A kind of production method of copolymerized petroleum resin

A technology of copolymerized petroleum resin and production method, which is applied in the field of organic chemical production, can solve problems such as high softening point and deep hue, and achieve the effects of reducing energy consumption, light color number, and improving stability

Active Publication Date: 2021-08-27
FUSHUN QILONG CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the petroleum resin product that this invention makes has a higher softening point and darker hue

Method used

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  • A kind of production method of copolymerized petroleum resin
  • A kind of production method of copolymerized petroleum resin

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Experimental program
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Effect test

specific Embodiment 1

[0026] A kind of production method of novel copolymerized petroleum resin mainly comprises following processing steps:

[0027] (1) Preparation of raw material A: Ethylene tar raw material is subjected to vacuum distillation, the distillation gas phase temperature is 240°C, and the pressure is -0.09MPa to obtain C9~C11 fractions, and then rectified to remove naphthalene, and the tower top temperature is 100 at the pressure -0.08Mpa Fraction at ~120 °C. Obtain C9~C10 fraction as raw material A;

[0028] (2) Preparation of raw material B: cracking C5 raw material, thermal polymerization reaction, the process conditions are reaction temperature 90 ° C, reaction pressure 0.1 MPa to polymerize cyclopentadiene into dicyclopentadiene, and then remove dicyclopentadiene by rectification ene to obtain high-purity C5 as raw material B; the process conditions for the rectification to remove dicyclopentadiene are as follows: under the pressure of 0.11Mpa, the fraction with a temperature o...

specific Embodiment 2

[0035] Under the experimental conditions of specific example 1, the results of the impact of raw materials A and B in different weight ratios on the obtained copolymerized petroleum resin are shown in the appendix of the description. figure 1 Comparison of data in the table.

[0036] From figure 1 It can be seen that under the condition of keeping the amount of raw material A constant, with the increase of raw material B, the softening point presents a downward trend, the color number gradually becomes lighter, and the viscosity gradually increases; according to market demand, the mass ratio of raw material A to raw material B 10:4 is the best process condition.

specific Embodiment 3

[0038] Under the experimental conditions of specific example 1, the results of the influence of cresol and styrene in different weight ratios on the obtained copolymerized petroleum resin are shown in the appendix of the description. figure 2 Comparison of data in the table.

[0039] From figure 2 Visible, under the situation that keeps raw material A, raw material B, diluent addition constant, change the ratio of cresol and styrene: under the situation that the total addition of cresol and styrene is constant, the addition of cresol is much, The color number is darker and the softening point is lower; more styrene is added, the color number is lighter, the softening point is higher, and the viscosity and molecular weight are higher; in experiment 4, the total addition of cresol and styrene is increased, and the softening point shows a downward trend , the color is further deepened, and the viscosity and molecular weight are gradually reduced. On the whole, the experimenta...

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Abstract

The invention relates to a production method of a novel copolymerized petroleum resin. Cracking C5 and ethylene tar are used as raw materials for vacuum distillation. Raw material A: raw material B: cresol: styrene: diluent is mixed according to the mass ratio of 10:4: (1~1.5): (1~1.5):2, A gaseous boron trifluoride catalyst is added to the polymerization reaction. In the present invention, cresol and styrene are used as modifiers, and the obtained copolymerized petroleum resin has strong stability, low softening point, and light color, and the amount of cresol and styrene can be adjusted to adjust the molecular weight of the resin more flexibly and effectively, so as to adjust the resin The viscosity performance after glue making can meet the needs of high-end customers.

Description

technical field [0001] The invention belongs to the technical field of organic chemical production, and in particular relates to a production method of novel copolymerized petroleum resin. Background technique [0002] Petroleum resin is a solid or viscous liquid polymer with relatively low molecular weight, which is obtained by polymerization of the by-product C5 / C9 fraction of the ethylene plant as the main raw material. It has the characteristics of low acid value, good miscibility, low melting point, good adhesion, water resistance and chemical resistance, and can be widely used in various industries and fields such as rubber, adhesives, coatings, papermaking, and inks. [0003] At present, petroleum resin can be simply divided into C5 petroleum resin, C9 petroleum resin, copolymerized petroleum resin, coumarone resin, etc. The commonly used preparation method is to use C5 fraction and C9 fraction as raw materials, pretreatment, catalytic polymerization or thermal polyme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F212/08C08F6/12C08F2/38C08F2/00
CPCC08F2/00C08F2/38C08F6/12C08F240/00C08F212/08
Inventor 李鸿郝守增程广慧于星玉廉燕胡鑫
Owner FUSHUN QILONG CHEM
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