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    • 1. 发明授权
    • Process for the preparation of polyolefins
    • 制备聚烯烃的方法
    • US4542199A
    • 1985-09-17
    • US559838
    • 1983-12-08
    • Walter KaminskyHeinrich HahnsenKlaus KulperRudiger Woldt
    • Walter KaminskyHeinrich HahnsenKlaus KulperRudiger Woldt
    • C08F4/00C08F4/60C08F4/64C08F4/642C08F4/659C08F4/6592C08F10/00C08F210/16
    • C08F10/00C08F4/65912C08F4/65925Y10S526/943
    • The invention relates to a process for the preparation of polyolefins by polymerizing olefins of the formula CH.sub.2 CHR in which R=H or C.sub.1 -C.sub.10 alkyl, on their own or as a mixture, if appropriate together with C.sub.4 -C.sub.12 .alpha.,.omega.-diolefins, in solvents, liquid monomers or the gas phase, at temperatures between -50.degree. and 200.degree. C., using a catalyst system composed of a soluble, halogen-containing transition metal compound of the general formula(cyclopentadienyl).sub.2 Me R Halin which R is cyclopentadienyl or a C.sub.1 -C.sub.6 alkyl radical or a halogen, in particular chlorine, Me is a transition metal, in particular zirconium, and Hal is a halogen, in particular chlorine, and a compound, containing aluminum, of the aluminoxane type having the general formulaeAl.sub.2 OR.sub.4 (Al(R)--O).sub.nfor a linear aluminoxane and/or(Al(R)--O).sub.n+2for a cyclic aluminoxane, in which n is a number from 4 to 20 and R is a methyl or ethyl radical, preferably a methyl radical.
    • 本发明涉及一种制备聚烯烃的方法,该方法通过将其中R = H或C 1 -C 10烷基的式CH 2 CHR的烯烃自身或作为混合物如果合适地与C4-C12α,ω-二烯烃, 在溶剂,液体单体或气相中,在-50℃和200℃之间的温度下,使用由可溶性的含卤素的通式(环戊二烯基)2 Me R Hal的过渡金属化合物组成的催化剂体系,其中 R是环戊二烯基或C 1 -C 6烷基或卤素,特别是氯,Me是过渡金属,特别是锆,Hal是卤素,特别是氯,以及含有铝的化合物,铝氧烷类具有 对于环状铝氧烷,线性铝氧烷和/或(Al(R)-O)n + 2的通式为Al 2 OR 4(Al(R)-O)n,其中n为4至20的数,R为 甲基或乙基,优选甲基。
    • 6. 发明授权
    • Electrical condenser with a dielectric of gas under pressure
    • 具有压力介质气体的电凝器
    • US4342066A
    • 1982-07-27
    • US38569
    • 1979-05-14
    • Klaus Kulper
    • Klaus Kulper
    • H01G4/02H01G5/02
    • H01G4/02
    • The present invention relates to a condenser for high power and with a gas shaped dielectric and preferably intended for tank circuits in high frequency generators and radio transmitters. The electrodes of the condenser consists of two metal tubes (1 and 2) with different diameters and located concentrically relative to each other. Those tubes are at both ends gas tight connected to each other so that a space is formed by the air gap between the tubes (1,2) which space can be filled with gas under pressure. The space inside the tube (2) with the smallest diameter is open and can be used for a transmitter tube to be located therein.
    • 本发明涉及一种用于大功率并具有气体形状电介质的冷凝器,优选用于高频发生器和无线电发射器中的储罐电路。 冷凝器的电极由具有不同直径的两个金属管(1和2)组成并且相对于彼此同心地定位。 这些管的两端彼此气密连接,从而在管(1,2)之间的气隙形成空间,该空间可以在压力下被填充气体。 具有最小直径的管(2)内的空间是开放的,并且可以用于位于其中的发射器管。