Cap sleeve for light waveguide cables
    2.
    发明授权
    Cap sleeve for light waveguide cables 失效
    光波导电缆套管

    公开(公告)号:US5815629A

    公开(公告)日:1998-09-29

    申请号:US698726

    申请日:1996-08-16

    CPC classification number: G02B6/4442

    Abstract: A cap sleeve for a light waveguide cable for universal employment in a light waveguide network receives a fastening frame, which provides a storage space for excess lengths of uncut light waveguide multi-fiber bundles, and provides a splicing block on which individual splicing cassettes can be removed by a tilting motion.

    Abstract translation: 用于在光波导网络中普遍使用的光波导电缆的盖套筒接收紧固框架,其提供用于多余长度的未切割光波导多纤维束的存储空间,并提供拼接块,单个拼接盒可以在该拼接块 通过倾斜运动去除。

    Method of making methacrylamides
    4.
    发明授权
    Method of making methacrylamides 失效
    制备甲基丙烯酰胺的方法

    公开(公告)号:US4675442A

    公开(公告)日:1987-06-23

    申请号:US709343

    申请日:1985-03-06

    CPC classification number: C07C231/02

    Abstract: What is disclosed is a method for making an amide of acrylic acid or of methacrylic acid by the reaction of an alkyl ester of acrylic acid or of methacrylic acid with an amine at a temperature between 50.degree. C. and 180.degree. C., whereby the reaction with the amine is carried out in the presence of a catalytic amount of a compound of a metal of Group IVB of the periodic table of the elements or of a compound of lead, zinc, or tantalum.

    Abstract translation: 公开的是通过丙烯酸或甲基丙烯酸的烷基酯与胺在50℃至180℃的温度下反应制备丙烯酸或甲基丙烯酸的酰胺的方法,其中 与胺的反应在催化量的元素周期表第IVB族金属化合物或铅,锌或钽化合物的存在下进行。

    Method for making cyanogen chloride
    8.
    发明授权
    Method for making cyanogen chloride 失效
    制造氯化氰的方法

    公开(公告)号:US3976754A

    公开(公告)日:1976-08-24

    申请号:US607599

    申请日:1975-08-25

    CPC classification number: C01C3/004

    Abstract: A method for making cyanogen chloride which comprises passing an approximately equimolar mixture of dicyan and chlorine over a charcoal catalyst at a temperature between 500.degree.C. and 950.degree.C. at a space velocity between 1000 and 10000 liters, measured at room temperature, per liter of catalyst and per hour.

    Abstract translation: 一种制备氯化氰的方法,其包括在500℃和950℃之间的温度下,在室温下测量的空气速度,在室温下测量二氰和氯的大约等摩尔的混合物,在一个木炭催化剂上, 升催化剂和每小时。

    Method for making isobutyric acid
    10.
    发明授权
    Method for making isobutyric acid 失效
    制备异丁酸的方法

    公开(公告)号:US4647696A

    公开(公告)日:1987-03-03

    申请号:US474799

    申请日:1983-03-14

    CPC classification number: C07C51/14 C07C67/38

    Abstract: What is disclosed is a continuous one-step method for the preparation of isobutyric acid or a lower alkyl ester thereof by the Koch synthesis, which method comprises reacting propylene, carbon monoxide, and water or a lower alcohol, in the gaseous and liquid phases, in the presence of hydrogen fluoride as a Koch catalyst, at a temperature between 80.degree. C. and 160.degree. C., at a dwell time of the liquid phase of less than 20 minutes, and with a high degree of backmixing, while maintaining the content of propylene in the reaction mixture at less than one percent by weight of the liquid phase, wherein all or part of the propylene, carbon monoxide, and water or lower alcohol can be replaced by binary addition compounds formed pairwise between these materials. In the alternative, isopropylformiate can be continuously rearranged in the presence of hydrogen fluoride to produce isobutyric acid.

    Abstract translation: 所公开的是通过Koch合成制备异丁酸或其低级烷基酯的连续一步法,该方法包括在气相和液相中使丙烯,一氧化碳和水或低级醇反应, 在作为Koch催化剂的氟化氢的存在下,在80℃至160℃的温度下,在液相的停留时间小于20分钟,并具有高度的回混,同时保持 反应混合物中丙烯的含量小于液相的1重量%,其中全部或部分丙烯,一氧化碳和水或低级醇可以由这些材料成对形成的二元加成化合物代替。 在替代方案中,异丙基甲酸酯可以在氟化氢的存在下连续重排以产生异丁酸。

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