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Preparation method of piperylene modified DCPD petroleum resin

A technology of petroleum resin and pentadiene, which is applied in the field of preparation of piperylene-modified DCPD petroleum resin, can solve the problems of high raw material cost, deep hue of petroleum resin products, and decline of economic benefits of petroleum resin, and achieve high economic benefits , the effect of simple operation

Active Publication Date: 2009-12-30
NINGBO YONGHUA RESIN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the above methods, petroleum resin products are often dark in color, poor in compatibility with rubber, etc., or the economic benefits of petroleum resin are reduced due to high raw material costs

Method used

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  • Preparation method of piperylene modified DCPD petroleum resin

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The raw material containing 60% piperylene and the raw material containing 65% DCPD are mixed at a mass ratio of 1:1 as raw material. First, put the above-mentioned proportioned raw materials into a reaction kettle with a stirrer in advance, and then put in the catalyst anhydrous aluminum trichloride accounting for 1% of the raw material mass, and make the materials react at 60° C. for 5 hours to obtain a polymerization liquid. The polymerization liquid is decompressed to remove the solvent in a rectification tower with an operating pressure of -0.06MPa. The temperature of the tower bottom is 260 ° C, the temperature of the top of the tower is 150 ° C, and the reflux ratio is 5. The bottom of the tower contains petroleum resin and part of the solvent. Polymer resin solution. After the resin liquid is extracted oligomers by a stripping tower, the product petroleum resin is obtained.

Embodiment 2

[0044] The raw material containing 60% piperylene and the raw material containing 65% DCPD are mixed at a mass ratio of 1:1.5 as the raw material. First, put the above-mentioned proportioned raw materials into a reaction kettle with a stirrer in advance, and then put in the catalyst anhydrous aluminum trichloride accounting for 1.5% of the raw material mass, and make the materials react at 60° C. for 5 hours to obtain a polymerization liquid. The polymerization liquid is decompressed to remove the solvent in a rectification tower with an operating pressure of -0.07MPa. The temperature of the tower bottom is 260 ° C, the temperature of the top of the tower is 150 ° C, and the reflux ratio is 5. The bottom of the tower contains petroleum resin and part of the solvent. Polymer resin solution. After the resin liquid is extracted oligomers by a stripping tower, the product petroleum resin is obtained.

Embodiment 3

[0046] The raw material containing 60% piperylene and the raw material containing 65% DCPD are mixed at a mass ratio of 1:2 as raw material. First, put the above-mentioned proportioned raw materials into a reaction kettle with a stirrer in advance, and then put in the catalyst anhydrous aluminum trichloride accounting for 2% of the raw material mass, and make the materials react at 50° C. for 4 hours to obtain a polymerization liquid. The polymerization liquid is decompressed to remove the solvent in a rectification tower with an operating pressure of -0.08MPa. The temperature of the tower bottom is 260 ° C, the temperature of the top of the tower is 150 ° C, and the reflux ratio is 5. The bottom of the tower contains petroleum resin and part of the solvent. Polymer resin solution. After the resin liquid is extracted oligomers by a stripping tower, the product petroleum resin is obtained.

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Abstract

The invention relates to a preparation method of piperylene modified DCPD petroleum resin, comprising the following steps: adopting piperylene and dicyclopentadiene (DCPD)as raw materials, adding the raw materials in a reaction kettle with a stirrer, adding anhydrous aluminium trichloride used as catalyst to ensure the raw materials to react at 40-60 DEG C for 3-6h, and obtaining polymer solution; introducing the polymer solution in a vacuum distillation column to remove the solvent; after the distillation, obtaining reaction solvent from the tower top and resin solution form the tower bottom; sending the resin solution to a stripping tower to perform steam distillation and extraction and obtain piperylene modified DCPD petroleum resin. The preparation method has simple operation, the raw material cost of the modified DCPD petroleum resin is lower than that of traditional DCPD resin products so that the modified DCPD petroleum resin has higher economic effect and is applicable to the industrialized production; in addition, the prepared modified DCPD petroleum resin has lighter colour and the colour number is about colour (Fe-Co scale) 5-6; the petroleum resin has better softening point and higher yield and the compatibility between the petroleum resin and EVA resin, rubber or other substances is obviously improved.

Description

technical field [0001] The invention belongs to the field of preparation of DCPD petroleum resin, in particular to a preparation method of piperylene-modified DCPD petroleum resin. Background technique [0002] Petroleum resin is a solid or viscous liquid polymer with relatively low molecular weight, which is obtained by polymerizing 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. At present, 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, it can be divided into aromatic petroleum resin, aliphatic petroleum resin and alicyclic petroleum resin. [0003] In the by-product C5 fraction, piperylene is its main component, and its crude content is generally between 20% and 40%. After simple rectificati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F240/00
Inventor 孙向东陈亚东汪伟王斌
Owner NINGBO YONGHUA RESIN
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