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    • 88. 发明授权
    • Production of tricyclodecane dicarbaldehyde, pentacyclopentadecane dicarbaldehyde and corresponding dimethanols
    • 生产三环癸二醛,五环十五烷二甲醛和相应的二甲醇
    • US06365782B1
    • 2002-04-02
    • US09609374
    • 2000-07-03
    • Kenichi NakamuraKazuhiro YamadaTakashi FujiiTakashi Motoi
    • Kenichi NakamuraKazuhiro YamadaTakashi FujiiTakashi Motoi
    • C07C4550
    • C07C45/50C07C29/141C07C29/16C07C45/80C07C2603/68C07C2603/91C07C47/347C07C31/278
    • A method of producing tricyclodecane dicarbaldehyde and/or pentacyclopentadecane dicarbaldehyde by the hydroformylation of dicyclopentadiene and/or tricyclopentadiene. The tricyclodecane dicarbaldehyde and/or pentacyclopentadecane dicarbaldehyde in the hydroformylation product liquid are extracted with an extraction solvent comprising a polyhydric alcohol having 2 to 6 carbon atoms. With such extraction, the tricyclodecane dicarbaldehyde and/or pentacyclopentadecane dicarbaldehyde transfer into the extraction solvent while retaining the catalyst components in the hydroformylation solvent. The controlled extraction atmosphere with an oxygen concentration of 1000 ppm or lower prevents the rhodium compound from transferring into the extraction solvent, thereby avoiding the loss of expensive rhodium. The extraction solvent containing tricyclodecane dicarbaldehyde and/or pentacyclopentadecane dicarbaldehyde as such can be directly subjected to catalytic hydrogenation to produce corresponding tricyclodecane dimethanol and/or pentacyclopentadecane dimethanol.
    • 通过二环戊二烯和/或三环戊二烯的加氢甲酰化生产三环癸二醛和/或五环十五烷二醛的方法。 加氢甲酰化产物液中的三环癸烷二醛和/或五环十五烷二甲醛用包含具有2至6个碳原子的多元醇的提取溶剂萃取。 通过这样的提取,将三环癸烷二醛和/或五环十五烷二醛转移到萃取溶剂中,同时将催化剂组分保留在加氢甲酰化溶剂中。 氧浓度为1000ppm以下的受控提取气氛防止铑化合物转移到萃取溶剂中,从而避免昂贵的铑的损失。 可以直接对含有三环癸烷二醛和/或五环十五烷二醛的提取溶剂进行催化氢化以产生相应的三环癸烷二甲醇和/或五环十五烷二甲醇。
    • 90. 发明授权
    • Vertically movable grass catcher for a mower
    • 垂直移动的割草机割草机
    • US6012273A
    • 2000-01-11
    • US86089
    • 1998-05-28
    • Hiroyuki OgasawaraKatsuhiko UemuraMasaki HayashiNobuyuki YamashitaTakashi Fujii
    • Hiroyuki OgasawaraKatsuhiko UemuraMasaki HayashiNobuyuki YamashitaTakashi Fujii
    • A01D34/63A01D43/063A01D61/00
    • A01D43/0635A01D2101/00A01D34/63
    • A grass/lawn mower vehicle having a mower unit, and mechanism for transporting grass clippings cut by the mower unit through a suitable duct. The vehicle includes a grass catcher for collecting the grass clippings transported through the duct, a lid for opening and closing an opening of the grass catcher, a horizontal axis for connecting the grass catcher and the lid to be pivotable relative to each other, and a control mechanism for raising the grass catcher relative to the vehicle and swinging the grass catcher about the horizontal axis, thereby allowing the grass catcher to dump the grass clippings from an elevated position. The control mechanism includes a parallelogram link mechanism having one side thereof connected to the vehicle, and the other side connected to the lid, and an actuator for moving the link mechanism between a lower position and an upper position, and swinging the grass catcher when the link mechanism is in the upper position.
    • 具有割草机单元的草坪割草机,以及用于通过适当的管道传送由割草机单元切割的草屑的机构。 车辆包括用于收集通过管道传送的草屑的草地捕集器,用于打开和关闭捕草器的开口的盖子,用于连接草捕获器和盖子的水平轴线,以便相对于彼此可枢转, 用于相对于车辆升起捕草器的控制机构,围绕水平轴摆动捕草器,从而允许草地捕捞者从升高的位置倾倒草地。 控制机构包括:平行四边形连杆机构,其一侧连接到车辆,另一侧连接到盖子;以及致动器,用于在下部位置和上部位置之间移动连杆机构,并且当抓取器 链接机构处于上位。