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C9 petroleum resin and preparation method thereof

A technology of petroleum resin and catalyst, which is applied in the field of C9 petroleum resin and its preparation, can solve the problems of poor adhesion, poor appearance strength, poor compatibility, etc., to increase resin adhesion, improve performance, and resin compatibility. Good results

Active Publication Date: 2021-04-16
广东新华粤石化集团股份公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the molecular structure does not contain polar or functional groups, it has low chemical activity, good acid and alkali resistance, chemical resistance, and water resistance. It is mainly used in coatings, rubber additives, paper additives, and printing inks. And adhesives and other fields, but there are disadvantages such as poor bonding performance, high brittleness, and poor aging resistance
In addition, in the field of inks with petroleum resin as the main material, because petroleum resin contains a large number of double bonds, the cohesion is large, and the molecular structure does not contain polar or functional groups, so the compatibility is poor, the appearance strength is poor, and the reliability is average.

Method used

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  • C9 petroleum resin and preparation method thereof
  • C9 petroleum resin and preparation method thereof
  • C9 petroleum resin and preparation method thereof

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preparation example Construction

[0045] The second aspect of the present invention provides a kind of preparation method of described C9 petroleum resin, it comprises the following steps:

[0046] (1) Mix the C9 fraction, inert aromatic hydrocarbon solvent and maleic anhydride, add a strong acid catalyst at 0-100°C under an inert gas atmosphere, and polymerize for 1-8 hours;

[0047] (2) add terminator, terminate reaction;

[0048] (3) Distill and granulate to obtain.

[0049] Preferably, the terminator is selected from one or more of sodium hydroxide, calcium hydroxide, potassium hydroxide, barium hydroxide, sodium bicarbonate, sodium carbonate; more preferably, the terminator is sodium hydroxide .

[0050] In one embodiment, the inert gas is selected from one or more of nitrogen, helium, and argon.

[0051] Preferably, the inert gas is nitrogen.

[0052] In one embodiment, the step (1) includes: mixing the C9 fraction, an inert aromatic hydrocarbon solvent and maleic anhydride, adding a strong acid cata...

Embodiment 1

[0064] Embodiment 1 of the present invention provides a C9 petroleum resin, which is prepared from a C9 fraction with a distillation range of 130-210° C., maleic anhydride, an inert aromatic solvent and a strong acid catalyst.

[0065] The C9 fraction with a distillation range of 130-210°C is 1.5wt% styrene, 54.8wt% methylstyrenes, 24.6wt% indene and other inert aromatics.

[0066] The inert aromatic hydrocarbon solvent is xylene; the strong acid catalyst is BF 3 Liquid complex, the complex is ether.

[0067] The preparation method of described C9 petroleum resin is:

[0068] (1) In a 1000mL four-necked reaction flask equipped with stirring, thermometer and condenser tube, mix 200g of C9 fraction, 100g of inert aromatic hydrocarbon solvent and 10g of maleic anhydride, and add 1.5g of strong acid catalyst at 70°C under nitrogen atmosphere , the dropping time is 30min, the temperature is raised to 85°C, and the reaction is continued for 4h;

[0069] (2) Add 5wt% terminator aq...

Embodiment 2

[0075] Embodiment 2 of the present invention provides a C9 petroleum resin, which is prepared from a C9 fraction with a distillation range of 130-210° C., maleic anhydride, an inert aromatic solvent and a strong acid catalyst.

[0076] The C9 fraction with a distillation range of 130-210°C is 1.4wt% styrene, 49.2wt% methylstyrenes, 24.3wt% indene, 5.6wt% methylindene and other inert aromatics.

[0077] The inert aromatic hydrocarbon solvent is toluene; the strong acid catalyst is BF 3 Liquid complex, the complex is ether.

[0078] The preparation method of described C9 petroleum resin is:

[0079] (1) In a 1000mL four-necked reaction flask equipped with a stirring, thermometer and condenser tube, mix 200g of C9 fraction, 200g of inert aromatic hydrocarbon solvent and 10g of maleic anhydride, and add 1.5g of strong acid catalyst at 70°C under nitrogen atmosphere , the dropping time is 30min, the temperature is raised to 85°C, and the reaction is continued for 4h;

[0080] (2...

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Abstract

The invention relates to the technical field of petroleum resin, in particular to C9 petroleum resin and a preparation method thereof.The preparation raw materials of the C9 petroleum resin comprise C9 fraction with the distillation range of 130-210 DEG C, maleic anhydride, an inert aromatic solvent and a strong acid catalyst; wherein the weight ratio of the C9 fraction to the maleic anhydride is (20-40):1. The C9 petroleum resin provided by the invention does not contain or contains part of double bonds, has good resin compatibility, improves resin viscosity, increases resin adhesion, toughness and stability, improves use performance, improves wear resistance, heat resistance, elasticity and strength of a product, can be widely applied to the industries of printing ink and coatings, and is especially suitable for single offset printing ink. The invention relates to the field of high-end ink such as color rotary offset printing ink and intaglio printing ink.

Description

technical field [0001] The invention relates to the technical field of petroleum resins, more specifically, the invention relates to a C9 petroleum resin and a preparation method thereof. Background technique [0002] C9 petroleum resin is a by-product C9 distillate of the cracking ethylene plant as the main raw material. It is polymerized in the presence of a catalyst and is a thermoplastic viscous liquid or solid. It has a ring structure, contains a large number of double bonds, and has a large cohesive force. Because the molecular structure does not contain polar or functional groups, it has low chemical activity, good acid and alkali resistance, chemical resistance, and water resistance. It is mainly used in coatings, rubber additives, paper additives, and printing inks. And adhesives and other fields, but there are disadvantages such as poor bonding performance, high brittleness, and poor aging resistance. In addition, in the field of inks with petroleum resin as the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F240/00
Inventor 韩明杰黄明礼钟毅苑仁旭刘阳左洪亮陈炳琳黄杰
Owner 广东新华粤石化集团股份公司