Process for producing perfluorocarboxylic acid fluoride
    1.
    发明授权
    Process for producing perfluorocarboxylic acid fluoride 失效
    制备全氟羧酸氟化物的方法

    公开(公告)号:US5399754A

    公开(公告)日:1995-03-21

    申请号:US233802

    申请日:1994-04-26

    CPC分类号: C07C51/58

    摘要: A process of producing a perfluorocarboxylic acid fluoride having the formula (1): ##STR1## wherein n is an integer of at least 2, comprising effecting oligomerization of hexafluoropropylene oxide in the presence of an alkali metal fluoride a sulfone or a mixture of a sulfone with an ether having the formula (2):CH.sub.3 O(CH.sub.2 CH.sub.2 O).sub.m CH.sub.3 (2)where m is an integer of 2 to 6. This process makes it possible to improve production yield of hexafluoropropylene oxide oligomers remarkably, and to raise a reaction temperature for the oligomerization, as compared with conventional methods, thereby shortening reaction time therefor.

    摘要翻译: 一种制备具有式(1)的全氟羧酸氟化物的方法:其中n是至少为2的整数,包括在碱金属氟化物a砜或混合物存在下进行六氟环氧丙烷的低聚反应 具有式(2)的醚的砜:CH 3 O(CH 2 CH 2 O)m CH 3(2)其中m是2至6的整数。该方法可以显着提高六氟环氧丙烷低聚物的产率,并提高 与常规方法相比,用于低聚的反应温度,从而缩短了其反应时间。

    Fluorinated organic silicon compounds and method for making
    2.
    发明授权
    Fluorinated organic silicon compounds and method for making 失效
    氟化有机硅化合物及其制备方法

    公开(公告)号:US5214177A

    公开(公告)日:1993-05-25

    申请号:US769483

    申请日:1991-10-01

    IPC分类号: C07F7/12

    CPC分类号: C07F7/12

    摘要: Fluorinated organic silicon compound of the general formula: ##STR1## wherein R is an alkyl group having 1 to 6 carbon atoms, n is an integer of from 1 to 6, and m is equal to 1, 2 or 3 are novel and useful as treating agents and intermediates for the synthesis of fluorinated cyclic organic silicon compounds. The fluorinated organic silicon compounds are prepared by reacting a chlorosilane with a fluorinated olefin.

    摘要翻译: 具有以下通式的氟化有机硅化合物:其中R是具有1至6个碳原子的烷基,n是1至6的整数,m等于1,2或3是新的 并且可用作合成氟化环状有机硅化合物的处理剂和中间体。 氟化有机硅化合物通过氯硅烷与氟化烯烃反应制备。

    Node information collecting method in a ring system
    3.
    发明授权
    Node information collecting method in a ring system 失效
    环网系统中的节点信息采集方法

    公开(公告)号:US5590117A

    公开(公告)日:1996-12-31

    申请号:US413102

    申请日:1995-03-29

    IPC分类号: H04L12/26 H04L12/437 H04J3/14

    摘要: In a ring network system comprising a plurality of nodes, each node is provided with a node information table which is logically divided into node areas each corresponding to a single node within the ring network. Each node collects node information stored in the node information tables of the two adjacent nodes by regularly accessing the node information tables of those nodes, and updates the contents of its own node information table. As a result of the above information collecting operation that is performed by each node, all the node information can be stored in the node information table of each node.

    摘要翻译: 在包括多个节点的环形网络系统中,每个节点被提供有一个节点信息表,该节点信息表被逻辑地划分成每个对应于环形网络内的单个节点的节点区域。 每个节点通过定期访问这些节点的节点信息表,收集存储在两个相邻节点的节点信息表中的节点信息,并更新其自身节点信息表的内容。 作为由每个节点执行的上述信息收集操作的结果,所有节点信息可以存储在每个节点的节点信息表中。

    Oligohexafluoropropylene oxide derivative and process of producing the
same
    5.
    发明授权
    Oligohexafluoropropylene oxide derivative and process of producing the same 失效
    低聚六氟环氧丙烷衍生物及其制备方法

    公开(公告)号:US5278340A

    公开(公告)日:1994-01-11

    申请号:US903967

    申请日:1992-06-26

    摘要: Oligohexafluoropropylene oxide derivatives represented by the general formula (I): ##STR1## wherein R.sub.f represents a perfluoroalkyl group having 1 to 10 carbon atoms and n is an integer of 0 to 100 or the general formula (II): ##STR2## wherein R.sub.f ' represents a perfluoroalkylene group having 2 to 10 carbon atoms and a and b are each independently an integer of 0 to 20. These compounds are novel and are useful as intermediates for synthesizing iodine-containing oligohexafluoropropylene oxides useful as raw materials for fluororesins, fluororubbers, and fluorine-containing surfactants.

    摘要翻译: 由通式(I)表示的低聚六氟环氧丙烷衍生物:(*化学结构*)(I)其中,Rf表示碳原子数1〜10的全氟烷基,n表示0〜100的整数或通式(II): (*化学结构*)(II)其中Rf'表示具有2〜10个碳原子的全氟亚烷基,a和b各自独立地为0〜20的整数。这些化合物是新的,可用作合成含碘的中间体 可用作氟树脂,氟​​橡胶和含氟表面活性剂的原料的低聚六氟环氧丙烷。

    Heat-curable fluorosilicone rubber composition and cured product thereof
    6.
    发明授权
    Heat-curable fluorosilicone rubber composition and cured product thereof 失效
    热固性氟硅橡胶组合物及其固化物

    公开(公告)号:US5264522A

    公开(公告)日:1993-11-23

    申请号:US942503

    申请日:1992-09-10

    CPC分类号: C08K3/36 C08L83/08

    摘要: The present invention provides a heat-curable fluorosilicone rubber composition to be cured by hydrosilation reactions and having outstanding physical properties, especially improved transparency and processability, said composition comprising(A) a polydiorganosiloxane having at least two unsaturated aliphatic hydrocarbon groups and represented by the general formula (1):R.sub.a.sup.1 SiO.sub.(4-a)/2 ( 1) wherein R.sup.1 represents a substituted or unsubstituted monovalent hydrocarbon group containing 0.01 to 15 mole % of an unsaturated aliphatic hydrocarbon group, a is a positive number of from 1.95 to 2.05.(B) a polyorganohydrogensiloxane having at least three hydrogen atoms directly bonded to silicon atoms in a molecule and represented by the general formula: ##STR1## wherein R.sup.2, R.sup.3 and R.sup.4 independently represents a substituted or unsubstituted monovalent hydrocarbon group, X represents CF.sub.2 or C.sub.3 F.sub.6 O, b is equal to 2 or 3, c is equal to 1 or 2, b+c=3, m is an integer of 2 or more, n is an integer of 1 or more, and k is an integer of 2 or more,(C) a silica filler having a specific surface area of at least 50 m.sup.2 /g, and(D) an addition reaction catalyst.

    摘要翻译: 本发明提供一种通过硅氢化反应固化并具有突出的物理性能,特别是提高的透明性和加工性的可热固化氟硅橡胶组合物,所述组合物包含(A)具有至少两个不饱和脂族烃基的聚二有机硅氧烷, 式(1):Ra1SiO(4-a)/ 2(1)其中R1表示取代或未取代的含有0.01〜15摩尔%不饱和脂肪族烃基的一价烃基,a为1.95〜2.05的正数。 (B)具有至少三个氢原子的聚有机氢硅氧烷,其分子中直接与硅原子键合并由以下通式表示:其中R2,R3和R4独立地表示取代或未取代的单价烃基,X表示 CF2或C3F6O,b等于2或3,c等于1或2,b + c = 3,m为2以上的整数,n为1以上的整数,k为 2以上,(C)比表面积为50m 2 / g以上的二氧化硅填料,(D)加成反应催化剂。

    Method of mounting and demounting molds to and from press molding machine
    7.
    发明授权
    Method of mounting and demounting molds to and from press molding machine 失效
    将模具安装到压模机上和从模具机拆卸的方法

    公开(公告)号:US5003809A

    公开(公告)日:1991-04-02

    申请号:US516437

    申请日:1990-04-30

    申请人: Masayuki Oyama

    发明人: Masayuki Oyama

    IPC分类号: B21D22/21 B21D37/04

    CPC分类号: B21D37/04 B21D22/21

    摘要: In a method of mounting and demounting at least two, upper and lower dies to and from a press molding machine, a workpiece is inserted into a press position between the upper and lower dies. The workpiece is then pressed or stamped at the press position by the upper and lower dies. The upper and lower dies are maintained at the press position to leave the workpiece after having been pressed or stamped, at the press position between the upper and lower dies. The upper and lower dies are mounted and demounted to and from the press molding machine, with the workpiece maintained at the press position between the upper and lower dies.

    摘要翻译: 在将压模成型机中的至少两个上模和下模安装和拆卸的方法中,将工件插入到上模和下模之间的加压位置。 然后通过上模和下模在加压位置压制或冲压工件。 上模和下模保持在加压位置,以在上模和下模之间的压力位置被压制或冲压之后离开工件。 上模和下模被安装和拆卸到压模机上,工件保持在上模和下模之间的压力位置。

    Process of producing silethylene oxide
    8.
    发明授权
    Process of producing silethylene oxide 失效
    生产聚氧乙烯的方法

    公开(公告)号:US5191102A

    公开(公告)日:1993-03-02

    申请号:US913345

    申请日:1992-07-15

    IPC分类号: C07F7/08

    CPC分类号: C07F7/0874 C07F7/0841

    摘要: A process of producing a silethylene oxide represented by the following general formula (1): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, and R.sup.4 each represent a hydrocarbon group having 1 to 8 carbon atoms such as a methyl group, comprising the steps of thermally decomposing the hydrolyzate of 1,4-dichloro-1,1,4,4-tetrahydrocarbyl-1,4-disilabutane in the presence of an alkali, bringing the thermally decomposed product in contact with carbon dioxide and distilling the reaction mixture. According to this process, in the distillation, since polymerization or formation of 2,5-disilahexane-2,5-diol can be obviated, a purified silethylene oxide can be obtained in high yield. Further, the distillation apparatus will not be clogged with by-products.

    摘要翻译: 制备由以下通式(1)表示的聚环氧乙烷的方法:其中R 1,R 2,R 3和R 4各自表示具有1至8个碳原子的烃基如甲基,其包含 在碱存在下热分解1,4-二氯-1,1,4,4-四烃基-1,4-二硅烷的水解产物的步骤,使热分解产物与二氧化碳接触并蒸馏反应 混合物。 根据该方法,在蒸馏中,由于可以消除2,5-二脱氧己烷-2,5-二醇的聚合或形成,因此可以高产率获得纯化的硫醚环氧乙烷。 此外,蒸馏装置不会被副产物堵塞。

    Pattern inspection system
    10.
    发明授权
    Pattern inspection system 失效
    图案检查系统

    公开(公告)号:US4547895A

    公开(公告)日:1985-10-15

    申请号:US428605

    申请日:1982-09-30

    CPC分类号: G01B11/024 G06K9/54 G06T7/60

    摘要: A pattern inspection system for inspecting a pattern formed on a base, such as a photomask, by means of laser beam scanning which includes a device for detecting the body and edges of the pattern, a memory device having a plurality of memory units for separately storing the detected body and plurality of edges of the pattern, a device for measuring the width of the body of the pattern between two parallel edges of the pattern, a device for detecting and correcting missing pattern edges, a device for inverting the pattern, a device for reducing the pattern, and a device for eliminating pinholes and stains within the pattern.

    摘要翻译: 一种图案检查系统,用于通过激光束扫描检查形成在诸如光掩模的基座上的图案的图案检查系统,其包括用于检测图案的主体和边缘的装置;存储装置,具有多个存储单元,用于分开存储 图案的检测体和多个边缘,用于测量图案的两个平行边缘之间的图案的主体的宽度的装置,用于检测和校正缺失图案边缘的装置,用于反转图案的装置,装置 用于减少图案,以及用于消除图案内的针孔和污渍的装置。