-
公开(公告)号：US20050027145A1
公开(公告)日：2005-02-03
申请号：US10924119
申请日：2004-08-23
申请人： Jorg Hofmann , Stephan Ehlers , Bernd Klinksiek , Thorsten Fechtel , Matthias Ruhland , Jurgen Scholz , Franz Fohles , Ulrich Esser
发明人： Jorg Hofmann , Stephan Ehlers , Bernd Klinksiek , Thorsten Fechtel , Matthias Ruhland , Jurgen Scholz , Franz Fohles , Ulrich Esser
CPC分类号： C08G65/2663 , B01J27/26
摘要： The invention provides an improved process for the preparation of double metal cyanide (DMC) catalysts for the preparation of polyether polyols by polyaddition of alkylene oxides on to starter compounds containing active hydrogen atoms, in which aqueous solutions of a metal salt and a metal cyanide salt are first reacted in the presence of an organic complexing ligand and optionally one or more further complex-forming components to form a DMC catalyst dispersion, this dispersion is then filtered, the filter cake is subsequently washed with one or more aqueous or non-aqueous solutions of the organic complexing ligand and optionally one or more further complex-forming components by a filter cake washing and the washed filter cake is finally dried, after an optional pressing out or mechanical removal of moisture.
摘要翻译： 本发明提供了一种改进的制备双金属氰化物（DMC）催化剂的方法，用于通过将环氧烷烃加成到含有活性氢原子的起始化合物上制备聚醚多元醇，其中金属盐和金属氰化物盐的水溶液 首先在有机络合配体和任选的一种或多种其它形成复合物的组分的存在下反应以形成DMC催化剂分散体，然后过滤该分散体，随后用一种或多种水或非水溶液洗涤滤饼 的有机络合配体和任选的一种或多种通过滤饼洗涤的复合物形成组分，并且在任选的压出或机械除去水分后，最后干燥洗涤过的滤饼。
-
2.发明授权Zinc/metal hexacyanocobaltate complex compounds, a process for their preparation, and their use in a process for the production of polyether polyols 失效锌/金属六氰合钴酸盐络合物，其制备方法及其在制备聚醚多元醇的方法中的用途
公开(公告)号：US5998327A
公开(公告)日：1999-12-07
申请号：US114359
申请日：1998-07-13
申请人： Jorg Hofmann , Pramod Gupta , Harald Pielartzik , Pieter Ooms , Walter Schafer
发明人： Jorg Hofmann , Pramod Gupta , Harald Pielartzik , Pieter Ooms , Walter Schafer
IPC分类号： B01J31/22 , B01J27/16 , B01J27/26 , B01J37/04 , C07C41/02 , C07F19/00 , C08G65/10 , C08G65/26 , C08G65/28
CPC分类号： B01J27/26 , C08G65/2663
摘要： The invention relates to novel zinc/metal hexacyanocobaltate complex compounds corresponding to the formula:Zn.sub.3-v M.sub.v [Co(CN).sub.6 ].sub.2.w(H.sub.2 O).x(L).y[Zn(X).sub.n ].z[M(Y).sub.m)].These complex compounds are suitable catalysts. This invention also relates to a process for the production of the compounds, and to the use of the compounds in a process for the production of polyether polyols.These novel zinc/metal hexacyanocobaltate complex compounds when used as catalysts in a process for the production of polyether polyols substantially reduce the induction period of the polyaddition reaction of alkylene oxides to starter compounds containing hydrogen atoms. Furthermore, the resultant polyether polyols have a significantly narrower molecular weight distribution.
摘要翻译： 本发明涉及对应于式Zn3-vMv [Co（CN）6] 2.w（H2O）.x（L）.y [Zn（X）n] .z [M]的新型锌/金属六氰合钴酸盐络合物 （Y）m）]。 这些络合物是合适的催化剂。 本发明还涉及一种生产该化合物的方法，以及该化合物在制备聚醚多元醇的方法中的用途。 当在制备聚醚多元醇的方法中用作催化剂时，这些新型的锌/金属六氰合钴酸盐络合物基本上降低了环氧烷烃与起始化合物含氢原子的加成反应的诱导期。 此外，所得聚醚多元醇具有明显较窄的分子量分布。
-
公开(公告)号：US5938945A
公开(公告)日：1999-08-17
申请号：US675480
申请日：1996-07-03
申请人： Jorg Hofmann , Roland Kurz , Klaus Schmitt
发明人： Jorg Hofmann , Roland Kurz , Klaus Schmitt
IPC分类号： B23K9/20
CPC分类号： B23K9/205
摘要： The invention relates to a method of welding weld studs to a workpiece, in particular of aluminum in each case, by the stroke ignition method, in which the stroke height(s) of the weld stud (1) is altered as a function of the measured arc voltage and optionally of the arc firing time. In particular, the stroke height(s) of the stud (1) can be increased during the occurrence of short circuits, i.e. during a sudden drop in the arc voltage, preferably in predetermined steps. The weld stud is immersed into a pool of melt after a predetermined period of time of between 5 and 10 ms after the welding current has been switched off. The polarity of the stud or of the workpiece is changed at least once during the welding process. The welding current is interrupted for a predetermined period of time for this purpose. The method leads to an improved, readily reproducible quality of weld.
摘要翻译： 本发明涉及一种通过冲程点火方法将焊接焊头焊接到工件，特别是铝的工件的方法，其中焊接螺柱（1）的冲程高度被改变为 测量电弧电压和任选的电弧点火时间。 特别地，螺柱（1）的行程高度可以在短路发生期间，即在电弧电压突然下降期间，优选以预定步骤增加。 在焊接电流关闭后，在5到10 ms的预定时间段之后，将焊接螺柱浸入熔池中。 螺栓或工件的极性在焊接过程中至少改变一次。 为此，焊接电流中断预定的时间。 该方法导致焊接质量的改善，易于重现。
-
公开(公告)号：US20070276099A1
公开(公告)日：2007-11-29
申请号：US11804546
申请日：2007-05-18
申请人： Klaus Lorenz , Jorg Hofmann
发明人： Klaus Lorenz , Jorg Hofmann
CPC分类号： B01J27/26 , C08G18/36 , C08G18/4866 , C08G65/2663 , C08G2190/00 , Y10S521/914
摘要： The present invention provides a process for conditioning double metal cyaide (DMC) catalysts, which are employed in the preparation of polyether polyols based on starter compounds having active hydrogen atoms, the preparation of polyether polyols using the conditioned catalysts and the use of the polyether polyols prepared in this way for the preparation of polyurethane materials.
摘要翻译： 本发明提供了一种用于调节双金属氰化物（DMC）催化剂的方法，其用于制备基于具有活性氢原子的起始化合物的聚醚多元醇，使用经调节的催化剂制备聚醚多元醇以及使用聚醚多元醇 以这种方式制备用于制备聚氨酯材料。
-
公开(公告)号：US20060211830A1
公开(公告)日：2006-09-21
申请号：US11375939
申请日：2006-03-15
申请人： Klaus Lorenz , Jorg Hofmann , Hartmut Nefzger
发明人： Klaus Lorenz , Jorg Hofmann , Hartmut Nefzger
CPC分类号： C08G18/4887 , C08G65/2615 , C08G65/3311
摘要： The invention is directed to novel poly(ether-ester)polyols, processes for their production from monocarboxylic or polycarboxylic acid esters with one or more bound polyether chain(s). This invention also relates to the production of polyurethane materials in which the isocyanate-reactive component comprises these poly(ether-ester)polyols.
摘要翻译： 本发明涉及新的聚（醚 - 酯）多元醇，其由具有一个或多个结合的聚醚链的单羧酸酯或多元羧酸酯生产的方法。 本发明还涉及其中异氰酸酯反应性组分包含这些聚（醚 - 酯）多元醇的聚氨酯材料的生产。
-
公开(公告)号：US4948286A
公开(公告)日：1990-08-14
申请号：US173974
申请日：1988-03-28
申请人： Jorg Hofmann
发明人： Jorg Hofmann
CPC分类号： B42F13/24
摘要： An ordering means for document files or the like comprises a base plate which is provided with at least two fixed ordering pins. At least one movable closure bow can be brought into closure contact with the ordering pins. Possibly a holder-down is provided which is adapted to be clamped with respect to the ordering pins. A locking member displaceable with respect to the base plate serves to adjust the closure bow or bows and on the base plate guide means are provided for guiding the locking member. The locking member is provided with guide slots or guide grooves via which the locking member is in engagement with each closure bow so that on displacement of the locking member the respective closure bow can be opened or closed.
摘要翻译： 用于文档文件等的订购装置包括设置有至少两个固定订购引脚的基板。 至少一个可移动的闭合弓可以与排序销闭合接触。 可能提供一个固定器，其适于相对于订购销夹紧。 可相对于基板移动的锁定构件用于调节封闭弓或弓，并且在基板引导装置上设置用于引导锁定构件。 锁定构件设置有引导槽或引导槽，通过该引导槽或引导槽，锁定构件与每个闭合弓弓接合，使得在锁定构件的移位时，可以打开或关闭相应的闭合弓。
-
公开(公告)号：US07772330B2
公开(公告)日：2010-08-10
申请号：US12693477
申请日：2010-01-26
申请人： Klaus Lorenz , Jorg Hofmann
发明人： Klaus Lorenz , Jorg Hofmann
CPC分类号： B01J27/26 , C08G18/36 , C08G18/4866 , C08G65/2663 , C08G2190/00 , Y10S521/914
摘要： The present invention provides a process for conditioning double metal cyanide (DMC) catalysts, which are employed in the preparation of polyether polyols based on starter compounds having active hydrogen atoms, the preparation of polyether polyols using the conditioned catalysts and the use of the polyether polyols prepared in this way for the preparation of polyurethane materials.
-
公开(公告)号：US07687599B2
公开(公告)日：2010-03-30
申请号：US11375939
申请日：2006-03-15
申请人： Klaus Lorenz , Jorg Hofmann , Hartmut Nefzger
发明人： Klaus Lorenz , Jorg Hofmann , Hartmut Nefzger
IPC分类号： C08G59/00
CPC分类号： C08G18/4887 , C08G65/2615 , C08G65/3311
摘要： The invention is directed to novel poly(ether-ester)polyols, processes for their production from monocarboxylic or polycarboxylic acid esters with one or more bound polyether chain(s). This invention also relates to the production of polyurethane materials in which the isocyanate-reactive component comprises these poly(ether-ester)polyols.
摘要翻译： 本发明涉及新的聚（醚 - 酯）多元醇，其由具有一个或多个结合的聚醚链的单羧酸酯或多元羧酸酯生产的方法。 本发明还涉及其中异氰酸酯反应性组分包含这些聚（醚 - 酯）多元醇的聚氨酯材料的生产。
-
公开(公告)号：US07678729B2
公开(公告)日：2010-03-16
申请号：US11804546
申请日：2007-05-18
申请人： Klaus Lorenz , Jorg Hofmann
发明人： Klaus Lorenz , Jorg Hofmann
CPC分类号： B01J27/26 , C08G18/36 , C08G18/4866 , C08G65/2663 , C08G2190/00 , Y10S521/914
摘要： The present invention provides a process for conditioning double metal cyanide (DMC) catalysts, which are employed in the preparation of polyether polyols based on starter compounds having active hydrogen atoms, the preparation of polyether polyols using the conditioned catalysts and the use of the polyether polyols prepared in this way for the preparation of polyurethane materials.
摘要翻译： 本发明提供了一种调节双金属氰化物（DMC）催化剂的方法，其用于制备基于具有活性氢原子的起始化合物的聚醚多元醇，使用经调节的催化剂制备聚醚多元醇以及使用聚醚多元醇 以这种方式制备用于制备聚氨酯材料。
-
公开(公告)号：US20050120771A1
公开(公告)日：2005-06-09
申请号：US10962965
申请日：2004-10-12
申请人： Jorg Hofmann , Gerhard Matcht , Peter Landes
发明人： Jorg Hofmann , Gerhard Matcht , Peter Landes
CPC分类号： B29C47/90 , B29C47/0023 , B29C47/003 , B29C47/0867 , B29C47/8835 , B29C47/8895 , B29C47/903 , B29C47/904 , B29C47/905 , B29C2035/1616 , B29C2791/006 , B29L2031/005
摘要： The invention relates to a quick set-up system for calibration devices located downstream from an extruder, in particular one for synthetic profiles. With this quick set-up system, a dry gauge and the vacuum tank(s) are mounted on two horizontally positioned tubes that are positively connected to the calibration stage, such that they can be moved and adjusted horizontally and vertically, which enables an exact advance adjustment of the gliding device, and with it, of the vacuum tanks and calibration device, thus eliminating a subsequent alignment. In addition, by installing a central water disposal system, the required replacement of hoses with different lengths when moving the vacuum tanks is avoided.
摘要翻译： 本发明涉及一种用于位于挤出机下游的校准装置的快速安装系统，特别是用于合成轮廓的快速安装系统。 使用这种快速安装系统，干式压力表和真空罐安装在两个水平定位的管上，这些管正确连接到校准台，使其可以水平和垂直移动和调节，这使得精确 通过滑动装置及其与真空罐和校准装置的预调节，从而消除随后的对准。 此外，通过安装中央水处理系统，避免了在移动真空槽时需要更换不同长度的软管。
-
-
-
-
-
-
-
-
-
搜索结果
20 条记录 (耗时 0.039 秒)
