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Method for preparing C9 petroleum resin with light color and high softening-point

A technology of petroleum resin and high softening point, which is applied in chemical instruments and methods, organic chemistry, hydrocarbons, etc., and can solve the problems of high resin hue and inability to be widely used

Active Publication Date: 2012-09-26
HENGHE MATERIALS & SCI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The process of preparing C9 petroleum resin by the above method generally has a good yield, but the resin hue is relatively high, and the softening point is usually ≤130°C, so it cannot be widely used in adhesive industries that require higher working temperatures, such as ink, printing, special tires, etc. field

Method used

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  • Method for preparing C9 petroleum resin with light color and high softening-point
  • Method for preparing C9 petroleum resin with light color and high softening-point

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] C9 raw material A and DCPD raw material B were mixed at a mass ratio of 2.5:1 to obtain reaction raw material C. In the reaction kettle with forced circulation, put the above-mentioned raw materials and let them react at 180°C for 30 hours to obtain a polymerization solution, then put the polymerization solution into the heat preservation kettle, and then add a compound antioxidant with a mass ratio of 2‰ of the polymerization solution agent [AT-10:AT-168:antioxidant 300 (mass ratio)=1:1:1], and then kept at 180°C for 10 hours. The above-mentioned polymerization liquid is transported into a vacuum rectification tower with a vacuum degree of -0.070 MPa at the top of the tower and a vacuum rectification tower with a top temperature of 100° C. for solvent removal, and a resin liquid is obtained from the bottom of the tower. The above-mentioned resin liquid is transported into the stripping tower, and the operating pressure of the stripping tower is controlled at -0.080MPa,...

Embodiment 2

[0065] C9 raw material A and DCPD raw material B are mixed at a mass ratio of 3:1 to obtain reaction raw material C. In a reaction kettle with forced circulation, after putting in the above raw materials, let them react at 210°C for 25 hours to obtain a polymerization solution, then put the polymerization solution into the heat preservation kettle, and then add a compound antioxidant with a mass ratio of 3‰ of the polymerization solution. agent [AT-10:AT-168:antioxidant AT-245 (mass ratio)=1:1:1], and then kept at 180°C for 12 hours. The above-mentioned polymerization liquid is transported into a vacuum rectification tower with a vacuum degree of -0.075 MPa at the top of the tower and a vacuum rectification tower with a top temperature of 90° C. for solvent removal, and a resin liquid is obtained from the bottom of the tower. The above-mentioned resin liquid is transported into the stripping tower, and the operating pressure of the stripping tower is controlled at -0.080MPa, a...

Embodiment 3

[0067] C9 raw material A and DCPD raw material B are mixed at a mass ratio of 4:1 to obtain reaction raw material C. In a reaction kettle with forced circulation, after putting in the above raw materials, let them react at 240°C for 22 hours to obtain a polymerization solution, then put the polymerization solution into the heat preservation kettle, and then add a compound antioxidant with a mass ratio of 5‰ of the polymerization solution. agent [AT-10:AT-168:antioxidant 300 (mass ratio)=1:1:1], and then kept at 180°C for 10 hours. The above-mentioned polymerization liquid is transported into a vacuum rectification tower with a vacuum degree of -0.080 MPa at the top of the tower and a vacuum rectification tower with a top temperature of 120° C. for solvent removal, and a resin liquid is obtained from the bottom of the tower. The above-mentioned resin liquid is transported into the stripping tower, and the operating pressure of the stripping tower is controlled at -0.090MPa, and...

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Abstract

The invention relates to a method for preparing C9 petroleum resin with light color and high softening-point, comprising the following steps: mixing C9 raw material A with DCPD raw material according to the mass ratio of 1.5-6:1 to obtain raw material C; making the raw material C react at 180-240 DEG C for 20-30 hours to obtain polymerization solution; putting the polymerization solution into a temperature preserving kettle, adding composite antioxidant to the polymerization solution, and preserving the temperature of the mixture at 180-200 DEG C for 10-15 hours; putting the mixture into a decompressing rectifying tower to eliminate the solvent; and putting the mixture from which the solvent is eliminated into a stripping tower to distill the steam and extract the low polymer to obtain the light color high softening-point C9 petroleum resin. The method is easy to operate and suitable for the industrial production of the C9 petroleum resin with light color and high softening-point; thecost of the raw materials of the C9 petroleum resin is more economical than the cost of the raw materials of the traditional C9 petroleum resin, thus the C9 petroleum resin is suitable for industrialproduction; and the prepared DCPD modified C9 petroleum resin has the advantages of higher softening-point, light color, good compatibility and the like, thereby having wider application range.

Description

technical field [0001] The invention belongs to the field of preparation of C9 petroleum resin, in particular to a preparation method of C9 petroleum resin with light color and high softening point. Background technique [0002] C9 petroleum resin is an oil-soluble functional resin firstly developed by Japan in the 1960s. Petroleum resin is a solid or viscous liquid low-molecular, non-plastic polymer obtained by polymerizing the by-product C5 and C9 fractions in the cracking ethylene process as the main raw material. Its relative molecular weight is generally less than 2000, and it has the characteristics of low acid value, good miscibility, low melting point, good adhesion, water resistance and chemical resistance. It has been widely used in road marking paint, ink, rubber processing, Adhesives and other fields, according to the monomer and molecular structure of the resin, can be divided into aromatic petroleum resin, aliphatic petroleum resin and alicyclic petroleum resi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C2/38
Inventor 孙向东王斌
Owner HENGHE MATERIALS & SCI TECH CO LTD
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