Preparation of inorganic MgCl2-Alcohol adduct and its application in organometallic HYBRID catalysts for ethylene polymerization

Korean Journal of Chemical Engineering

Volumn 19, Issue 4, 2002, Pages 557-563

  Cho, Han Seock ^a   Lee, Wha Young ^a  

^a Seoul National University   (South Korea)

Author keywords

Ethylene polymerization; Metallocene; MgCl2 Alcohol adduct; Recrystallization; Ziegler Natta; Ziegler Natta Metallocene hybrid catalysts

Indexed keywords

EID: 28444491758     PISSN: 02561115     EISSN: None     Source Type: Journal    
DOI: 10.1007/BF02699295     Document Type: Article

References (21)

1. Ahlers, A. and Kaminsky, W., "Variation of Molecular Weight Distribution of Polyethylenes Obtained with Homogeneous Ziegler-Natta Catalysts", Makromol. Chem. Rapid Commun., 9, 457 (1988).
2. Cho, H. G., Han, G. Y. and Aha, G. R., "The Slug How Behaviour of Polyethylene Particles Polymerized by Ziegler-Natta and Metallocene Catalysts", Korean J. Chem. Eng., 18, 561 (2001).
3. Cho, H. S., Choi, K H., Choi, D. J. and Lee, W. Y, "Control of Molecular weight Distribution (MWD) for Polyethylene Catalyzed over Ziegler-Natta/Metallocene Hybrid Catalysts", Korean J. Chem. Eng., 17, 205 (2000).
4. Cho, H. S., Chung, J. S. and Lee, W. Y, "Control of Molecular weight Distribution for Polyethylene Catalyzed over Ziegler-Natta/Metallocene Hybrid and Mixed Catalysts" J. Mol. Cat, Part A: Chem., 159, 203(2000).
5. 2 Prepared by a Recrystallization Method", .J Appl Polym. Sci., 70, 1707 (1998).
6. Dagnillo, L., Soares, J. B. P. and Penlidis, A., "Controlling Molecular weight Distributions of Polyethylene by Combining Soluble Metal-locene/MAO Catalysts", J. Polym. Sci., Part A: Polym. Chem. Ed., 36, 831 (1998).
7. Ishihara, N., Kuramoto, M. and Uoi, M., "Stereospecific Polymerization of Styrene Giving the Syndiotactic Polymer" Macromolecules, 21, 3356(1988).
8. Kaminsky, W. and Scheirs, J., "Metallocene-Based Polyolefins", John Wiley & Sons, New York, 173 (2000).
9. Kaminsky, W., Bark, A. and Amdt, M., "New Polymers by Homogeneous Zirconocene/Aluminoxane Catalysts", Makromol. Chem. Macromol. Symp., 47, 83 (1991).
10. 2 Catalysts", Korean J. Chem. Eng., 7, 95 (1990).
11. 2", Korean J. Chem. Eng., 16, 562 (1999).
12. Magalhaes, D. N. T, Filho, O. D. C. and Coutinho, F. M. B., "Ziegler- Natta Catalyst for Ethylene and Propylene Polymerization Supported on Adducts of Magnesium Chloride with Methyl and Ethyl Alcohols", Eur. Polym. J., 27, 827 (1991).
13. Magalhaes, D. N. T, Filho, O. D. C. and Coutinho, F. M. B., "Ziegler-Naita Catalysts for Ethylene and Propylene Polymerizations Supported on the Products of Thermal Desolvation of the Adduct of Magnesium Chloride with Methyl and Ethyl Alcohols", Eur. Polym. J., 27, 1093 (1991).
14. Park, H. M. and Lee, W. Y, "The Effect of Triethylaluminum Treatment on a Ziegler-Natta Catalyst Supported on Magnesium Chloride Prepared by a Recrystallization Method for Propylene Polymerization", Eur. Polym. J., 28, 1417 (1992).
15. Razavi, A., U. S. Pat., 5, 914, 289 (1999).
16. Sinn, H. and Kaminsky, W., "Ziegler-Natta Catalysis "Adv. Organomet. Chem., 18, 99(1980).
17. 2-Supported Metallocene Catalysts Activated by Trialkylalurrunums", Macromol. Chem. Phys., 195, 1369(1994).
18. 5)", Mahvmol. Chem. Rapid Commun., 12, 367(1991).
19. 2 Combined with Trialkylaluminum", Macromol. Chem. Rapid Commun., 13, 221 (1992).
20. Woo, S. I, Ko, Y. S., Han, T. K, Park, J. W. and Huh, W. S., "Olefin Polymerization Catalyzed over Zeolite-Supported Metallocene Catalysts", Proceeding of Metallocenes '96, Schotland Business Research, Germany, 271 (1986).
21. Zambelli, A., Pellecchia, C, Oliva, L., Longo, P. and Grassi, A., "Catalysts for Syndiotactic Specific Polymerization of Styrene - A Tentative Interpretation of Some Experimental Data", Mahvmol. Chem., 192, 223 (1991).