Method of producing a silicon carbide sintered body
    1.
    发明授权
    Method of producing a silicon carbide sintered body 失效
    碳化硅烧结体的制造方法

    公开(公告)号:US4238434A

    公开(公告)日:1980-12-09

    申请号:US008851

    申请日:1979-02-02

    CPC分类号: C04B35/565

    摘要: A method of producing a silicon carbide sintered body is disclosed. The sintered body having a density of at least 2.4 g/cm.sup.3 is produced by preparing a mixture consisting mainly of silicon carbide with an average particle size of not more than 3.0 microns and a temporary binder, shaping the mixture into a green body and sintering the green body at a temperature of 1,750.degree. C.-2,100.degree. C. Before the sintering, silicon carbide is contacted with either hydrofluoric acid or anhydrous hydrofluoric acid and an atmosphere is held in a non-oxidizing state after the contact treatment up to the completion of the sintering.

    摘要翻译: 公开了一种生产碳化硅烧结体的方法。 通过制备主要由平均粒度不大于3.0微米的碳化硅组成的混合物和临时粘结剂,将该混合物制成生坯并烧结至少为2.4g / cm3的烧结体 生坯在1750℃-2,100℃的温度下烧结之前,将碳化硅与氢氟酸或无水氢氟酸接触,并在接触处理后将其保持在非氧化状态,直到完成 的烧结。

    Polymer conjugate of folic acid or folic acid derivative
    6.
    发明授权
    Polymer conjugate of folic acid or folic acid derivative 有权
    叶酸或叶酸衍生物的聚合物缀合物

    公开(公告)号:US09149540B2

    公开(公告)日:2015-10-06

    申请号:US12991041

    申请日:2009-04-28

    摘要: Disclosed is a polymer conjugate of folic acid or a folic acid derivative, wherein an amide bond is not used. The compound has chemical stability and adequate drug release rate in the living organism. Specifically disclosed is a polymer conjugate of folic acid or a folic acid derivative, wherein a substituent represented by formula (I) is bonded to a carboxy group of a block copolymer which is composed of a polyethylene glycol and a polymer having a carboxy group in a side chain, or a pharmacologically acceptable salt thereof. [In the formula, A represents a monocyclic or fused aromatic group; G represents an optionally substituted (C1-C6) alkylene group; Y represents a hydrogen atom or a substituent; and E represents a residue of folic acid or a folic acid derivative.]

    摘要翻译: 公开了叶酸或叶酸衍生物的聚合物缀合物,其中不使用酰胺键。 该化合物在生物体中具有化学稳定性和足够的药物释放速率。 具体公开的是叶酸或叶酸衍生物的聚合物缀合物,其中由式(I)表示的取代基与由聚乙二醇和具有羧基的聚合物组成的嵌段共聚物的羧基键合 侧链或其药理学上可接受的盐。 [式中,A表示单环或稠合芳基; G表示任选取代的(C 1 -C 6)亚烷基; Y表示氢原子或取代基; E表示叶酸或叶酸衍生物的残基。]

    Passenger conveyer apparatus
    7.
    发明授权
    Passenger conveyer apparatus 失效
    客运输送机

    公开(公告)号:US06382388B1

    公开(公告)日:2002-05-07

    申请号:US09695310

    申请日:2000-10-25

    IPC分类号: B66B2312

    CPC分类号: B66B23/147

    摘要: A passenger conveyer apparatus including a plurality of steps connected to each other in an endless loop, traveling on a forward path, a backward path and a pair of turning paths connecting between opposite ends of the forward path and the backward path. Each of the steps comprising a step tread and first and second guide rollers offset from each other in the traveling direction of the steps. The apparatus also includes a forward rail configured to guide the first and the second guide rollers in the forward path, a backward rail configured to guide the first and the second guide rollers in the backward path, and a pair of turning rails having a curving rail formed in an arc, configured to guide the second guide roller in the turning paths. At least one of the turning rails is formed in a manner such that a line segment drawn between an orbital center of a corresponding curving rail and a first center of the first guide roller makes an acute angle with a line segment drawn between the orbital center and a second center of the second guide roller, and a loci made by respective turning motions of front and rear edges of the step tread cross each other.

    摘要翻译: 一种乘客输送装置,包括在无限循环中彼此连接的多个台阶,沿前进路径,后向路径和连接在前进路径和后退路径的相对端之间的一对转向路径行进。 每个步骤包括台阶胎面和第一和第二导辊,其在台阶的行进方向上彼此偏移。 所述装置还包括:前导轨,其构造成在所述前方路径中引导所述第一导向辊和所述第二导向辊;向后轨道,其构造成在所述向后路径中引导所述第一导向辊和所述第二导辊;以及一对转动轨道, 形成为弧形,构造成在所述转动路径中引导所述第二引导辊。 转动轨道中的至少一个以这样的方式形成,使得在对应弯曲轨道的轨道中心和第一导向辊的第一中心之间绘制的线段与在轨道中心和 第二引导辊的第二中心,以及由台阶胎面的前后边缘的相应转动运动构成的轨迹彼此交叉。

    Polymer Conjugate Of Folic Acid Or Folic Acid Derivative
    8.
    发明申请
    Polymer Conjugate Of Folic Acid Or Folic Acid Derivative 有权
    叶酸或叶酸衍生物的聚合物共轭物

    公开(公告)号:US20110294980A1

    公开(公告)日:2011-12-01

    申请号:US12991041

    申请日:2009-04-28

    IPC分类号: C07K14/00 C07K1/107

    摘要: Disclosed is a polymer conjugate of folic acid or a folic acid derivative, wherein an amide bond is not used. The compound has chemical stability and adequate drug release rate in the living organism. Specifically disclosed is a polymer conjugate of folic acid or a folic acid derivative, wherein a substituent represented by formula (I) is bonded to a carboxy group of a block copolymer which is composed of a polyethylene glycol and a polymer having a carboxy group in a side chain, or a pharmacologically acceptable salt thereof. [In the formula, A represents a monocyclic or fused aromatic group; G represents an optionally substituted (C1-C6) alkylene group; Y represents a hydrogen atom or a substituent; and E represents a residue of folic acid or a folic acid derivative.]

    摘要翻译: 公开了叶酸或叶酸衍生物的聚合物缀合物,其中不使用酰胺键。 该化合物在生物体中具有化学稳定性和足够的药物释放速率。 具体公开的是叶酸或叶酸衍生物的聚合物缀合物,其中由式(I)表示的取代基与由聚乙二醇和具有羧基的聚合物组成的嵌段共聚物的羧基键合 侧链或其药理学上可接受的盐。 [式中,A表示单环或稠合芳基; G表示任选取代的(C 1 -C 6)亚烷基; Y表示氢原子或取代基; E表示叶酸或叶酸衍生物的残基。]