Butyrolactone-preparation process
    1.
    发明授权
    Butyrolactone-preparation process 失效
    丁内酯制备工艺

    公开(公告)号:US5962700A

    公开(公告)日:1999-10-05

    申请号:US11607

    申请日:1998-02-12

    CPC分类号: C07D315/00

    摘要: A process for the preparation of butyrolactones of the formula I ##STR1## where the substituents R.sup.1 and R.sup.2 are hydrogen, alkyl or hydroxyalkyl groups, or aryl and trialkylsilyl groups, if appropriate carrying inert: substituents, is described in which an alkyne of the formula IIR.sup.1 --C.tbd.C--R.sup.2 IIwhere the substituents have the meanings indicated above, is reacted under reducing conditions at elevated pressure and elevated temperature with carbon monoxide CO and hydrogen in the presence of a transition metal catalyst or with carbon monoxide and water in the presence of a transition metal catalyst.

    摘要翻译: PCT No.PCT / EP96 / 03472 Sec。 371日期1998年2月12日 102(e)日期1998年2月12日PCT 1996年8月6日PCT PCT。 公开号WO97 / 07111 日期1997年2月27日描述了制备式I的丁内酯的方法,其中取代基R 1和R 2是氢,烷基或羟基烷基,或芳基和三烷基甲硅烷基,如果适用的话带有惰性:取代基,其中描述了炔 其中取代基具有上述含义的式IIR1-C 3BOND C-R2II在还原条件下在升高的压力和升高的温度下与一氧化碳CO和氢在过渡金属催化剂或一氧化碳和水的存在下反应 过渡金属催化剂的存在。

    Carbonylation of olefins
    2.
    发明授权
    Carbonylation of olefins 失效
    烯烃的羰基化

    公开(公告)号:US5705683A

    公开(公告)日:1998-01-06

    申请号:US765739

    申请日:1997-01-13

    CPC分类号: C07C51/14

    摘要: The process for carbonylating olefins with carbon monoxide in the presence of water, an alcohol or a carboxylic acid and a halogen-free catalyst comprises using a catalyst comprising nickel or a nickel compound and at least one of the metals of the group consisting of chromium, molybdenum, tungsten, rhenium, ruthenium, osmium, rhodium, iridium, palladium, platinum, silver and gold, or a compound of these metals.

    摘要翻译: PCT No.PCT / EP95 / 02560 Sec。 371日期1997年1月13日 102(e)日期1997年1月13日PCT提交1995年7月3日PCT公布。 出版物WO96 / 02487 日期1996年2月1日在水,醇或羧酸和无卤素催化剂的存在下用一氧化碳羰基化烯烃的方法包括使用包含镍或镍化合物的催化剂和至少一种金属 由铬,钼,钨,铼,钌,锇,铑,铱,钯,铂,银和金组成的组或这些金属的化合物。

    Process for the preparation of 1,4-butanediol monoethers
    3.
    发明授权
    Process for the preparation of 1,4-butanediol monoethers 失效
    1,4-丁二醇单醚的制备方法

    公开(公告)号:US06103939A

    公开(公告)日:2000-08-15

    申请号:US426957

    申请日:1999-10-26

    CPC分类号: C07C41/26

    摘要: A process for preparing tetrahydrofuran, which comprises reacting 1,4-butenediol diethers of the formulae I and/or IIRO--CH.sub.2 --CH.dbd.CH--CH.sub.2 --OR IRO--CH.sub.2 --CH.sub.2 .dbd.CH--CH.sub.2 --OR II,where the R radicals can be identical or different and are C.sub.1 -C.sub.15 -alkyl or cycloalkyl radicals, C.sub.6 -C.sub.12 -aryl radicals or C.sub.7 -C.sub.15 -aralkyl radicals, with water and hydrogen at from 20 to 300.degree. C. under from 1 to 300 bar in the presence of catalysts or catalyst combinations which comprise components which are both capable of hydrogenation and have acidic or basic centers and a novel process for preparing 1,4-butanediol diethers of the formula I by metathesis are described.The invention furthermore relates to the separate preparation of 1,4-butanediol monoethers of the formula IIIHO--CH.sub.2 --CH.sub.2 --CH.sub.2 --CH.sub.2 --OR III,where R has the meanings indicated for formulae I and II, for which purpose 1,4-butanediol diethers of the formulae I and/or II are reacted as claimed in claim 1 with water and hydrogen in the presence of a hydrogenation catalyst at from 20 to 300.degree. C. under from 1 to 300 bar.

    摘要翻译: 一种制备四氢呋喃的方法,其包括使式I和/或IIRO-CH2-CH = CH-CH2-ORIRO-CH2-CH2 = CH-CH2-ORII的1,4-丁烯二醇二醚反应,其中R基团可以是 相同或不同的是C 1 -C 15 - 烷基或环烷基,C 6 -C 12 - 芳基或C 7 -C 15 - 芳烷基,其中水和氢在20-300℃下,在1至300巴下, 描述了包含能够氢化并具有酸性或碱性中心的组分的催化剂或催化剂组合,以及通过复分解制备式I的1,4-丁二醇二醚的新方法。 本发明还涉及分别制备式IIIHO-CH2-CH2-CH2-CH2-ORIII的1,4-丁二醇单醚,其中R具有式I和II所示的含义,为此目的1,4-丁二醇 式I和/或II的二醚在氢化催化剂存在下,在20-300℃,1〜300巴下,与水和氢反应,如权利要求1所述。

    Process for Selectively preparing carboxylic acids by carbonylation of
olefins
    5.
    发明授权
    Process for Selectively preparing carboxylic acids by carbonylation of olefins 失效
    通过烯烃羰基化选择性制备羧酸的方法

    公开(公告)号:US5866716A

    公开(公告)日:1999-02-02

    申请号:US697377

    申请日:1996-08-23

    IPC分类号: C07C51/14 C07C53/122

    CPC分类号: C07C51/14

    摘要: A process for selectively preparing a carboxylic acid by reacting an olefin with carbon monoxide in the presence of at least an equimolar amount of water with respect to the olefin at a temperature of from 50.degree. to 150.degree. C. and a pressure of from 30 to 150 bar and also in the presence of a halogen-free catalyst system consisting of rhodium or a rhodium compound and at least one nitrogen-containing heterocyclic compound as a promoter

    摘要翻译: 一种通过使烯烃与一氧化碳在至少等摩尔量的水存在下相对于烯烃在50至150℃的温度和30至30℃的压力下选择性制备羧酸的方法 存在由铑或铑化合物和至少一种含氮杂环化合物作为助催化剂的无卤催化剂体系的存在下

    ANTI-FOGGING AGENT BASED ON POLYGLYCEROL AND NATURAL OILS
    7.
    发明申请
    ANTI-FOGGING AGENT BASED ON POLYGLYCEROL AND NATURAL OILS 审中-公开
    基于多糖和天然油的抗静电剂

    公开(公告)号:US20110124785A1

    公开(公告)日:2011-05-26

    申请号:US12995249

    申请日:2009-06-02

    IPC分类号: C08K11/00

    CPC分类号: C09D171/02 C08K5/103 C09K3/18

    摘要: The invention provides an anti-fogging agent comprising an ester product and at least one further anti-fogging agent. The invention also relates to shaped articles and polymer compositions comprising such anti-fogging agents, and the preparation and use thereof.

    摘要翻译: 本发明提供一种防雾剂,其包含酯产物和至少一种其它防雾剂。 本发明还涉及包含这种防雾剂的成型制品和聚合物组合物及其制备和用途。

    Method for producing methyl formate
    8.
    发明申请
    Method for producing methyl formate 失效
    甲酸甲酯的生产方法

    公开(公告)号:US20050143598A1

    公开(公告)日:2005-06-30

    申请号:US10511088

    申请日:2003-04-15

    IPC分类号: C07C67/36

    CPC分类号: C07C67/36 C07C69/06

    摘要: The invention relates to a process for the preparation of methyl formate by reacting methanol with carbon monoxide at a pressure of from 0.5 to 10 MPa abs. and a temperature of from 50 to 150° C. in the presence of a metal alkoxide as catalyst in a reactor, in which a gas stream is withdrawn from the reactor, entrained methyl formate is removed from this gas stream by condensation, and all or some of the remaining gas stream is returned to the reactor as circulating-gas stream and a mean gas superficial velocity of from 1 to 20 cm/s is set in at least one region of the reactor in which the gas flows essentially in one direction.

    摘要翻译: 本发明涉及一种通过使甲醇与一氧化碳在0.5至10MPa abs的压力下反应制备甲酸甲酯的方法。 在反应器中从作为催化剂的金属醇盐存在下的温度为50-150℃,其中将气流从反应器中排出,夹带的甲酸甲酯通过冷凝从该气流中除去,全部或 一些剩余的气流作为循环气体流返回到反应器,并且在反应器的至少一个区域中设置1至20cm / s的平均气体空气速度,其中气体基本上在一个方向上流动。

    DEVICE AND METHOD FOR PERFORMING A FETAL PROCEDURE
    9.
    发明申请
    DEVICE AND METHOD FOR PERFORMING A FETAL PROCEDURE 有权
    用于执行场景的装置和方法

    公开(公告)号:US20100185209A1

    公开(公告)日:2010-07-22

    申请号:US12358163

    申请日:2009-01-22

    申请人: Martin Schafer

    发明人: Martin Schafer

    IPC分类号: A61B17/46 A61B17/42 A61D1/08

    CPC分类号: A61D1/08

    摘要: A device for performing fetotomy on a dead fetus or repositioning of a live fetus has a primary attachment in the form of a looped brace that is provided around a fetal limb within the birth canal of the mother animal and engages the armpit or groin of the fetus. An extension bar connects the brace to a tensioning device. A secondary attachment such as a cable or chain is attached at the foot of the fetal limb and connected to the tensioning device. The tensioning device is operated to provide tension between the brace and the secondary attachment, thereby placing the fetal limb in traction. Sufficient traction causes removal of the entire limb without exposing sharp bone edges. Variations of the device may be used for a fetal repositioning procedure.

    摘要翻译: 用于在死胎上进行胚胎切割术或重新定位活胎的装置具有环形支架的形式的主要附着物,其围绕母体动物的产道内的胎儿肢体提供并且与胎儿的腋窝或腹股沟接合 。 延伸杆将支架连接到张紧装置。 诸如电缆或链条的辅助附件附接在胎儿肢体的脚部并且连接到张紧装置。 操作张紧装置以在支架和辅助附件之间提供张力,从而将胎儿肢体放置在牵引中。 足够的牵引力会导致整个肢体的移除而不会暴露锋利的骨骼边缘。 设备的变化可用于胎儿重新定位过程。