专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 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。

2. 发明授权

US5659009A Production of filler-containing thermoplastic molding compositions and molding compositions obtainable in this way 失效
标题翻译：生产含有填料的热塑性成型组合物和以这种方式获得的成型组合物
公开(公告)号：US5659009A
公开(公告)日：1997-08-19
申请号：US560518
申请日：1995-11-17
申请人： Gunter Pipper , Walter Goetz , Claus Cordes , Josef Georg Floss , Guenter Mattern , Peter Hildenbrand , James Hurley , Karl Schlichting , Graham Edmund McKee , Gerd Blinne
发明人： Gunter Pipper , Walter Goetz , Claus Cordes , Josef Georg Floss , Guenter Mattern , Peter Hildenbrand , James Hurley , Karl Schlichting , Graham Edmund McKee , Gerd Blinne
IPC分类号： C08J3/20 , C08G69/26
CPC分类号： C08J3/201 , B29C47/92
摘要： In a process for producing filler-containing thermoplastic molding compositions by mixing fillers with thermoplastics in the melt,a) the fillers are mixed in a mixing apparatus in the melt with a low molecular weight thermoplastic having a melt viscosity of at most 30 Pas (measured at 20.degree. C. above the melting point of the thermoplastic compound and at a shear gradient of 1,000 s.sup.-1),b) the product thus obtained is removed from the mixing apparatus, cooled and comminuted, andc) the comminuted product is then subjected in the solid phase to a post-condensation.
摘要翻译：在通过在熔体中将填料与热塑性塑料混合来制造含填料的热塑性模塑组合物的方法中，a）将填料与熔体中的混合装置与熔体粘度至多为30Pa·s的低分子量热塑性混合物在热塑性化合物的熔点以上20℃，剪切梯度为1000s -1），b）将由此得到的产物从混合装置中取出，冷却并粉碎，然后c）粉碎产物在固相中进行后冷凝。

3. 发明授权

US5674973A Continuous production of low molecular weight polyamides 失效
标题翻译：连续生产低分子量聚酰胺
公开(公告)号：US5674973A
公开(公告)日：1997-10-07
申请号：US578703
申请日：1995-12-28
申请人： Gunter Pipper , Andreas Kleinke , Peter Hildenbrand
发明人： Gunter Pipper , Andreas Kleinke , Peter Hildenbrand
IPC分类号： C08G69/14 , B01J19/28 , C08G69/04 , C08G69/16 , C08G69/46 , C08G69/26 , C08G69/28
CPC分类号： C08G69/16 , C08G69/04
摘要： A process for the continuous production of polyamides from a mixture of at least one lactam and water and, if required, other monomer units and/or conventional additives and fillers under polyamide-forming conditions, where the mixture of the starting materials is heated in liquid phase in a first reaction zone until a conversion of at least 70% is reached, and undergoes adiabatic decompression and further polymerization in another reaction zone, wherein, in the first reaction zone, 0.5-7% by weight of water are employed, the temperature is increased to the range from 220.degree. to 310.degree. C., and polymerization is carried out until a conversion of at least 85% is reached and, in the second reaction zone, after the decompression further polymerization is carried out in the range from 215.degree. to 300.degree. C. without heat input.
摘要翻译： PCT No.PCT / EP94 / 01998 Sec。 371日期1995年12月28日第 102（e）1995年12月28日PCT PCT 1994年6月20日PCT公布。第WO95 / 01389号公报日期1995年1月12日一种在聚酰胺形成条件下从至少一种内酰胺和水的混合物以及如果需要的话其它单体单元和/或常规添加剂和填料连续生产聚酰胺的方法，其中起始材料在液相中在第一反应区中加热直到达到至少70％的转化率，并在另一个反应区进行绝热减压和进一步聚合，其中在第一反应区中为0.5-7重量％的水，温度升高到220℃至310℃，进行聚合直至达到至少85％的转化率，并且在第二反应区中，在进一步聚合进行进一步的聚合之后在215〜300℃的范围内，无需热量输入。

4. 发明授权

US5140098A Continuous preparation of linear high molecular weight polyamides having regulated amino and carboxyl end group content 失效
标题翻译：连续制备具有调节氨基和羧基端基含量的线性高分子量聚酰胺
公开(公告)号：US5140098A
公开(公告)日：1992-08-18
申请号：US729787
申请日：1991-07-10
申请人： Gunter Pipper , Peter Hildenbrand , Wolfgang F. Mueller
发明人： Gunter Pipper , Peter Hildenbrand , Wolfgang F. Mueller
IPC分类号： C08G69/28
CPC分类号： C08G69/28
摘要： Linear high molecular weight polyamides containing a regulated level of amino and carboxyl end groups are prepared in a continuous process by reacting polyamides in the melt with polyamide-forming diamines or dicarboxylic acids by continuous mixing for a residence time of .ltoreq.10 minutes, granulating the polyamide, and further condensing the polyamide granules thus obtained in solid phase in the presence of inert gases until the viscosity has reached the desired level.
摘要翻译：通过使熔体中的聚酰胺与形成聚酰胺的二胺或二羧酸反应，通过连续混合10分钟的停留时间，制备含有调节氨基和羧基端基水平的线性高分子量聚酰胺，制粒聚酰胺，并且在惰性气体的存在下，将由此获得的聚酰胺颗粒进一步冷凝，直到粘度达到所需水平。

5. 发明授权

US5412811A Headgear having a holding device for holding an instrument 失效
标题翻译：头饰具有用于保持器械的保持装置
公开(公告)号：US5412811A
公开(公告)日：1995-05-09
申请号：US955976
申请日：1992-10-02
申请人： Peter Hildenbrand , Walter Matuschek , Heinz Gottlob
发明人： Peter Hildenbrand , Walter Matuschek , Heinz Gottlob
IPC分类号： F21L4/00 , A61B19/00 , G02B23/16 , G02B27/02 , H04N5/64 , A42B3/04
CPC分类号： A42B3/0433 , A61B90/50 , F21L15/08 , G02B23/16 , A61B2090/502
摘要： The invention is directed to a headgear with a holding device for a measuring unit, illuminating unit or viewing unit. The headgear has a headband and a frontal band and is mounted on the head of the wearer of the headgear. A base body is mounted on the frontal band and a bracket for holding the unit is attached to said base body by a clamping device. The clamping device is manually actuable between a fixing position wherein the bracket is movably fixed relative to the base body and a releasing position wherein the bracket is released so as to permit movement of the bracket in elevation relative to the base body. A detent device permits the bracket to be rotated relative to the base body while the clamping device is in the fixing position.
摘要翻译：本发明涉及具有用于测量单元，照明单元或观察单元的保持装置的头带。头带具有头带和正面带，并且安装在头带佩戴者的头部上。基体安装在正面带上，用于保持单元的支架通过夹紧装置附接到所述基体。夹紧装置可以在支架相对于基体移动地固定的固定位置和释放位置之间手动地致动，其中支架被释放以允许支架相对于基体在高度上移动。定位装置允许支架相对于基体旋转，同时夹紧装置处于固定位置。

6. 外观设计

USD345798S Headband for supporting one or more medical instruments 失效
公开(公告)号：USD345798S
公开(公告)日：1994-04-05
申请号：US866249
申请日：1992-04-09
申请人： Peter Hildenbrand , Walter Matuschek , Heinz Gottlob
设计人： Peter Hildenbrand , Walter Matuschek , Heinz Gottlob

7. 发明申请

US20050176973A1 Method for producing pure trioxane 审中-公开
标题翻译：纯三恶烷生产方法
公开(公告)号：US20050176973A1
公开(公告)日：2005-08-11
申请号：US10514490
申请日：2003-05-13
申请人： Katrin Friese , Matthias Rauls , Reinhard Freyhof , Thorsten Friese , Harald Armbruster , Hartmut Zeiner , Gitta Egbers , Eckhard Strofer , Ludwig Heck , Peter Hildenbrand
发明人： Katrin Friese , Matthias Rauls , Reinhard Freyhof , Thorsten Friese , Harald Armbruster , Hartmut Zeiner , Gitta Egbers , Eckhard Strofer , Ludwig Heck , Peter Hildenbrand
IPC分类号： C07D323/06
CPC分类号： C07D323/06
摘要： A process for preparing trioxane by trimerization of formaldehyde in aqueous acidic solution and subsequently removing trioxane from a mixture substantially comprising trioxane, water and formaldehyde (crude trioxane product), which comprises a) distilling the crude trioxane product from the trimerization, b) crystallizing the trioxane out and c) removing it from the mother liquor and d) subsequently melting it and e) distilling off further by-products.
摘要翻译：一种通过在酸性水溶液中三聚甲醛制备三恶烷并随后从基本上包含三恶烷，水和甲醛（粗三恶烷产物）的混合物中除去三恶烷的方法，该方法包括：a）将粗三恶烷产物从三聚反应中蒸馏，b）使三氧化硅，c）将其从母液中除去，d）随后熔化，e）蒸馏出进一步的副产物。

8. 发明授权

US5708334A Method for controlling an electric drive of a vehicle 失效
标题翻译：用于控制车辆的电力驱动的方法
公开(公告)号：US5708334A
公开(公告)日：1998-01-13
申请号：US596913
申请日：1996-03-13
申请人： Rolf Schreiber , Rudiger Kogel , Peter Hildenbrand
发明人： Rolf Schreiber , Rudiger Kogel , Peter Hildenbrand
IPC分类号： B60L3/10 , B60L15/20 , H02P7/00
CPC分类号： B60L3/10 , B60L2200/26 , Y02T10/7258
摘要： A method for open-loop and closed-loop control of an electric drive of a vehicle, in particular of a rail vehicle, utilizes a frictional engagement between a wheel and a rail or an underlying surface, to a high degree. A control is carried out which takes into account a gradient of a characteristic frictional engagement line. The system operates with a substitute variable for the gradient, which can be detected by a technical measurement, and a set torque value which is prescribed by the operator being limited in such a way that a travel/braking mode is achieved at an optimum, prescribed operating point of the characteristic frictional engagement line.
摘要翻译：一种用于车辆，特别是轨道车辆的电力驱动器的开环和闭环控制的方法利用轮子和轨道或下面的表面之间的摩擦接合。进行考虑了特征摩擦接合线的坡度的控制。该系统用梯度的替代变量进行操作，其可以通过技术测量来检测，并且由操作者规定的设定扭矩值被限制为以最佳规定的行驶/制动模式特征摩擦接合线的工作点。

9. 发明授权

US4912163A Thermoplastic polyester molding materials having low temperature impact strength 失效
标题翻译：具有低温冲击强度的热塑性聚酯成型材料
公开(公告)号：US4912163A
公开(公告)日：1990-03-27
申请号：US390290
申请日：1989-08-07
申请人： Dietrich Lausberg , Juergen Vietmeier , Graham E. McKee , Hans-Georg Braun , Peter Hildenbrand
发明人： Dietrich Lausberg , Juergen Vietmeier , Graham E. McKee , Hans-Georg Braun , Peter Hildenbrand
IPC分类号： C08L23/08 , C08L51/00 , C08L51/04 , C08L51/06 , C08L67/00 , C08L67/02 , C08L69/00
CPC分类号： C08L67/02 , C08L69/00
摘要： Thermoplastic polyester molding materials essentially contain(A) from 20 to 89% by weight of one or more aliphatic polyesters of an aromatic dicarboxylic acid,(B) from 10 to 79% by weight of one or more aromatic polycarbonates and(C) from 1 to 40% by weight of an elastomer or of a mixture of elastomers consisting ofCA from 5 to 100% by weight of an elastomeric graft polymer composed ofCA1 not less than 50% by weight of a grafting base having a glass transition temperature T.sub.g of less than -20.degree. C.,CA2 from 5 to 20% by weight of a first graft shell consisting of a mixture of a C.sub.1 -C.sub.8 -alkyl ester of acrylic acid and a vinylaromatic in a weight ratio of from 5:95 to 70:30 andCA3 from 10 to 30% by weight of a second graft shell consisting of one or more polymers having a glass transition temperature T.sub.g above 20.degree. C. andCB from 0 to 95% by weight of an ethylene copolymer composed of CB1 from 40 to 99% by weight of ethylene and CB2 from 1 to 60% by weight of one or more comonomers containing carboxyl groups and/or carboxyl group derivatives,the sum of A to C, CA and CB, CA1 to CA3 and of CB1 and CB2 being 100% by weight in each case.
摘要翻译：热塑性聚酯成型材料基本上含有（A）20至89重量％的一种或多种芳族二羧酸的脂族聚酯，（B）10至79重量％的一种或多种芳族聚碳酸酯和（C）1 至40重量％的弹性体或由CA组成的弹性体的混合物，其由5至100重量％的弹性体接枝聚合物组成，弹性体接枝聚合物由CA1组成，不小于50重量％的玻璃化转变温度Tg为小于-20℃，CA2为5至20重量％的由丙烯酸的C1-C8烷基酯和乙烯基芳族化合物的混合物组成的第一接枝壳，其重量比为5:95至70 ：30和CA3为10至30重量％的由玻璃化转变温度Tg高于20℃的一种或多种聚合物组成的第二接枝壳，CB为0至95重量％的由CB1组成的乙烯共聚物 40至99重量％的乙烯和CB 2为1至60重量％的一种或多种共聚单体含有羧基和/或羧基衍生物时，A〜C，CA和CB，CA1〜CA3和CB1和CB2的总和在每种情况下为100重量％。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式