Aircraft boarding bridge or aircraft boarding stairs
    72.
    发明授权
    Aircraft boarding bridge or aircraft boarding stairs 有权
    飞机登机桥或飞机登机楼梯

    公开(公告)号:US07690065B2

    公开(公告)日:2010-04-06

    申请号:US11807097

    申请日:2007-05-29

    IPC分类号: E01D1/00

    CPC分类号: B64F1/305

    摘要: The subject matter of the invention is an aircraft boarding bridge or aircraft boarding stairs with a gangway bottom plate (30), said aircraft boarding bridge or said aircraft boarding stairs comprising a bellows (1), more specifically a U-shaped bellows, that spans said gangway bottom plate, wherein the clear height (arrow 50) between the upper edge of the gangway bottom plate (30) and the roof of the bellows (1) may be varied.

    摘要翻译: 本发明的主题是具有舷梯底板(30)的飞机登机桥或飞机登机楼梯,所述飞机登机桥或所述飞机登机楼梯包括波纹管(1),更具体地是跨越的U形波纹管 所述通道底板,其中,所述通道底板(30)的上边缘与波纹管(1)的顶部之间的透明高度(箭头50)可以变化。

    N-alkyl ammonium acetonitrile salts, methods therefor and compositions therewith
    74.
    发明授权
    N-alkyl ammonium acetonitrile salts, methods therefor and compositions therewith 失效
    N-烷基铵乙腈盐,其方法和组合物

    公开(公告)号:US06764613B2

    公开(公告)日:2004-07-20

    申请号:US09849388

    申请日:2001-05-03

    IPC分类号: C09K300

    摘要: Substantially solid compositions are provided having therein a compound with the structure of Formula I wherein A is a saturated ring formed by a plurality of atoms in addition to the N1 atom, the saturated ring atoms including at least one carbon atom and at least one of O, S, and N atoms, the substituent R1 bound to the N1 atom of the Formula I structure including either (a) a C1-24 alkyl or alkoxylated alkyl where the alkoxy is C2-4, (b) a C4-24 cycloalkyl, (c) a C7-24 alkaryl, (d) a repeating or nonrepeating alkoxy or alkoxylated alcohol, where the alkoxy unit is C2-4, or (e) —CR2R3C≡N where R2 and R3 are each H, a C1-24 alkyl, cycloalkyl, or alkaryl, or a repeating or nonrepeating alkoxyl or alkoxylated alcohol where the alkoxy unit is C2-4, the R2 and R3 substituents being each H, a C1-24 alkyl, cycloalkyl, or alkaryl, or a repeating or nonrepeating alkoxyl or alkoxylated alcohol where the alkoxy unit is C2-4, Z is a value in the range of 0 to 10, and wherein Y is monovalent or multivalent and is sulfate, bisulfate, tosylate, or mixtures of sulfate and bisulfate as counterion. These compositions have reduced water uptake due to the Formula I compound.

    摘要翻译: 其中提供了具有式I结构的化合物的基本固体组合物,其中A是除了N1原子之外由多个原子形成的饱和环,饱和环原子包括至少一个碳原子和至少一个O, S和N原子,与式I结构的N1原子结合的取代基R1包括(a)C1-24烷基或烷氧基为烷氧基的烷基,C2烷基,(b)C4-24环烷基,( c)C7-24烷芳基,(d)重复或不重复的烷氧基或烷氧基化醇,其中烷氧基单元是C 2-4,或(e)-CR 2 R 3 C = N,其中R 2和R 3各自为H, ,环烷基或烷芳基,或重复或非重复烷氧基或烷氧基化醇,其中烷氧基单元为C 2-4,R 2和R 3取代基各为H,C 1-4烷基,环烷基或烷芳基,或重复或非重复烷氧基 或烷氧基化醇,其中烷氧基单元为C2-4,Z为0至10的范围内的值,并且其中Y为单价或mu 是硫酸盐,硫酸氢盐,甲苯磺酸盐,或硫酸盐和硫酸氢盐的混合物作为抗衡离子。 这些组合物由于式I化合物而降低了吸水率。

    Process for isolating cyclopentane and/or cyclopentene
    76.
    发明授权
    Process for isolating cyclopentane and/or cyclopentene 失效
    用于分离环戊烷和/或环戊烯的方法

    公开(公告)号:US06468399B2

    公开(公告)日:2002-10-22

    申请号:US09784853

    申请日:2001-02-16

    IPC分类号: B01D300

    摘要: Cyclopentane and/or cyclopentene and, if desired, isopentane can be obtained by distillative separation from a pre-benzene fraction or a C5 fraction which has in each case being partially hydrogenated to remove acetylene compounds and diolefins, wherein a) in a first fractional distillation, low boilers are removed as first top product and, either b1) the first bottom product is fed to a second fractional distillation and there cyclopentene is taken off as second top product and cyclopentane and higher-boiling hydrocarbons are taken off as second bottom product and this second bottom product is separated into cyclopentene and higher boilers in a third fractional distillation, or b2) the first bottom product is subjected to a catalytic hydrogenation and subsequently, in a fractional distillation, separated into cyclopentane as top product and higher boilers as bottom product, or b3) the first bottom product is subjected to a fractional distillation to separate off the relatively high boilers as bottom product and the top product is subjected to a catalytic hydrogenation to form cyclopentene.

    摘要翻译: 如果需要,可以通过蒸馏分离前苯馏分或C5馏分获得环戊烷和/或环戊烯,每个馏分在每种情况下都被部分氢化除去乙炔化合物和二烯烃,其中a)在第一分馏中, 作为第一顶级产品除去低锅炉,并且b)将第一底部产物进料至第二次分馏,并且将环戊烯作为第二顶部产物取出,将环戊烷和较高沸点烃作为第二底部产物取出, 底部产物在第三次分馏中分离成环戊烯和更高级的锅炉,orb2)第一个底部产物进行催化氢化,随后在分馏中分离成环戊烷作为顶部产物,较高的锅炉作为底部产物,orb3) 第一个底部产品进行分馏以分离相对较高的锅炉 作为底部产物,顶部产物进行催化氢化以形成环戊烯。