Production process of cyclohexenyl ketones
    32.
    发明授权
    Production process of cyclohexenyl ketones 失效
    环己烯酮的生产工艺

    公开(公告)号:US06822121B2

    公开(公告)日:2004-11-23

    申请号:US09875158

    申请日:2001-06-07

    IPC分类号: C07C4567

    摘要: An economical process for producing (2- and/or 1-)cyclohexenyl methyl ketones which are intermediates for the synthesis of &agr;- or &bgr;-damascone. In the presence of a catalyst, a 3-cyclohexenyl methyl ketone represented by the following formula (1a): wherein, R1, R2 and R3 each independently represents a hydrogen atom or a methyl group and at least two of R1, R2 and R3 are methyl groups, is isomerized.

    摘要翻译: 用于生产(2-和/或1-)环己烯基甲基酮的经济方法,其是用于合成α-大脑皮质或大黄酮的中间体。 在催化剂存在下,由下式(1a)表示的3-环己烯基甲基酮:其中,R 1,R 2和R 3各自独立地表示氢原子或甲基,R 1,R 2和R 3中的至少两个为 甲基,异构化。

    Aromatic bleaching agent composition
    34.
    发明授权
    Aromatic bleaching agent composition 失效
    芳香族漂白剂组合物

    公开(公告)号:US06645254B1

    公开(公告)日:2003-11-11

    申请号:US09816347

    申请日:2001-03-26

    IPC分类号: D06L300

    摘要: One or more 1-substituted-2,2,4-trimethylpentane-3-one derivatives represented by the following general formula (1): wherein X represents a benzene ring or a cyclohexane ring; and R represents an arbitrary hydrogen atom on the benzene ring or cyclohexane ring or a methyl group which substitutes the hydrogen atom are incorporated in a bleaching agent composition containing a chlorine-based bleaching agent component such as sodium hypochlorite or oxygen-based bleaching agent component such as sodium perborate.

    摘要翻译: 一种或多种由以下通式(1)表示的1-取代-2,2,4-三甲基戊烷-3-酮衍生物:其中X表示苯环或环己烷环; R表示苯环或环己烷环上的任意的氢原子或取代氢原子的甲基,可以含有氯代漂白剂成分如次氯酸钠或氧基漂白剂成分的漂白剂组合物, 作为过硼酸钠。

    Process for producing 3-1-menthoxypropane-1,2-diol
    35.
    发明授权
    Process for producing 3-1-menthoxypropane-1,2-diol 有权
    制备3-1-薄荷氧基丙-1,2-二醇的方法

    公开(公告)号:US06407293B1

    公开(公告)日:2002-06-18

    申请号:US09962122

    申请日:2001-09-26

    IPC分类号: C07C3512

    CPC分类号: C07C43/196 C07C41/03

    摘要: A process for producing highly pure 3-1-menthoxypropane-1,2-diol safely and efficiently, and an intermediate to be used in the process. 3-1-menthoxypropane-1,2-diol represented by the chemical formula (IV) is produced by adding 1-menthol to a 1,2-epoxy-3-halogenopropane represented by the following general formula (I) (wherein X represents a halogen atom) in an organic solvent in the presence of a Lewis acid to produce a novel 1-halogeno-3-1-menthoxypropan-2-ol represented by the following general formula (II), then, epoxidating it with a base in the presence of a phase transfer catalyst to produce a 1,2-epoxy-3-1-menthoxypropane represented by the chemical formula (III), and further hydrolyzing it.

    摘要翻译: 安全有效地生产高纯度3-1-薄荷氧基丙二醇-1,2-二醇的方法,以及该方法中使用的中间体。 由化学式(IV)表示的3-1-薄荷氧基丙烷-1,2-二醇通过将1-薄荷醇加入到由下列通式(I)表示的1,2-环氧-3-氯代丙烷中(其中X表示 卤素原子)在有机溶剂中在路易斯酸存在下反应,得到由以下通式(II)表示的新型1-卤代-3-三氟甲氧基丙-2-醇,然后用碱进行环氧化 存在相转移催化剂以制备由化学式(III)表示的1,2-环氧-3-丁氧基丙烷,并进一步水解。

    Ferroelectric liquid crystal optical device with viscosity not more than
30000 cps
    38.
    发明授权
    Ferroelectric liquid crystal optical device with viscosity not more than 30000 cps 失效
    铁电液晶光学器件,粘度不大于30000cps

    公开(公告)号:US5196955A

    公开(公告)日:1993-03-23

    申请号:US703097

    申请日:1991-05-22

    IPC分类号: G02F1/13

    CPC分类号: G02F1/13

    摘要: An improved liquid crystal optical device utilizing a ferroelectric liquid crystal and a driving method for the same are described. A ferroelectric liquid crystal material disposed between a pair of substrates in the optical device has a coefficient of viscosity of 5000 cps to 30000 cps and a negative dielectric anisotropy at operational temperatures, e.g. between 10.degree. C. and 40.degree. C. The liquid crystal consists of a number of layers normal to the substrates. The constituent layer in turn consists of liquid crystal molecules parallel to the substrates. Misalignment of the molecules yields bends in the layered structure which degrades the contrast ratio. When given alternating electric fields, the molecules are subjected to an electric torque which exerts thereon in order to force the molecules parallel to the substrate by virtue of the negative dielectric anisotropy so that the bends can be removed.

    摘要翻译: 描述了利用铁电液晶的改进的液晶光学装置及其驱动方法。 设置在光学器件中的一对基板之间的铁电液晶材料具有5000cps至30000cps的粘度系数和在操作温度下的负介电各向异性,例如, 在10℃和40℃之间。液晶由与基底垂直的多个层组成。 构成层又由平行于衬底的液晶分子组成。 分子的不对准产生了分层结构中的弯曲,这降低了对比度。 当给定交变电场时,分子受到施加在其上的电转矩,以便通过负介电各向异性强迫分子平行于衬底,从而可以去除弯曲。

    Clear aqueous ceramide composition
    39.
    发明授权
    Clear aqueous ceramide composition 有权
    透明水性神经酰胺组合物

    公开(公告)号:US08313755B2

    公开(公告)日:2012-11-20

    申请号:US09848225

    申请日:2001-05-04

    IPC分类号: A61K8/02 A01N37/12

    摘要: Provided is a clear aqueous ceramide composition comprising 1.0 to 5.0% by weight, based on the total composition, of a ceramide represented by formula (I): wherein R1 represents a hydrocarbon group having 9 to 17 carbon atoms; and R2 represents an acyl group having 2 to 30 carbon atoms which can contain a hydroxyl group, a long-chain fatty acid having 12 to 24 carbon atoms, a nonionic surface active agent, and water. The clear aqueous composition is useful as cosmetics, bath agents, hair-care products, external preparations for the skin, skin protective preparations, particularly medical external preparations for the treatment or protection of the skin, or a component making up these preparations.

    摘要翻译: 本发明提供一种透明含水神经酰胺组合物,其包含基于总组合物1.0至5.0重量%的由式(I)表示的神经酰胺:其中R 1表示具有9至17个碳原子的烃基; R2表示可含有羟基的碳原子数2〜30的酰基,碳原子数12〜24的长链脂肪酸,非离子表面活性剂,水。 透明水性组合物可用作化妆品,浴剂,护发产品,皮肤外用剂,皮肤保护制剂,特别是用于治疗或保护皮肤的医用外用制剂,或构成这些制剂的组分。