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Process for producing polyketone

A manufacturing method and polyketone technology, applied in the field of polyketone manufacturing, can solve the problems of inability to obtain polymers and high-performance materials, etc.

Inactive Publication Date: 2008-03-05
HYOSUNG CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem with this method is that although the catalyst activity is high and polyketones with a certain high molecular weight can be obtained, even if the polymerization time is increased, a polymer with an intrinsic viscosity of 2 or more required as a high-performance material cannot be obtained.
Using this method, although polyketones can be obtained under relatively low temperature and low pressure conditions, polyketones with high intrinsic viscosity, which are necessary for high-performance materials, cannot be obtained.

Method used

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  • Process for producing polyketone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Dissolve 0.0140 g palladium acetate, 0.0398 g 1,3-bis[bis(2-methoxy-5-methylphenyl)phosphino]propane (BIBMAPP) and 0.0499 g trifluoroacetic acid with 0.4225 g benzothiazole In 100ml acetone. This solution was dissolved in a mixed solvent of 2497.5 ml of methanol and 1000 ppm of water, and the mixed solution was charged into a stainless steel autoclave which was replaced with nitrogen after deairing by vacuum. The autoclave was closed, then the contents were stirred at 800 rpm while heating. When the inner temperature reached 70° C., a mixed gas of carbon monoxide and ethylene in a molar ratio of 1:1.8 was added until the inner pressure of the autoclave was 100 bar. Keep the conditions of internal temperature 70° C. and internal pressure 100 bar, and keep stirring for 2 hours. After cooling, the gas in the autoclave was removed, and the contents were taken out. The reaction solution was filtered, washed several times with methanol, and then dried under reduced pressur...

Embodiment 2

[0060] Dissolve 0.0140 g of palladium acetate, 0.0398 g of 1,3-bis[bis(2-methoxy-5-methylphenyl)phosphino]propane and 0.0499 g of trifluoroacetic acid together with 0.4225 g of benzothiazole in 100 ml of acetone middle. This solution was dissolved in a mixed solvent of 2497.5 ml of methanol and 1000 ppm of water, and the mixed solution was charged into a stainless steel autoclave which was replaced with nitrogen after deairing by vacuum. The autoclave was closed, then the contents were stirred at 800 rpm while heating. When the inner temperature reached 80° C., a mixed gas of carbon monoxide and ethylene in a molar ratio of 1:2 was added until the inner pressure of the autoclave was 70 bar. Keep the conditions of internal temperature 80° C. and internal pressure 70 bar, and keep stirring for 2 hours. After cooling, the gas in the autoclave was removed, and the contents were taken out. The reaction solution was filtered, washed several times with methanol, and then dried und...

Embodiment 3

[0064]0.0140 g palladium acetate, 0.0398 g 1,3-bis[bis(2-methoxy-5-methylphenyl)phosphino]propane, 0.0249 g trifluoroacetic acid and 0.0215 g sulfuric acid were mixed with 0.4225 g benzothiazole Dissolve in 100ml acetone. This solution was dissolved in a mixed solvent of 2497.5 ml of methanol and 1000 ppm of water, and the mixed solution was charged into a stainless steel autoclave which was replaced with nitrogen after deairing by vacuum. The autoclave was closed, then the contents were stirred at 800 rpm while heating. When the inner temperature reached 70° C., a mixed gas of carbon monoxide and ethylene in a molar ratio of 1:1.8 was added until the inner pressure of the autoclave was 70 bar. Keep the conditions of internal temperature 70°C and internal pressure 70 bar, and keep stirring for 2 hours. After cooling, the gas in the autoclave was removed, and the contents were taken out. The reaction solution was filtered, washed several times with methanol, and then dried u...

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PUM

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Abstract

The present invention relates to a process for preparing polyketone with improved catalytic activity and intrinsic viscosity, and specifically a process for preparing polyketone, in which as a catalyst component, an organometallic complex comprising palladium acetate, 1,3-bis[bis(2-methoxy-5-methylphenyl)phosphino]propane, and an anion of an acid with pKa of 4 or lower, as a liquid medium, a mixed solvent of methanol and 1000 to 10000 ppm of water, and upon polymerization, benzothiazole or benzophenone is added.

Description

technical field [0001] The present invention relates to a method for producing polyketones, in which the activity of the catalyst is improved and the intrinsic viscosity of the polyketones produced is increased. Specifically, the method for producing polyketones involved in the present invention is a method for producing polyketones by copolymerizing carbon monoxide and ethylenically unsaturated compounds in a liquid medium in the presence of a catalyst; the method for producing polyketones is characterized in that the catalyst contains The organometallic complexes of the following (a), (b) and (c), said (a) being a transition metal compound of Group 9, Group 10 or Group 11, said (b) having The ligand of the element of Group 15, said (c) is an anion of an acid with a pKa of 4 or less; said (b) component is 1,3-bis[bis(2-methoxy-5-methylbenzene base) phosphino] propane. Background technique [0002] A copolymer of carbon monoxide and an ethylenically unsaturated compound, e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G67/02
CPCC08G67/02C08G2/18C08G2/06C08F216/16
Inventor 沈载润曺海硕崔锺仁尹圣均张真永金宪洙
Owner HYOSUNG CHEM CORP
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