Biodegradable aliphatic copolyester and method of preparing same
    1.
    发明授权
    Biodegradable aliphatic copolyester and method of preparing same 失效
    生物降解脂肪族共聚酯及其制备方法

    公开(公告)号:US06180751B2

    公开(公告)日:2001-01-30

    申请号:US09499518

    申请日:2000-02-10

    IPC分类号: C08G6348

    CPC分类号: C08G63/16 C08G63/20

    摘要: An aliphatic copolyester having a plurality of first: ester units of the formula: —CO—[R1]t—CO—O—R2—O— wherein R1 represents a divalent aliphatic group, R2 represents a divalent aliphatic and t is an integer of 0 or 1, and a plurality of second ester units of the formula: wherein R1 and t are as defined above and R3 represents an aliphatic group. The molar ratio of the first ester unit to the second ester unit is 90:10 to 99.9:0.1. The copolyester is produced by reacting an aliphatic diester with an aliphatic glycol and with a monoacylated glycerin under ester exchanging conditions.

    摘要翻译: 具有多个下式的第一酯单元的脂族共聚酯:其中R1表示二价脂族基团,R2表示二价脂族基,t表示0或1的整数,以及多个下式的第二酯单元:其中 R 1和t如上所定义,R 3表示脂族基团。 第一酯单元与第二酯单元的摩尔比为90:10至99.9:0.1。 共聚多酯是通过脂肪族二酯与酯交换条件下的单酰化甘油反应制备的。

    7-substituted-2-oxa�3.2.0!heptan-6-one compound and method for the
preparation thereof
    4.
    发明授权
    7-substituted-2-oxa�3.2.0!heptan-6-one compound and method for the preparation thereof 失效
    7-取代-2-氧杂[3.2.0]庚-6-酮化合物及其制备方法

    公开(公告)号:US5700931A

    公开(公告)日:1997-12-23

    申请号:US654521

    申请日:1996-05-29

    CPC分类号: C07D491/04 A01N43/90

    摘要: Disclosed is a novel .beta.-lactam compound, a 7-substituted-2-oxa-7-azabicyclo�3.2.0!heptan-6-one represented by the general formula ##STR1## in which R is an alkyl, cycloalkyl, aryl, halogen-substituted aryl or alkaryl group, having usefulness as an intermediate for the synthesis of various biologically active compounds. The compound can be prepared by the reaction of an isocyanate compound RNCO, R being the same as above, and 2,3-dihydrofuran, preferably, under pressurization up to 2000 atmospheres or higher.

    摘要翻译: 公开了一种新的β-内酰胺化合物,由通式“IMAGE”表示的7-取代-2-氧杂-7-氮杂双环[3.2.0]庚-6-酮,其中R是烷基,环烷基,芳基, 卤素取代的芳基或烷芳基,其作为用于合成各种生物活性化合物的中间体具有有用性。 化合物可以通过异氰酸酯化合物RNCO,与上述相同的R和2,3-二氢呋喃的反应来制备,优选在加压至2000个大气压或更高的条件下进行。

    Method for the preparation of &bgr;-lactam compound
    5.
    发明授权
    Method for the preparation of &bgr;-lactam compound 失效
    β-内酰胺化合物的制备方法

    公开(公告)号:US06407228B1

    公开(公告)日:2002-06-18

    申请号:US08527217

    申请日:1995-09-12

    IPC分类号: C07D20508

    CPC分类号: C07D201/02 C07D205/08

    摘要: A simple and efficient method is proposed for the preparation of a &bgr;-lactam compound such as 1-phenyl-4-ethoxy-2-azetidinone which can be produced by mixing an isocyanate compound such as phenyl isocyanate and a vinyl ether compound such as ethyl vinyl ether and heating the mixture at a moderate temperature under a superatmospheric pressure of up to 12000 atmospheres.

    摘要翻译: 提出了一种制备β-内酰胺化合物如1-苯基-4-乙氧基-2-氮杂环丁酮的简单且有效的方法,其可以通过将异氰酸酯化合物如异氰酸苯酯和乙烯基醚化合物如乙基 乙烯基醚,并在中等温度下在高达12000个大气压的超大气压下加热该混合物。

    7-Substituted-2-oxa-7-azabicyclo [3.2.0.]heptan-6-one compound and
method for the preparation thereof
    6.
    发明授权
    7-Substituted-2-oxa-7-azabicyclo [3.2.0.]heptan-6-one compound and method for the preparation thereof 失效
    7-取代-2-氧杂-7-氮杂双环[3.2.0]庚-6-酮化合物及其制备方法

    公开(公告)号:US5550230A

    公开(公告)日:1996-08-27

    申请号:US396778

    申请日:1995-03-01

    CPC分类号: C07D491/04 A01N43/90

    摘要: Disclosed is a novel .beta.-lactam compound, a 7-substituted-2-oxa-7-azabicyclo[3.2.0]heptan-6-one represented by the general formula ##STR1## in which R is an alkyl, cycloalkyl, aryl, halogen-substituted aryl or alkaryl group, having usefulness as an intermediate for the synthesis of various biologically active compounds. The compound can be prepared by the reaction of an isocyanate compound RNCO, R being the same as above, and 2,3-dihydrofuran, preferably, under pressurization up to 2000 atmospheres or higher.

    摘要翻译: 公开了一种新的β-内酰胺化合物,由通式“IMAGE”表示的7-取代-2-氧杂-7-氮杂双环[3.2.0]庚-6-酮,其中R是烷基,环烷基,芳基, 卤素取代的芳基或烷芳基,其作为用于合成各种生物活性化合物的中间体具有有用性。 化合物可以通过异氰酸酯化合物RNCO,与上述相同的R和2,3-二氢呋喃的反应来制备,优选在加压至2000个大气压或更高的条件下进行。

    Method for the preparation of .beta.-ketothioamide compound
    7.
    发明授权
    Method for the preparation of .beta.-ketothioamide compound 失效
    β-酮硫代酰胺化合物的制备方法

    公开(公告)号:US5677444A

    公开(公告)日:1997-10-14

    申请号:US530402

    申请日:1995-09-15

    摘要: A novel and simple method is proposed for the synthetic preparation of an N,N-disubstituted .beta.-ketothioamide compound represented by the general formula R.sup.1 R.sup.2 N--CS--CH.sub.2 --CO--R.sup.3, in which R.sup.1 and R.sup.2 are each a monovalent hydrocarbon group or each a divalent hydrocarbon group jointly forming a cyclic structure together with the nitrogen atom and R.sup.3 is a hydrogen atom, a monovalent hydrocarbon group or a divalent hydrocarbon group forming a cyclic structure jointly with R.sup.1, R.sup.1 being a divalent hydrocarbon group and R.sup.2 being a monovalent hydrocarbon group. The method comprises:(a) mixing an N,N-disubstituted amide compound represented by the general formula R.sup.1 R.sup.2 N--CO--R.sup.3, and a bis(trialkylsilyl)thioketene compound represented by the general formula (R.sub.3 Si).sub.2 C.dbd.C.dbd.S, in which each R is an alkyl group, to effect an addition reaction therebetween forming an intermediate compound; and (b) dissolving the intermediate compound obtained in step (a) in an alcohol.

    摘要翻译: 提出了一种简单的方法,用于合成制备由通式R 1 R 2 N-CS-CH 2 -CO-R 3表示的N,N-二取代的β-酮硫代酰胺化合物,其中R 1和R 2各自是一价烃基, 二价烃基与氮原子一起形成环状结构,R 3为氢原子,一价烃基或二价烃基,与R 1一起形成环状结构,R 1为二价烃基,R 2为一价烃基 。 该方法包括:(a)将由通式R 1 R 2 N -CO-R 3表示的N,N-二取代酰胺化合物和由通式(R3Si)2C = C = S表示的双(三烷基甲硅烷基)硫代烯酮化合物混合,其中 每个R是烷基,以形成中间体化合物之间的加成反应; 和(b)将步骤(a)中获得的中间体化合物溶解在醇中。

    Method for the preparation of .beta.-thiolactam compound
    8.
    发明授权
    Method for the preparation of .beta.-thiolactam compound 失效
    β-硫代内酰胺化合物的制备方法

    公开(公告)号:US5585487A

    公开(公告)日:1996-12-17

    申请号:US613100

    申请日:1996-03-08

    CPC分类号: C07D493/04

    摘要: Disclosed is a method for the preparation of a .beta.-thiolactam compound, i.e. a 7-substituted-2-oxa-7-azabicyclo [3.2.0]-heptan-6-thione, represented by the general formula ##STR1## in which R is an alkyl or aryl group, having usefulness as an intermediate for the synthesis of various biologically active compounds. The compound can be prepared by the reaction of an isothiocyanate compound R--NCS, R being the same as above, and 2,3-dihydrofuran, preferably, under pressurization up to 2000 atmospheres or higher at an elevated temperature.

    摘要翻译: 公开了一种制备β-硫代内酰胺化合物的方法,即由通式“IMAGE”表示的7-取代-2-氧杂-7-氮杂双环[3.2.0]庚基-6-硫酮,其中R 是具有作为合成各种生物活性化合物的中间体的有用性的烷基或芳基。 该化合物可以通过异硫氰酸酯化合物R-NCS,与上述相同的R和2,3-二氢呋喃的反应制备,优选在高达2000℃或更高的加压下进行。

    Image coding apparatus and image coding method
    9.
    发明授权
    Image coding apparatus and image coding method 有权
    图像编码装置和图像编码方法

    公开(公告)号:US09066100B2

    公开(公告)日:2015-06-23

    申请号:US13602561

    申请日:2012-09-04

    申请人: Akihiro Oishi

    发明人: Akihiro Oishi

    摘要: At least one exemplary embodiment is directed to an image coding apparatus configured to encode moving image data including: a coding unit configured to encode each picture in the moving image data in a unit of a first block; a luminance change detection unit configured to divide the moving image data into a plurality of second blocks and to detect a luminance change block in which a luminance change occurred from the plurality of the second blocks in one picture; and a code amount adjustment unit configured to increase an amount of code allocated to the first block if the first block corresponds to the luminance change block detected by the luminance change detection unit.

    摘要翻译: 至少一个示例性实施例涉及被配置为对运动图像数据进行编码的图像编码装置,包括:编码单元,被配置为以第一块为单位对运动图像数据中的每个图像进行编码; 亮度变化检测单元,被配置为将运动图像数据划分成多个第二块,并且检测在一个图像中从多个第二块发生亮度变化的亮度变化块; 以及代码量调整单元,被配置为如果第一块对应于由亮度变化检测单元检测的亮度变化块,则增加分配给第一块的代码量。

    Signal processing apparatus
    10.
    发明授权
    Signal processing apparatus 有权
    信号处理装置

    公开(公告)号:US07720144B2

    公开(公告)日:2010-05-18

    申请号:US11123057

    申请日:2005-05-06

    申请人: Akihiro Oishi

    发明人: Akihiro Oishi

    IPC分类号: H04N7/12 G06K9/36

    摘要: An image signal processing apparatus for quantizing an inputted moving image signal according to a quantization step so that a code amount of one frame becomes a target code amount, and for variable-length-coding the quantized moving image signal, in which a minimum value of the quantization step is determined for each frame, and the quantization step is determined so as not to be less than the minimum value.

    摘要翻译: 一种图像信号处理装置,用于根据量化步长量化输入的运动图像信号,使得一帧的代码量成为目标代码量,并且对于量化的运动图像信号进行可变长度编码,其中最小值 为每个帧确定量化步长,并且量化步长被确定为不小于最小值。