Process for the preparation of aromatic urethanes
    41.
    发明授权
    Process for the preparation of aromatic urethanes 失效
    芳香族聚氨酯的制备方法

    公开(公告)号:US4163861A

    公开(公告)日:1979-08-07

    申请号:US851739

    申请日:1977-11-15

    CPC classification number: C07C271/06

    Abstract: An aromatic urethane (e.g., methyl naphthyl urethane) is prepared by reacting an aromatic hydroxy compound, such as alpha-naphthol, with an aliphatic urethane, such as dimethyl urethane, in the presence of a catalyst consisting of a Lewis acid.

    Abstract translation: 通过在由路易斯酸组成的催化剂存在下使芳族羟基化合物如α-萘酚与脂肪族氨基甲酸酯如二甲基氨基甲酸酯反应来制备芳族氨基甲酸酯(例如甲基萘基氨基甲酸酯)。

    Adjustable apparatus for supporting a pipeline laid on deep waters and
for impressing thereto a preselected geometrical configuration
    43.
    发明授权
    Adjustable apparatus for supporting a pipeline laid on deep waters and for impressing thereto a preselected geometrical configuration 失效
    用于支撑铺设在深水上的管道并用于向其施加预选的几何构造的可调节装置

    公开(公告)号:US4147455A

    公开(公告)日:1979-04-03

    申请号:US868494

    申请日:1978-01-11

    CPC classification number: F16L3/00 F16L1/20

    Abstract: A compact structure is disclosed for supporting a pipeline suspended over a sea bottom vale. In a preferred embodiment, the structure has a triangular outline, the sloping side of the triangle being a guideway of a wedge slidable unidirectionally, that is only upwards, until contacting the pipe to be supported.Actuating mechanisms are provided for the movable members of the triangular structure. The entire structure is mounted on a base plate and can be towed by a subsea vehicle until reaching the correct position.

    Abstract translation: 公开了一种用于支撑悬挂在海底坑上的管道的紧凑结构。 在优选实施例中,该结构具有三角形轮廓,三角形的倾斜侧是可单向滑动的楔形物的导轨,仅向上,直到接触待支撑的管。

    Process for the production of polymers and copolymers of isobutylene
    46.
    发明授权
    Process for the production of polymers and copolymers of isobutylene 失效
    用于生产异丁烯的聚合物和共聚物的方法

    公开(公告)号:US4107417A

    公开(公告)日:1978-08-15

    申请号:US503600

    申请日:1974-09-06

    CPC classification number: C08F10/10

    Abstract: A process is described whereby homopolymers and copolymers of isobutylene are prepared by effecting the polymerization at a temperature in the range of -100.degree. to 30.degree. C in the presence of a catalyst system including:(a) a compound selected from the group consisting of: AlCl.sub.3, AlBr.sub.3, AlEtCl.sub.2, TiCl.sub.4, SnCl.sub.4, SiCl.sub.4, VCl.sub.4, BF.sub.3, Al.sub.2 Et.sub.3 Cl.sub.3, SbCl.sub.5, SbF.sub.5, FeCl.sub.3, VOCl.sub.3, ZrCl.sub.4, AlI.sub.3, GaCl.sub.3 ; and(b) a compound adapted to react with the compounds of group (a) and selected from the group consisting of: SnR.sub.4, SnRX.sub.3, SrR.sub.4, TiX.sub.2 (OR).sub.2, Ti(OR).sub.4, PbR.sub.4, Ti(OR)X.sub.3, VO(OR).sub.3, Ti(OR).sub.3 X, (C.sub.5 H.sub.5).sub.2 Ti(C.sub.6 H.sub.5).sub.2, (C.sub.5 H.sub.5).sub.2 Ti(CH.sub.3).sub.2, Ti(Acac).sub.4, SnCl.sub.2 (acetate).sub.2 in which R is a hydrocarbon radical with from 1 to 10 carbon atoms and X is a halogen atom.The process is of particular value in the production of butyl rubber through the copolymerization of isobutylene and isoprene.

    Abstract translation: 描述了一种方法,其中通过在-100至30℃范围内的温度下,在催化剂体系存在下进行聚合制备异丁烯的均聚物和共聚物,所述催化剂体系包括:

    Method for constructing a thermoelectric module and the module so
obtained
    48.
    发明授权
    Method for constructing a thermoelectric module and the module so obtained 失效
    用于构造热电模块的方法和如此获得的模块

    公开(公告)号:US4081895A

    公开(公告)日:1978-04-04

    申请号:US724544

    申请日:1976-09-20

    CPC classification number: H01L35/34 B23K35/3013 H01L35/08 Y10S257/93

    Abstract: This invention relates to a method for constructing a thermoelectric module, as well as to the module so obtained. The method according to the invention comprises the steps of construction a reference shoulder on the semiconductor bar, assembling the semiconductor bars in series by using an insulating cement, cleaning the surfaces, gold plating, nickel plating, brasing copper electrodes, machining the regions between the elements which have to remain insulated, protecting the copper electrodes by nickel or chromium plating. The thermoelectric module so obtained consists of a matrix of semiconductor elements with all the mechanical and electrical connections incorporated, including the input and output terminals.

    Abstract translation: 本发明涉及一种用于构造热电模块的方法以及如此获得的模块。 根据本发明的方法包括以下步骤:在半导体棒上构造参考台肩,通过使用绝缘水泥,清洁表面,镀金,镀镍,镀铜铜电极串联组装半导体棒, 必须保持绝缘的元件,通过镍或铬电镀保护铜电极。 如此获得的热电模块由包括输入和输出端子的所有机械和电气连接的半导体元件矩阵组成。

    Process for the synthesis of substituted indolenines
    50.
    发明授权
    Process for the synthesis of substituted indolenines 失效
    合成取代的吲哚烯的方法

    公开(公告)号:US4062865A

    公开(公告)日:1977-12-13

    申请号:US565132

    申请日:1975-04-04

    CPC classification number: C07D209/08 C07F3/003

    Abstract: A process for the preparation of substituted indolenines of the formula: ##STR1## wherein R is hydrogen, alkyl, aryl or cycloalkyl, halogen, or a functional group selected from among cyano, hydroxyl, alkoxy, nitro or sulphonic groups, and wherein R.sub.1, R.sub.2 and R.sub.3 are the same, or different, and are selected from alkyl, aryl or cycloalkyl radicals, comprising reacting in the presence of an organic solvent an aromatic amine of the formula: ##STR2## with a tertiary hydroxyketone of the formula: ##STR3## wherein R, R.sub.1, R.sub.2 and R.sub.3 have the same meanings as defined above, in the presence of a catalyst selected from mineral acids, organic acids, Lewis acids or ionic exchange resins in acid form, and wherein said aromatic amine is slightly in excess, to form first an imine of the formula: ##STR4## under reaction conditions wherein the solvent is removed by azeotropic distillation, and thereafter continuing the reaction to remove water and cyclizing to the desired indolenines. In a preferred embodiment, 2,3,3-trimethylindolenine is prepared by reacting an excess of aniline with 3-methyl-3-hydroxybutan-2-one in the presence of ZnCl.sub.2 as catalyst utilizing benzene as solvent. The substituted indolenines obtained are useful in production of dyes and other compounds useful in the dyeing and photographic industries.

    Abstract translation: 制备下式的取代的吲哚宁的方法:其中R是氢,烷基,芳基或环烷基,卤素或选自氰基,羟基,烷氧基,硝基或磺酸基的官能团,其中R1 R 2和R 3相同或不同,并且选自烷基,芳基或环烷基,包括在有机溶剂存在下,使下式的芳族胺与下式的叔羟基酮反应: 在其中R,R 1,R 2和R 3具有与上述相同的含义,在选自无机酸,有机酸,路易斯酸或酸形式的离子交换树脂的催化剂存在下,其中所述芳族胺为 稍微过量,以在其中通过共沸蒸馏除去溶剂的反应条件下首先形成下式的亚胺,然后继续反应以除去水并环化成所需的吲哚乙烯。 在优选的实施方案中,通过使用苯作为溶剂,在过量的苯胺与3-甲基-3-羟基丁-2-酮的存在下,在作为催化剂的ZnCl 2存在下反应来制备2,3,3-三甲基甲硼烷。 获得的取代的吲哚宁可用于染色和其它可用于染色和照相工业的化合物的生产。

Patent Agency Ranking