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公开(公告)号：US5350009A
公开(公告)日：1994-09-27
申请号：US971922
申请日：1992-12-21
申请人： Toshiaki Mizoguchi , Kiyomi Shio , Yoshiyuki Ueshima , Kazumi Yasuda , Yoshio Morimoto , Hiromitu Haga , Kenichi Miyazawa
发明人： Toshiaki Mizoguchi , Kiyomi Shio , Yoshiyuki Ueshima , Kazumi Yasuda , Yoshio Morimoto , Hiromitu Haga , Kenichi Miyazawa
IPC分类号： B22D11/06 , B22D11/128 , B22D11/20
CPC分类号： B22D11/0622
摘要： A twin roll-type sheet continuous casting apparatus includes a nozzle for supplying molten metal; a pair of casting rolls for casting the molten metal supplied from the nozzle into a sheet, the casting rolls being horizontally disposed in parallel relation to each other, being cooled, and rotated in opposite directions, respectively; a coiler; and a support sheet extending generally horizontally below the pair of casting rolls for receiving the cast sheet and transferring it to the coiler, and being taken up by the coiler along with the cast sheet placed therein. Since tension is not applied to the cast sheet, even a brittle material can be continuously cast into a sheet. Also, a dummy sheet requested for starting the casting of the sheet becomes unnecessary, and even when a rupture of the sheet occurs, the apparatus can be continuously operated without stopping the operation.
摘要翻译： PCT No.PCT / JP92 / 00483 Sec。 一九九二年十二月二十一日 102（e）日期1992年12月21日PCT提交1992年4月16日PCT公布。 WO92 / 18272 PCT出版物 1992年10月29日。双辊式连续铸造设备包括用于供应熔融金属的喷嘴; 一对铸造辊，用于将从喷嘴供给的熔融金属铸造成片材，将铸造辊彼此平行地水平设置，分别冷却并沿相反方向旋转; 卷取机 以及大致水平地延伸在一对铸辊下方的支撑片，用于接收铸造片并将其传送到卷取机，并且被卷取机与放置在其中的铸造片一起被卷取。 由于不对铸片施加张力，因此即使脆性材料也可以连续铸造成片材。 此外，不需要用于开始片材的铸造的虚拟片材，并且即使当片材的破裂发生时，可以在不停止操作的情况下连续地操作该装置。
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2.发明授权Method and apparatus for detecting a sheet thickness in a continuous casting machine 失效在连续铸造机中检测厚度的方法和装置
公开(公告)号：US5191927A
公开(公告)日：1993-03-09
申请号：US796327
申请日：1991-11-22
CPC分类号： G01B21/08
摘要： In a twin-drum type continuous casting machine including a pair of drums having rotary shafts supported in parallel to each other from a pair of frames via chocks and rotating in the opposite directions to each other with a gap space held therebetween, and a depressing device for the drums, a method for detecting a sheet thickness of a thin sheet being cast is improved so that detection of a sheet thickness can be carried out reliably at a high precision without delay. A gap space distance between the drums is calculated by detecting a depressed position from the depressing device. A correction value for the gap space distance is calculated from a deflection of the frame by detecting a depressing force of the depressing device. A correction value for the gap space distance is also calculated from a thermal deformation of the frame by detecting a temperature of frame coolant water of the frame. A correction value for the gap space distance is further calculated from a thermal deformation of the drums by detecting a temperature of drum coolant water of the drums. The calculated gap space distance is corrected with the respective calculated correction values. Thereby the sheet thickness of the thin sheet being cast can be detected precisely. An apparatus favorably available for practicing the above-mentioned method for detecting a sheet thickness of a thin sheet being cast, is also disclosed.
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公开(公告)号：US4954661A
公开(公告)日：1990-09-04
申请号：US321218
申请日：1989-03-09
IPC分类号： C07C39/16
摘要： A method for preparing high-purity bisphenol A which comprises a principal process comprising a first reaction step for reacting phenol with acetone, a first concentration adjusting step, a first crystallization step for precipitating crystals of the adduct of bisphenol A with phenol, a first separation step for separating a solution containing the crystals of the adduct into the crystals and the mother liquor and a phenol removing step for removing phenol from the crystals of the adduct; and a sub-process comprising a second reaction step for reacting p-isopropenylphenol with phenol, a second concentration adjusting step, a second crystallization step, a second separation step for separating a solution containing the second any crystals of the adduct into the second any crystals and the second mother liquor and a cleaving step, the first mother liquor from the principal process being fed to the sub-process and the second any crystals of the adduct from the sub-process being fed to the principal process, is herein provided.In addition, a method for preparing high-purity bisphenol A which comprises a principal process comprising a first reaction/catalyst removing step for reacting phenol with acetone and removing the catalyst, a crystallization step for precipitating the adduct of bisphenol A with phenol, a solid-liquid separation step for separating the reaction solution into the crystals of the adduct and the mother liquor and a phenol removing step for removing phenol from the adduct crystals; and a sub-process comprising a second reaction/catalyst removing step for reacting p-isopropenylphenol with phenol and removing the catalyst, a second phenol removing step, a distillation step for separating bisphenol A and low boiling and high boiling substances and a cleaving step, the mother liquor from the principal process being fed to the sub-process and the distilled bisphenol A from the sub-process being fed to the principal process, is also herein provided.
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公开(公告)号：US4946877A
公开(公告)日：1990-08-07
申请号：US307639
申请日：1989-02-07
申请人： Shigeru Imuro , Yoshio Morimoto , Takashi Kitamura
发明人： Shigeru Imuro , Yoshio Morimoto , Takashi Kitamura
CPC分类号： C07C37/20
摘要： In a process for producing bisphenol A by reacting phenol and acetone in the presence of hydrochloric acid as a catalyst, the improvement comprising adding the water-containing phenol separated from the reaction product mixture in the purification stage to the reaction mixture containing phenol and acetone, in such an amount that the water content in the reaction mixture is within the range of 1 to 5 wt%, said water-containing phenol being obtained from the dehydrochlorination step of the reaction product mixture, condensing the distilled off gases and liquid-separating of the condensates.
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公开(公告)号：US4931146A
公开(公告)日：1990-06-05
申请号：US329867
申请日：1989-03-28
IPC分类号： C07C37/70
CPC分类号： C07C37/70
摘要： A process for obtaining high-purity bisphenol A by removing most part of phenol from an adduct of bisphenol A with phenol and removing continously the residual phenol by steam stripping, wherein a multi-tubular packed column is used as a stripping equipment. The residual phenol in bisphenol A can be removed constantly. In addition, the process of the present invention is economical because the residual phenol can be removed with a small amount of steam.
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公开(公告)号：US4798654A
公开(公告)日：1989-01-17
申请号：US184181
申请日：1988-04-21
CPC分类号： C07C37/74 , Y10S203/09
摘要： This invention relates to a process for preparing 2,2-bis(4-hydroxyphenyl)propane, e.g. bisphenol A and particularly to a process for preparing high quality bisphenol A with good workability by distilling the intermediate adduct of bisphenol A and phenol.The adduct of bisphenol A and phenol is fed to a distillation column. Phenol is recovered from the top of the column and bisphenol A is obtained from its bottom. In this distillation process, the adduct of bisphenol A and phenol is added with a part of recycled bottom liquid. Consequently troubles such as plugging of the distillation column are prevented, continuous operation becomes possible for a long period of time and high quality bisphenol A can be steadily obtained.
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7.发明授权Process for preparing 2-(4'-hydroxyaryl)-2-(4'-aminoaryl)-propanes 失效制备2-（4'-羟基芳基）-2-（4'-氨基芳基） - 丙烷的方法
公开(公告)号：US4374272A
公开(公告)日：1983-02-15
申请号：US92175
申请日：1979-11-07
申请人： Teruo Yuasa , Noboru Yamazaki , Yoshio Morimoto
发明人： Teruo Yuasa , Noboru Yamazaki , Yoshio Morimoto
IPC分类号： C07C215/74 , B01J27/00 , B01J31/00 , C07C20060101 , C07C67/00 , C07C213/00 , C07C213/08 , C07C219/34 , C07C225/22 , C07C255/59 , C07C87/64
CPC分类号： C07C213/08
摘要： A process for preparing 2-(4'-hydroxyaryl)-2-(4'-aminoaryl)-propanes of the general formula ##STR1## wherein R represents a hydrogen or halogen atom or an alkyl, aryl, nitro, nitrile, acyl, acyloxy or amino group, R.sup.1 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and R.sup.2 and R.sup.3, independently from each other, represent a hydrogen or halogen atom, a nitro group or an alkyl group having 1 to 4 carbon atoms,which comprises reacting (A) at least one isopropenyl phenol compound selected from the group consisting of isopropenyl phenol derivatives of the general formula ##STR2## wherein R is as defined, and di- to eicosa-mers of said isopropenyl phenol derivatives with (B) an aromatic amine of the general formula ##STR3## wherein R.sup.1 , R.sup.2 and R.sup.3 are as defined, in the presence of 0.00001 to 0.008 mole, per mole of said isopropenylphenol compound (A) calculated as a monomer, of a acid catalyst and in the presence or absence of a phenolic solvent.
摘要翻译： 制备通式为（III）的2-（4'-羟基芳基）-2-（4'-氨基芳基） - 丙烷的方法，其中R表示氢或卤素原子或烷基，芳基，硝基，腈 ，酰基，酰氧基或氨基，R 1表示氢原子或碳原子数1〜4的烷基，R 2和R 3彼此独立地表示氢或卤素原子，硝基或具有1个 包括使（A）至少一种选自下列通式的异丙烯基苯酚衍生物（I）中的R定义的异丙烯基苯酚化合物与（A）至少一种异丙烯基苯酚化合物的反应，和 所述异丙烯基苯酚衍生物与（B）通式为其中R 1，R 2和R 3如所定义的芳族胺在0.00001至0.008摩尔存在下，每摩尔所述异丙烯基苯酚化合物（A）计算得到的 作为单体，由酸催化剂和酚类溶剂存在或不存在。
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公开(公告)号：US4028481A
公开(公告)日：1977-06-07
申请号：US385665
申请日：1973-08-06
申请人： Tetsunosuke Shiomura , Akiro Ito , Yoshio Morimoto , Tetsuya Iwao
发明人： Tetsunosuke Shiomura , Akiro Ito , Yoshio Morimoto , Tetsuya Iwao
CPC分类号： C08F10/00 , Y10S526/906
摘要： In the polymerization of .alpha.-olefins, a titanium trichloride containing catalyst activated by copulverization with at least one additive selected fromI. an organic compound containing oxygen, sulfur or phosphorus such as:A. Organic oxygen compounds selected from ethers, ketones and esters;B. Organic sulfur compounds selected from thioethers, thiophenols and thioalcohols; andC. Organic phosphorus compounds.Ii. an organic compound of (I) containing oxygen, sulfur or phosphorus in combination with an aluminum halide, andIii. a complex or reaction product of an organic compound of (I) with an aluminum halide.Provides substantially improved catalytic activity and reduces amorphous polymeric by-products while enhancing stereoregularity. The catalytic activity of these catalysts is further enhanced by washing with an organic solvent subsequent to copulverization to remove excess additive. Preferred catalysts are those which contain aluminum chloride with the titanium trichloride. The aluminum trichloride may be provided as an integral part of the titanium trichloride, in admixture therewith, in admixture with the additive as a complex with one or more of the additives, as a reaction product of one or more of the additives or any combination of the above.
摘要翻译： 在α-烯烃的聚合中，含有通过与至少一种选自I的添加剂共混而活化的含三氯化钛的催化剂。含有氧，硫或磷的有机化合物如：
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9.发明授权
公开(公告)号：US3985818A
公开(公告)日：1976-10-12
申请号：US520151
申请日：1974-11-01
CPC分类号： C07C2/04 , C07C2531/10
摘要： Unsaturated dimers which contain 2,4-diphenyl-4-methyl-1-pentene as their main component (i.e., in an amount of greater than 95%) are produced by reacting an .alpha.-methylstyrene at a temperature of from 20.degree. to 100.degree.C. in the presence of a sulfonic acid type cation-exchange resin catalyst and in the further presence of a primary or secondary monohydric alcohol containing from 2 to 5 carbon atoms. By this reaction, side products including a saturated dimer of 1,1,3-trimethyl-3-phenylindane, trimers and higher polymers are produced only in an extremely small amount. The unsaturated dimers are very useful as a molecular weight modifier when employed, instead of dodecylmercaptans, for the production of polymers such as an ABS resin, an AS resin, and the like.
摘要翻译： 含有2,4-二苯基-4-甲基-1-戊烯作为其主要成分的不饱和二聚体（即，大于95％的量）通过α-甲基苯乙烯在20℃至100℃的温度下反应 在磺酸型阳离子交换树脂催化剂的存在下进一步存在，并且在另外存在含有2至5个碳原子的伯或仲一元醇的情况下。 通过该反应，仅产生极少量的包含1,1,3-三甲基-3-苯基二氢茚的饱和二聚体，三聚体和更高级聚合物的副产物。 作为分子量调节剂，当使用不饱和二聚体代替十二烷基硫醇，用于生产聚合物如ABS树脂，AS树脂等时是非常有用的。
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10.发明授权
公开(公告)号：US4942265A
公开(公告)日：1990-07-17
申请号：US276809
申请日：1988-11-28
CPC分类号： C07C39/16
摘要： The process for preparing 2,2-bis(4-hydroxyphenyl)propane (bisphenol A) by reacting acetone with phenol and decomposing the resultant adduct of bisphenol A and phenol is well known. However, the quality of bisphenol A thus obtained is not always satisfactory.In the process of this invention, the adduct is washed with phenol recovered by decomposing an adduct of bisphenol A and phenol, and then bisphenol A is prepared by decomposing the washed adduct.The bisphenol A prepared by the process of this invention has an extremely high quality and is suitable for the preparation of polycarbonate used for optical parts.
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