Process for the preparation of 1-substituted anthraquinones
    2.
    发明授权
    Process for the preparation of 1-substituted anthraquinones 失效
    制备1-取代的蒽醌的方法

    公开(公告)号:US3966775A

    公开(公告)日:1976-06-29

    申请号:US518209

    申请日:1974-10-25

    CPC分类号: A61K8/355 A61Q5/065

    摘要: A process for the preparation of 1-substituted anthraquinones represented by the general formula I ##EQU1## where, in the formula, R.sub.1 and R.sub.2 represent individually a hydrogen atom or methyl group and X represents a hydroxylamino or amino group,Which comprises treating in a liquid medium a 5-nitro-1,4,4a,9a-tetrahydroanthraquinone represented by the general formula II ##EQU2## where, in the general formula, R.sub.1 and R.sub.2 represent individually a hydrogen atom or methyl group,In the presence of a basic compound with or without a reducing agent.

    摘要翻译: 制备由通式I表示的1-取代的蒽醌的方法HOX | PARALLEL | R2CCCH |角度角| CCCC |平行平行|(I)CCCC |角度角| R1CCCH | PARALLEL | HOH其中,在式 ,R1和R2分别表示氢原子或甲基,X表示羟基氨基或氨基,其包含在通式II HHONO2角表示的液体中间体5-NITRO-1,4,4A,9A-四氢四氢呋喃中的处理 并联| R2CHCCH |角度|角度角| CCCC平行|平行|(II)CCCC |角度|角度角| R1CHCCH角度并联| HHOH其中,在通式中,R1和R2分别表示氢原子或甲基,IN THE 具有或不含还原剂的基本化合物的存在。

    Vertical feed type burnishing drill
    3.
    发明授权
    Vertical feed type burnishing drill 失效
    立式进料抛光钻

    公开(公告)号:US4944640A

    公开(公告)日:1990-07-31

    申请号:US404354

    申请日:1989-09-07

    IPC分类号: B23B51/08 B23B51/00

    摘要: A burnishing drill having a drill body, the forward end of which is formed with a reduced-diameter portion having its external diameter smaller than the maximum external diameter of the drill body. The forward end of the drill body includes a pair of first cutting edges formed in the reduced-diameter to include with a first cutting angle, and a pair of second cutting edges formed to extend radially in a direction perpendicular to the first cutting edges at least from the inward position of a plane including the outermost peripheral walls of the first cutting edges to the position of another plane including the outermost peripheral wall of the drill body.Each of the first cutting edges extends radially outward from the center of the forward end of the dril body and includes axially in the rearward direction while each of the second cutting edges inclines extends radially outward from the drill body and inclines axially in the forward direction.

    摘要翻译: 一种抛光钻具,其具有钻体,其前端形成有其外径小于钻体的最大外径的直径小的部分。 钻体的前端包括一对以缩径形成的第一切削刃,其包括第一切割角度,以及一对第二切削刃,其形成为沿与第一切削刃垂直的方向径向延伸至少 从包括第一切削刃的最外周壁的平面的向内位置到包括钻体的最外周壁的另一平面的位置。 每个第一切削刃从钻头体的前端的中心径向向外延伸并且包括沿向后方向的轴向,而每个第二切削刃倾斜从钻头体径向向外延伸并沿向前的方向轴向倾斜。

    Method for transportation and storage of N-phenyl maleimide in molten
form
    4.
    发明授权
    Method for transportation and storage of N-phenyl maleimide in molten form 失效
    用于运输和储存熔融形式的N-苯基马来酰亚胺的方法

    公开(公告)号:US4962205A

    公开(公告)日:1990-10-09

    申请号:US392482

    申请日:1989-08-11

    IPC分类号: C07D207/448 C07D207/44

    CPC分类号: C07D207/448

    摘要: Method for the transportation or storage of N-phenyl maleimide, which method comprises mixing N-phenyl maleimide with maleic anhydride in a ratio of 1 to 90 parts by weight of N-phenyl maleimide to 99 to 10 parts by weight of maleic anhydride and handling the resultant mixture in a molten state in the presence of a polymerization inhibitor, and a composition of liquid state.

    摘要翻译: N-苯基马来酰亚胺的运输或储存方法,该方法包括将N-苯基马来酰亚胺与马来酸酐以1-90重量份N-苯基马来酰亚胺与99-10重量份马来酸酐的比例混合并处理 所得到的混合物在聚合抑制剂存在下处于熔融状态,以及液态组成。

    Process for selective methylation of phenols
    6.
    发明授权
    Process for selective methylation of phenols 失效
    苯酚选择性甲基化的方法

    公开(公告)号:US3959394A

    公开(公告)日:1976-05-25

    申请号:US610186

    申请日:1975-09-04

    IPC分类号: B01J23/14 C07C37/16

    CPC分类号: B01J23/14 C07C37/16

    摘要: Phenols such as phenol, o-cresol, m-cresol, p-cresol, xylenols, ethylphenol, propylphenol, and butylphenol are selectively methylated in ortho-position with methanol in the vapour phase at an elevated temperature, for example, 300.degree. to 500.degree.C, under a pressure of 0.5 to 20 atmospheres absolute at a space velocity of 100 to 2000 hr.sup..sup.-1 in the presence of a three-component catalyst consisting of cerium oxide, magnesium oxide and germanium oxide, or a four-component catalyst consisting of cerium oxide, magnesium oxide, germanium oxide and tin oxide.

    摘要翻译: 苯酚,邻甲酚,间甲酚,对甲酚,二甲苯酚,乙基苯酚,丙基苯酚和丁基苯酚等苯酚在气相中的甲醇的邻位选择性甲基化,例如在300〜500℃ 在由氧化铈,氧化镁和氧化锗组成的三组分催化剂的存在下,以100至2000hr -1的空间速度在0.5至20个大气压的绝对压力下进行,或四组分 由氧化铈,氧化镁,氧化锗和氧化锡组成的催化剂。

    Method of finishing inner circumferential surface, and reamer
    7.
    发明授权
    Method of finishing inner circumferential surface, and reamer 失效
    内圆周表面处理方法,铰刀

    公开(公告)号:US06568883B1

    公开(公告)日:2003-05-27

    申请号:US09647740

    申请日:2000-10-04

    IPC分类号: B23B5102

    摘要: A reamer includes: (a) an axially-distal-end small-diameter portion; (b) a guide portion which is axially adjacent to the small-diameter portion; (c) at least one flute which is formed in an outer circumferential surface of the reamer and which extends from the axially distal end of the reamer toward the axially distal end of the reamer; and (d) at least one land surface which is circumferentially adjacent to the flute. The land has a cutting blade portion formed therein in the axially-distal-end small-diameter portion. A first radial distance from an axis of the reamer to a radically outer end of the cutting blade portion is larger than a second radial distance from the axis to the land surface in the axially-distal-end small-diameter portion. The first radial distance is smaller than a third radial distance from the axis to the land surface in the guide portion.

    摘要翻译: 铰刀包括:(a)轴向前端小直径部分; (b)与所述小直径部分轴向相邻的引导部分; (c)至少一个槽,其形成在所述铰刀的外周表面中并且从所述铰刀的轴向远端朝向所述铰刀的轴向远端延伸; 和(d)至少一个与所述凹槽相邻的陆面。 该脊部在轴向前端小直径部分中形成有切割刀片部分。 从铰刀的轴线到切割刀片部分的根本外端的第一径向距离大于在轴向前端小直径部分中从轴线到陆地表面的第二径向距离。 第一径向距离小于在引导部分中从轴线到陆地表面的第三径向距离。

    Vehicle seat and method of production thereof
    8.
    发明授权
    Vehicle seat and method of production thereof 失效
    车座及其生产方法

    公开(公告)号:US5368368A

    公开(公告)日:1994-11-29

    申请号:US879205

    申请日:1992-05-06

    摘要: End portions of elastic fibers are fixed to a holder plate as well as a holder cover constituting a seat surface of a vehicle seat, thereby spanning the elastic fibers. A net-shaped seat portion is thus formed of the elastic fibers. The holder plate and the holder cover are suspended on the elastic fibers in the upper-diagonal direction. The elastic fibers thus strained are overlaid with urethane foam, and a cushion member is formed by a urethane pad. Meanwhile, the holder cover is pulled by a spring in the lower-diagonal direction so as to impart an initial tensile force to the elastic fibers, whereby deflections are eliminated. When an occupant's weight acts on the vehicle seat with the above construction, the vehicle seat deflects downward, with a predetermined deflection curve being drawn. However, both end portions of the elastic fibers are suspended on the elastic fibers in the upper-diagonal direction. This provides a substantially linear deflection curve, and a feeling of sitting-on-the-bottom is eliminated. The elastic fibers and the urethane pad can be formed integrally by means of a mold, thereby allowing a shorter manufacturing process.

    摘要翻译: 弹性纤维的端部固定在保持板和构成车辆座椅的座面的保持器盖上,从而跨越弹性纤维。 因此,网状座部由弹性纤维形成。 保持板和保持器盖沿上下方向悬挂在弹性纤维上。 这样紧张的弹性纤维被聚氨酯泡沫覆盖,并且由氨基甲酸乙酯垫形成缓冲部件。 同时,保持器盖由弹簧向下拉方向拉动,从而赋予弹性纤维初始张力,从而消除挠曲。 当乘员的重量作用在具有上述结构的车辆座椅上时,车辆座椅向下偏转,并且绘制预定的偏转曲线。 然而,弹性纤维的两端部在上下方向悬挂在弹性纤维上。 这提供了基本上线性的偏转曲线,并且消除了坐在底部的感觉。 弹性纤维和聚氨酯垫可以通过模具一体地形成,从而允许较短的制造过程。

    Burnishing drill
    9.
    发明授权
    Burnishing drill 失效
    抛光钻

    公开(公告)号:US5282705A

    公开(公告)日:1994-02-01

    申请号:US969077

    申请日:1992-10-30

    摘要: A burnishing drill includes a cylindrical shank and a drill body connected to the shank. Drilling edges, reaming faces and reaming edges are formed on a first reduced-diameter portion, a second reduced-diameter portion and a third reduced-diameter portion located at a foremost end of the drill body respectively. The reaming faces which are located axially at backward positions of the drilling edges and the reaming edges extend radially outward from the foremost end of the drill and incline axially in the rearward direction, and also extend radially outward and incline in the rearward direction with respect of the rotational direction. Since an inner surface of the hole drilled and reamed by the drilling edges and the reaming edges can be further smoothed by the reaming faces, the surface roughness of the finished hole can be much improved.

    摘要翻译: 抛光钻具包括圆柱形柄和连接到柄的钻体。 钻头边缘,铰孔面和铰孔边缘分别形成在位于钻头本体的最前端的第一直径部分,第二缩径部分和第三缩径部分上。 位于钻孔边缘和铰接边缘的后方位置的扩孔面从钻头的最前端径向向外延伸,并沿着向后的方向轴向倾斜,并且还沿径向向外延伸并相对于 的旋转方向。 由于通过钻孔边缘和铰刀边缘钻孔和扩孔的孔的内表面可以通过铰孔面进一步平滑,所以可以大大提高成品孔的表面粗糙度。

    High speed burnishing drill
    10.
    发明授权
    High speed burnishing drill 失效
    高速抛光钻

    公开(公告)号:US5112167A

    公开(公告)日:1992-05-12

    申请号:US566477

    申请日:1990-08-14

    IPC分类号: B23B51/08 B23B51/00 B23D77/00

    摘要: A high speed burnishing drill having drilling edges and reaming edges provided at the forward end of a cylindrical drilling body. The drilling edges are inclined diametrically from the center of the forward end to the axially rearward direction, while the outermost peripheral wall of the drilling edges are on a reduced-diameter portion of the maximum external diameter of the drill body. The reaming edges extend from the plane intersecting the drilling edges radially from a position inward of the outermost peripheral of the drilling edges, outwards, so as to incline axially in the forward direction with a second cutting angle. A reduced diameter portion extends axially backward from the outermost peripheral wall of the drilling edges. An enlarged-diameter guide face extends axially from a slope behind the corresponding drilling edge in the rotational direction, and the forwardmost end of the enlarged guide face is located axially behind the corresponding reaming edge.

    摘要翻译: PCT No.PCT / JP89 / 00804 Sec。 371日期1990年8月14日 102(e)日期1990年8月14日PCT提交1989年8月4日PCT公布。 WO90 / 14189 PCT出版物 日期:1990年11月29日。一种高速抛光钻,其具有设置在圆柱形钻体的前端的钻孔边缘和铰孔边缘。 钻孔边缘从前端的中心向轴向向后方向直径倾斜,而钻孔边缘的最外周壁位于钻体的最大外径的直径减小的部分上。 延伸边缘从与钻孔边缘相交的平面从钻孔边缘的最外周边的内侧径向向外延伸,以便以第二切割角向前方向轴向倾斜。 直径减小的部分从钻孔边缘的最外周壁向后方延伸。 一个较大直径的导向面从旋转方向上相应的钻孔边缘后面的斜面轴向延伸,并且扩大的导向面的最前端位于相应的铰接边缘的轴向后方。