公开(公告)号：US5070175A

公开(公告)日：1991-12-03

申请号：US706148

申请日：1991-05-28

申请人： Hiroshi Tsumura ,  Kiyoyuki Mutoh ,  Kazushi Satoh ,  Ken-ichi Isobe

发明人： Hiroshi Tsumura ,  Kiyoyuki Mutoh ,  Kazushi Satoh ,  Ken-ichi Isobe

IPC分类号： C08G77/02 ,  C08G77/06 ,  C08G77/08

CPC分类号： C08G77/08 ,  C08G77/06

摘要： An efficient and economically advantageous method is proposed for the preparation of an organopolysiloxane comprising tetrafunctional siloxane units, i.e. Q units, and, typically, monofunctional siloxy units, i.e. M units, and useful as a reinforcing agent in silicone rubbers. The method comprises the steps of: mixing the reactants for providing the Q and M units, such as ethyl orthosilicate and trimethyl methoxy silane, in a desired molar ratio; and heating the mixture at a temperature higher by at least 10.degree. C. than the boiling point of the mixture under normal pressure in a closed vessel in the presence of water and a catalyst such as a sulfonic acid group-containing compound. In addition to the greatly shortened reaction time and remarkably decreased contents of residual alkoxy groups and gelled matter in the product, the method is advantageous also in respect of the absence of the problems caused by the disposal of the waste water as well as the corrosiveness of hydrogen chloride unavoidably produced in the conventional prior art methods.

摘要翻译： 提出了一种有效和经济上有利的方法，用于制备包含四官能硅氧烷单元即Q单元的有机聚硅氧烷，通常为单官能甲硅烷氧基单元，即M单元，并且可用作硅橡胶中的增强剂。 该方法包括以下步骤：以所需的摩尔比混合反应物以提供Q和M单元，如原硅酸乙酯和三甲基甲氧基硅烷; 并且在水和催化剂如含磺酸基化合物的存在下，在密闭容器中，在常压下，比混合物的沸点高至少10℃的温度加热该混合物。 除了反应时间大大缩短，产物中残留的烷氧基和凝胶物含量显着降低之外，该方法在废水处理不存在的问题以及废水处理的腐蚀性方面也是有利的 在常规现有技术方法中不可避免地产生氯化氢。

公开(公告)号：US5241033A

公开(公告)日：1993-08-31

申请号：US805522

申请日：1991-12-13

申请人： Hiroshi Tsumura ,  Kiyoyuki Mutoh ,  Kazushi Satoh ,  Ken-ichi Isobe

发明人： Hiroshi Tsumura ,  Kiyoyuki Mutoh ,  Kazushi Satoh ,  Ken-ichi Isobe

IPC分类号： C08G77/06 ,  C08G77/08 ,  C08G77/22 ,  C08G77/32

CPC分类号： C08G77/08

摘要： A novel and efficient method is disclosed for decreasing the content of residual alkoxy groups in an organopolysiloxane such as so-called MQ resins, usually and unavoidably, having a considerable amount of residual alkoxy groups bonded to the silicon atoms to be very detrimental against practical application of the organopolysiloxane. The method comprises admixing the alkoxy-containing organopolysiloxane with a strongly alkaline compound such as alkali metal hydroxides as a catalyst, an aprotic polar solvent such as N,N-dimethyl formamide, dimethyl sulfoxide and the like and water each in a specified amount and heating the mixture, for example, under reflux so that the alkoxy groups are rapidly hydrolyzed and can be removed in the form of an alcohol.

摘要翻译： 公开了一种用于降低有机聚硅氧烷（例如所谓的MQ树脂）中残留的烷氧基的含量的新型和有效的方法，所述MQ树脂通常并且不可避免地具有与硅原子键合的相当量的残余烷氧基对实际应用非常有害 的有机聚硅氧烷。 该方法包括将含烷氧基的有机聚硅氧烷与强碱性化合物如碱金属氢氧化物作为催化剂，非质子极性溶剂如N，N-二甲基甲酰胺，二甲基亚砜等和各自以规定量加热并加热 混合物例如在回流下使得烷氧基被快速水解并且可以以醇的形式除去。

公开(公告)号：US4855381A

公开(公告)日：1989-08-08

申请号：US201156

申请日：1988-06-02

申请人： Kiyoyuki Mutoh ,  Kazushi Satoh ,  Kouichirou Kobayashi

发明人： Kiyoyuki Mutoh ,  Kazushi Satoh ,  Kouichirou Kobayashi

IPC分类号： C08G77/02 ,  C08G77/06 ,  C08G77/08

CPC分类号： C08G77/02 ,  C08G77/06

摘要： An organopolysiloxane composed of tetrafuctional siloxane units SiO.sub.2 and monofunctional siloxane units R.sub.3 SiO.sub.0.5 can be prepared by reacting an alkyl orthosilicate, e.g., ethyl silicate, or a partial hydrolysis product thereof and an oligomeric organopolysiloxane containing the monofunctional siloxane units in the presence of a catalytic compound which is, different from conventional hydrogen chloride, selected from the group consisting of sulfonic acid group-containing compounds, e.g., sulfuric acid and p-toluene sulfonic acid, and phosphonitrile chloride. In particular, cation exchange resins of sulfonic acid type and fluorinated polysulfonic acid resins can be used as the catalyst in a continuous process in which the reaction mixture is passed through a bed of the catalyst continuously. The inventive method is advantageous over conventional methods because of the absence of the problems of heavy corrosion of the apparatuses and waste disposal due to the hydrogen chloride.

公开(公告)号：US5210250A

公开(公告)日：1993-05-11

申请号：US935797

申请日：1992-08-27

申请人： Isao Watanuki ,  Hiroshi Tsumura ,  Nobuhiko Kodana ,  Kazushi Satoh ,  Masanori Fukuhira ,  Hidehiko Aonuma

发明人： Isao Watanuki ,  Hiroshi Tsumura ,  Nobuhiko Kodana ,  Kazushi Satoh ,  Masanori Fukuhira ,  Hidehiko Aonuma

IPC分类号： C07F7/12 ,  C07F7/20

CPC分类号： C07F7/12 ,  C07F7/20

摘要： A simple but very effective and reliable method is proposed for the decolorizing purification of a halogenated silane compound, e.g., methyl trichlorosilane, colored by containing a very small amount of heavy metal impurities such as iron. The method comprises: contacting the halogenated silane compound with a small amount of a cationic surface active agent which is solid and insoluble in the silane such as a quaternary ammonium salt, e.g., trimethyl octadecyl ammonium chloride, for 2 to 240 minutes; and then separating the silane compound from the cationic surface active agent.

摘要翻译： 提出了一种简单但非常有效和可靠的方法，用于通过含有非常少量的重金属杂质如铁来着色的卤代硅烷化合物，例如甲基三氯硅烷的脱色纯化。 该方法包括：将卤代硅烷化合物与少量固体并不溶于硅烷如阳离子表面活性剂如季铵盐如三甲基十八烷基氯化铵接触2至240分钟; 然后将硅烷化合物与阳离子表面活性剂分离。

公开(公告)号：US5241095A

公开(公告)日：1993-08-31

申请号：US976043

申请日：1992-11-13

申请人： Isao Watanuki ,  Hiroshi Tsumura ,  Kazushi Satoh ,  Nobuhiko Kodana

发明人： Isao Watanuki ,  Hiroshi Tsumura ,  Kazushi Satoh ,  Nobuhiko Kodana

IPC分类号： C07F7/08

CPC分类号： C07F7/0892

摘要： An efficient and safe method is proposed for the preparation of an oximesilane compound having a group of the general formula --O--N.dbd.CR.sup.2 R.sup.3, in which R.sup.2 and R.sup.3 are each a hydrogen atom or a monovalent hydrocarbon group, bonded to the silicon atom. The method consists of successive steps of which the first is for the reaction of a chlorosilane compound with ammonia and the second is for the reaction of the reaction mixture coming from the first step with an oxime compound to introduce the oxime groups as bonded to the silicon atom. Different from conventional methods in which formation of an explosive compound such as hydrochloride of an organic base or oxime compound is unavoidable, the inventive method does not involve formation of such an explosive by-product so that the desired oximesilane compound can be obtained without the danger of explosion.

公开(公告)号：US5171872A

公开(公告)日：1992-12-15

申请号：US779192

申请日：1991-10-22

申请人： Isao Watanuki ,  Hiroshi Tsumura ,  Kazushi Satoh ,  Nobuhiko Kodana

发明人： Isao Watanuki ,  Hiroshi Tsumura ,  Kazushi Satoh ,  Nobuhiko Kodana

IPC分类号： C07F7/10 ,  C07F7/08 ,  C07F7/20

CPC分类号： C07F7/0892

摘要： An improvement is proposed for minimizing coloration of an oximesilane synthesized by the reaction of a chlorosilane such as vinyl trichlorosilane and an oxime compound such as methyl ethyl ketone oxime in the presence of a nitrogen-containing basic compound as an acceptor of the hydrogen chloride followed by the removal of the precipitates of the hydrogen chloride salt of the base and distillation. The improvement comprises conducting the distillation of the filtrate after removal of the precipitates of salt is performed in the presence of a nitrogen-containing basic compound such as ammonia in the filtrate, for example, by blowing ammonia gas into the liquid under distillation. An already colored oximesilane product also can be decolorized by blowing ammonia gas thereinto.

摘要翻译： 提出了在含氮碱性化合物作为氯化氢的受体的存在下，通过氯代硅烷如乙烯基三氯硅烷和肟化合物如甲基乙基酮肟反应合成的肟基硅烷的着色最小化， 除去碱的氯化氢盐的沉淀物并蒸馏。 改进之处在于，在滤液中除去盐析出物之后，在含氮碱性化合物如氨的存在下，例如在蒸馏中将氨气吹入液体中进行滤液的蒸馏。 已经着色的氧化硅烷产物也可以通过吹入氨气而脱色。

公开(公告)号：US06950468B2

公开(公告)日：2005-09-27

申请号：US09986436

申请日：2001-11-08

申请人： Kazushi Satoh ,  Kuniaki Takahashi ,  Teruhiko Suzuki ,  Yoichi Yagasaki

发明人： Kazushi Satoh ,  Kuniaki Takahashi ,  Teruhiko Suzuki ,  Yoichi Yagasaki

IPC分类号： H04N19/00 ,  H04N19/102 ,  H04N19/126 ,  H04N19/134 ,  H04N19/136 ,  H04N19/146 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/19 ,  H04N19/196 ,  H04N19/40 ,  H04N19/85 ,  H04N7/12

CPC分类号： H04N19/40 ,  H04N19/105 ,  H04N19/115 ,  H04N19/126 ,  H04N19/139 ,  H04N19/14 ,  H04N19/142 ,  H04N19/149 ,  H04N19/15 ,  H04N19/172 ,  H04N19/196 ,  H04N19/197 ,  H04N19/20 ,  H04N19/61 ,  H04N19/87

摘要： The invention provides an image information conversion apparatus and method by which picture quality deterioration caused by setting of an initial value can be prevented when code amount control in MPEG4 image coding is performed based on information extracted from MPEG2 image compression information. An initial reference quantization scale determination section determines an initial value for a reference quantization scale from predetermined MPEG2 image compression information, the number of macro blocks to be included in an MPEG4 bit stream, a code amount allocated to the first I picture of the MPEG2 image compression information stored in an information buffer, an average quantization scale and a target code amount for the first I-VOP of the MPEG4 bit stream calculated by an MPEG4 image information coding section, and then calculates an initial value for a virtual buffer occupation amount based on the determined initial value for the reference quantization scale.

摘要翻译： 本发明提供了一种图像信息转换装置和方法，在MPEG4图像编码中的代码量控制基于从MPEG2图像压缩信息中提取的信息进行时，可以防止由初始值的设置引起的图像质量恶化。 初始参考量化尺度确定部分从预定的MPEG2图像压缩信息，要包括在MPEG4比特流中的宏块的数量，分配给MPEG2图像的第一I图像的代码量确定用于参考量化尺度的初始值 存储在信息缓冲器中的压缩信息，由MPEG4图像信息编码部分计算的MPEG4比特流的第一I-VOP的平均量化尺度和目标代码量，然后计算基于虚拟缓冲器占用量的初始值 对于参考量化比例的确定的初始值。

公开(公告)号：US06658157B1

公开(公告)日：2003-12-02

申请号：US09605035

申请日：2000-06-27

申请人： Kazushi Satoh ,  Takeshi Kubozono ,  Shintaro Okada ,  Yu Liu ,  Naofumi Yanagihara

发明人： Kazushi Satoh ,  Takeshi Kubozono ,  Shintaro Okada ,  Yu Liu ,  Naofumi Yanagihara

IPC分类号： G06K936

CPC分类号： H04N19/00 ,  G06F17/147 ,  H04N19/122 ,  H04N19/132 ,  H04N19/146 ,  H04N19/152 ,  H04N19/18 ,  H04N19/40 ,  H04N19/61 ,  H04N19/70

摘要： A technique is disclosed for reducing the bit rate of a bit stream coded into a compressed form according to the MPEG-2 standard, without causing significant degradation in image quality of a decoded image. An inverse DCT converter dequantizes a MPEG-2 bit stream and outputs resultant discrete cosine transform coefficients for each DCT block. A band limiter replaces the values of high-frequency components of the discrete cosine transform coefficients in the horizontal direction, with 0. A quantizer quantizes the discrete cosine transform coefficients using a quantization step value different from the original value.

摘要翻译： 公开了一种用于根据MPEG-2标准降低编码成压缩形式的比特流的比特率的技术，而不会导致解码图像的图像质量的显着劣化。 逆DCT转换器对MPEG-2比特流进行去量化，并输出每个DCT块的合成离散余弦变换系数。 频带限制器用水平方向将离散余弦变换系数的高频分量的值替换为0.量化器使用不同于原始值的量化步长值来量化离散余弦变换系数。