Essential oil
    2.
    发明授权
    Essential oil 失效
    香精油

    公开(公告)号:US5510325A

    公开(公告)日:1996-04-23

    申请号:US400489

    申请日:1995-03-08

    IPC分类号: C11B9/02 A61K7/46

    CPC分类号: C11B9/022

    摘要: A process for the preparation of hypoallergenic moss oils, comprising reacting the starting moss oil, a concrete or preferably an absolute thereof, with an aldehyde reducing agent, in an organic solvent medium.

    摘要翻译: 一种制备低变应原性苔藓油的方法,包括在有机溶剂介质中使起始苔藓油,混凝土或优选绝对的与醛还原剂反应。

    Liquid crystal mixture
    3.
    发明授权
    Liquid crystal mixture 失效
    液晶混合物

    公开(公告)号:US4783280A

    公开(公告)日:1988-11-08

    申请号:US53601

    申请日:1987-05-20

    CPC分类号: C09K19/42 C09K19/02

    摘要: There is described a liquid crystalline mixture for electro-optical devices which are operated according to the two-frequency matrix addressing procedure. The mixture consists of three components A, B and C, each of which contains one or more compounds. Component A has a viscosity of at most about 40 cp, a clearing point of at least about 40.degree. C. and a dielectric anisotropy between about -2 and about +1. Component B has a dielectric anisotropy below about -2 both above and below the cross-over frequency of the total mixture and component C has a dielectric anisotropy above about +10, a clearing point of at least about 100.degree. C. and there is a cross-over frequency in the total mixture of at most about 15 kHz at 20.degree. C. Novel compounds for such mixtures and their manufacture and use are also described. The novel mixtures make possible especially high multiplex rates and short response times.

    摘要翻译: 描述了根据双频矩阵寻址过程操作的用于电光器件的液晶混合物。 该混合物由三种组分A,B和C组成,每种组分含有一种或多种化合物。 组分A具有至多约40cp的粘度,至少约40℃的透明点和约-2至约+1的介电各向异性。 组分B在总混合物的交叉频率之上和之下具有低于约-2的介电各向异性,组分C具有高于约+ 10的介电各向异性,至少约100℃的透明点,并且存在 在20℃下最多约15kHz的总混合物中的交叉频率也用于这种混合物的新型化合物及其制备和用途。 这种新型混合物使得多种复合速率和响应时间短。

    Liquid crystal mixture
    4.
    发明授权
    Liquid crystal mixture 失效
    液晶混合物

    公开(公告)号:US4460770A

    公开(公告)日:1984-07-17

    申请号:US387108

    申请日:1982-06-10

    CPC分类号: C09K19/42 C09K19/02

    摘要: There is described a liquid crystalline mixture for electro-optical devices which are operated according to the two-frequency matrix addressing procedure. The mixture consists of three components A, B and C, each of which contains one or more compounds. Component A has a viscosity of at most about 40 cp, a clearing point of at least about 40.degree. C. and a dielectric anisotropy between about -2 and about +1. Component B has a dielectric anisotropy below about -2 and component C has a dielectric anisotropy above about +10, a clearing point of at least about 100.degree. C. and there is a cross-over frequency in the total mixture of at most about 15 kHz at 20.degree. C.Novel compounds for such mixtures and their manufacture and use are also described.The novel mixtures make possible especially high multiplex rates and short response times.

    摘要翻译: 描述了根据双频矩阵寻址过程操作的用于电光器件的液晶混合物。 该混合物由三种组分A,B和C组成,每种组分含有一种或多种化合物。 组分A具有至多约40cp的粘度,至少约40℃的透明点和约-2至约+1的介电各向异性。 组分B具有低于约-2的介电各向异性,组分C具有高于约+ 10的介电各向异性,至少约100℃的透明点,并且总混合物中的交叉频率最多为约15 在20℃下,还描述了用于这种混合物的新型化合物及其制备和用途。 这种新型混合物使得多种复合速率和响应时间短。

    Liquid crystalline compounds and mixtures
    7.
    发明授权
    Liquid crystalline compounds and mixtures 失效
    液晶化合物和混合物

    公开(公告)号:US4652089A

    公开(公告)日:1987-03-24

    申请号:US663652

    申请日:1984-10-22

    摘要: This invention concerns compounds of the formula: ##STR1## wherein n is 1 and X is --COO--, --OOC-- or --CH.sub.2 CH.sub.2 --; or n is O and X is --CH.sub.2 CH.sub.2 --;ring A is p-phenylene or trans-1,4-cyclohexylene;R.sup.2 is cyano, p-cyanophenyl or, when X is --COO-- or --OOC--, R.sup.2 may also be p-R.sup.3 -phenyl or trans-4-R.sup.3 -cyclohexyl;and R.sup.1 and R.sup.3 each are straight-chain C.sub.1 -C.sub.10 -alkyl.their manufacture and their use for electro-optical purposes and in gas chromatography are described.

    摘要翻译: 本发明涉及下式的化合物:其中n为1且X为-COO-,-OOC-或-CH 2 CH 2 - ; 或n为O且X为-CH 2 CH 2 - ; 环A为对亚苯基或反式-1,4-亚环己基; R2是氰基,对​​氰基苯基,或当X是-COO-或-OOC-时,R 2也可以是对-R 3 - 苯基或反式-4-R 3 - 环己基; 并且R 1和R 3各自是直链C 1 -C 10 - 烷基。 描述了它们的制造及其在电光学目的和气相色谱中的用途。

    Cyclohexanecarbonitriles
    8.
    发明授权
    Cyclohexanecarbonitriles 失效
    环己烷腈

    公开(公告)号:US4629581A

    公开(公告)日:1986-12-16

    申请号:US749160

    申请日:1985-06-26

    摘要: Compounds of the formula ##STR1## wherein R.sup.1 is hydrogen or straight-chain alkyl; R.sup.2 is --CN, --R, --COR, --COOR or when R.sup.2 is positioned on an aromatic ring R.sup.2 also can be --OR, --OOCR or --F; R is alkyl; A is a group with 1 to 4 six-membered rings, these rings being linked directly with one another and with ring B in each case via a single covalent bond or being linked at one or two positions also via --COO--, --OOC-- or --CH.sub.2 CH.sub.2 --; the six-membered rings in A and ring B each are 1,4-phenylene or trans-1,4-cyclohexylene or one of these rings also is trans-2,5-disubstituted m-dioxane, 2,5-disubstituted pyrimidine or 3,6-disubstituted pyridazine, with the proviso that a maximum of two adjacent trans-1,4-cyclohexylene rings are linked directly via a single covalent bond; and m is the integer 2, or when ring B is trans-1,4-cyclohexylene or trans-2,5-disubstituted m-dioxane, m also can be the integer 0,their manufacture, liquid crystalline mixtures which contain these compounds as well as the use of these compounds for electro-optical purposes are described.Additionally, compounds of the formula ##STR2## wherein R.sup.8 is straight-chain C.sub.1 -C.sub.12 alkyl, their manufacture, liquid crystalline mixtures which contain these compounds and their use for electro-optical purposes are described.

    摘要翻译: 式Ⅰ的化合物,其中R 1是氢或直链烷基; R2是-CN,-R,-COR,-COOR或当R2位于芳环R2时也可以是-OR,-OOCR或-F; R是烷基; A是具有1至4个六元环的基团,这些环彼此直接连接,并且在每种情况下通过单个共价键连接,或者也可以通过-COO - , - OOC- 或-CH 2 CH 2 - ; A和环B中的六元环各自为1,4-亚苯基或反式-1,4-亚环己基,或者这些环中的一个也是反式-2,5-二取代的间二氧杂环己烷,2,5-二取代的嘧啶或 3,6-二取代哒嗪,条件是最多两个相邻的反式-1,4-亚环己基环通过单个共价键直接相连; 并且m是整数2,或者当环B是反式-1,4-亚环己基或反式-2,5-二取代的间二恶烷时,m也可以是整数0,它们的制造,含有这些化合物的液晶混合物为 以及这些化合物用于电光目的的描述。 另外,还描述了其中R8是直链C1-C12烷基的式“IMAGE”LXXVIII的化合物,它们的制备,含有这些化合物的液晶混合物及其用于电光学目的的用途。

    Phenylethanes
    9.
    发明授权
    Phenylethanes 失效
    苯乙烷

    公开(公告)号:US4583826A

    公开(公告)日:1986-04-22

    申请号:US432212

    申请日:1982-10-01

    摘要: Compounds of the formula ##STR1## wherein R.sup.1 signifies trans-4-alkylcyclohexyl, 4'-alkyl-4-biphenylyl, p-(trans-4-alkylcyclohexyl)phenyl, 2-(trans-4-alkylcyclohexyl)ethyl or p-[2-(trans-4-alkylcyclohexyl)ethyl]phenyl and R.sup.2 signifies trans-4-alkylcyclohexyl; or R.sup.1 signifies trans-4-alkylcyclohexyl and R.sup.2 signifies p-(trans-4-alkylcyclohexyl)phenyl, p-[2-(trans-4-alkylcyclohexyl)ethyl]phenyl or 4'-(trans-4-alkylcyclohexyl)-4-biphenylyl; or R.sup.1 signifies p-alkylphenyl and R.sup.2 signifies p-[2-(trans-4-alkylcyclohexyl)ethyl]phenyl, and the alkyl groups in the substituents R.sup.1 and R.sup.2 are straight-chain groups containing 1 to 7 carbon atoms, liquid crystalline mixtures which contain these compounds and their use for electro-optical purposes are described.The novel compounds of formula I are especially valuable as components in liquid crystal mixtures and themselves have liquid crystalline properties.

    摘要翻译: 其中R 1表示反式-4-烷基环己基,4'-烷基-4-联苯基,对 - (反-4-烷基环己基)苯基,2-(反式-4-烷基环己基)乙基或对 - [2-(反-4-烷基环己基)乙基]苯基,R 2表示反式-4-烷基环己基; 或R 1表示反式-4-烷基环己基,R 2表示对 - (反-4-烷基环己基)苯基,对 - [2-(反式-4-烷基环己基)乙基]苯基或4' - (反式-4-烷基环己基)-4 联苯基; 或R1表示对烷基苯基,R2表示对 - [2-(反-4-烷基环己基)乙基]苯基,取代基R 1和R 2中的烷基是含有1至7个碳原子的直链基团,液晶混合物 其中包含这些化合物及其用于电光学目的的用途。 式I的新型化合物作为液晶混合物中的组分本身具有液晶性质是特别有价值的。