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24 条记录 (耗时 0.019 秒)

    2-acyl-6-methylnaphthalene preparation
    1.
    发明授权
    2-acyl-6-methylnaphthalene preparation 失效
    2-酰基-6-甲基萘制备

    公开(公告)号：US5138098A

    公开(公告)日：1992-08-11

    申请号：US669377

    申请日：1991-03-14

    申请人： Gary P. Hagen ,  Gregory E. Schmidt ,  John M. Weis ,  Thomas G. Smith

    发明人： Gary P. Hagen ,  Gregory E. Schmidt ,  John M. Weis ,  Thomas G. Smith

    IPC分类号： C07C45/46 ,  C07C45/80 ,  C07C45/81

    CPC分类号： C07C45/46 ,  C07C45/80 ,  C07C45/81

    摘要： A regioselective acylation process is provided for coverting a 2-methylnaphthalene compound to a 2-acetyl-6-methylnaphthalene compound. The process is conducted under liquid phase conditions in an acylation inert solvent using a complexing agent which is regiospecific for the beta position of naphthalene and which is a thermally stable nitrohydrocarbon compound. Preferred such agents are nitrobenzene, o-nitrotoluene, and mesitylene. Also provided is a novel method for producing a 2-acetyl-6-methylnaphthalene compound of relatively high purity from isomer mixtures by recrystallization from a hydrocarbon solvent, such as n-octane, isooctane, or n-nonane.

    摘要翻译： 提供了一种区域选择性酰化方法，用于将2-甲基萘化合物用于2-乙酰基-6-甲基萘化合物。 该方法在液相条件下在酰化惰性溶剂中进行，使用对于萘的β位具有区域特异性且为热稳定性的硝基烃化合物的络合剂。 优选的这种试剂是硝基苯，邻硝基甲苯和均三甲苯。 还提供了从烃溶剂如正辛烷，异辛烷或正壬烷中重结晶制备异构体混合物中相对高纯度的2-乙酰基-6-甲基萘化合物的新方法。

    Method and system for extending catalyst useful life
    4.
    发明授权
    Method and system for extending catalyst useful life 失效
    延长催化剂使用寿命的方法和系统

    公开(公告)号：US5241114A

    公开(公告)日：1993-08-31

    申请号：US919784

    申请日：1986-10-16

    申请人： Thomas G. Smith ,  Owen H. Bailey ,  Gary P. Hagen

    发明人： Thomas G. Smith ,  Owen H. Bailey ,  Gary P. Hagen

    IPC分类号： B01J21/08 ,  B01J23/04 ,  B01J27/182

    CPC分类号： B01J27/182 ,  B01J21/08 ,  B01J23/04

    摘要： A method and a system for extending useful life of a basic catalyst are disclosed. The basic catalyst comprises a particulate, porous, siliceous catalyst support and an alkali metal in the +1 oxidation state on the catalyst support surface. The catalyst is suitable for the synthesis of an alpha, beta-ethylenically unsaturated carboxylic acid by condensation of a saturated carboxylic acid with formaldehyde. The method of the present invention contemplates providing a reactor, or a series of reactors, containing the basic catalyst and a confined source of the alkali metal associated with a suitable carrier, upstream of the reactor or reactors. A feed stream to the reactor is passed first through the confined source and thereafter through the reactor while reaction conditions for the condensation reaction are maintained within the reactor. The temperature of the feed stream passing through the confined source can be modulated to control release of the alkali metal from the carrier. Alkali metal released from the carrier is entrained into the feed stream passing through the confined source and is deposited onto the support in the reactor as the feed stream is passed through the reactor. Feed stream flow through the reactor or reactors can be reversed and/or interchanged as long as the confined alkali metal source remains upstream of one or more of the reactors, i.e., the upstream-most of the reactors in a series of staged reactors can function as the confined alkali metal source as well.

    摘要翻译： 公开了一种延长碱性催化剂使用寿命的方法和系统。 碱性催化剂包括颗粒状，多孔的硅质催化剂载体和催化剂载体表面+1 +1氧化态的碱金属。 该催化剂适用于通过饱和羧酸与甲醛的缩合合成α，β-烯属不饱和羧酸。 本发明的方法设想提供反应器或一系列反应器，其包含碱性催化剂和与反应器或反应器上游的合适载体缔合的碱金属的限定源。 首先通过限制源进料到反应器的进料流，然后通过反应器，同时在反应器内保持缩合反应的反应条件。 可以调节通过限制源的进料流的温度，以控制碱金属从载体的释放。 从载体释放的碱金属被夹带进入通过限制源的进料流中，并且当进料流通过反应器时沉积在反应器中的载体上。 只要限制的碱金属源保留在一个或多个反应器的上游，即可以使反应器或反应器中的原料流流动反向和/或互换，即，一系列分级反应器中最上游的反应器可以起作用 作为限定的碱金属源。

    Preparation of 2-acyl-6-methylnaphthalenes
    5.
    发明授权
    Preparation of 2-acyl-6-methylnaphthalenes 失效
    2-酰基-6-甲基萘的制备

    公开(公告)号：US5026917A

    公开(公告)日：1991-06-25

    申请号：US486783

    申请日：1990-03-01

    申请人： Gary P. Hagen ,  Gregory E. Schmidt ,  John M. Weis ,  Thomas G. Smith

    发明人： Gary P. Hagen ,  Gregory E. Schmidt ,  John M. Weis ,  Thomas G. Smith

    IPC分类号： C07C45/46 ,  C07C45/80 ,  C07C45/81 ,  C07C45/82

    CPC分类号： C07C45/82 ,  C07C45/46 ,  C07C45/80 ,  C07C45/81

    摘要： A regioselective acetylation process is provided for converting a 2-methylnaphthalene compound to a 2-acetyl-6-methylnaphthalene compound. The process is conducted under liquid phase conditions using a new complexing agent which is regiospecific for the beta position of naphthalene and which is an electron-rich, carbon-based compound. A preferred such agent is hexamethylbenzene. Also provided is a novel method for producing a 2-acetyl-6-methylnaphthalene compound of relative high purity from isomer mixtures by recrystallization from a hydrocarbon solvent, such as n-octane, isooctane, or n-nonane.

    摘要翻译： 提供了一种区域选择性乙酰化方法，用于将2-甲基萘化合物转化为2-乙酰基-6-甲基萘化合物。 该方法在液相条件下使用对于萘的β位具有区域特异性，并且是富电子的碳基化合物的新的络合剂进行。 优选的这种试剂是六甲基苯。 还提供了通过从烃溶剂如正辛烷，异辛烷或正壬烷中重结晶制备异构体混合物中相对高纯度的2-乙酰基-6-甲基萘化合物的新方法。

    Adaptive color rendering by an inkjet printer based on object type
    6.
    发明授权
    Adaptive color rendering by an inkjet printer based on object type 失效
    基于对象类型的喷墨打印机的自适应显色

    公开(公告)号：US5704021A

    公开(公告)日：1997-12-30

    申请号：US189006

    申请日：1994-01-27

    申请人： Thomas G. Smith ,  Kirt Alan Winter ,  Frank Anthony Kurucz

    发明人： Thomas G. Smith ,  Kirt Alan Winter ,  Frank Anthony Kurucz

    IPC分类号： B41J2/21 ,  G06F3/12 ,  G06T1/00 ,  G06T5/00 ,  H04N1/46 ,  G06K15/00 ,  G03F3/08

    CPC分类号： H04N1/6072

    摘要： A method of using a printer system for identifying one or more different types of color objects in a document, selecting a preferred rendering option such as halftoning and/or color matching for each one of such different color object types, respectively, and then printing the document in accordance with the rendering options selected for each of such different color object types. In a printing system such as an inkjet color printer coupled through a printer driver to a host computer, a default halftoning technique and a default color-matching map are incorporated into the printer system for automatic invocation whenever a particular color object type is printed.

    摘要翻译： 一种使用打印机系统来识别文档中的一种或多种不同类型的彩色对象的方法，分别为这些不同的颜色对象类型中的每一种分别选择诸如半色调和/或颜色匹配的优选渲染选项，然后打印 根据为这些不同颜色对象类型中的每一个选择的呈现选项的文档。 在诸如通过打印机驱动程序耦合到主计算机的喷墨彩色打印机的打印系统中，默认半色调技术和默认色彩匹配图被合并到打印机系统中，以便每当打印特定颜色对象类型时自动调用。

    Method for forming dual gloss coating
    7.
    发明授权
    Method for forming dual gloss coating 失效
    双光泽涂层的形成方法

    公开(公告)号：US4464423A

    公开(公告)日：1984-08-07

    申请号：US248126

    申请日：1981-03-27

    申请人： Michael H. LaBianca ,  Thomas G. Smith

    发明人： Michael H. LaBianca ,  Thomas G. Smith

    IPC分类号： B05D5/06 ,  B41M3/00 ,  B41M7/00 ,  B44F1/02 ,  B05D5/00

    CPC分类号： B44F1/02 ,  B05D5/061 ,  B41M3/00 ,  B41M7/0054 ,  B05D7/536

    摘要： A dual gloss coating is formed on a substrate by first applying to the substrate a continuous layer of curable polyurethane or PVC plastisol or organosol. After the layer is at least partially cured, a second discontinuous layer of the same or different urethane or PVC plastisol or organosol is applied to selected areas of the surface of the first layer by rotogravure printing, using a rotogravure cylinder having a number of lines per inch sufficient to produce a difference in gloss effect between the discontinuous layer and the continuous layer after complete curing of the layers, and then completing the cure of the layers.

    摘要翻译： 通过首先将可固化的聚氨酯或PVC增塑溶胶或有机溶胶的连续层施加到基材上，形成双光泽涂层。 在该层至少部分固化之后，通过凹版印刷将相同或不同的聚氨酯或PVC增塑溶胶或有机溶胶的第二不连续层施加到第一层表面的选定区域，使用具有多条线的轮转凹版印刷滚筒 足以在层完全固化之后产生不连续层和连续层之间的光泽效果的差异，然后完成层的固化。

    Aromatic transformation process
    10.
    发明授权
    Aromatic transformation process 失效
    芳香族转化过程

    公开(公告)号：US5210353A

    公开(公告)日：1993-05-11

    申请号：US620529

    申请日：1990-11-30

    申请人： Carl A. Udovich ,  E. William Breder, Jr. ,  Ibrahim Ghanayem ,  Mark W. Meszaros ,  Thomas E. Nemo ,  Thomas G. Smith

    发明人： Carl A. Udovich ,  E. William Breder, Jr. ,  Ibrahim Ghanayem ,  Mark W. Meszaros ,  Thomas E. Nemo ,  Thomas G. Smith

    IPC分类号： C07C6/12

    CPC分类号： C07C6/126

    摘要： A process is provided for transaralkylating a class of starting compounds comprised of aryl-substituted lower alkanes and aryl-substituted fused alkylene ring compounds to produce derivatives of such compounds wherein benzyl substituents thereof have different alkyl substituents compared to the starting compounds. The process is carried out by admixing such a starting compound with a lower alkyl-substituted aromatic compound under liquid phase conditions in the presence of a catalytically effective amount of a Friedel-Crafts catalyst. The process makes possible new and economical routes for synthesizing desired lower alkyl-substituted benzyl group containing compounds, such as 2,2-di(lower alkyl-substituted) phenyl propanes and 1,3,3-trimethyl-1-(lower alkyl-substituted)-phenyl indans. Thus, there is provided a three-step process for making dixylylpropane from alpha methyl styrene and also a two-step process for making 1,3,3,6-tetramethyl-1-o-xylyl indan from alpha-4-dimethyl styrene. Provided also is a process for preparing 3,3',4,4'-dixylylmethane from a mixture of isomeric dixylylmethanes.

    摘要翻译： 提供了一种方法，用于将由芳基取代的低级烷烃和芳基取代的稠合亚烷基环化合物组成的一类起始化合物转烷基化以产生这样的化合物的衍生物，其中苄基取代基与起始化合物相比具有不同的烷基取代基。 该方法通过在液相条件下在催化有效量的Friedel-Crafts催化剂的存在下将这种起始化合物与低级烷基取代的芳族化合物混合来进行。 该方法可用于合成所需的低级烷基取代苄基化合物如2,2-二（低级烷基取代的）苯基丙烷和1,3,3-三甲基-1-（低级烷基取代的苄基） 取代的） - 苯基茚二酮。 因此，提供了由α-甲基苯乙烯制备二甲苯基丙烷的三步法，以及由α-4-二甲基苯乙烯制备1,3,3,6-四甲基-1-邻苯二甲酰基茚二酮的两步法。 还提供了从异构二烷基甲烷的混合物制备3,3'，4,4'-二甲苯基甲烷的方法。