1
Kaminsky Walter Prof Dr, Kulper Klaus, Buschermohle Maria, Luker Hartmut: Process for preparing polyolefins.. Hoechst, July 2, 1986: EP0185918-A2 (78 worldwide citation)

Bei der Polymerisation von Propylen und anderen höheren 1-Olefinen erhält man in Gegenwart eines Katalysatorsystems aus einer Zirkonverbindung, welche stereorigid und chiral ist, und einen linearen oder cyclischen Aluminoxan Polymerisate, die einen hohen Isotaktizitätsgrad aufweisen und eine enge Mo ...


2
Antberg Martin Dr, Luker Hartmut Dr, Bohm Ludwig Dr: Process for preparing a 1-olefin polymer.. Hoechst, December 7, 1988: EP0293815-A1 (36 worldwide citation)

If the transition metal component in an olefin polymerisation catalyst is the product of the reaction between a siloxane-substituted metallocene of titanium, zirconium or hafnium and a hydroxyl-containing support material, for example silicon dioxide, these metallocene catalysts can be employed in e ...


3
Luker Hartmut Dr: Polyethylene wax and process for preparing the same.. Hoechst, June 28, 1989: EP0321851-A1 (21 worldwide citation)

Polyethylenwachse mit sehr enger Molmassenverteilung, hoher Isotaktizität, enger Korngrössenverteilung und hoher Schüttdichte erhält man mittels eines Katalysators, welcher aus einem Metallocen und einem Aluminoxan besteht, in Gegenwart von geringen Mengen Wasserstoff bei der Polymerisation.


4
Spaleck Walter, Antberg Martin, Bohm Ludwig, Rohrmann Jurgen, Luker Hartmut: Methode de preparation de polymeres dethylene, Process for the preparation of ethylene polymers. Hoechst Aktiengesellschaft, Basell Polyolefine, BERESKIN & PARR, January 30, 2001: CA2017190 (18 worldwide citation)

Process for the preparation of ethylene polymers The preparation of polyethylene and ethylene-1-olefincopolymers in the suspension or gas phase process withthe aid of metallocene/aluminoxane catalysts whosemetallocene component is a bridged biscyclopentadienylcomplex offers particular advantages. De ...


5
Antberg Martin Dr, Spaleck Walter Dr, Rohrmann Jurgen Dr, Luker Hartmut Dr, Winter Andreas Dr: Process for preparing an ethylene-propylene copolymer.. Hoechst, May 2, 1990: EP0365974-A2 (4 worldwide citation)

Die Erfindung betrifft ein Verfahren zur Herstellung eines überwiegend kristallinen Ethylen-Propylen-Copolymeren mit weniger als 15 mol % Propyleneinheiten, welches in flüssigem Propylen als Suspensionsmittel durchgeführt werden kann, wenn Metallocen-Katalysatorkomponenten der Formeln I, II oder III ...


6
Antberg Martin, Luker Hartmut, Bohm Ludwig: Procede pour la preparation dun polymere dalc-1-ene, Process for the preparation of a 1-olefin polymer. Hoechst Aktiengesellschaft, BERESKIN & PARR, January 19, 1993: CA1312992 (2 worldwide citation)

- 1 - HOE 87/F 163 ABSTRACT OF THE DISCLOSURE Process for the preparation of a 1-olefin polymer If the transition metal component used in an olefin poly-merization catalyst is the product of the reaction betweena siloxane-substituted metallocene of titanium, zirconiumor hafnium and a hydroxyl group- ...


7
Berthold Joachim, Bohm Ludwig, Breuers Werner, Enderle Johannes Friedrich, Flei�ner Manfred, Lecht Rainer, Luker Hartmut, Schulte Ulrich, Bromstrup Heiner: Tuyau de polyethylene aux proprietes mecaniques ameliorees, Pipe of polyethylene having improved mechanical properties. Basell Polyolefine, BERESKIN & PARR, October 28, 2008: CA2175158 (1 worldwide citation)

The invention relates to a high strength pipe of ethylene polymer having a bimodal molecular weight distribution. Such pipe has a stress cracking resistance of >= 1400 h, a fracture toughness of >= 7 mJ/mm2 and a modulus of creep in flexure, measured according to DIN 54852-Z4, of >= 1100 N/mm2. The ...


8
Kaminsky Walter, Kulper Klaus, Luker Hartmut, Buschermohle Maria: Methode de preparation de polyolefines, Process for the preparation of polyolefins. Hoechst Aktiengesellschaft, BERESKIN & PARR, January 9, 1990: CA1264399

Abstract of the disclosure: In the polymerization of propylene and other higher 1-olefins, polymers which have a high degree of isotacticityand a narrow distribution of molecular weight are obtainedin the presence of a catalyst system composed of a zir-conium compound which is stereo-rigid and chira ...


9
Luker Hartmut, Franke Rainer: (co)Polymeres dethylene, (co) Polymers. Hoechst Aktiengesellschaft, Basell Polyolefine, BERESKIN & PARR, August 5, 2003: CA2016931

A catalyst which consists of an aluminumtrialkyl and theentire product from the reaction of a ground magnesiumalcoholate with a tetravalent titanium compound and ahalogen-containing organoaluminum compound its used forthe homopolymerization of ethylene or the copolymeriza-tion of ethylene with other ...


10
Antberg Martin, Rohrmann Jurgen, Winter Andreas, Luker Hartmut, Spaleck Walter: Methode de preparation dun copolymere dethylene/propylene, Process for the preparation of an ethylene/propylene copolymer. Hoechst Aktiengesellschaft, BERESKIN & PARR, May 14, 1996: CA1338333

The invention relates to a process for the preparation ofa predominantly crystalline ethylene/propylen copolymerhaving less than 15 mol% of propylene units, which canbe carried out in liquid propylene as the suspendingagent, if metallocene catalyst components of the formulaeI, II or III are employed ...