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    • 5. 发明授权
    • Preparing epoxy resin by distilling two fractions to recover and reuse epihalohydrin without glycidol
    • 通过蒸馏两个馏分制备环氧树脂以回收和重新使用没有缩水甘油的表卤代醇
    • US06794478B2
    • 2004-09-21
    • US10252840
    • 2002-09-24
    • Ichiro OguraKazuo Arita
    • Ichiro OguraKazuo Arita
    • C08G828
    • C08G59/00C08G59/063
    • A process for preparing an epoxy resin involves the reaction of a polyhydric phenol with an epihalohydrin in a water-soluble solvent in the presence of an alkali reactive catalyst wherein a continuous distillation of the reaction product is conducted to (1) isolate a first recovered fraction containing unreacted epihalohydnn, water-soluble solvent and at most 0.01 part by weight of the by-product glycidol per one part by weight of unreacted epihalohydrin; (2) isolate a second recovered fraction containing unreacted epihalohydrin, the by-product glycidol and at most 0.01 part by weight of water-soluble organic solvent per one part by weight of unreacted epihalohydrin; (3) recover the epihalohydrin from the second recovered fraction by washing with water to remove the water-soluble organic solvent and glycidol; and (4) reuse the first recovered fraction and the recovered epihalohydrin from the second recovered fraction as a raw material of the reaction.
    • 制备环氧树脂的方法包括在碱反应性催化剂存在下,在水溶性溶剂中使多元酚与表卤代醇反应,其中进行反应产物的连续蒸馏以(1)将第一回收级分 含有未反应的表卤代水溶性溶剂和每1重量份未反应的表卤代醇至少0.01重量份的副产物缩水甘油;(2)分离含有未反应的表卤代醇,副产物缩水甘油和至多 0.01重量份的水溶性有机溶剂,每1重量份未反应的表卤代醇;(3)通过用水洗涤从第二回收部分中回收表卤代醇以除去水溶性有机溶剂和缩水甘油; 和(4)将来自第二回收级分的第一回收级分和回收的表卤代醇作为反应的原料再利用。
    • 9. 发明授权
    • Method and system for displaying X-ray images of blood-vessel structure
parts of subject
    • 用于显示受试者血管结构部位的X射线图像的方法和系统
    • US4943987A
    • 1990-07-24
    • US430964
    • 1989-11-01
    • Hiroshi AsahinaIchiro Ogura
    • Hiroshi AsahinaIchiro Ogura
    • A61B6/00
    • A61B6/481A61B6/504
    • X-ray mask images of a subject are acquired by a TV camera before a contrast media injected by a injector reaches a region of interest of the subject, the acquired X-ray mask images are stored in a mask image memory in accordance with a frame counter and a memory controller. X-ray contrast images of the subject are acquired by the TV camera after the contrast media reaches the region of interest of the subject, the acquired X-ray contrast images are stored in a contrast image memory in accordance with a frame counter and a memory controller. The mask images and contrast images are subtracted by a subtraction processor, and X-ray subtraction images are obtained. The X-ray images of the subject acquired by the TV camera and the X-ray subtraction images are superimposed by a superimposition processor, and then are displayed on a TV monitor.
    • 在由注射器注射的造影剂到达受试者的感兴趣区域之前,通过TV摄像机获取被摄体的X射线掩模图像,所获取的X射线掩模图像根据帧被存储在掩模图像存储器中 计数器和内存控制器。 在造影剂到达受检者的感兴趣区域之后,电视摄像机获取被摄体的X射线对比度图像,所获取的X射线对比度图像根据帧计数器和存储器存储在对比度图像存储器中 控制器。 通过减法处理器减去掩模图像和对比度图像,并获得X射线减影图像。 由电视摄像机获取的被摄体的X射线图像和X射线减影图像通过叠加处理器叠加,然后显示在TV监视器上。