1
Ernst Eberhard Dr, Reussner Jens Dr, Neissl Wolfgang Dipl Ing Dr: Catalyst system and process for the polymerization of olefins. Danubia Petrochem Polymere, February 7, 1996: EP0695765-A1 (40 worldwide citation)

A novel olefin polymerisation catalyst comprises: (A) a sub-Gp. III, IV, V or VI metallocene; (B) aluminoxane; (C) a Gp. II, III or IV metal oxide; and (D) an organometallic cpd. of formula (I). Claimed prepn. is by mixing (A) and (B) and then mixing the prod. with a (C)/(D) reaction prod. MR1R2R3R4 ...


2
Ernst Eberhard Dr, Reussner Jens Dr, Neissl Wolfgang Dipl Ing Dr: Catalyst carrier, supported metallocene catalysts and their use in the preparation of polyolefins.. Danubia Petrochem Polymere, December 6, 1995: EP0685494-A1 (22 worldwide citation)

The prodn. of a catalyst support (I) comprises: (a) drying hydrophilic, macroporous, disperse Al2O3, SiO2, titanium oxide or zirconium oxide, or mixts. or mixed oxides thereof (II), at 110-800 degrees C; (b) reacting with an aluminoxane (III); and then (c) reacting with polyfunctional organic crossl ...


3
Ernst Eberhard Dr, Majewski Klaus Peter Dipl Ing, Loenne Klaus Dipl Ing: Metallic gasket. Payen Goetze, Krebsoege Sinterholding, February 5, 1997: EP0757195-A1 (13 worldwide citation)

The seal has through-holes and added layers (3) of compression-resistant material onto at least one of the metal plates. The layers of sinterable material applied in a fluid state onto at least one of the metal plates (1) consist of a metal powder or metal alloy powder mixed with a bonding agent. Th ...


4
Gasser Marcel, Latta Ernst Eberhard Dr: Method for mirror passivation of semiconductor laser diodes.. Ibm, March 13, 1991: EP0416190-A1 (12 worldwide citation)

A method for mirror passivation in the fabrication of semiconductor laser diodes. Key of the method are two basic steps : (1) providing a contamination-free mirror facet, followed by (2) in-situ application of a continuous, insulating or low conductive passivation layer which consists of a material ...


5
Bildstein Benno Dr, Denifl Peter Mag, Fleischanderl Robert, Ernst Eberhard Dr, Neissl Wolfgang Dipl Ing Dr: Process for the preparation of silicon-bridged asymmetric cyclopentadienyl-, indenyl- and fluorenyl-containing ligand systems. Danubia Petrochem Polymere, January 24, 1996: EP0693497-A2 (5 worldwide citation)

The prodn. of unsymmetrical Si-bridged cyclopentadienyl, indenyl or fluorenyl ligand systems (I) comprises: (a) reacting cpds. of formula (VII) with opt. substd. cyclopentadienides, indenides or fluorenides. X = halo; R, R = 1-20C alkyl or fluoroalkyl, 6-14C aryl, 7-20C aralkyl or alkaryl, 6-10C hal ...


6
Ernst Eberhard Dr, Reussner Jens Dr: Process for manufacturing catalyst supports and supported polyolefin catalysts and the use thereof for the preparation of polyolefins. Danubia Petrochem Polymere, August 6, 1997: EP0787746-A1 (3 worldwide citation)

The production of a catalyst support (CS) comprises (a) drying a hydrophilic inorganic oxide of a main Gp=II-IV or sub Gp=IV element, or mixtures or mixed oxides thereof, at 110-800 degrees C, (b) optionally reacting free hydroxyl groups in the oxide partly or completely with aluminoxanes (AOX) or a ...


7
Schottenberger Herwig Mag Dr, Reussner Jens Dr, Buchmeiser Michael Mag Dr, Neissl Wolfgang Dipl Ing Dr, Elsner Olaf Mag, Angleitner Herbert Mag, Ernst Eberhard Dr: Metallocenes and their use in polymerization of olefins.. Danubia Petrochem Polymere, September 27, 1995: EP0673946-A2 (2 worldwide citation)

Metallocenes of formula (I) are new: M = Ti, Zr, Hf, V, Nb, Ta or a lanthanide; X1, X2 = 1-10C alkyl or alkoxy, 6-10C aryl or aryloxy, 2-10C alkenyl, 7-20C arallyl or alkaryl, 8-20C aralkenyl, H or halo; L1, L2 = (a) opt. mono- or poly-substd. mono- or poly-nuclear hydrocarbon residue with at least ...


8
Stelzer Franz Dr, Ernst Eberhard Dr, Buchacher Petra Dr, Reussner Jens Dr, Eder Elisabeth: Supported catalysts for the ringopening metathesis polymerization of cycloolefins. Pcd Polymere, September 16, 1998: EP0864595-A1 (2 worldwide citation)

A supported catalyst for the ring-opening metathesis polymerization (ROMP) of cycloolefins, comprising the reaction product of a) a catalyst support containing aa) hydrophilic inorganic oxides of elements of main groups IIa, IIIa or IVa, or of subgroup IVb of the periodic table, or a mixture of said ...


9
Broom Ronald F Dr, Gasser Marcel, Harder Christoph Dr, Latta Ernst Eberhard Dr, Oosenbrug Albertus, Richard Heinz, Vettiger Peter: Method and apparatus for batch cleaving semiconductor wafers and for coating the cleaved facets.. Ibm, November 27, 1991: EP0457998-A1

A method for cleaving semiconductor wafers, or segments thereof, which comprises placing the wafer (11), provided with scribe lines (15) defining the planes where cleaving is to take place, inbetween a pair of flexible transport bands (12,13) and guiding it around a curved, large radius surface (21) ...