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Catalysts for polymerization or copolymerization of alpha-olefins, catalyst components thereof, and processes for polymerization of alpha-olefins with the catalysts

A technology for olefin polymerization and catalysts, applied in the direction of organic compound/hydride/coordination complex catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of gel formation, melt mixing difficulties, and insufficient hydrogen response And other issues

Inactive Publication Date: 2005-09-28
TOHO TITANIUM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this case, there is also the following problem: if a propylene polymer with a relatively low molecular weight and a wide molecular weight distribution is to be produced, it is extremely difficult to melt-mix the low-molecular-weight propylene polymer and the high-molecular-weight propylene polymer uniformly, and it is easy to produce Gel generation and other issues
However, these methods have the problem of insufficient hydrogen response

Method used

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  • Catalysts for polymerization or copolymerization of alpha-olefins, catalyst components thereof, and processes for polymerization of alpha-olefins with the catalysts
  • Catalysts for polymerization or copolymerization of alpha-olefins, catalyst components thereof, and processes for polymerization of alpha-olefins with the catalysts
  • Catalysts for polymerization or copolymerization of alpha-olefins, catalyst components thereof, and processes for polymerization of alpha-olefins with the catalysts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0250] As Example 1, diethylaminotriethoxysilane was synthesized as follows. First, 100 mL of toluene, 10 mL of tetrahydrofuran, and 14.6 g (0.2 mol) of diethylamine were introduced into a four-necked flask (capacity of 1 L) equipped with a magnetically sealed stirrer and a dropping funnel, and mixed and stirred. On the other hand, 129 mL (0.22 mol) of Grignard reagent (titer=1.71 mol / L) was added to the dropping funnel. Then, while stirring, the Grignard reagent was added dropwise into the flask from the dropping funnel at room temperature (air cooling) over 30 minutes. After completion of the dropwise addition, the mixture was stirred at 60° C. for 1 hour to perform a Grignard exchange reaction. Then, 41.7 g (0.2 mol) of tetraethoxysilane previously introduced into the dropping funnel was dropped into the flask over 15 minutes. After completion of the dropwise addition, the reaction was carried out at 60° C. for 2 hours. At this point, solid ethoxymagnesium chloride preci...

Embodiment 2

[0252] As Example 2, diethylaminotri-n-propoxysilane was synthesized. In the synthesis method of Example 1, it synthesize|combined similarly except having used 52.9 g of tetra-n-propoxysilanes instead of 41.7g of tetraethoxysilanes. The appearance of the objective product was a colorless transparent liquid, the boiling point was 72.0° C. / 5 mmHg, and the GC purity was 97.5%.

Embodiment 3

[0254] As Example 3, dimethylaminotriethoxysilane was synthesized. In the synthesis method of Example 1, it synthesize|combined by the same method except having used 9.0 g of dimethylamines instead of 14.6 g of diethylamines. The appearance of the target object was a colorless transparent liquid, the boiling point was 81.0° C. / 48 mmHg, and the GC purity was 95.0%.

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Abstract

The invention has an object to provide a catalyst for polymerizing or copolymerizing an alpha -olefin, catalyst constituent thereof, and method of polymerizing alpha -olefins with the catalyst, for production of alpha -olefin polymers or copolymers with high hydrogen response, high polymarization reaction rate, high stereoregularity and excellent melt fluidity. The invention discloses a catalyst constituent of the catalyst for polymerizing or copolymerizing an alpha -olefin, represented by Formula 37 or 38: Formula 37 Si(OR<1>)3(NR<2>R<3>) (where in Formula 37, R<1> is a hydrocarbon group with 1 to 6 carbon atoms; R<2> is a hydrocarbon group with 1 to 12 carbon atoms or hydrogen; and R<3> is a hydrocarbon group with 1 to 12 carbon atoms) Formula 38 RNSi(OR<1>)3 (where in Formula 38, R<1> is a hydrocarbon group with 1 to 6 carbon atoms; and RN is a cyclicl amino group).

Description

technical field [0001] The present invention relates to an α-olefin polymerization or copolymerization catalyst useful for α-olefin polymerization or copolymerization, its catalyst component, and an α-olefin polymerization method using the catalyst. Background technique [0002] In recent years, solid catalyst components containing magnesium, titanium, halogen, and electron donors as essential components for polymerizing α-olefins, organometallic compounds of metals from Groups 1 to 3 of the periodic table, and highly active load-type catalysts containing electron donors The catalyst system is described in JP-A-57-63310, JP-A-57-63311, JP-A-58-83016, JP-A-59-58010, JP-A-60-44507, etc. Much has been made public. In addition, in JP-A-62-11705, JP-A-63-223008, JP-A-63-259807, JP-2-84404, JP-4-202505, JP-4- Publication No. 370103 and the like disclose a polymerization catalyst characterized in that a specific organosilicon compound is used as an electron donor. For example, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/00C07F7/02C08F4/44C08F4/654C08F10/00C08F10/06C08F110/06C08F210/06C08F297/00C08F297/08
CPCC08F297/00C08F297/08C08F297/083C07F7/025C08F10/06C08F110/06C08F210/06C08F10/00Y10S526/904C08F4/6567C08F4/6465C08F2500/12C08F2500/15C08F2500/04C08F2500/20C08F2500/17C08F4/16C08F4/656
Inventor 吉清元造福永俊史佐藤博町田利一池内博通矢野武文田中康裕
Owner TOHO TITANIUM CO LTD
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