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10 条记录 (耗时 0.019 秒)

    Dust protective member for bicycle freewheel assembly
    7.
    发明授权
    Dust protective member for bicycle freewheel assembly 失效
    用于自行车自由轮组装的防尘构件

    公开(公告)号：US4732051A

    公开(公告)日：1988-03-22

    申请号：US832886

    申请日：1986-02-26

    申请人： Nobuo Ozaki ,  Mamoru Nakai

    发明人： Nobuo Ozaki ,  Mamoru Nakai

    IPC分类号： B62M9/10 ,  F16C33/80 ,  F16D41/24 ,  G05G1/08 ,  G05G1/14

    CPC分类号： F16C33/80 ,  B62M9/10 ,  F16D41/24 ,  Y10T74/2164 ,  Y10T74/2168

    摘要： A bicycle freewheel assembly comprising a hollow external body relatively rotatable with and radially spaced apart from a hollow internal body, a first dust protective member including a horizontal tubular body and an annular vertical flange and secured to the alternative of the internal body or the external body at one side of the the freewheel assembly, a second dust protective member including a horizontal tubular body and an annular vertical flange and secured to the alternative of the external body or a lock nut mounted on the internal body at the other side of the freewheel assembly, a first narrow clearance formed between the first dust protective member and the alternative of the internal body or the external body at the one side of the freewheel assembly, a second narrow clearance formed between the second dust protective member and the alternative of the external body or the lock nut at the other side of the freewheel assembly, and each of the first and the second clearances being L-shaped or hook-shaped to minimize undesirable intrusion of dust and/or rain into the inside of the freewheel assembly.

    摘要翻译： 一种自行车飞轮组件，包括与中空内部相对旋转并且与其径向隔开的中空外部主体，包括水平管状体和环形垂直凸缘的第一防尘构件，并固定到内部主体或外部主体的替代物 在所述自由轮组件的一侧，包括水平管状体和环形垂直凸缘并固定到所述外部主体的替代物的第二防尘构件或在所述自由轮组件的另一侧安装在所述内部主体上的锁定螺母 形成在第一灰尘保护构件和在该自由轮组件的一侧的内部主体或外部主体的替代物之间的第一窄间隙，形成在第二防尘构件和外部主体的替代物之间的第二窄间隙 或在飞轮组件的另一侧的锁定螺母，以及第一和第二间隙中的每一个 L形或钩形，以最大限度地减少不必要的灰尘和/或雨侵入到飞轮组件的内部。

    Process for producing phenylacetones
    8.
    发明授权
    Process for producing phenylacetones 失效
    苯丙酮生产工艺

    公开(公告)号：US4638094A

    公开(公告)日：1987-01-20

    申请号：US518691

    申请日：1983-07-29

    申请人： Mamoru Nakai ,  Takuji Enomiya

    发明人： Mamoru Nakai ,  Takuji Enomiya

    IPC分类号： C07C43/303 ,  C07C43/315 ,  C07C45/28 ,  C07C45/51 ,  C07C49/213 ,  C07C49/245 ,  C07C49/255 ,  C07C205/37 ,  C07D317/54 ,  C07C45/00

    CPC分类号： C07D317/54 ,  C07C201/12 ,  C07C221/00 ,  C07C43/303 ,  C07C43/315 ,  C07C45/28 ,  C07C45/515 ,  C07C49/213 ,  C07C49/245 ,  C07C49/255

    摘要： A phenylacetone or its derivative having the general formula (I): ##STR1## wherein X, Y, and Z are independently a hydrogen atom, a hydroxyl group, a halogen atom, a nitro group, an amino group, a lower alkyl group having 1 to 6 carbon atoms, a lower alkoxy group having 1 to 6 carbon atoms, or a benzyloxy group and any two substituents of X, Y, and Z may form, together with the benzene ring, a heterocycling ring having 5 to 7 members including 1 or 2 oxygen atoms is produced at a high yield and a high selectivity by reacting a 3-phenylpropylene or its derivative having the general formula (II): ##STR2## wherein X, Y, and Z are as defined above, with an alkyl nitrite having the general formula (III):RONO (III)wherein R is an aliphatic, aromatic, or alicyclic saturated or unsaturated hydrocarbon group in the presence of (a) water, (b) an alcohol, (c) a palladium catalyst, and (d) an optional amine or copper compound, or by reacting the above-mentioned 3-phenylpropylene or its derivative with the above-mentioned alkyl nitrite in the presence of (a) an alcohol, (b) a palladium catalyst and (c) an optional amine or copper compound to form 1-phenyl-2,2-dialkoxypropane or it derivative having the general formula (IV): ##STR3## wherein X, Y, Z and R are as defined above, followed by hydrolyzing the reaction product.

    摘要翻译： 具有通式（I）的苯丙酮或其衍生物：其中X，Y和Z独立地为氢原子，羟基，卤素原子，硝基，氨基，低级 具有1至6个碳原子的烷基，具有1至6个碳原子的低级烷氧基或苄氧基以及X，Y和Z的任意两个取代基可以与苯环一起形成具有5至 通过使具有通式（II）的3-苯基丙烯或其衍生物：其中X，Y和Z作为（II），其中X，Y和Z如上所定义的3-苯基丙烯或其衍生物，以高产率和高选择性产生包含1或2个氧原子的7个成员 具有通式（III）的亚硝酸烷基酯：RONO（III）其中R是脂族，芳族或脂环族饱和或不饱和烃基，在（a）水，（b）醇，（ c）钯催化剂，和（d）任选的胺或铜化合物，或通过使上述3-苯基丙烯或其衍生物 在（a）醇，（b）钯催化剂和（c）任选的胺或铜化合物的存在下，使用上述烷基亚硝酸酯形成1-苯基-2,2-二烷氧基丙烷或其衍生物，其具有 通式（IV）：其中X，Y，Z和R如上定义，然后水解反应产物。

    Process for the preparation of urea derivatives
    9.
    发明授权
    Process for the preparation of urea derivatives 失效
    尿素衍生物的制备方法

    公开(公告)号：US4514571A

    公开(公告)日：1985-04-30

    申请号：US496179

    申请日：1983-05-19

    申请人： Mamoru Nakai ,  Fumio Iwata ,  Teruhiko Inoue

    发明人： Mamoru Nakai ,  Fumio Iwata ,  Teruhiko Inoue

    IPC分类号： C07C67/00 ,  C07C239/00 ,  C07C273/02 ,  C07C275/06 ,  C07C275/26 ,  C07C275/28 ,  C07D213/75 ,  C07D261/14 ,  C07B29/00 ,  C07C126/00 ,  C07D213/89 ,  C07D263/48

    CPC分类号： C07D213/75 ,  C07C275/06 ,  C07C275/28 ,  C07D261/14

    摘要： A process for the preparation of a urea derivative having the formula: ##STR1## in which A represents a straight- or branched-chain alkyl group having 1-20 carbon atoms, an aryl group, or a heterocyclic group, and each of R.sup.1 and R.sup.2 represents hydrogen, a straight- or branched-chain alkyl group having 1-20 carbon atoms, an alicyclic group, or an aryl groups, which comprises:reacting sodium salt of an N-halogenamide with a quaternary ammonium salt to obtain its addition salt and then,reacting said addition salt with an amine derivative in the absence or presence of an organic solvent.

    摘要翻译： 一种制备具有下式的脲衍生物的方法：其中A表示具有1-20个碳原子的直链或支链烷基，芳基或杂环基，R1和 R2表示氢，具有1-20个碳原子的直链或支链烷基，脂环基或芳基，其包括：使N-卤代酰胺的钠盐与季铵盐反应以获得其加成盐 然后在不存在或存在有机溶剂的情况下使所述加成盐与胺衍生物反应。

    Process for preparing 5-amino-1,2,3-thiadiazoles
    10.
    发明授权
    Process for preparing 5-amino-1,2,3-thiadiazoles 失效
    制备5-氨基-1,2,3-噻二唑的方法

    公开(公告)号：US4269982A

    公开(公告)日：1981-05-26

    申请号：US142718

    申请日：1980-04-22

    申请人： Mamoru Nakai ,  Katsumasa Harada ,  Yoshikatsu Mori

    发明人： Mamoru Nakai ,  Katsumasa Harada ,  Yoshikatsu Mori

    IPC分类号： C07D285/06

    CPC分类号： C07D285/06

    摘要： There is provided a process for preparing a 5-amino-1,2,3-thiadiazole represented by the formula ##STR1## wherein R represents a hydrogen atom, a lower alkyl group or an aryl group, which comprises bringing a diazoacetonitrile represented by the formula ##STR2## wherein R has the same meaning as defined above, into contact with hydrogen sulfide in the presence of a base or with a salt of hydrogen sulfide, in a solvent.

    摘要翻译： 提供一种制备式（Ⅰ）所示的5-氨基-1,2,3-噻二唑的方法，其中R代表氢原子，低级烷基或芳基，其中包括将由 其中R具有与上述相同的含义，在碱的存在下或与硫化氢的盐在溶剂中与硫化氢接触。