公开(公告)号：US4731448A

公开(公告)日：1988-03-15

申请号：US937600

申请日：1986-12-03

申请人： Heinz Issler ,  Siegfried Kintopf ,  Lutz Konig ,  Hans Stephan

发明人： Heinz Issler ,  Siegfried Kintopf ,  Lutz Konig ,  Hans Stephan

IPC分类号： C07D211/46

CPC分类号： C07D211/46

摘要： There is disclosed a process for the preparation of 1-(2-hydroxyethyl-2,2,6,6-tetramethyl-4-piperidinol from triacetoneamine, which comprises first reducing triacetoneamine in water and/or a polar organic solvent by catalytic hydrogenation to 2,2,6,6-tetramethyl-4-piperidinol, and adding a catalytic amount of acid to the resultant solution, without isolation of the intermediate, after optional concentration of the solution by distillation, and subsequently reacting the 2,2,6,6-tetramethyl-4-piperidinol with ethylene oxide.1-(2-Hydroxyethyl)-2,2,6,6-tetramethyl-4-piperidinol is a useful light and heat stabilizer for plastics and is, in addition, a valuable intermediate for the synthesis of further light stabilizer additives.

摘要翻译： 公开了从三丙酮胺制备1-（2-羟基乙基-2,2,6,6-四甲基-4-哌啶醇）的方法，该方法包括首先通过催化氢化在水和/或极性有机溶剂中还原三丙酮胺， 2,2,6,6-四甲基-4-哌啶醇，并且在通过蒸馏任选浓缩溶液后，向所得溶液中加入催化量的酸，而不分离中间体，随后使2,2,6,6-四甲基-4-哌啶醇反应 ，6-四甲基-4-哌啶醇与环氧乙烷，1-（2-羟乙基）-2,2,6,6-四甲基-4-哌啶醇是塑料的有用的光热稳定剂，另外还有一个有价值的 用于合成其它光稳定剂添加剂的中间体。

公开(公告)号：US06489605B1

公开(公告)日：2002-12-03

申请号：US09496080

申请日：2000-02-01

申请人： Maria Ritz ,  Lutz Konig ,  Ludger Woste

发明人： Maria Ritz ,  Lutz Konig ,  Ludger Woste

IPC分类号： A61H300

CPC分类号： A61F9/08

摘要： The invention relates to a device to aid the orientation of blind and partially sighted people. The device comprises a long cane and an additional device comprising a laser measuring system. By transmitting and receiving laser beams the laser measuring system detects objects in a planar detection area of a detection plane containing the long cane. Indicating means indicates the presence and the absence of objects in this planar detection area by a first and by a second information, respectively, for example by the presence of a determined signal and by the absence of a determined signal. This allows to detect objects above the long cane.

摘要翻译： 本发明涉及一种帮助盲人和部分目击者的方向的装置。 该装置包括长的拐杖和包括激光测量系统的附加装置。 通过发射和接收激光束，激光测量系统检测包含长杖的检测平面的平面检测区域中的物体。 指示装置分别通过第一信息和第二信息来表示该平面检测区域中的对象的存在和不存在，例如通过确定信号的存在和不存在所确定的信号。 这样可以检测长杖上方的物体。