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Solid titanium catalyst ingredient, catalyst for olefin polymerization, and method of polymerizing olefin

A technology for titanium catalyst and olefin polymerization, which is applied in the field of polymerized solid titanium catalyst components and catalysts for olefin polymerization to achieve excellent rigidity and reduce manufacturing costs

Active Publication Date: 2010-10-27
MITSUI CHEM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in Patent Documents 7 and 8, there is no description about the molecular weight distribution of olefin polymers at all.

Method used

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  • Solid titanium catalyst ingredient, catalyst for olefin polymerization, and method of polymerizing olefin
  • Solid titanium catalyst ingredient, catalyst for olefin polymerization, and method of polymerizing olefin
  • Solid titanium catalyst ingredient, catalyst for olefin polymerization, and method of polymerizing olefin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0255] (Preparation of Solid Titanium Catalyst Component (α1))

[0256] After fully carrying out nitrogen replacement to the high-speed stirring device (manufactured by Special Machine Chemical Industries) with an internal volume of 2 liters, 700 ml of purified decane, 10 g of commercially available magnesium chloride, 24.2 g of ethanol and trade name Rheodol SP-S20 ( 3 g of sorbitan distearate (produced by Kao Co., Ltd.), was heated up while stirring the suspension, and the suspension was stirred at 800 rpm at 120° C. for 30 minutes. Next, the suspension was stirred at a high speed so that no sediment was produced, and at the same time, using a Teflon (registered trademark) tube with an inner diameter of 5 mm, it was transferred to 2 liters of glass containing 1 liter of purified decane cooled to -10° C. in a flask (with a stirrer). The solid formed by pipetting was filtered and washed well with purified n-heptane to obtain a solid adduct in which 2.8 mol of ethanol was coor...

Embodiment 2

[0264] (Preparation of Solid Titanium Catalyst Component (α2))

[0265] In addition to adding 0.13 moles of 3,6-dimethylcyclohexane-1,2-dicarboxylate diisobutyl ester (cis isomer, trans isomer mixture), 0.04 mole of cyclohexane-1 , Except for diisobutyl 2-dicarboxylate (cis isomer, trans isomer mixture), the same procedure as in Example 1 was carried out to obtain a solid titanium catalyst component (α2).

[0266] (official aggregation)

[0267] Propylene was polymerized in the same manner as in Example 1 except that the solid titanium catalyst component (α2) was used instead of the solid titanium catalyst component (α1). The results are shown in Table 1.

Embodiment 3

[0269] (Preparation of Solid Titanium Catalyst Component (α3))

[0270] In addition to adding 0.12 moles of 3,6-dimethylcyclohexane-1,2-dicarboxylate diisobutyl ester (cis isomer, trans isomer mixture), 0.06 mole of cyclohexane-1 , Except for diisobutyl 2-dicarboxylate (cis isomer, trans isomer mixture), the same procedure as in Example 1 was carried out to obtain a solid titanium catalyst component (α3).

[0271] (official aggregation)

[0272] Propylene was polymerized in the same manner as in Example 1 except that the solid titanium catalyst component (α3) was used. The results are shown in Table 1.

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Abstract

A solid titanium catalyst ingredient (I) comprising titanium, magnesium, a halogen, a specific cyclic ester compound (a), and a specific cyclic ester compound (b); a catalyst for olefin polymerization which contains the catalyst ingredient (I); and a method of polymerizing an olefin using the catalyst for olefin polymerization. According to the solid titanium catalyst ingredient, catalyst for olefin polymerization, and process for olefin polymer production, an olefin polymer having high stereoregularity and a wide molecular-weight distribution can be produced with high catalytic activity. An olefin polymer which, for example, is excellent not only in moldability including high-speed stretchability and high-speed moldability but also in rigidity can be produced. Furthermore, production cost can be reduced.

Description

technical field [0001] The present invention relates to solid titanium catalyst components suitable for the polymerization of olefins, especially for the polymerization of alpha-olefins. In addition, the present invention relates to a catalyst for olefin polymerization containing the aforementioned solid titanium catalyst component. Furthermore, the present invention relates to an olefin polymerization method using the above catalyst for olefin polymerization. Background technique [0002] Conventionally, as catalysts for producing olefin polymers such as ethylene and α-olefin homopolymers and ethylene·α-olefin copolymers, catalysts comprising a titanium compound supported on magnesium halide in an active state are known. (Hereafter, the term "polymerization" may be used including copolymerization.) [0003] Known as such catalysts for olefin polymerization are: a catalyst containing titanium tetrachloride or titanium trichloride called a Ziegler-Natta catalyst; a catalyst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F4/654C08F10/00
CPCC08F10/00C08F110/06C08F4/651C08F4/6543C08F2500/18C08F2500/12C08F2500/03C08F4/6465C08F4/654C08F2/00
Inventor 松永和久津留和孝河北一光筱崎哲德
Owner MITSUI CHEM INC
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