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    • 74. 发明授权
    • Aromatic polyester
    • 芳香聚酯
    • US08129493B2
    • 2012-03-06
    • US12871213
    • 2010-08-30
    • Masayoshi TabataTakayoshi Yamazaki
    • Masayoshi TabataTakayoshi Yamazaki
    • C08G64/00C08G63/02
    • C08G63/193C08G63/195Y10T428/31504Y10T428/31507
    • There is provided an aromatic polyester suitable for optical applications, which has not only high heat resistance and transparency, but also enhanced fluidity at a relatively low molding temperature of less than 300° C. despite its high molecular weight to be substantially colorless after the molding process. The aromatic polyester of the present invention comprises polyhydric phenol residues and residues of aromatic polycarboxylic acid, acid halide or acid anhydride thereof; wherein the polyhydric phenol residues comprise polyhydric phenol residues represented by Formula (I): —O—Ar—W1x—Ar—O— and/or Formula (II): —O—Ar—O—, and bulky polyhydric phenol residues represented by Formula (III): —O—Ar—W2—Ar—O—; wherein the molar ratio of the polyhydric phenol residues represented by Formula (I) and/or Formula (II) to the polyhydric phenol residues represented by Formula (III) is in the range of 100:0 to 30:70 (exclusive of 100:0).
    • 提供了适用于光学应用的芳族聚酯,其不仅具有高耐热性和透明性,而且在低于300℃的相对较低的成型温度下也提高了流动性,尽管其成型后其高分子量基本上无色 处理。 本发明的芳族聚酯包括多元酚残基和芳族多元羧酸,酰卤或其酸酐的残基; 其中所述多元酚残基包括由式(I)表示的多元酚残基:-O-Ar-W1x-Ar-O-和/或式(II):-O-Ar-O-,和大体积多元酚残基 式(III):-O-Ar-W2-Ar-O-; 其中由式(I)和/或式(II)表示的多元酚残基与由式(III)表示的多元酚残基的摩尔比在100:0至30:70(不包括100: 0)。
    • 75. 发明授权
    • Belt device for driving elevator
    • 用于驾驶电梯的皮带装置
    • US08066101B2
    • 2011-11-29
    • US11597378
    • 2005-05-26
    • Kazuyuki YuasaYasunori IshikiriyamaAtsuhito Wake
    • Kazuyuki YuasaYasunori IshikiriyamaAtsuhito Wake
    • B66B11/08F16G1/00
    • B66B11/043B66B11/0476
    • A belt device for driving an elevator is provided, the rest retaining capability of which is improved in order to retain the stopped state of an elevator cage if oil or water adheres to between a belt and a pulley. In the belt device for driving an elevator in which a belt 4 is stretched over a plurality of pulleys 1, 2, and 3, and the belt 4 is rotated by the rotations of the pulleys 1, 2, and 3, wherein the coefficient of friction of a contact surface with at least a driving pulley in the belt 4 is set to 0.6 to 3.0, and the contact surface is constructed of a rubber having a hardness (IRHD) of 65 to 95, and a wear resistance of 5 to 300 mm3 in Taber wear (ISO547-1-1999, under conditions: a wear ring of H18; a load of 1 kg; and 1000 rpm).
    • 提供一种用于驱动电梯的皮带装置,其中,如果油或水粘附在皮带和皮带轮之间,则其保持能力得到改善以便保持电梯轿厢的停止状态。 在用于驱动电梯的皮带装置中,其中皮带4在多个滑轮1,2和3上被拉伸,并且皮带4通过皮带轮1,2和3的旋转而旋转,其中系数 接触面与带4中的至少驱动带轮的摩擦力设定为0.6〜3.0,接触面由硬度(IRHD)为65〜95,耐磨性为5〜300的橡胶构成 塔氏磨损中的mm3(ISO547-1-1999,条件为:H18的耐磨环; 1kg的负载和1000rpm)。