Olefin polymerisation catalyst esp. for direct isotactic/elastomer polypropylene@ prodn
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...
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Zusammenfassung: | 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 (I) M = sub-Gp. III, IV, V or VI transition metal; and R1-R4 = allyl, benzyl, neophyl or neopentyl. |
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