Method for producing glycolic acid

    公开(公告)号:US08956837B2

    公开(公告)日:2015-02-17

    申请号:US13330383

    申请日:2011-12-19

    摘要: Provided is a production method of glycolic acid having a first step of preparing glycolonitrile from formaldehyde and hydrocyanic acid and a second step of hydrolyzing the glycolonitrile into glycolic acid directly or via a glycolate salt, which method can produce glycolic acid in easy production and purification steps while consuming less energy. In the production method, by carrying out the first and second steps continuously or by storing the glycolonitrile obtained in the first step at pH 4 or less and carrying out a hydrolysis reaction of the second step at from pH 5 to 9, a production yield of glycolic acid, activity for the production of glycolic acid and accumulated concentration of glycolic acid are improved, resulting in the production of glycolic acid having an improved purity and quality.

    METHODS FOR PRODUCING AQUEOUS DIAMINE DICARBOXYLIC ACID SALT SOLUTION AND POLYAMIDE
    3.
    发明申请
    METHODS FOR PRODUCING AQUEOUS DIAMINE DICARBOXYLIC ACID SALT SOLUTION AND POLYAMIDE 审中-公开
    生产水性二胺二羧酸盐溶液和聚酰胺的方法

    公开(公告)号:US20130085257A1

    公开(公告)日:2013-04-04

    申请号:US13703508

    申请日:2011-06-23

    IPC分类号: C08G69/26

    摘要: A method for producing an aqueous diamine dicarboxylic acid salt solution according to the present invention comprises a step of mixing a dicarboxylic acid diester and a diamine, wherein a mixing molar ratio of the diamine to the dicarboxylic acid diester (diamine/dicarboxylic acid diester) is 1.005 or more. In addition, a method for producing a polyamide according to the present invention comprises a step of mixing a dicarboxylic acid diester and a diamine and heating the formed aqueous diamine dicarboxylic acid salt solution to perform a polycondensation reaction of the diamine and a dicarboxylic acid, wherein a mixing molar ratio of the diamine to the dicarboxylic acid diester (diamine/dicarboxylic acid diester) is 1.005 or more.

    摘要翻译: 根据本发明的二胺二羧酸盐水溶液的制备方法包括将二羧酸二酯与二胺混合的步骤,其中二胺与二羧酸二酯(二胺/二羧酸二酯)的混合摩尔比为 1.005以上。 此外,根据本发明的聚酰胺的制造方法包括将二羧酸二酯和二胺混合并加热所形成的二胺二羧酸盐溶液进行二胺和二羧酸的缩聚反应的步骤,其中 二胺与二羧酸二酯(二胺/二羧酸二酯)的混合摩尔比为1.005以上。

    Method for producing glycolic acid
    4.
    发明授权
    Method for producing glycolic acid 有权
    乙醇酸生产方法

    公开(公告)号:US08106238B2

    公开(公告)日:2012-01-31

    申请号:US11921072

    申请日:2006-05-25

    IPC分类号: C07C59/00

    摘要: Provided is a production method of glycolic acid having a first step of preparing glycolonitrile from formaldehyde and hydrocyanic acid and a second step of hydrolyzing the glycolonitrile into glycolic acid directly or via a glycolate salt, which method can produce glycolic acid in easy production and purification steps while consuming less energy. In the production method, by carrying out the first and second steps continuously or by storing the glycolonitrile obtained in the first step at pH 4 or less and carrying out a hydrolysis reaction of the second step at from pH 5 to 9, a production yield of glycolic acid, activity for the production of glycolic acid and accumulated concentration of glycolic acid are improved, resulting in the production of glycolic acid having an improved purity and quality.

    摘要翻译: 本发明提供了一种乙醇酸的制备方法,其具有由甲醛和氢氰酸制备乙醇腈的第一步骤,第二步是直接或通过乙醇酸盐将乙醇腈水解成乙醇酸,该方法可以在容易的生产和纯化步骤中生产乙醇酸 同时消耗更少的能量。 在制造方法中,通过连续进行第一和第二工序,或者将第一工序中得到的乙醇腈的pH保持在4以下,进行pH5〜9的第二工序的水解反应, 乙醇酸,乙醇酸的生成活性和乙醇酸的累积浓度得到改善,导致纯度和质量提高的乙醇酸的生产。

    Imaging system, image data stream creation apparatus, image generation apparatus, image data stream generation apparatus, and image data stream generation system
    5.
    发明申请
    Imaging system, image data stream creation apparatus, image generation apparatus, image data stream generation apparatus, and image data stream generation system 审中-公开
    成像系统,图像数据流创建装置,图像生成装置,图像数据流生成装置和图像数据流生成系统

    公开(公告)号:US20050219642A1

    公开(公告)日:2005-10-06

    申请号:US11083006

    申请日:2005-03-18

    IPC分类号: H04N5/335 G06F15/00 H04N1/40

    CPC分类号: H04N5/335 H04N5/23245

    摘要: An imaging system that is capable of generating high resolution and high frame rate video includes of a beam splitter, two lenses, a high resolution-low frame rate camera, and a low resolution-high frame rate camera. The beam splitter reflects a part of an incident ray. The two lenses gather the ray reflected from the beam splitter and the ray penetrating the beam splitter, respectively. The low resolution-high frame rate camera is a sensor that takes an image of the ray gathered by one of the lenses at a low resolution and a high frame rate. The high resolution-low frame rate camera is a sensor that takes an image of the ray gathered by the other of the lenses at a high resolution and a low frame rate.

    摘要翻译: 能够产生高分辨率和高帧速率视频的成像系统包括分束器,两个透镜,高分辨率低帧率相机和低分辨率高帧率相机。 分束器反射入射光线的一部分。 两个镜头分别收集从分束器反射的射线和穿过分束器的射线。 低分辨率高帧率相机是以低分辨率和高帧率拍摄由其中一个透镜收集的光线的图像的传感器。 高分辨率低帧率相机是以高分辨率和低帧速率拍摄由另一个透镜收集的光线的图像的传感器。

    Process for producing a cyclic aliphatic oxime
    6.
    发明授权
    Process for producing a cyclic aliphatic oxime 有权
    环状脂肪族肟的制造方法

    公开(公告)号:US06930204B2

    公开(公告)日:2005-08-16

    申请号:US10468890

    申请日:2002-02-26

    IPC分类号: C07C249/04 C07C251/44

    摘要: Disclosed is a method for producing a cyclic aliphatic oxime, which comprises subjecting a cyclic aliphatic primary amine to oxidation in the liquid phase under superatmospheric pressure in the presence of molecular oxygen and a solid catalyst, wherein the solid catalyst comprises an oxide of at least one metal (a) selected from the group consisting of metals belonging to Groups 5 and 6 of the Periodic Table.

    摘要翻译: 公开了一种环状脂肪族肟的制造方法,其特征在于,在分子氧和固体催化剂存在下,使环状脂肪族伯胺在液相中在超大气压下进行氧化,其中固体催化剂含有至少一种 选自属于周期表第5和第6组的金属的金属(a)。

    Process for producing carbonic ester
    7.
    发明申请
    Process for producing carbonic ester 有权
    生产碳酸酯的方法

    公开(公告)号:US20050080274A1

    公开(公告)日:2005-04-14

    申请号:US10495451

    申请日:2002-12-27

    IPC分类号: C07C68/04 C07C68/08 C07C69/96

    CPC分类号: C07C68/08 C07C68/04 C07C69/96

    摘要: A method for producing a carbonic ester, comprising (1) performing a reaction between an organometal compound having a metal-oxygen-carbon linkage and carbon dioxide to obtain a reaction mixture containing a carbonic ester formed by the reaction, (2) separating the carbonic ester from the reaction mixture to obtain a residual liquid, and (3) reacting the residual liquid with an alcohol to form an organometal compound having a metal-oxygen-carbon linkage and form water and removing the water from the organometal compound, wherein the organometal compound obtained in step (3) is recovered for recycle thereof to step (1).

    摘要翻译: 一种碳酸酯的制造方法,其特征在于,含有(1)在具有金属 - 碳 - 碳键的有机金属化合物与二氧化碳之间进行反应,得到含有通过该反应形成的碳酸酯的反应混合物,(2) 酯,从而获得残留液体,(3)使残余液体与醇反应形成具有金属 - 氧 - 碳键的有机金属化合物并形成水并从有机金属化合物中除去水,其中有机金属 回收步骤(3)中得到的化合物,再循环到步骤(1)。

    High-rigidity oxymethylene polymer resin molding
    8.
    发明授权
    High-rigidity oxymethylene polymer resin molding 有权
    高刚性甲醛聚合物树脂成型

    公开(公告)号:US6130280A

    公开(公告)日:2000-10-10

    申请号:US331784

    申请日:1999-06-25

    IPC分类号: C08G2/18 C08L59/04 C08K3/38

    摘要: An oxymethylene polymer resin shaped article having high flexural modulus, which is produced by molding an oxymethylene polymer resin, wherein the oxymethylene polymer resin is selected from the group consisting of an oxymethylene homopolymer resin, an oxymethylene copolymer resin and a mixture thereof. The oxymethylene copolymer resin comprises a copolymer of an oxymethylene monomer and a comonomer copolymerizable therewith, wherein the amount of the comonomer is extremely limited. The shaped article has the following characteristics: (1) a crystallinity of 72% or more; (2) an average crystallite size of 150 .ANG. or more; (3) 70% by volume or more of the whole volume of the shaped article being comprised of spherulites each having a diameter of 60 .mu.m or less; and (4) a thickness of 1 mm or more. The oxymethylene polymer resin shaped article of the present invention has an improved crystal structure, and exhibits excellent mechanical properties including especially high flexural modulus even when containing very little or no reinforcement. The oxymethylene polymer resin shaped article of the present invention can be advantageously used not only as a material for a sliding part and a precision part, such as a gear, a bearing and a lever, but also as a material for electric and electronic parts, such as a connector, a socket and a switch.

    摘要翻译: PCT No.PCT / JP97 / 04860 Sec。 371日期1999年6月25日第 102(e)日期1999年6月25日PCT 1997年12月25日PCT公布。 第WO98 / 29483号公报 日期:1998年7月9日,通过模塑甲醛聚合物树脂制备具有高挠曲模量的甲醛聚合物树脂成型制品,其中甲醛聚合物树脂选自甲醛均聚物树脂,甲醛共聚物树脂和混合物 其中。 甲醛共聚物树脂包含甲醛单体和可与其共聚的共聚单体的共聚物,其中共聚单体的量非常有限。 成型制品具有以下特征:(1)72%以上的结晶度; (2)平均微晶尺寸为150以上; (3)成型制品的整个体积的70体积%以上,由直径为60μm以下的球晶构成; 和(4)1mm以上的厚度。 本发明的甲醛聚合物树脂成型制品具有改进的晶体结构,并且即使在极少或不加强时也显示出优异的机械性能,包括特别高的挠曲模量。 本发明的甲醛聚合物树脂成型体不仅可以有利地用作滑动部件和齿轮,轴承和杠杆等精密部件的材料,而且可以用作电气和电子部件的材料, 例如连接器,插座和开关。

    Image processing apparatus and image processing method
    10.
    发明授权
    Image processing apparatus and image processing method 有权
    图像处理装置和图像处理方法

    公开(公告)号:US08773570B2

    公开(公告)日:2014-07-08

    申请号:US13390735

    申请日:2011-06-16

    IPC分类号: G02B13/16 H04N5/225

    摘要: An image processing apparatus includes an imaging unit which captures an image, and a focal range control unit which changes a focal position and a depth of field of a captured image by controlling an imaging device or a focus lens in the imaging unit. Further, the image processing apparatus includes a distance measurement unit which measures a distance to a subject, from a degree of blur in each of n images (where n ≧2) captured by the imaging unit controlled by the focal range control unit and having focal ranges different from each other.

    摘要翻译: 图像处理装置包括拍摄图像的成像单元和通过控制成像单元中的成像装置或聚焦透镜来改变拍摄图像的焦点位置和景深的焦距范围控制单元。 此外,图像处理装置包括距离测量单元,该距离测量单元从由焦距范围控制单元控制的成像单元拍摄的n个图像(其中n≥2)中的每一个中的模糊度测量到被摄体的距离,并且具有焦点 范围彼此不同。