Catalyst composition and method for preparing hydrocarbon resin by using same

A technology of hydrocarbon resin and catalyst, applied in the field of catalyst composition, which can solve the problems of product quality deterioration, corrosion, large waste water, etc., and achieve the effect of high conversion rate

Active Publication Date: 2021-10-08
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Examples of Lewis acids include AlX3, BX3 (X=F, Br, Cl, I), etc. There is a problem that these Lewis acids are corrosive, and Halogen components such as HCl and HF are generated during quenching and remain in the product to deteriorate product quality
In addition, additional washing with water is required and a large amount of waste water is generated
[0007]Meanwhile, cationic polymerization, which is usually used for the polymerization of hydrocarbon resins, is very sensitive to moisture and impurities, with the following situation: During the growth of the polymer chain, due to a small amount of Moisture or impurities react to terminate the reaction, or chain transfer occurs, so it is difficult to prepare resins with high molecular weight
Furthermore, in the case of preparing a catalyst using a conventional metal complex prepared from a silver reagent, since it is difficult to completely remove the lithium salt, sodium salt, potassium salt, magnesium salt, or silver salt generated during the preparation, there is a problem that the salt may Included in the polymerization reaction as an impurity, and the activity of the catalyst may also deteriorate

Method used

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  • Catalyst composition and method for preparing hydrocarbon resin by using same
  • Catalyst composition and method for preparing hydrocarbon resin by using same
  • Catalyst composition and method for preparing hydrocarbon resin by using same

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preparation example Construction

[0069] For the preparation of the hydrocarbon resin, as long as the C5 unsaturated hydrocarbon monomer or the C9 unsaturated hydrocarbon monomer used in the technical field is selected, any type can be appropriately selected and applied in the present invention.

[0070] In addition, the monomer mixture may also include isobutene, 2-methyl-1-pentene, 2-methyl-2-pentene, 1,3-hexadiene, 1,4-hexadiene and bicyclic One or more of pentadiene.

[0071] In the present invention, the catalyst represented by Formula 1 can be used at 0.01 wt % or more, 0.02 wt % or more, 0.2 wt % or less, 0.1 wt % or less, 0.05 wt % or less, or 0.03 wt % or less based on the total weight of monomers.

[0072] As described above, the catalyst represented by Formula 1 and the additive may be dissolved in a halogenated hydrocarbon solvent for use. In this case, the catalyst represented by Formula 1 may be used at 5 to 50 ppm by weight or 10 to 40 ppm by weight based on the catalyst composition. Also, the...

preparation example 1

[0082] In the glove box, 1 g of [H(Et 2 O) 2 ][B(C 6 f 5 ) 4 ] into a round bottom flask, and put 10 mL of dichloromethane into it. At room temperature, 5 equivalents of anhydrous butyl ether (purchased from Sigma Aldrich) were put into the solution and stirred for 30 minutes. After stirring, all solvent was removed under vacuum. The white powder thus obtained was washed by 5 mL x three times using anhydrous hexane, and then dried again under vacuum to obtain [H(nBu 2 O) 2 ][B(C 6 f 5 ) 4 ].

Embodiment 1

[0084] 5 mL of α-methylstyrene monomer and 5 mL of DCM solvent were injected into the vial, the catalyst of Preparation Example 1 (0.02% by weight based on α-methylstyrene) was dissolved in DCM and added thereto, and Additive acetonitrile represented by Formula 2 (the same equivalent as the catalyst of Preparation Example 1) was added, followed by polymerization in an ethanol bath kept at 0° C. for 1 hour. After the reaction was finished, the obtained product was precipitated in excess methanol, and the precipitate was separated by filtration under reduced pressure, dried at room temperature for 24 hours, and at 50°C for 1 hour in vacuum to obtain a hydrocarbon resin.

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Abstract

The present invention relates to: a catalyst composition comprising an oxonium ion-based catalyst and an additive; and a method for preparing hydrocarbon resin by using same.

Description

technical field [0001] Cross References to Related Applications [0002] This application claims the benefit of priority based on Korean Patent Application No. 2019-0104242 filed on August 26, 2019, the entire contents of which are incorporated herein by reference. technical field [0003] The present invention relates to a catalyst composition comprising an oxonium ion catalyst and an additive and a method for preparing hydrocarbon resins using the catalyst composition. Background technique [0004] Hydrocarbon resins are low-molecular-weight thermoplastic resins prepared using unsaturated hydrocarbons contained in pyrolysis oils such as naphtha as raw materials. Hydrocarbon resins have a hard, brittle solid phase in a viscous liquid phase, and show colors such as colorless and transparent, such as light yellow and dark brown, depending on the type of monomer. Hydrocarbon resins are safe to ultraviolet rays (UV), have tack-imparting properties, and are used to impart ta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F10/00C08F112/12C08F2/44C08F4/52C08K5/315C08K5/3432C08K5/06
CPCC08F10/00C08F112/12C08F2/44C08F4/52C08K5/315C08K5/3432C08K5/06C08F2410/01C08F4/54C08F2/38C08F12/00C08F36/00C07F5/027C08F112/08
Inventor 崔景信金元熙高永洙郑荷莹A·C·卡林诺
Owner LG CHEM LTD
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