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1. 发明授权

US5429721A Process for preparing diacetoxybutene 失效
标题翻译：制备二乙酰氧基丁烯的方法
公开(公告)号：US5429721A
公开(公告)日：1995-07-04
申请号：US245663
申请日：1994-05-18
申请人： Hiroaki Kandori , Nobuyuki Murai
发明人： Hiroaki Kandori , Nobuyuki Murai
IPC分类号： B01J23/44 , C07B61/00 , C07C67/055 , C07C67/54 , C07C69/16 , B01D3/10 , C07C69/02
CPC分类号： C07C67/54 , C07C67/055
摘要： A process for preparing diacetoxybutene, including:reacting butadiene, acetic acid and oxygen in the presence of a palladium-based catalyst;feeding continuously the resulting reaction product into a first distillation tower;feeding continuously a withdrawn bottoms withdrawn from the first distillation tower into a second distillation tower;withdrawing bottoms containing high boiling point materials from the bottom of the second distillation tower, so that the content of the high boiling point materials in the bottoms of the second distillation tower is not more than 20 wt %;feeding continuously the withdrawn bottoms into a thin-film evaporator whose internal pressure is kept lower than the bottom pressure of the second distillation tower to carry out evaporation treatment; andrecycling the evaporated materials mainly containing diacetoxybutene into the second distillation tower.
摘要翻译：一种制备二乙酰氧基丁烯的方法，包括：在钯基催化剂存在下使丁二烯，乙酸和氧反应; 将所得反应产物连续进料到第一蒸馏塔中; 将从第一蒸馏塔排出的回收塔底馏分连续进料到第二蒸馏塔中; 从第二蒸馏塔的底部排出含有高沸点物质的塔底物，使得第二蒸馏塔底部的高沸点物质的含量不大于20wt％; 将取出的底部物料连续进入薄膜蒸发器，其内部压力保持低于第二蒸馏塔的底部压力以进行蒸发处理; 并将主要含有二乙酰氧基丁烯的蒸发材料回收到第二蒸馏塔中。

2. 发明授权

US5397439A Method for recovering 1,4-butanediol 失效
标题翻译： 1,4-丁二醇的回收方法
公开(公告)号：US5397439A
公开(公告)日：1995-03-14
申请号：US163554
申请日：1993-12-09
申请人： Hiroaki Kandori , Ken Siraga
发明人： Hiroaki Kandori , Ken Siraga
IPC分类号： B01J23/44 , B01J23/46 , C07B61/00 , C07C29/80 , C07C29/90 , C07C31/20 , B01D3/34
CPC分类号： C07C29/80 , C07C29/90 , Y02P20/582 , Y10S203/20
摘要： A method for recovering 1,4-butanediol from a hydrolysate obtained by hydrolyzing diacetoxybutane, by (1) supplying the hydrolysate to a first distillation column, distilling off substantially all the amounts of water and acetic acid as the top stream from the first distillation column, and supplying a bottom liquid to a second distillation column, (2) distilling off diacetoxybutane and hydroxyacetoxybutane as the top or upper side stream from of the second distillation column, and circulating the distillates to a hydrolysis zone, while withdrawing crude 1,4-butanediol as a lower side stream in vapor phase from the second distillation column, (3) supplying the crude 1,4-butanediol and hydrogen gas to a hydrogenation reaction zone packed with a hydrogenation catalyst, and (4) supplying the hydrogenation reaction product to a third distillation column, distilling off low boiling point components and withdrawing 1,4-butanediol as the bottom or side stream from the third distillation column.
摘要翻译：通过（1）将水解产物供应到第一蒸馏塔中，从第一蒸馏塔蒸馏基本上所有量的水和乙酸作为顶部流，从通过水解二乙酰氧基丁烷获得的水解产物中回收1,4-丁二醇的方法，并向第二蒸馏塔供应底部液体，（2）从第二蒸馏塔蒸馏出二乙酰氧基丁烷和羟基乙酰氧基丁烷作为顶部或上部侧流，并将馏出物循环到水解区，同时取出粗品1,4- （3）将粗1,4-丁二醇和氢气供给到装有氢化催化剂的氢化反应区，和（4）将氢化反应产物供给到第三蒸馏塔，蒸馏掉低沸点组分并从第三蒸馏塔中回收1,4-丁二醇作为底部或侧流 n。

3. 发明授权

US5906328A Pre-tensioner for seat belt device 失效
标题翻译：用于安全带装置的预张紧器
公开(公告)号：US5906328A
公开(公告)日：1999-05-25
申请号：US38940
申请日：1998-03-12
申请人： Tetsuya Hamaue , Muneo Nishizawa , Hiroaki Kandori
发明人： Tetsuya Hamaue , Muneo Nishizawa , Hiroaki Kandori
IPC分类号： B60R22/46 , F16D41/064
CPC分类号： F16D41/064 , B60R22/4628 , B60R2022/468
摘要： A pre-tensioner of a seat belt device capable of securely and rapidly transmitting torque between a driven shaft and a rotational ring when the pre-tensioner is activated. The driven shaft projecting from a reel for retracting a seat belt is inserted into a housing and the rotational ring is positioned to surround a gear of the driven shaft. The rotational ring is provided with five guide faces in the inner surface thereof and pins are inserted into pocket portions of the rotational ring. Each pin is held at the both ends by an annular portion of a body and a cover. Stepped portions are formed along peripheries of both ends of each guide face to form spaces.
摘要翻译：一种安全带装置的预张紧器，其能够在预张紧器被启动时能够在从动轴和旋转环之间牢固而快速地传递扭矩。从用于缩回座椅安全带的卷轴突出的从动轴被插入壳体中，并且旋转环被定位成围绕从动轴的齿轮。旋转环在其内表面上设置有五个引导面，并且销插入到旋转环的凹部中。每个销通过主体和盖的环形部分保持在两端。沿着每个引导面的两端的周边形成台阶部，形成空间。

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