Stabilizers
    1.
    发明授权
    Stabilizers 失效
    稳定剂

    公开(公告)号:US4680327A

    公开(公告)日:1987-07-14

    申请号:US823744

    申请日:1986-01-29

    CPC分类号: C08K5/1545 C08K5/103

    摘要: Stabilizers consisting of (a) 2,5,7,8-tetramethyl-2-(2'-stearyloxyethyl)-chroman and (b) glyceryl stearate, glyceryl hydroxystearate, partial esters of stearic acid with condensates of glycerol and trimethylolpropane, triglyceryl stearate and/or tetraglyceryl stearate, with or without further conventional additives, the weight ratio of (a) to (b) being from 10:1 to 1:10, give improved stabilization to discoloration and superior stability during processing when used in plastics such as polyethylene or polypropylene.

    摘要翻译: 稳定剂由(a)2,5,7,8-四甲基-2-(2'-硬脂酰氧基乙基) - 苯并二氢吡喃和(b)硬脂酸甘油酯,羟基硬脂酸甘油酯,硬脂酸与甘油和三羟甲基丙烷缩合物的偏酯,硬脂酸甘油三酯 和/或四甘油硬脂酸酯,使用或不含其它常规添加剂时,(a)至(b)的重量比为10:1至1:10,当在塑料中使用时,提供改进的变色稳定性和加工过程中优异的稳定性 聚乙烯或聚丙烯。

    Methods and apparatus for housing gas turbine engines
    4.
    发明申请
    Methods and apparatus for housing gas turbine engines 审中-公开
    燃气轮机发动机的方法和装置

    公开(公告)号:US20070220895A1

    公开(公告)日:2007-09-27

    申请号:US11230247

    申请日:2005-09-19

    申请人: Michael Horner

    发明人: Michael Horner

    IPC分类号: F02C1/00

    CPC分类号: F02C7/24 F01D25/24 F01D25/30

    摘要: A method for housing a gas turbine engine including an inlet portion, an engine portion, and an exhaust portion. The method includes containing at least a portion of the engine portion of the gas turbine engine within a first module, containing at least a portion of one of the inlet portion of the gas turbine engine and the exhaust portion of the gas turbine engine within a second module that is separate from the first module, and removably coupling the second module to the first module.

    摘要翻译: 一种用于容纳包括入口部分,发动机部分和排气部分的燃气涡轮发动机的方法。 该方法包括在第一模块内容纳燃气涡轮发动机的发动机部分的至少一部分,其在第二模块内容纳燃气涡轮发动机的入口部分和燃气涡轮发动机的排气部分中的至少一部分 模块,其与第一模块分离,并且可拆卸地将第二模块耦合到第一模块。

    Chroman-6-ol derivatives useful for stabilizing plastics
    6.
    发明授权
    Chroman-6-ol derivatives useful for stabilizing plastics 失效
    可用于稳定塑料的色甘醇-6-醇衍生物

    公开(公告)号:US4374258A

    公开(公告)日:1983-02-15

    申请号:US343762

    申请日:1982-01-28

    摘要: Novel chroman derivatives ##STR1## where R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each H or C.sub.1 -C.sub.4 -alkyl, R.sup.5 is sec.--C.sub.3 -C.sub.8 --alkyl or tert.--C.sub.4 -C.sub.8 --alkyl, R.sup.6 is H or R.sup.5, m is 1, 2 or 3, and n is 0, 1, 2 or 3, a process for the preparation of these compounds, and their use as stabilizers for plastics.

    摘要翻译: 新的苯并二氢吡喃衍生物其中R 1,R 2,R 3和R 4各自为H或C 1 -C 4 - 烷基,R 5为C 3 -C 8 - 烷基或C 4 -C 8 - 烷基,R 6为H或R 5 ,m为1,2或3,n为0,1,2或3,这些化合物的制备方法及其作为塑料稳定剂的用途。

    Preparation of chromane derivatives
    7.
    发明授权
    Preparation of chromane derivatives 失效
    色烯衍生物的制备

    公开(公告)号:US4268446A

    公开(公告)日:1981-05-19

    申请号:US121170

    申请日:1980-02-13

    CPC分类号: C07D311/66

    摘要: Chromane derivatives (I) ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are H or C.sub.1 -C.sub.8 -alkyl, R.sup.4 is H, C.sub.1 -C.sub.8 -alkyl or C.sub.1 -C.sub.8 -acyl and R.sup.5 is C.sub.1 -C.sub.8 -alkyl are prepared by reacting a hydroquinone (II) ##STR2## with a Lewis acid or a Lewis acid derivative having the same action, and with a nitrile CH.sub.2 .dbd.CH--C(R.sup.5)(OR.sup.6)CN (III), where R.sup.6 is H, C.sub.1 -C.sub.4 -acyl or C.sub.1 -C.sub.4 -alkyl, or with a compound from which III is formed in situ, in the presence of an inert solvent.

    摘要翻译: 色原烷衍生物(I)其中R 1,R 2和R 3是H或C 1 -C 8 - 烷基,R 4是H,C 1 -C 8 - 烷基或C 1 -C 8酰基,R 5是C 1 -C 8 - 烷基是通过 使氢醌(II)II与具有相同作用的路易斯酸或路易斯酸衍生物反应,并与腈CH2 = CH-C(R5)(OR6)CN(III)反应,其中R6为H,C1 -C 1-4酰基或C 1 -C 4 - 烷基,或与惰性溶剂存在下原位形成III的化合物反应。

    Selective hydrogenation of unsaturated carbonyl compounds
    9.
    发明授权
    Selective hydrogenation of unsaturated carbonyl compounds 失效
    不饱和羰基化合物的选择性氢化

    公开(公告)号:US4536347A

    公开(公告)日:1985-08-20

    申请号:US590647

    申请日:1984-03-19

    摘要: Ruthenium-on-charcoal and ruthenium-on-carbon black catalysts, containing from 0.1 to 5% by weight of iron, for the preparation of olefinically unsaturated alcohols by selective hydrogenation of the corresponding .alpha., .beta.-unsaturated carbonyl compounds in the liquid phase are prepared by modifying the catalyst with iron only after it has been impregnated with the ruthenium compound, and reducing the catalyst with hydrogen at from 400.degree. to 600.degree. C., with thorough mixing.The catalysts according to the invention are particularly useful for improving the industrially difficult hydrogenation of citral to give the soughtafter fragrances geraniol and nerol.

    摘要翻译: 含有0.1至5重量%的铁的钌 - 炭和钌 - 炭黑催化剂,用于通过液相中相应的+60,β-不饱和羰基化合物的选择性氢化制备烯属不饱和醇 通过在用钌化合物浸渍之后用铁改性催化剂,并通过充分混合在400℃至600℃下用氢还原催化剂。 根据本发明的催化剂特别可用于改进柠檬醛的工业难加氢以产生松散香料香叶醇和橙花醇。