READILY WATER-SOLUBLE MYRICITRIN COMPOSITION
    1.
    发明申请
    READILY WATER-SOLUBLE MYRICITRIN COMPOSITION 审中-公开
    易溶于水的马来西亚组合物

    公开(公告)号:US20120015090A1

    公开(公告)日:2012-01-19

    申请号:US13258531

    申请日:2010-03-24

    IPC分类号: C11B5/00

    摘要: Disclosed is a method for improving the solubility of myricitrin in water. Also disclosed is a readily water-soluble myricitrin composition which has improved solubility in water due to the method. Specifically disclosed is a method for preparing a myricitrin inclusion product, which comprises including myricitrin in γ-cyclodextrin in the proportion of 1 to 7 mol of γ-cyclodextrin to 1 mol of myricitrin.

    摘要翻译: 本发明公开了一种提高黄曲霉毒素在水中的溶解度的方法。 还公开了由于该方法而具有改善的在水中的溶解度的易溶于水的黄曲霉组合物。 具体公开了一种制备芒硝素包合物的方法,其包括在γ-环糊精中含有1〜7摩尔γ-环糊精与1摩尔苦楝子酮的比例的杨梅宁。

    Process for producing hydrogenation product of ring-opening polymer
    4.
    发明授权
    Process for producing hydrogenation product of ring-opening polymer 失效
    制备开环聚合物加氢产物的方法

    公开(公告)号:US5202388A

    公开(公告)日:1993-04-13

    申请号:US800231

    申请日:1991-11-29

    IPC分类号: C08F8/04 C08G61/08

    CPC分类号: C08G61/08

    摘要: A process for producing a hydrogenation product of ring-opening polymer by hydrogenating, in the presence of a hydrogenation catalyst, the non-aromatic carbon-to-carbon double bond present in a ring-opening polymer obtained by subjecting to ring-opening polymerization at least one norbornene derivative represented by general formula (I): ##STR1## wherein A and B independently represent hydrogen atoms or hydrocarbon groups having 1-10 carbon atoms, X and Y independently represent hydrogen atoms, halogen atoms or monovalent organic groups, and m is 0 or 1, alone or in combination with a monomer copolymerizable with said norbronene derivative, characterized by using, as the hydrogenation catalyst, a ruthenium compound represented by general formula (II):RuH.sub.k Q.sub.n T.sub.p Z.sub.q (11)wherein Q represents a halogen atom, T represents at least one atomic group selected from the group consisting of CO, NO and CH.sub.3 COCH.sub.2 COCH.sub.3, Z represents PR.sup.1 R.sup.2 R.sup.3 (R.sup.1, R.sub.2 and R.sup.3 independently represent alkyl groups, alkenyl groups or phenyl groups), k is 1 or 2, n is 0, 1 or 2, p is 1 or 2, and q is 2 or 3. This process enables hydrogenation with a small amount of a hydrogenation catalyst in a very high hydrogenation degree even when the polymer to be hydrogenated is a ring-opening polymer of a specific tetracyclodeodecene compound, and enables the hydrogenation reaction to be carried out easily.

    摘要翻译: 一种开环聚合物的氢化产物的制备方法,在氢化催化剂的存在下,通过在通式(I)中进行开环聚合得到的开环聚合物中存在的非芳族碳 - 碳双键氢化, 由通式(I)表示的至少一种降冰片烯衍生物:其中A和B独立地表示氢原子或具有1-10个碳原子的烃基,X和Y独立地表示氢原子,卤素原子或一价有机基团 ,并且m为0或1,单独或与可与所述降冰片烯衍生物共聚的单体组合,其特征在于使用由通式(II)表示的钌化合物作为氢化催化剂:RuHkQnTpZq(11)其中Q表示卤素 原子,T表示选自CO,NO和CH 3 COCH 2 COCH 3中的至少一个原子团,Z表示PR1R2R3(R1,R2和R3独立地表示烷基,烯烃 基团或苯基),k为1或2,n为0,1或2,p为1或2,q为2或3.该方法可使用少量氢化催化剂进行非常高的氢化 氢化程度即使待氢化的聚合物是特定四环十二碳烯化合物的开环聚合物,并且能够容易地进行氢化反应。

    Process for producing tetrahydrofuran and 1,4-butanediol
    5.
    发明授权
    Process for producing tetrahydrofuran and 1,4-butanediol 失效
    生产四氢呋喃和1,4-丁二醇的方法

    公开(公告)号:US4268447A

    公开(公告)日:1981-05-19

    申请号:US102658

    申请日:1979-12-12

    摘要: A process for producing simultaneously tetrahydrofuran and 1,4-butanediol in any desired proportion which comprises (a) reacting the acetic ester of 1,4-butanediol with a theoretical or smaller quantity, based on said acetic ester, of water (preferably 0.2-0.8 mole of water per mole of said acetic ester) in the presence of an acidic catalyst, (b) distilling, in the first distillation column, the reaction mixture to separate it into a distillate comprising tetrahydrofuran as major constituent and a bottom stream comprising as major constituent the acetic ester of 1,4-butanediol and (c) subjecting, in the second reaction-distillation column, at least a part of said bottom stream to a counter-current gas-liquid contact reaction with methanol, the quantity of said methanol being preferably 1-5 moles per mole of the acetate group of the acetic ester, in the presence of an acidic or basic catalyst and, simultaneously therewith, separating the reaction mixture into a bottom stream comprising 1,4-butanediol as major constituent and a distillate comprising methyl acetate as major constituent. By this process, methanol and catalyst can be economized to a great extent.

    摘要翻译: 一种以任何所需比例同时生产四氢呋喃和1,4-丁二醇的方法,其包括(a)使基于所述乙酸酯的理论或更少量的1,4-丁二醇的乙酸酯与水反应(优选0.2- 在酸性催化剂存在下,将0.8摩尔水/摩尔的所述乙酸酯),(b)在第一蒸馏塔中蒸馏反应混合物以将其分离成包含四氢呋喃作为主要成分的馏出物和含有 主要成分是1,4-丁二醇的乙酸酯和(c)在第二反应 - 蒸馏塔中使至少一部分所述底部流与甲醇进行逆流气液接触反应,所述量 在酸性或碱性催化剂的存在下,每摩尔乙酸酯的乙酸酯基团,甲醇优选为1-5摩尔,同时将反应混合物分离成包含 主要成分为1,4-丁二醇,乙酸甲酯为主要成分的馏出物。 通过这个过程,甲醇和催化剂可以在很大程度上节约。

    Process for producing an alkylglycoside
    7.
    发明授权
    Process for producing an alkylglycoside 失效
    制备烷基糖苷的方法

    公开(公告)号:US5886161A

    公开(公告)日:1999-03-23

    申请号:US83110

    申请日:1998-05-22

    CPC分类号: C07H15/04

    摘要: The process for producing an alkylglycoside, wherein the amount of coarse sugar particles in alkylglycoside can be reduced without reducing reaction yield, is provided.The process for producing an alkylglycoside comprises,a) mixing a hydrated solid sugar with a higher alcohol;b) dehydrating the mixture at a reduced pressure at a temperature of lower than a melting point of the hydrated solid sugar until a water content of the solid sugar becomes not more than 0.5% by weight;c) heating the mixture to 90.degree.-140.degree. C. so that the proportion of particles having a particle diameter of 0.3 mm or more may be not more than 0.1% by weight of the solid sugar in the mixture at the end of this step;d) reacting the mixture with an acid catalyst added thereto at a temperature of 90.degree.-140.degree. C. at a pressure of 5-100 mmHg; ande) neutralizing the acid catalyst contained in the product mixture with an alkali after the reaction has been completed.

    摘要翻译: 提供了制备烷基糖苷的方法,其中可以在不降低反应产率的情况下降低烷基糖苷中的粗糖颗粒的量。 制备烷基糖苷的方法包括:a)将水合固体糖与高级醇混合; b)在低于水合固体糖的熔点的温度下在减压下使混合物脱水,直到固体糖的含水量不超过0.5重量%; c)将混合物加热至90-140℃,使得粒径在0.3mm以上的颗粒的比例可以在该步骤结束时在混合物中固体糖的重量比不超过0.1% ; d)使混合物与加入其中的酸催化剂在90-140℃的温度下在5-100mmHg的压力下反应; 和e)在反应完成后用碱中和产物混合物中所含的酸催化剂。

    Stable disc unit having reduced thickness
    9.
    发明授权
    Stable disc unit having reduced thickness 失效
    具有减小厚度的稳定盘单元

    公开(公告)号:US5128818A

    公开(公告)日:1992-07-07

    申请号:US466010

    申请日:1990-01-16

    摘要: A disc drive unit for rotating a data storage disc such as an optical disc or a magnetic disc comprising a turntable for supporting and rotating the disc, and a motor for rotating the turntable. The turntable also functions as a rotor of the motor. At least one driving magnet is mounted on the turntable in opposing relationship with at least one coil of the motor. At least one attraction magnet for securely holding the disc in position on the turntable is securely mounted thereon. One yoke functions as yokes, each of which must be provided for each of two kinds of magnets. When the turntable is made of a plastic, at least one attraction magnet and/or at least one driving magnet is defined by partially magnetizing the turntable at at least one predetermined region thereof. The turntable is securely attached to the bearings so that it rotates about a shaft having one end securely fixed to a stationary portion of the motor. When rotating the disc, one of the bearings is used as a member for securely holding the disc in position on the turntable.

    摘要翻译: 用于旋转诸如光盘或磁盘的数据存储盘的盘驱动单元,包括用于支撑和旋转盘的转盘和用于旋转转台的电动机。 转台也用作电机的转子。 至少一个驱动磁体以与电机的至少一个线圈相对的关系安装在转台上。 用于将盘牢固地保持在转台上的适当位置的至少一个吸引磁体牢固地安装在转台上。 一个磁轭用作磁轭,每个磁轭必须为两种磁体中的每一种提供。 当转盘由塑料制成时,至少一个吸引磁体和/或至少一个驱动磁体是通过在其至少一个预定区域部分磁化转台来限定的。 转盘牢固地连接到轴承上,使得其绕一轴旋转,该轴具有一端牢固地固定在马达的静止部分上。 当旋转盘时,其中一个轴承用作用于将盘牢固地保持在转盘上的适当位置的构件。

    Diluent for UV and EB curable resins
    10.
    发明授权
    Diluent for UV and EB curable resins 失效
    稀释剂用于UV和EB可固化树脂

    公开(公告)号:US4886840A

    公开(公告)日:1989-12-12

    申请号:US360

    申请日:1987-01-05

    CPC分类号: G03F7/027

    摘要: Acryloylmorpholine and/or methacryloylmorpholine useful as a reactive diluent for UV and EB curable resin compositions, which has low skin irritation, a little odor, low volatility, low weight loss and high workability and which provides, without imparing work environment, UV and EB curable compositions having a high curing rate and capable of forming films of high hardness with small deformation.

    摘要翻译: 丙烯酰吗啉和/或甲基丙烯酰吗啉可用作UV和EB可固化树脂组合物的反应性稀释剂,其具有低皮肤刺激性,少量气味,低挥发性,低重量损失和高加工性,并且在不影响工作环境的情况下提供UV和EB可固化 具有高固化速度并且能够形成具有小变形的高硬度的薄膜的组合物。