Process for preparing polytetrahydrofuran and derivatives thereof
    51.
    发明授权
    Process for preparing polytetrahydrofuran and derivatives thereof 失效
    制备聚四氢呋喃及其衍生物的方法

    公开(公告)号:US6111147A

    公开(公告)日:2000-08-29

    申请号:US269210

    申请日:1999-04-01

    CPC分类号: C08G65/20 C08G18/4854

    摘要: Polytetrahydrofuran, copolymers of tetrahydrofuran and 2-butyne-1,4-diol, diesters of these polymers with C.sub.2 -C.sub.20 -monocarboxylic acids or monoesters of these polymers with C.sub.1 -C.sub.10 -monocarboxylic acids are prepared by polymerization of tetrahydrofuran in the presence of one of the telogens water, 1,4-butanediol, 2-butyne-1,4-diol, polytetrahydrofuran having a molecular weight of from 200 to 700 Dalton, a C.sub.1 -C.sub.10 -monocarboxylic acid or an anhydride of a C.sub.2 -C.sub.20 -monocarboxylic acid or a mixture of these telogens over a heterogeneous supported catalyst which comprises a catalytically active amount of an oxygen-containing molybdenum and/or tungsten compound on an oxidic support material and which has been calcined at from 5OO.degree. C. to 1OOO.degree. C. after application of the precursor compounds of the oxygen-containing molybdenum and/or tungsten compounds onto the support material precursor, wherein the catalyst is activated by treatment with a reducing agent before it is used as a polymerization catalyst.

    摘要翻译: PCT No.PCT / EP97 / 05204 Sec。 371日期1999年4月1日 102(e)1999年4月1日PCT PCT 1997年9月23日PCT公布。 第WO98 / 15589号公报 日期:1998年4月16日四氢呋喃,四氢呋喃和2-丁炔-1,4-二醇的共聚物,这些聚合物与C2-C20-一元羧酸的二酯或这些聚合物与C1-C10-一元羧酸的单酯通过四氢呋喃 在其中一种使用水,1,4-丁二醇,2-丁炔-1,4-二醇,分子量为200-700道尔顿的聚四氢呋喃,C1-C10-一元羧酸或 C2-C20-一元羧酸或这些方法的混合物在非均相载体催化剂上的混合物,其包含在氧化载体材料上的催化活性量的含氧钼和/或钨化合物,并且已经在500℃煅烧 将含氧钼和/或钨化合物的前体化合物施加到载体材料前体上之后,至1000℃,其中催化剂在用作还原剂之前通过用还原剂进行活化 聚合催化剂。

    Preparation of polytetrahydrofuran
    54.
    发明授权
    Preparation of polytetrahydrofuran 失效
    聚四氢呋喃的制备

    公开(公告)号:US5641857A

    公开(公告)日:1997-06-24

    申请号:US545753

    申请日:1995-11-07

    摘要: Polytetrahydrofuran or polytetrahydrofuran monoesters of C.sub.1 -C.sub.20 -monocarboxylic acids or polytetrahydrofuran monoethers of monohydric C.sub.1 -C.sub.20 -alcohols, having an average molecular weight of from 250 to 10,000 Dalton and liquid at room temperature, are prepared by the cationic polymerization of tetrahydrofuran in the presence of a telogen by a process in which tetrahydrofuran is polymerized in the presence of water, 1,4-butanediol and/or polytetrahydrofuran having an average molecular weight of from 200 to 700 Dalton and/or of a C.sub.1 -C.sub.20 -monocarboxylic acid and/or of a monohydric C.sub.1 -C.sub.20 -alcohol with the aid of a catalytic amount of a zeolite catalyst which has an SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio of from 4:1 to 100:1 and in which the population ratio P of the acid centers on the external surface of the zeolite to the total number of acid centers of the zeolite is 0.03/l or more.

    摘要翻译: PCT No.PCT / EP94 / 01403 Sec。 371日期:1995年11月7日 102(e)日期1995年11月7日PCT 1994年5月3日PCT公布。 WO92 / 26803 PCT出版物 日期1994年11月24日通过阳离子聚合制备平均分子量为250〜10,000道尔顿且在室温下为液体的C1-C20-一元羧酸或一元一-C 1 -C 20醇的聚四氢呋喃或聚四氢呋喃单酯 的四氢呋喃在四氢呋喃存在下,通过其中四氢呋喃在水存在下聚合的方法,1,4-丁二醇和/或平均分子量为200-700道尔顿的聚四氢呋喃和/或C1-C20 - 一元羧酸和/或一元醇C 1 -C 20醇,借助于催化量的SiO 2 / Al 2 O 3摩尔比为4:1至100:1的沸石催化剂,其中总体比P为 沸石外表面的酸中心与沸石的酸中心总数为0.03 / l以上。

    Device for locking and unlocking closed doors to the interior of a motor
vehicle
    56.
    发明授权
    Device for locking and unlocking closed doors to the interior of a motor vehicle 失效
    用于锁定和解锁闭合门的装置到电动车辆的内部

    公开(公告)号:US5238274A

    公开(公告)日:1993-08-24

    申请号:US838753

    申请日:1992-03-30

    IPC分类号: E05B65/32 E05B65/12 E05B65/20

    摘要: A device is suggested which serves to lock and unlock closed doors of a motor vehicle. The device comprises a lock which is assigned to every door, can be actuated with a key and whose locking element is swivelably supported at the door and whose retainers, which cooperate with the latter, are arranged near the door opening so as to be fixed with respect to the body of the vehicle. The locking element is a structural component part which is spring-loaded relative to the unlocking position and engages behind the pin-like retainers with a hook-shaped projection in its locking position. The locking element has two catches which together enclose an angle with reference to the swivel axis of the locking element, which catches cooperate with counter-catches of a swivelable latch element which are spring-loaded relative to the catch position. To actuate a device constructed in such a way by motor as well, the lock has an actuating element which can be activated by motor, swivels the locking element into its locking position for locking the door and moves the latch element against the spring force for unlocking door and in so doing disengages the catches and counter-catches.

    摘要翻译: PCT No.PCT / DE90 / 00679 Sec。 371日期:1992年3月30日 102(e)1992年3月30日PCT PCT 1990年9月6日PCT公布。 出版物WO91 / 04384 日期1991年4月4日。建议一种用于锁定和解锁机动车辆的封闭门的装置。 该装置包括分配给每个门的锁,可以用钥匙致动,并且其锁定元件可旋转地支撑在门处,并且与其配合的保持器布置在门开口附近以便被固定在 尊重车身。 锁定元件是结构构件部件,其相对于解锁位置是弹簧加载的,并且在其锁定位置上以钩状突起接合在销状保持器的后面。 锁定元件具有两个卡扣,它们一起围绕锁定元件的旋转轴线包围一个角度,锁定元件与相对于卡扣位置弹簧加载的可旋转闩锁元件的反向卡扣配合。 为了致动通过电动机以这种方式构造的装置,锁具有可由电动机启动的致动元件,将锁定元件旋转到其锁定位置以锁定门并且抵抗弹簧力移动闩锁元件以解锁 在这样做的同时,分离捕获物和反捕获物。

    Polymers having terminal halogen atoms
    57.
    发明授权
    Polymers having terminal halogen atoms 失效
    具有末端卤素原子的聚合物

    公开(公告)号:US5166286A

    公开(公告)日:1992-11-24

    申请号:US668355

    申请日:1991-03-11

    IPC分类号: C08F2/38 C08F4/06

    CPC分类号: C08F2/38 C08F4/06

    摘要: Polymers having terminal halogen atoms and consisting of cationically polymerizable, olefinically unsaturated monomers are obtainable by polymerization using an initiator system comprising a halogen-containing Lewis acid and a 3-membered to 8-membered cyclic ether.

    摘要翻译: 具有末端卤素原子并由阳离子可聚合的烯属不饱和单体组成的聚合物可通过使用包含含卤素的路易斯酸和3元至8元环醚的引发剂体系的聚合获得。

    Process for improving the quality of Robusta coffee
    60.
    发明授权
    Process for improving the quality of Robusta coffee 失效
    提高罗布斯塔咖啡质量的过程

    公开(公告)号:US5019413A

    公开(公告)日:1991-05-28

    申请号:US601301

    申请日:1990-10-22

    IPC分类号: A23F5/02 A23F5/04 A23F5/16

    CPC分类号: A23F5/02 A23F5/16

    摘要: The quality of Robusta coffee is increased by treating raw Robusta coffee beans whose water content has been increased to about 30% to 45% with steam at about 135.degree. C. to 140.degree. C. and at a pressure ranging from 3 bar to 4 bar approx. for 60 min to 120 min. This treatment particularly removes the substance responsible for the "earthy" and "musty" aroma note of Robusta coffee, namely the compound 2-methylisoborneol. After the treatment, the beans are processed and roasted in the customary way.

    摘要翻译: 罗布斯塔咖啡的质量通过在约135℃至140℃和约3巴至4巴的压力下处理含水量已增加至约30%至45%的原始罗布斯塔咖啡豆而增加 大约 60分钟至120分钟。 这种处理特别消除了负责罗布斯塔咖啡的“泥土”和“发霉”香气的物质,即化合物2-甲基异山梨醇。 处理后,豆类以常规方式加工和烘烤。