公开(公告)号：US5219984A

公开(公告)日：1993-06-15

申请号：US835077

申请日：1992-02-18

申请人： Shigemi Shiraki ,  Yasuhiro Tanaka ,  Masayuki Sakai

发明人： Shigemi Shiraki ,  Yasuhiro Tanaka ,  Masayuki Sakai

摘要： According to the present invention, a process which comprises bringing polyethylene terephthalate having an intrinsic viscosity of at least 0.50 dl/g and a density of 1.38 g/cm.sup.3 or more into contact with water is provided.In the water-treated polyethylene terephthalate obtained in the present invention, amounts of oligomers and acetaldehyde formed at the time of molding said polyethylene terephthalate into molded articles are small, and the contamination of the mold therewith is difficult to occur and further the contents of said molded articles does not change in flavor and fragrance.

公开(公告)号：US4241220A

公开(公告)日：1980-12-23

申请号：US973944

申请日：1978-12-28

申请人： Shikiho Itaya ,  Takenori Nagaoka ,  Teruo Itoh ,  Yukimasa Shigemura ,  Shigemi Shiraki

发明人： Shikiho Itaya ,  Takenori Nagaoka ,  Teruo Itoh ,  Yukimasa Shigemura ,  Shigemi Shiraki

IPC分类号： C07C51/265 ,  C07C51/47 ,  C07C51/16

CPC分类号： C07C51/265 ,  C07C51/47

摘要： Improved process for producing terephthalic acid by liquid-phase catalytic oxidation of p-xylene with oxygen at a temperature of at least about 160.degree. C. and a pressure of at least about 5 kg/cm.sup.2 G under specific recycling condition of the mother liquor, which comprises(A) performing said liquid-phase catalytic oxidation at a temperature (T) within the range of about 170.degree. C. to about 230.degree. C. to form an oxidation reaction mixture containing crude terephthalic acid having a 4-carboxybenzaldehyde content of 500 to 3,000 ppm and an optical density, measured at 340 m.mu., of not more than 0.3,(B) separating about 60 to about 98% by weight of the total mother liquor from the resulting oxidation reaction mixture at a temperaure of from (T-30).degree. C. to (T+10).degree. C., and recycling the separated mother liquor to the oxidation zone,(C) adding hot acetic acid to the remainder of the oxidation reaction mixture so that the weight ratio of acetic acid to crude terephthalic acid in the product is 2:1 to 10:1 to form a suspension of the crude terephthalic acid in acetic acid kept at a temperature ranging from the reaction temperature (T) to about 240.degree. C.,(D) stirring the suspension at a temperature of from T.degree.C. to about 240.degree. C. to perform a primary leaching treatment,(E) stirring the treated suspension at a temperature of 150.degree. C. to about 220.degree. C., said temperature being at least 10.degree. C. lower than the temperature of the primary leaching treatment, thereby to perform a secondary leaching treatment, and(F) recovering terephthalic acid from the suspension subjected to the secondary leaching treatment.

摘要翻译： 通过在母液的特定回收条件下，在至少约160℃的温度和至少约5kg / cm2G的压力下用氧气对对二甲苯进行液相催化氧化来生产对苯二甲酸的改进方法，其中 包括（A）在约170℃至约230℃的温度（T）下进行所述液相催化氧化以形成含有4-羧基苯甲醛含量为500的粗对苯二甲酸的氧化反应混合物 在340μm下测量的不大于0.3的光密度（B），从（T）的温度从所得氧化反应混合物中分离出约60至约98重量％的总母液 -30℃〜（T + 10℃），并将分离出的母液再循环至氧化区，（C）将热乙酸加入余下的氧化反应混合物中，使乙酸 对生产中的粗对苯二甲酸 2:1至10:1，以形成保持在反应温度（T）至约240℃的温度范围内的粗对苯二甲酸在乙酸中的悬浮液，（D）在温度为 从T℃至约240℃进行初级浸提处理，（E）在150℃至220℃的温度下搅拌处理的悬浮液，所述温度为至少10℃ 比第一浸出处理的温度高，从而进行二次浸出处理，（F）从进行二次浸出处理的悬浮液中回收对苯二甲酸。

公开(公告)号：US5166420A

公开(公告)日：1992-11-24

申请号：US784604

申请日：1991-10-24

申请人： Shigemi Shiraki ,  Kenichi Mizuno

发明人： Shigemi Shiraki ,  Kenichi Mizuno

IPC分类号： C07C51/487

CPC分类号： C07C51/487

摘要： A process for the production of high purity terephthalic acid, by subjecting a crude terephthalic acid product, resulting from the oxidation of a paradialkylbenzene and containing a 4-carboxybenzaldehyde and other impurities at a relatively high level, to an efficient purification with high yield of terephthalic acid. This process comprises subjecting a high temperature aqueous solution of the crude terephthalic acid product to (A) an oxidation treatment with an oxygen-containing gas while feeding oxygen at a feed rate in the range of 0.4-10 moles per mole of the 4-carboxylbenzaldehyde contained in the crude terephthalic acid and then to (B) a treatment with hydrogen.

摘要翻译： 生产高纯度对苯二甲酸的方法是将由对二烷基苯氧化并含有较高水平的4-羧基苯甲醛和其它杂质的粗对苯二甲酸产物经高效纯化得到高对苯二甲酸 酸。 该方法包括使粗对苯二甲酸产物的高温水溶液（A）用含氧气体进行氧化处理，同时以每摩尔4-羧基苯甲醛0.4-100摩尔范围内的进料速率供给氧气 包含在粗对苯二甲酸中，然后到（B）用氢处理。

公开(公告)号：US4827025A

公开(公告)日：1989-05-02

申请号：US97800

申请日：1987-09-16

申请人： Shigemi Shiraki ,  Kenichi Mizuno

发明人： Shigemi Shiraki ,  Kenichi Mizuno

IPC分类号： B01J27/08 ,  B01J19/18 ,  B01J27/00 ,  C07B61/00 ,  C07C51/00 ,  C07C51/265 ,  C07C63/00 ,  C07C63/14 ,  C07C63/26 ,  C07C67/00

CPC分类号： C07C51/265 ,  B01J19/18 ,  B01J2219/00108 ,  B01J2219/0011

摘要： A process for the production of aromatic carboxylic acid in a continuous manner by oxidizing an alkyl aromatic compound in the liquid phase with an oxygen-containing gas in the presence of heavy metal compound(s) and/or bromine-containing compound, which process is characterized by that a part of the reaction gas delivered from the reactor and freed from the condensing components is recirculated by returning it to the reactor at a portion within the gas region. Said process permits to produce aromatic carboxylic acids of high quality, while eliminating the troubles due to foaming occurring on the liquid surface in the reactor.

摘要翻译： 一种通过在重金属化合物和/或含溴化合物的存在下用含氧气体氧化液相中的烷基芳族化合物来连续生产芳族羧酸的方法，该方法是 其特征在于，从反应器输送并从冷凝组分中排出的一部分反应气体通过在气体区域内的一部分返回到反应器而再循环。 所述方法允许产生高质量的芳族羧酸，同时消除由于在反应器中的液体表面上发生的起泡而引起的麻烦。

公开(公告)号：US5272235A

公开(公告)日：1993-12-21

申请号：US665478

申请日：1991-03-06

申请人： Kenji Wakatsuru ,  Takehiko Kawate ,  Shigemi Shiraki ,  Toshihiro Sagane ,  Shuji Minami ,  Masayuki Okabe ,  Ryosuke Tomita ,  Hideaki Yamaguchi

发明人： Kenji Wakatsuru ,  Takehiko Kawate ,  Shigemi Shiraki ,  Toshihiro Sagane ,  Shuji Minami ,  Masayuki Okabe ,  Ryosuke Tomita ,  Hideaki Yamaguchi

IPC分类号： C08F210/02 ,  C08F232/08 ,  G11B7/243 ,  G11B7/253 ,  G11B7/2533 ,  G11B7/2538 ,  G11B7/257 ,  G11B7/2578 ,  G11B7/258 ,  G11B7/2585 ,  C08F232/04 ,  C08F2/06

CPC分类号： C08F232/08 ,  C08F210/02 ,  G11B7/2538 ,  G11B2007/24304 ,  G11B7/2533 ,  G11B7/2578 ,  G11B7/2585

摘要： In accordance with the present invention, there are provided cycloolefin random copolymers composed of ethylene and cycloolefin and containing substantially no polyethylene, and processes for preparing the same. Optical disc substrates prepared from the above-mentioned copolymers are excellent in transparency and also capable of minimizing the occurence of errors in reading of the discs due to quality of the substrates used therefor.

公开(公告)号：US5270444A

公开(公告)日：1993-12-14

申请号：US32169

申请日：1993-03-12

申请人： Shigemi Shiraki ,  Yasuhiro Tanaka ,  Masayuki Sakai

发明人： Shigemi Shiraki ,  Yasuhiro Tanaka ,  Masayuki Sakai

IPC分类号： C08G63/183 ,  C08G63/80 ,  C08G63/85 ,  C08G63/90 ,  C08J3/00

CPC分类号： C08G63/80 ,  C08G63/183 ,  C08G63/85 ,  C08G63/90

摘要： According to the present invention, a process which comprises bringing polyethylene terephthalate having an intrinsic viscosity of at least 0.50 dl/g and a density of 1.38 g/cm.sup.3 or more into contact with water is provided.In the water-treated polyethylene terephthalate obtained in the present invention, amounts of oligomers and acetaldehyde formed at the time of molding said polyethylene terephthalate into molded articles are small, and the contamination of the mold therewith is difficult to occur and further the contents of said molded articles does not change in flavor and fragrance.

摘要翻译： 根据本发明，提供了将特性粘度为至少0.50dl / g，密度为1.38g / cm 3以上的聚对苯二甲酸乙二醇酯与水接触的方法。 在本发明中得到的水处理聚对苯二甲酸乙二醇酯中，将成型所述聚对苯二甲酸乙二醇酯时所形成的低聚物和乙醛的量变少，成型品难以发生模具污染， 模制品的味道和香味不变。

公开(公告)号：US5256363A

公开(公告)日：1993-10-26

申请号：US985752

申请日：1992-12-04

申请人： Mikio Hashimoto ,  Hiroji Niimi ,  Tadao Yatsu ,  Shigemi Shiraki

发明人： Mikio Hashimoto ,  Hiroji Niimi ,  Tadao Yatsu ,  Shigemi Shiraki

IPC分类号： C08G63/672 ,  B29C45/14

CPC分类号： C08G63/672

摘要： Polyethylene terephthalates of the present invention are excellent in mechanical strength, heat resistance and transparency, and therefore blow molded containers molded from the present polyethylene terephthalate are excellent in high temperature filling properties when they are filled with juice, refrigerant beverage, carbonated beverage, seasonings, etc. Furthermore, the blow molded containers prepared from the present polyethylene terephthalates have such characteristic features that they are free from thermal deformation at the time when they are subjected to high temperature filling, they are readily subjected to sterilization treatment and hence excellent in high speed filling properties.

摘要翻译： 本发明的聚对苯二甲酸乙二醇酯具有优异的机械强度，耐热性和透明性，因此由本发明的聚对苯二甲酸乙二醇酯成型的吹塑容器在充满果汁，制冷剂饮料，碳酸饮料，调味料， 此外，由本发明的聚对苯二甲酸乙二醇酯制备的吹塑容器具有这样的特征，即当它们进行高温填充时它们不会发生热变形，因此容易进行灭菌处理，因此高速度 填充性能。

公开(公告)号：US5241046A

公开(公告)日：1993-08-31

申请号：US835077

申请日：1992-02-18

申请人： Shigemi Shiraki ,  Yasuhiro Tanaka ,  Masayuki Sakai

发明人： Shigemi Shiraki ,  Yasuhiro Tanaka ,  Masayuki Sakai

IPC分类号： C08G63/183 ,  C08G63/80 ,  C08G63/85 ,  C08G63/90

CPC分类号： C08G63/90 ,  C08G63/183 ,  C08G63/80 ,  C08G63/85

摘要： According to the present invention, a process which comprises bringing polyethylene terephthalate having an intrinsic viscosity of at least 0.50 dl/g and a density of 1.38 g/cm.sup.3 or more into contact with water is provided.In the water-treated polyethylene terephthalate obtained in the present invention, amounts of oligomers and acetaldehyde formed at the time of molding said polyethylene terephthalate into molded articles are small, and the contamination of the mold therewith is difficult to occur and further the contents of said molded articles does not change in flavour and fragrance.

摘要翻译： 根据本发明，提供了将特性粘度为至少0.50dl / g，密度为1.38g / cm 3以上的聚对苯二甲酸乙二醇酯与水接触的方法。 在本发明中得到的水处理聚对苯二甲酸乙二醇酯中，将成型所述聚对苯二甲酸乙二醇酯时所形成的低聚物和乙醛的量变少，成型品难以发生模具污染， 模制品的味道和香味不变。

公开(公告)号：US4383093A

公开(公告)日：1983-05-10

申请号：US270092

申请日：1981-06-03

申请人： Shigemi Shiraki ,  Saiji Nakano

发明人： Shigemi Shiraki ,  Saiji Nakano

IPC分类号： B01F7/00 ,  B01F7/08 ,  B01F15/00 ,  B01J8/10 ,  B01J19/20 ,  C08F2/00 ,  C08F2/34 ,  C08F10/00

CPC分类号： B01F7/00408 ,  B01F7/08 ,  B01F7/087 ,  B01J19/20 ,  C08F10/00 ,  Y10S526/901

摘要： A tubular polymerization reactor comprising a feed opening for a polymerizable material at one end portion, a withdrawal opening for the resultant polymer at the other end portion, a tubular reaction space within the reactor extending from said feed opening to said withdrawal opening, and a rotary conveying member disposed within the reaction space and extending therealong with some clearance from the inner wall surface of the polymerization reactor; characterized in that(i) the length-to-diameter ratio of the tubular reaction space is about 20 or more, and(ii) the rotary conveying member is of a tubular coil-like shape;and a process for polymerization using the aforesaid tubular polymerization reactor.

摘要翻译： 一种管状聚合反应器，包括在一个端部处用于可聚合材料的进料口，在另一端部形成所得聚合物的抽出口，反应器内从所述进料口延伸到所述抽出口的管状反应空间， 输送构件，其设置在所述反应空间内并以与所述聚合反应器的内壁表面一定间隙的方式延伸; 其特征在于，（i）管状反应空间的长径比为约20以上，（ii）旋转输送构件为管状线圈状， 和使用上述管状聚合反应器的聚合方法。

公开(公告)号：US4243636A

公开(公告)日：1981-01-06

申请号：US10914

申请日：1979-02-09

申请人： Shigemi Shiraki ,  Ryoichi Yamamoto

发明人： Shigemi Shiraki ,  Ryoichi Yamamoto

IPC分类号： C07C63/26 ,  B01F3/04 ,  B01F7/00 ,  B01F7/18 ,  B01F15/00 ,  B01J14/00 ,  B01J19/00 ,  B01J19/18 ,  B01J31/00 ,  C07C51/00 ,  C07C51/265 ,  C07C67/00 ,  B01F7/16 ,  C07C51/16

CPC分类号： B01F3/04531 ,  B01F7/186 ,  B01J19/006 ,  B01J19/0066 ,  B01J19/18 ,  C07C51/265 ,  B01F15/00883 ,  B01F7/00558 ,  B01F7/00641 ,  B01J2219/00101 ,  B01J2219/00768 ,  B01J2219/00779 ,  B01J2219/185

摘要： In an apparatus for oxidizing an alkyl-substituted aromatic compound in the liquid phase with a molecular oxygen-containing gas in a lower aliphatic carboxylic acid solvent in the presence of an oxidation catalyst, said apparatus comprising a reaction vessel, a gas exhaust port at the top of the vessel, an inlet at the bottom of the vessel for feeding said molecular oxygen-containing gas, an inlet for feeding said solvent, an inlet for feeding said catalyst, an inlet for feeding said alkyl-substituted aromatic compound, an outlet for withdrawing the oxidation reaction product, and an agitator within the vessel, said agitator consisting of a rotating shaft provided along the axial direction of the vessel and a plurality of stages of agitating blades secured to said rotating shaft at spaced intervals; the improvement wherein at least one stage of agitating blades consists of comb-like flat blades each of which is composed of a plurality of comb tooth-like pieces aligned at spaced intervals.

摘要翻译： 在氧化催化剂存在下，在低级脂肪族羧酸溶剂中，用分子氧气体在液相中氧化烷基取代的芳族化合物的装置中，所述装置包括反应容器， 容器的顶部，用于进料所述分子含氧气体的容器底部的入口，用于进料所述溶剂的入口，用于进料所述催化剂的入口，用于进料所述烷基取代的芳族化合物的入口，用于 抽出氧化反应产物和容器内的搅拌器，所述搅拌器由沿着容器的轴向设置的旋转轴组成，并且多个阶段的搅拌叶片以间隔的间隔固定到所述旋转轴; 改进之处在于，至少一个搅拌叶片由梳子状的扁平叶片组成，每个叶片由间隔间隔排列的多个梳齿状片组成。