Polyester compound for preparing olefine polymerizing catalyst

A technology of ester compounds and compounds, applied in the field of new compounds, can solve the problems of narrow molecular weight distribution of polypropylene

Inactive Publication Date: 2003-08-20
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This dibasic carboxylic acid ester compound obtains a solid catalyst component, and the catalyst formed with the cocatalyst component alkylaluminum compound and the external electron donor organosilane has high polymerization activity when used for propylene polymerization, and The stereoregularity of the obtained propylene polymer is high, but the molecular weight distribution of the obtained polypropylene is narrow

Method used

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  • Polyester compound for preparing olefine polymerizing catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0252] 4. The isotacticity of the polymer is determined by the heptane extraction method (heptane boiling extraction for 6 hours). Embodiment 1 9, the synthesis of 9-two (benzyl carboxymethyl) fluorene

[0253] (1) Synthesis of 9,9-dimethylolfluorene (see CN1141285A for its preparation method) 9g (0.3mol) paraformaldehyde (vacuum dehydration 8h) by adding 60ml dimethyl sulfoxide (DMSO, using CaH 2 Remove water) and the sodium ethylate solution after the reaction of 0.4gNa and 8ml absolute ethanol, and ice will be cooled. Under stirring, 100 ml of DMSO solution containing 16.6 g of fluorene (0.1 mol, dehydrated in vacuum for 8 h) was added within 30 seconds, and reacted for 10 min.

[0254] Add hydrochloric acid to terminate the reaction, and make the solution neutral, pour it into 300ml saturated brine, extract with ethyl acetate, separate the organic phase, wash twice with saturated brine, and dry over anhydrous sodium sulfate. The solvent was removed, and toluene was recry...

Embodiment 2

[0264] 7.25~7.75 (m, 18H, aromatic ring hydrogen) Example 2. Synthesis of 2-isopropyl-2-isopentyl-1,3-dibenzylcarboxypropane

[0265] (1) Synthesis of 2-isopropyl-5-methyl-2-hexenal (see CN1036846C for its preparation method)

[0266] 207g of isovaleraldehyde and 26ml of OH - Form Amberlite IRA910 resin (manufactured by Rohm & Hass) was heated to reflux. Remove the generated water with a water separator, stop the reaction after collecting about 26ml of water, and filter out the resin. Distill under reduced pressure and collect fractions at 85-90°C / 20mmHg.

[0267] (2) Synthesis of 2-isopropyl-5-methylhexanal

[0268] Add 70ml of ethanol, 1ml of saturated NaHCO to 10g of 2-isopropyl-5-methyl-2-hexenal 3 solution and 0.25 g of 10% Pd on carbon support. Access to N 2 , then pass into H 2 , means filled with graduated H 2 connected to the burette. The reaction was stirred at normal temperature and pressure until H 2 The absorption reaches the calculated value. Filter an...

Embodiment 3

[0282] 7.38~8.02 (m, 10H, aromatic ring hydrogen) embodiment 3.2-isopropyl-2-isopentyl-1,3-dipropylene carboxypropane synthesis

[0283] Add 7.5ml of acrylic acid (0.11mol) and 30ml of toluene to 9.4g of 2-isopropyl-2-isoamyl-1,3-propanediol (0.05mol) prepared by the method of Example 2. After stirring evenly, add 0.2ml concentrated sulfuric acid. Heat to reflux for 7h, and use a water separator to remove the water generated by the reaction during the reaction.

[0284] Cool to 70°C, neutralize to alkaline with saturated sodium carbonate solution, extract with ethyl acetate, wash the organic phase with saturated brine until neutral, and dry over anhydrous sodium sulfate. The solvent was removed, and 2-isopropyl-2-isopentyl-1,3-dipropylenecarboxypropane was obtained as a light yellow liquid by GF254 silica gel column chromatography with a yield of 65%.

[0285] 2-isopropyl-2-isopentyl-1,3-dipropylenecarboxypropane 1 H-NMR (CDCL 3 )δ(ppm):

[0286] 0.87 (d, 6H, methyl hydro...

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Abstract

The present invention relates to one kind of compound with two or more ester radicals, its preparation process and application in preparing olefine polymerizing catalyst.

Description

technical field [0001] The present invention relates to a new compound, the preparation method of the compound and the application of the compound in the preparation of olefin polymerization catalysts, more specifically, the present invention relates to a new compound containing two or more ester groups, the compound The preparation method and the application of the compound in the preparation of olefin polymerization catalysts. technical background [0002] Solid titanium catalyst components based on magnesium, titanium, halogens and electron donors for CH 2 =CHR Olefin polymerization is known, especially in the polymerization of α-olefins having 3 carbon atoms or more to give polymers with higher yield and higher stereoregularity, wherein the electron donor compound is One of the essential ingredients in catalyst components. The disclosed electron donor compounds include: a large number of compounds such as polycarboxylic acid, monocarboxylic acid ester or polycarboxylic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C67/14C07C69/007C07C69/013C07C69/28C07C69/54C07C69/618C07C69/76C07C69/78C07D307/42C07D307/68C08F4/654C08F110/06
CPCC07D307/68C07C69/618C07C69/76C07C69/007C08F110/06C07D307/42C07C69/78C07C69/16C07C2103/18C07C69/28C07C2603/18C08F4/651C08F2500/15C08F2500/04C08G63/02C08G63/682C08G63/688C08G63/692
Inventor 高明智王军李昌秀李季禹李天益
Owner CHINA PETROLEUM & CHEM CORP
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