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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., and achieve the effect of improving catalyst activity and activity

Inactive Publication Date: 2008-03-05
HYOSUNG 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

[0050] 0.0129 g of palladium acetate, 0.0366 g of 1,3-bis[bis(2-methoxy-5-methylphenyl)phosphino]propane (BIBMAPP) were dissolved in a mixed solvent containing 2249 ml of acetic acid and 417 ml of water. This solution was charged into a stainless steel autoclave which was replaced with nitrogen after removing the air by vacuum. The autoclave was closed, then the contents were stirred at 700 rpm while heating. When the inner temperature reached 90° 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 65 bar. Keep the conditions of internal temperature 90°C and internal pressure 65 bar, and keep stirring for 1 hour. 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 pressure at room temperature to 80° C. to obtain 73 g of a polymer.

[0051] Depend on 13 As a result o...

Embodiment 2

[0054] 0.0129 g of palladium acetate, 0.0366 g of 1,3-bis[bis(2-methoxy-5-methylphenyl)phosphino]propane (BIBMAPP) were dissolved in a mixed solvent containing 2249 ml of acetic acid and 417 ml of water. This solution was charged into a stainless steel autoclave which was replaced with nitrogen after removing the air by vacuum. The autoclave was closed, then the contents were stirred at 700 rpm while heating. When the inner temperature reached 90° 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 90°C and internal pressure 70 bar, and keep stirring for 15 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 pressure at room temperature to 80°C to obtain 890.3 g of a polymer.

[0055] Depend on 13 As a resul...

Embodiment 3

[0058] 0.0236 g of palladium acetate, 0.0674 g of 1,3-bis[bis(2-methoxy-5-methylphenyl)phosphino]propane (BIBMAPP) were dissolved in a mixed solvent containing 1350 ml of acetic acid and 250 ml of water. This solution was charged into a stainless steel autoclave which was replaced with nitrogen after removing the air by vacuum. The autoclave was closed, then the contents were stirred at 700 rpm while heating. When the inner temperature reached 90° 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 45 bar. Keep the conditions of internal temperature 90° C. and internal pressure 45 bar, and keep stirring for 1 hour. 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 pressure at room temperature to 80°C to obtain 183.9 g of a polymer.

[0059] Depend on 13 As a resul...

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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 wherein an organometallic complex comprising acetate-palladium and 1,3-bis[bis(2-methoxy-5-methylphenyl)phosphino]propane is used as a catalyst component, and a mixed solvent of 70 to 90 vol% of acetic acid and 10 to 30 vol% of water is used as a liquid medium.

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 is An organometallic complex containing (a) a transition metal compound of Group 9, Group 10, or Group 11 and (b) a ligand having an element of Group 15, said (b) component being 1,3- Bis[bis(2-methoxy-5-methylphenyl)phosphino]propane; the liquid medium is a mixed solvent containing 70% to 90% by volume of acetic acid and 10% to 30% by volume of water . Background technique [0002] A copolymer of carbon monoxide and an ethylenically unsaturated com...

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 曺海硕崔锺仁沈载润尹圣均张真永金宪洙
Owner HYOSUNG CORP
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