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51. 发明授权

US4479017A Process for producing ether compounds by catalytic hydrogenolysis 失效
标题翻译：通过催化氢解制备醚化合物的方法
公开(公告)号：US4479017A
公开(公告)日：1984-10-23
申请号：US391304
申请日：1982-06-23
申请人： Tadashi Ayusawa , Tadamichi Aoki , Yutaka Nomura
发明人： Tadashi Ayusawa , Tadamichi Aoki , Yutaka Nomura
IPC分类号： B01J23/44 , C07C29/10 , C07C29/141 , C07C41/28 , C07C41/00
CPC分类号： B01J23/44 , C07C29/10 , C07C29/141 , C07C41/28
摘要： In a process for producing an ether compound by the catalytic hydrogenolysis of an acetal compound in the presence of a catalyst, the improvement wherein an acetal compound of the following formula (2) ##STR1## wherein R represents a hydrogen atom or a lower alkoxy group, Y represents an alkylene group having 2 to 12 carbon atoms, n represents a positive number of from 1 to 6, the two groups R(YO).sub.n may, together with the carbon atom to which they are bonded, represent a 1,3-dioxolane ring, and R.sup.1 and R.sup.2, independently from each other, represent a hydrogen atom or a C.sub.1 -C.sub.6 alkyl group, provided that at least one of R.sup.1 and R.sup.2 represents a hydrogen atom,is catalytically hydrogenolyzed in the presence of a palladium catalyst on a carbon carrier in the absence of an acid substance added, thereby to form an ether compound of the following formula (1)R(YO).sub.n CHR.sup.1 R.sup.2 (1) whereinR, R.sup.1, R.sup.2, Y and n are as defined.
摘要翻译：在催化剂存在下，通过缩醛化合物的催化氢解生产醚化合物的方法，其中下述式（2）的缩醛化合物其中R表示氢原子或低级烷氧基，Y表示碳原子数2〜12的亚烷基，n表示1至6的正数，R（YO）2基可以与它们所键合的碳原子一起表示 1,3-二氧戊环，R1和R2彼此独立地表示氢原子或C1-C6烷基，条件是R1和R2中的至少一个表示氢原子，在存在下催化氢解在不存在酸物质的情况下在碳载体上的钯催化剂，从而形成下式（1）的醚化合物：R（YO）n CHR 1 R 2（1）其中R，R 1，R 2，Y和n如上所定义。

52. 发明授权

US4244322A Magnetic brush type developing apparatus 失效
标题翻译：磁刷式显影装置
公开(公告)号：US4244322A
公开(公告)日：1981-01-13
申请号：US884622
申请日：1978-03-06
申请人： Yutaka Nomura , Mitsuaki Koyama , Masahiro Katou
发明人： Yutaka Nomura , Mitsuaki Koyama , Masahiro Katou
IPC分类号： G03G15/09
CPC分类号： G03G15/0942
摘要： A developing apparatus includes a cylindrical drum having a photosensitive layer provided around the outer peripheral surface thereof, and a magnetic roller mounted within a receptacle and having permanent magnets oriented in a body thereof and a rotating cylindrical sleeve provided on the outer peripheral surface of the body thereof. The receptacle holds a developer mixture including powdered iron and toner and it is opened to provide a magnetic brush exposure window where the magnetic roller and cylindrical drum face each other with a gap left therebetween. The magnetic roller continuously supplies the developer mixture in the form of a magnetic brush toward the gap between the magnetic roller and the cylindrical drum. A doctor blade is attached to the lowest edge portion of the exposure window to restrict the thickness of the magnetic brush. A magnetic piece is attached to the outer surface of the doctor blade and attracts the powdered iron in the magnetic brush thereto due to a magnetic field created between the permanent magnet in the magnetic roller and the magnetic piece, thereby providing an iron powder curtain between the magnetic brush and the magnetic piece. The curtain serves to prevent the developer mixture from flying off onto the photosensitive layer on the cylindrical drum and to permit the toner powder in the developer mixture to be effectively charged through a frictional contact with the curtain.
摘要翻译：显影装置包括：圆筒形滚筒，其具有围绕其外周表面设置的感光层;以及磁辊，其安装在容器内并具有定向在其本体中的永磁体和设置在主体的外周面上的旋转圆柱形套筒其中。容器保持显影剂混合物，包括粉末状铁和调色剂，并打开以提供磁刷暴露窗口，其中磁性辊和圆柱形鼓彼此面对并且间隔开间隙。磁性辊将磁性辊的形式的显影剂混合物持续地供给到磁性辊和圆筒之间的间隙。刮刀附着在曝光窗的最下边缘部分，以限制磁刷的厚度。由于在磁辊中的永久磁铁和磁片之间产生磁场，磁片被附着在刮刀的外表面上并吸引磁刷中的铁粉，从而在磁刷之间提供铁粉幕磁刷和磁片。帘幕用于防止显影剂混合物飞离到圆柱形鼓上的感光层上，并允许显影剂混合物中的调色剂粉末通过与窗帘的摩擦接触而被有效地带电。

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