公开(公告)号：US5478656A

公开(公告)日：1995-12-26

申请号：US408408

申请日：1995-03-22

申请人： Klaus Flory ,  Andreas Stange ,  Michael Kroener ,  Norbert Sendhoff

发明人： Klaus Flory ,  Andreas Stange ,  Michael Kroener ,  Norbert Sendhoff

IPC分类号： C08G12/12 ,  C08G12/46 ,  D21H17/49 ,  D21H17/50 ,  B32B27/42

CPC分类号： C08G12/46 ,  Y10T428/31949 ,  Y10T428/31964

摘要： Cationic urea/formaldehyde resins are obtainable by condensing urea and formaldehyde in a molar ratio of from 1:1.5 to 1:3 in the presence of polymers which contain not less than 1 mol % of polymerized vinylamine units and have Fikentscher K values of from 5 to 300, in an amount of from 5 to 50 g per mole of urea in the end product, where the mixture is first a) precondensed at a pH of from 8 to 14, then acidified and b) condensed at a pH of from 1 to 5 until gel formation begins, c) then from 0.3 to 1.5 moles of formaldehyde are added per mole of urea used, d) post-condensation is carried out and e) the resin solution is subsequently neutralized. The resins thus obtained are used in papermaking as assistants for increasing the dry and wet strength of paper and result in less dulling of the whiteness of the paper.

摘要翻译： 阳离子脲/甲醛树脂可以通过在含有不少于1摩尔％的聚合乙烯胺单元的聚合物存在下，以1:1.5至1:3的摩尔比冷凝脲和甲醛，并且具有5的Fikentscher K值 至300，其量为最终产物中每摩尔尿素5至50g，其中混合物首先a）在8至14的pH下预缩合，然后酸化并b）在pH为1时冷凝 至5，直到凝胶形成开始，c）然后每摩尔使用的尿素加入0.3至1.5摩尔的甲醛，d）进行后冷凝，e）随后中和树脂溶液。 由此获得的树脂用于造纸中作为助剂以增加纸张的干湿强度，并且导致纸的白度较少的钝化。

公开(公告)号：US5077427A

公开(公告)日：1991-12-31

申请号：US627021

申请日：1990-12-13

申请人： Rolf Fikentscher ,  Michael Kroener

发明人： Rolf Fikentscher ,  Michael Kroener

IPC分类号： B01J31/02 ,  B01J31/04 ,  C07B61/00 ,  C07C253/30 ,  C07C255/29

CPC分类号： C07C255/29

摘要： A process for preparing .alpha.-formylamino nitriles of the formula I ##STR1## where R.sup.1 and R.sup.2 are each hydrogen or unsubstituted or substituted, with substituents which are inert under the reaction conditions, aliphatic or heteroaliphatic radicals with 1 to 10, cycloaliphatic or heterocycloaliphatic radicals with 3 to 6, araliphatic radicals with 7 to 12, heteroaraliphatic radicals with 4 to 12, aromatic radicals with 6 to 10 or heteroaromatic radicals with 3 to 10 carbon atoms, by reacting cyanohydrins of the formula II ##STR2## with the formamide III ##STR3## in the presence of acids, entails adding at least one ammonium salt to the reaction mixture.

摘要翻译： 制备式I的α-甲酰氨基腈的方法，其中R 1和R 2各自为氢或未取代或取代的，具有在反应条件下为惰性的取代基，具有1至10个脂环族或杂环脂族基的脂族或杂脂族基团 具有3至6个具有7至12个芳基的基团，具有4至12个杂芳族脂族基团，具有6至10个芳族基团或具有3至10个碳原子的杂芳族基团的芳基，通过使式II II的氰醇与甲酰胺 在酸存在下III III需要向反应混合物中加入至少一种铵盐。

公开(公告)号：US4818341A

公开(公告)日：1989-04-04

申请号：US155503

申请日：1988-02-12

申请人： Hans-Juergen Degen ,  Sigberg Pfohl ,  Volkmar Weberndoerfer ,  Gerd Rehmer ,  Michael Kroener ,  Andreas Stange

发明人： Hans-Juergen Degen ,  Sigberg Pfohl ,  Volkmar Weberndoerfer ,  Gerd Rehmer ,  Michael Kroener ,  Andreas Stange

IPC分类号： D21H17/34 ,  D21H17/28 ,  D21H17/37 ,  D21H17/45 ,  D21H17/56 ,  D21H21/18 ,  D21D3/00

CPC分类号： D21H17/455 ,  D21H17/28 ,  D21H17/45 ,  D21H21/18

摘要： Paper and paperboard of high dry strength are produced by adding a dry strength enhancer to the paper stock and dewatering the paper stock with sheet formation by using as the dry strength enhancer a mixture of a cationic polymer which contains as characteristic monomers copolymerized units of(a) diallyldimethylammonium chloride,(b) N-vinylamine or(c) a substituted or unsubstituted N-vinylimidazoline and has a K value of not less than 30, and natural potato starch which is converted into a water-soluble form by heating in an aqueous medium at above the gelatinization temperature of natural potato starch in the absence of any oxidizing agents or alkali.

摘要翻译： 通过向纸料中加入干强度增强剂并通过使用作为干强度增强剂的阳离子聚合物的混合物作为特征性单体的共聚单元（a（a））来制备干燥强度高的纸和纸板， ）二烯丙基二甲基氯化铵，（b）N-乙烯基胺或（c）取代或未取代的N-乙烯基咪唑啉，K值不小于30，天然马铃薯淀粉通过在水溶液中加热而转化为水溶性形式 介质在天然马铃薯淀粉的凝胶化温度高于没有任何氧化剂或碱的情况下。

公开(公告)号：US20100058266A1

公开(公告)日：2010-03-04

申请号：US12201092

申请日：2008-08-29

申请人： Maarten Boersma ,  Michael Kroener ,  Petra Leber ,  Silvia M. Mueller ,  Jochen Preiss ,  Kerstin Schelm

发明人： Maarten Boersma ,  Michael Kroener ,  Petra Leber ,  Silvia M. Mueller ,  Jochen Preiss ,  Kerstin Schelm

IPC分类号： G06F17/50

CPC分类号： G06F17/5072

摘要： A 3-stack floorplan for a floating point unit includes: an aligner located in the center of the floating point unit; a frontend located directly above the aligner; a multiplier located directly below the frontend and next to the aligner; an adder located directly next to the multiplier and directly below the aligner; a normalizer located directly above the adder; and a rounder located directly above the normalizer.

摘要翻译： 用于浮点单元的三层平面布置图包括：位于浮点单元中心的对准器; 位于对准器正上方的前端; 位于前端正对着对准器旁边的乘数; 位于乘法器旁边并直接位于校准器下方的加法器; 位于加法器正上方的归一化器; 以及位于归一化器正上方的四舍五入。

公开(公告)号：US5630907A

公开(公告)日：1997-05-20

申请号：US651655

申请日：1996-05-21

申请人： Claudia Nilz ,  Walter Denzinger ,  Heinrich Hartmann ,  Michael Kroener ,  Friedrich Linhart ,  Rudolf Schuhmacher ,  Dietmar Moench ,  Andreas Stange

发明人： Claudia Nilz ,  Walter Denzinger ,  Heinrich Hartmann ,  Michael Kroener ,  Friedrich Linhart ,  Rudolf Schuhmacher ,  Dietmar Moench ,  Andreas Stange

IPC分类号： C08F8/12 ,  D21H21/10

CPC分类号： C08F8/12 ,  C08J5/18 ,  C08F2810/50

摘要： Copolymers which are obtained by copolymerization ofa) from 5 to 99 mol % of N-vinylcarboxamides,b) from 95 to 1 mol % of monoethylenically unsaturated carboxylic acids and/or the alkali metal, alkaline earth metal, ammonium or amine salts thereof, and if required,c) up to 30 mol % of other monoethylenically unsaturated compounds, and if required,d) up to 2 mol % of crosslinking agents,and subsequent partial or complete elimination of the acyl groups from the N-vinylcarboxamides polymerized in the copolymer, with formation of amino or ammonium groups, are used as additives to paper stock for increasing the drainage rate and the retention in papermaking, and the dry and wet strength of the paper.

摘要翻译： 通过a）5〜99摩尔％的N-乙烯基酰胺共聚得到的共聚物，b）95〜1摩尔％的单烯属不饱和羧酸和/或其碱金属，碱土金属，铵或胺盐， 并且如果需要，c）至多30mol％的其它单烯键式不饱和化合物，如果需要，d）最多达2mol％的交联剂，随后部分或完全消除由乙烯基酰胺聚合的N-乙烯基酰胺 共聚物，形成氨基或铵基，被用作纸浆的添加剂，以增加造纸中的排水速率和保留性，以及纸的干和湿强度。

公开(公告)号：US5599898A

公开(公告)日：1997-02-04

申请号：US325187

申请日：1995-04-25

申请人： Heinrich Hartmann ,  Walter Denzinger ,  Michael Kroener ,  Claudia Nilz

发明人： Heinrich Hartmann ,  Walter Denzinger ,  Michael Kroener ,  Claudia Nilz

IPC分类号： C08F8/00 ,  B01D15/04 ,  B01J20/26 ,  B01J39/20 ,  C08F226/02 ,  C08G69/08 ,  C08G73/10

CPC分类号： B01J39/20 ,  B01J20/26 ,  C08F226/02

摘要： Abstract of the Disclosure: Insoluble, only slightly swellable polymers containing amino groups, which can be obtained from popcorn polymers containing units of the structure ##STR1## where R and R.sup.1 are H or C.sub.1 -C.sub.4 -alkyl, by eliminating the group R--CO-- from at least 2% of the incorporated units of the structure I, with the formation of units of the structure II ##STR2## a process for the preparation of the amino-containing popcorn polymers by polymerizing N-vinylcarboxamides and, if desired, other monoethylenically unsaturated monomers copolymerizable therewith with from 0.1 to 10% by weight, based on the monomers used in the polymerization, of a compound containing at least two ethylenically unsaturated non-conjugated double bonds as crosslinking agent, with exclusion of oxygen and polymerization initiators, to form popcorn polymers, and elimination of formyl groups from at least 2% of the copolymerized N-vinylcarboxamides, and the use of the resulting insoluble, only slightly swellable polymers containing amino groups as ion exchangers or adsorber resins for metal ions are described.

摘要翻译： PCT No.PCT / EP93 / 03019 371日期1995年04月25日 102（e）日期1995年4月25日PCT提交1993年10月29日PCT公布。 公开号WO94 / 11408 日期：1994年5月26日摘要：不溶性的仅含有氨基的轻微溶胀性聚合物，其可以从含有其中R和R 1为H或C 1 -C 4 - 烷基的结构单元（I）的爆米花聚合物获得， 通过从结构I的引入单元的至少2％中除去基团R-CO-，形成结构II（II）的单元，制备含氨基的爆米花聚合物的方法通过 聚合N-乙烯基甲酰胺和（如果需要）可与其共聚的其它单烯属不饱和单体，基于聚合中使用的单体为0.1〜10重量％，含有至少两个烯属不饱和非共轭双键的化合物作为交联剂 排除氧气和聚合引发剂，形成爆米花聚合物，并从至少2％的共聚N-乙烯基甲酰胺中除去甲酰基，并使用所得的不溶性 描述了仅含有氨基作为离子交换剂的微溶胀性聚合物或用于金属离子的吸附树脂。

公开(公告)号：US5359082A

公开(公告)日：1994-10-25

申请号：US36032

申请日：1993-03-23

申请人： Ulrich Koehler ,  Thomas-Michael Kahl ,  Horst Neuhauser ,  Hardo Siegel ,  Michael Kroener

发明人： Ulrich Koehler ,  Thomas-Michael Kahl ,  Horst Neuhauser ,  Hardo Siegel ,  Michael Kroener

IPC分类号： C07D233/54 ,  C07D233/58 ,  C07D521/00 ,  C07D233/56

CPC分类号： C07D233/54 ,  C07D231/12 ,  C07D233/56 ,  C07D249/08 ,  C07D521/00

摘要： A process for the preparation of 4-substituted imidazoles of the general formula ##STR1## in which R denotes C.sub.1 -C.sub.20 alkyl, C.sub.3 -C.sub.20 cycloalkyl, aryl, and C.sub.7 -C.sub.20 aralkyl,whereina) N-formyl-.alpha.-aminonitriles of the general formula I ##STR2## in which R has the meanings stated above and A stands for carbonyl, are reacted, at a temperature ranging from 20.degree. to 200.degree. C. and a pressure ranging from 20 to 500 bar, with hydrogen in the presence of hydrogenation catalysts andb) the resulting N-formyl-1,2-diamines of the general formula ##STR3## in which R and A have the meanings stated above and n stands for 0 or 1, are reacted over a cyclization/dehydrogenation catalyst at a temperature ranging from 200.degree. to 600.degree. C. and a pressure ranging from 0.001 to 5 bar.

摘要翻译： 制备通式为（I）的4-取代咪唑的方法，其中R表示C 1 -C 20烷基，C 3 -C 20环烷基，芳基和C 7 -C 20芳烷基，其中a）N-甲酰基-α 其中R具有上述含义并且A代表羰基的通式I （II）的氨基腈在20℃至200℃的温度和20至500℃的压力下反应 在氢化催化剂的存在下用氢气b）所得的通式（III）的N-甲酰基-1,2-二胺其中R和A具有上述含义，n代表0或 1在环化/脱氢催化剂上在200至600℃的温度和0.001至5巴的压力下反应。

公开(公告)号：US5326909A

公开(公告)日：1994-07-05

申请号：US65492

申请日：1993-05-24

申请人： Michael Kroener ,  Jacques Dupuis

发明人： Michael Kroener ,  Jacques Dupuis

IPC分类号： C07C231/22 ,  C07C233/03 ,  C08F2/40 ,  C08F226/02 ,  C09K15/16 ,  C07C233/09

CPC分类号： C09K15/16 ,  C07C231/22 ,  C08F226/02

摘要： A method of stabilizing N-vinylformamide, which may contain customary polymerization inhibitors, against polymerization during storage or transport, comprises adding to the N-vinylformamide monomers of the general formula ##STR1## where R+H, CH.sub.3 ##STR2## R.sup.2 +C.sub.1 -C.sub.4 -alkyl, as stabilizer in amounts of from 1 to 99 .degree.6 by weight, based on the mixture.

摘要翻译： 在储存或运输过程中稳定可能含有常规聚合抑制剂的聚合的N-乙烯基甲酰胺的方法包括向通式（III）的N-乙烯基甲酰胺单体中加入其中R + H，CH 3 基于混合物，图像> R2 + C1-C4-烷基作为稳定剂，其量为1至99重量％。

公开(公告)号：US4940514A

公开(公告)日：1990-07-10

申请号：US223334

申请日：1988-07-25

申请人： Andreas Stange ,  Hans-Juergen Degen ,  Werner Auhorn ,  Volkmar Weberndoerfer ,  Michael Kroener ,  Heinrich Hartmann

发明人： Andreas Stange ,  Hans-Juergen Degen ,  Werner Auhorn ,  Volkmar Weberndoerfer ,  Michael Kroener ,  Heinrich Hartmann

IPC分类号： D21H17/34 ,  D21H17/28 ,  D21H17/45 ,  D21H21/18

CPC分类号： D21H17/28 ,  D21H17/455 ,  D21H21/18

摘要： Paper, board, and cardboard having high dry strength are made by adding to the paper stock a dry strength agent which is obtainable by mixing enzymatically digested starch having a viscosity of from 20 to 2,000 mPa.s (measured in 7.5% strength aqueous solution at 45.degree. C.) and a cationic polymer which contains, as typical copolymerized monomers,(a) diallyldimethylammonium chloride,(b) N-vinylamine or(c) an unsubstituted or substituted N-vinylimidazoline, the K value of the cationic polymer in each case being not less than 30, and draining the paper stock with sheet formation.

摘要翻译： 具有高干燥强度的纸，纸板和纸板通过向纸料中加入干强度剂来制备，该干燥强度剂可通过将粘度为20至2,000mPa.s的酶促消化淀粉（在7.5％强度水溶液中测量 45℃）和含有（a）二烯丙基二甲基氯化铵，（b）N-乙烯胺或（c）未取代或取代的N-乙烯基咪唑啉的典型共聚单体的阳离子聚合物，每个阳离子聚合物的K值 情况不小于30，并排纸成纸。

公开(公告)号：US4711930A

公开(公告)日：1987-12-08

申请号：US875572

申请日：1986-06-18

申请人： Wolfgang Hoelderich ,  Werner Biffar ,  Matthias Irgang ,  Wolf D. Mross ,  Michael Kroener ,  Eberhard Ambach

发明人： Wolfgang Hoelderich ,  Werner Biffar ,  Matthias Irgang ,  Wolf D. Mross ,  Michael Kroener ,  Eberhard Ambach

IPC分类号： B01J23/85 ,  B01J23/88 ,  B01J27/188 ,  B01J27/198 ,  B01J27/199 ,  B01J35/04 ,  C01B3/16 ,  C07B61/00 ,  C07C1/00 ,  C07C5/333 ,  C07C15/46 ,  C07C67/00 ,  C07C231/00 ,  C07C231/12 ,  C07C233/03 ,  B01J23/84 ,  B01J27/18

CPC分类号： B01J23/8872 ,  B01J23/85 ,  B01J23/8877 ,  B01J27/188 ,  C01B3/16 ,  C07C5/3332 ,  Y02P20/52 ,  Y10T428/24149

摘要： A honeycomb catalyst consisting of from 30 to 95% by weight, calculated as Fe.sub.2 O.sub.3, of an iron compound and from 0.1 to 60% by weight, calculated as Al.sub.2 O.sub.3, CeO.sub.2 or Cr.sub.2 O.sub.3, of an aluminum, cerium and/or chromium compound and/or from 1 to 50% by weight of an alkali metal compound, in particular potassium, calculated as K.sub.2 O, and/or from 0.2 to 20% by weight, calculated as MeO.sub.3, of an element of sub-group 6, preferably MoO.sub.3 and WO.sub.3, and/or from 0.1 to 20% by weight, calculated as V.sub.2 O.sub.5, of a compound of vanadium and/or from 0.1 to 20% by weight, calculated as P.sub.2 O.sub.5, of a compound of phosphorus, a process for the preparation of the honeycomb catalyst, and the use of the catalyst for organic reactions.

摘要翻译： 一种蜂窝状催化剂，其以Al 2 O 3，CeO 2或Cr 2 O 3计算的铝，铈和/或铬化合物和/或铬化合物计为30至95重量％，以Fe 2 O 3计，铁化合物和0.1至60重量％ 或1至50重量％的碱金属化合物，特别是钾（以K 2 O计）和/或0.2至20重量％（以MeO 3计），为第6族元素，优选MoO 3和WO 3 ，和/或0.1至20重量％，以V 2 O 5计，钒化合物和/或按重量计0.1至20重量％的磷化合物，磷化合物的制备方法 催化剂和催化剂用于有机反应。