into a second separation zone to a pressure of from 0.01 to 20 bar, the pressure being at least 20 bar lower than the pressure in step (3), and to a temperature within the range from 220 to 290° C. by flash evaporation and removal of ammonia, water and any aminonitrile monomer and oligomer.
摘要翻译：通过使至少一种氨基腈与水反应生产聚酰胺的连续方法包括以下步骤：（10）在200至290℃的温度下，在40至70巴的压力下使至少一种氨基腈与水反应，含有布朗斯台德酸催化剂的流动管，其选自固体床形式的β-沸石，硅酸盐或金属氧化物催化剂，（11）将反应混合物从步骤（1）进行绝热或绝热膨胀到第一分离区压力为20至40巴，压力比步骤（1）中的压力低至少10巴，并且通过闪蒸和除去氨，水的温度在220至290℃的范围内和任何氨基腈单体和低聚物，（12）在水存在下，在200-290℃的温度和25至55巴的压力下，使步骤（2）的反应混合物进一步反应，并在没有布朗斯台德酸催化剂选择f 以固定床形式的β-沸石，片状硅酸盐或金属氧化物催化剂（13）将步骤（3）的反应混合物从第二分离区中分离或绝热膨胀至压力为0.01至20巴，压力比步骤（3）中的压力低至少20巴，并通过闪蒸和氨，水和任何氨基腈单体和低聚物的除去而达到220-290℃的温度。

6. 发明授权

US06358373B1 Production of polyamides by reactive distillation 有权
标题翻译：通过反应蒸馏生产聚酰胺
公开(公告)号：US06358373B1
公开(公告)日：2002-03-19
申请号：US09622799
申请日：2000-08-23
申请人： Martin Leemann , Volker Hildebrandt , Heino Thiele , Stefan Espig
发明人： Martin Leemann , Volker Hildebrandt , Heino Thiele , Stefan Espig
IPC分类号： B01D338
CPC分类号： B01D3/141 , C08G69/00 , C08G69/04 , Y02P20/127 , Y10S203/06
摘要： The preparation of polyamides, their oligomers or mixtures thereof, where appropriate with other reaction products, takes place by reacting amino nitrites (A) and, where appropriate, other polyamide-forming monomers and/or oligomers with water (D) in a reactive distillation, wherein the reaction product (P) is discharged from the bottom of the reactive distillation apparatus, and ammonia (N) which is produced and, where appropriate, other low molecular weight compounds which are produced, and water, are taken off overhead.
摘要翻译：通过在反应蒸馏中使氨基亚硝酸盐（A）和适当的情况下将其它形成聚酰胺的单体和/或低聚物与水（D）反应来进行聚酰胺，其低聚物或其混合物的制备，其中适宜与其它反应产物反应其中反应产物（P）从反应蒸馏装置的底部排出，并且生成的氨（N）和适当的其它生产的低分子量化合物和水从塔顶除去。

7. 发明授权

US06326460B1 Method for extracting polyamide particles 失效
标题翻译：提取聚酰胺颗粒的方法
公开(公告)号：US06326460B1
公开(公告)日：2001-12-04
申请号：US09622307
申请日：2000-08-16
申请人： Ralf Mohrschladt , Volker Hildebrandt , Volker Warzelhan
发明人： Ralf Mohrschladt , Volker Hildebrandt , Volker Warzelhan
IPC分类号： C08G6946
CPC分类号： C08G69/46 , C08G69/04 , C08G69/28
摘要： Polyamide particles, or polymer particles comprising polyamides, are extracted with aqueous solutions of aminonitiles and optionally further polyamide-forming monomers, polyamide-forming oligomers or mixtures thereof.
摘要翻译：包含聚酰胺的聚酰胺颗粒或聚合物颗粒用氨基腈水溶液和任选的其它聚酰胺形成单体，聚酰胺形成的低聚物或其混合物的水溶液萃取。

8. 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。

9. 发明授权

US06482917B1 Method for producing powder-shaped cross-linked polymerizates 失效
标题翻译：粉末状交联聚合物的制造方法
公开(公告)号：US06482917B1
公开(公告)日：2002-11-19
申请号：US09720916
申请日：2001-01-02
申请人： Volker Hildebrandt , Reinhold Dieing , Katrin Zeitz
发明人： Volker Hildebrandt , Reinhold Dieing , Katrin Zeitz
IPC分类号： C08G6914
CPC分类号： C08F226/10 , A61K8/817 , A61K8/8182 , A61K9/2027 , A61K2800/5426 , A61Q5/00 , A61Q19/00 , C08F2/06 , Y02P20/544
摘要： A process for the preparation of pulverulent, cationic, crosslinked polymers based on monoethylenically unsaturated monomers containing a quaternized or quaternizable nitrogen atom comprises carrying out the polymerization in supercritical carbon dioxide as inert diluent with mixing at from 31° C. to 150° C. and above 73 bar.
摘要翻译：用于制备基于含有季铵化或季铵化氮原子的单烯属不饱和单体的粉状，阳离子交联聚合物的方法包括在31℃至150℃下混合，以超临界二氧化碳为惰性稀释剂进行聚合，高于73巴。

10. 发明授权

US06288207B1 Continuous method for producing polyamides from aminonitriles 失效
标题翻译：从氨腈生产聚酰胺的连续方法
公开(公告)号：US06288207B1
公开(公告)日：2001-09-11
申请号：US09600958
申请日：2000-07-25
申请人： Ralf Mohrschladt , Dieter Krauss , Volker Hildebrandt
发明人： Ralf Mohrschladt , Dieter Krauss , Volker Hildebrandt
IPC分类号： C08G6904
CPC分类号： C08G69/04 , C08G69/08 , C08G69/16
摘要： The continuous process for producing a polyamide by reacting at least one aminonitrile with water comprises the following steps: (1) reacting at least one aminonitrile with water at a temperature from 90 to 400° C. and a pressure from 0.1 to 15×106 Pa in a flow tube containing packing elements of a Brönsted acid catalyst selected from beta-zeolite, sheet-silicate or titanium dioxide packing elements and metallic packing elements to obtain a reaction mixture, (2) further reacting the reaction mixture at from 150 to 400° C. and a pressure which is lower than the pressure in step 1, the temperature and 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 first solid phase or 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 370° 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生产聚酰胺的连续方法包括以下步骤：（1）在90至400℃的温度和0.1至15×10 6 Pa的压力下使至少一种氨基腈与水反应，含有选自β-沸石，片状硅酸盐或二氧化钛填料的布朗斯台德酸催化剂的填充元件和金属填充元素的流动管，以获得反应混合物，（2）使反应混合物在150-400℃下进一步反应和低于步骤1中的压力的压力，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体和第一液相的混合物，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，和（3）混合第一液体或第一固相或第一液体和第一固体p的混合物在含有水的温度为150〜370℃，压力为0.1〜30×10 6 Pa的气相或液相中搅拌，得到产物混合物。

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