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Priority to MYPI94002766ApriorityCriticalpatent/MY124317A/en
Publication of MY124317ApublicationCriticalpatent/MY124317A/en
Transition And Organic Metals Composition Catalysts For Addition Polymerization
(AREA)
Abstract
THE PRESENT INVENTION RELATES TO A PROCESS FOR (CO-)POLYMERIZING OLEFIN(S) COMPRISING INTRODUCING INTO A POLYMERIZATION MEDIUM THE OLEFIN(S), A TITANIUM-BASED CATALYST OF ZIEGLER-NATTA TYPE, AN ORGANOMETALLIC COCATALYST AND A HALOGENATED HYDROCARBON COMPOUND IN AN AMOUNT EFFECTIVE FOR INCREASING THE CATALYST ACTIVITY IN THE (CO-) POLYMERIZATION, THE AMOUNT BEING SUCH THAT THE MOLAR RATIO OF THE QUANTITY OF THE HALOGENATED HYDROCARBON COMPOUND TO THAT OF TITANIUM IS COMPRISED BETWEEN 0.01 AND 0.1, OR BETWEEN 0.001 AND 0.15 WHEN THE (CO-) POLYMERIZATION IS CARRIED OUT CONTINUOUSLY.THE PROCESS IS PARTICULARLY USEFUL IN A CONTINUOUS GAS-PHASE (CO-)POLYMERISATION OF OLEFIN(S). (FIGURE 1).
MYPI94002766A1994-10-171994-10-17Process for polymerising olefin with a ziegler -natta catalyst.
MY124317A
(en)
PROCESS FOR THE MANUFACTURE OF LOW DISPERSITY MICROSPHEROUIDAL POWDER, LOW DISPERSITY MICROSPHEROUIDAL POWDER THUS OBTAINED, CATALYSTS FOR THE POLYMERIZATION OF ALPHA-OLEFINS AND POLYMERIZATION PROCESS OF ALPHA-OLEFINS.
SOLID CATALYST COMPONENT FOR USE IN STEREO-SPECIFIC ALPHA-OLEFIN POLYMERIZATION, METHOD FOR PRODUCING THE SAME AND METHOD FOR ALPHA-OLEFIN POLYMERIZATION IN THEIR PRESENCE