Metallocene complexes and methods for producing olefin polymers
A metallocene complex and olefin polymerization technology, applied in the direction of metallocene, chemical instruments and methods, silicon organic compounds, etc., can solve the problems of not having sufficient performance, and achieve high intake efficiency, high intake efficiency, and flexible Excellent performance in resistance or impact resistance
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[0228] (3) Preparation method of catalyst
[0229] In the method for producing a catalyst for olefin polymerization according to the present invention, the method of contacting component (A), component (B) and component (C) is not particularly limited, but includes, for example, the following methods:
[0230] (i) a method of contacting component (A) with component (B), and then adding component (C);
[0231] (ii) a method of contacting component (A) with component (C) and then adding component (B);
[0232] (iii) a method of contacting component (B) with component (C), and then adding component (A);
[0233] (iv) A method of simultaneously bringing the components (A), (B) and (C) into contact.
[0234] Furthermore, each component may be used as a mixture of different kinds of components, or may be contacted individually in a different order. This contacting can take place not only during the catalyst preparation but also during the prepolymerization of the olefin or during...
Embodiment 1
[0335] Metallocene Complex A: Silacyclobutylenebis[2-(5-methyl-2-furyl)-4-phenyl-1,5,6,7-tetrahydro-s-dicyclopentadiene Synthesis of alkenen-1-yl]zirconium dichloride
[0336] (1-1) Synthesis of 4-bromo-1,2,3,5-tetrahydro-s-dicyclopentadiene (4-bromo-1,2,3,5-tetrahydro-s-indacene)
[0337] 4-Bromo-3,5,6,7-tetrahydro-2H-s-benzobisinden-1-one (4-Bromo-3,5,6,7-tetrahydro-2H-s-indacen-1 -one) (45 g) was added to a suspension of aluminum chloride (81 g) and chloroform (300 mL). After stirring at room temperature for 1 hour, a solution of bromine (13 mL) in chloroform (40 mL) was added dropwise under cooling in an ice bath, and reacted at room temperature day and night. After the reaction was completed, the reaction solution was poured into 1N hydrochloric acid-ice water, followed by stirring. The organic layer was separated, washed with 1N hydrochloric acid, water and saturated brine, and dried over magnesium sulfate. The solvent was removed by distillation under reduced pressu...
Embodiment 2
[0371] Metallocene Complex B: Silacyclopentylenebis[2-(5-methyl-2-furyl)-4-phenyl-1,5,6,7-tetrahydro-s-dicyclopentadiene Synthesis of alkenen-1-yl]zirconium dichloride (metallocene complex B)
[0372] (2-1) 1,1-bis[2-(5-methyl-2-furyl)-4-phenyl-1,5,6,7-tetrahydro-s-dicyclopentadieneacene Synthesis of -1-yl]silacyclobutane
[0373] 4-Phenyl-6-(5-methyl-2-furyl)-1,2,3,5-tetrahydro-s-dicyclopentadieneacene (5.0g, 16.0mmol) was dissolved in tetrahydrofuran (75mL), and added dropwise n-butyllithium in n-hexane (1.58M, 11mL) at -78°C. After stirring for 3 hours while gradually raising the temperature to room temperature, N-methylimidazole (0.06 mL) and 1,1-dichlorosilacyclobutane (1.1 mL, 8.4 mmol) were added dropwise at -78°C, and The resulting solution was stirred for 2.5 hours while gradually raising the temperature to room temperature. The organic layer was separated by adding water, dried over magnesium sulfate, and after distilling off the solvent under reduced pressure, t...
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