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Synthetic method of terpene resin

The technology of a terpene resin and a synthesis method, which is applied in the field of deep processing of chemical resins, can solve the problem of high production cost and achieve the effect of reducing the cost of raw materials

Inactive Publication Date: 2013-03-13
WUZHOU SONGHUA AROMATIC CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a method for synthesizing terpene resins to solve the problem of high production cost of existing terpene resins

Method used

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  • Synthetic method of terpene resin

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Experimental program
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Effect test

Embodiment 1

[0011] The synthesis method of the present terpene resin comprises the following steps to synthesize 1 ton of terpene resin: after the catalyst is added into the solvent and mixed uniformly, the raw material is slowly added dropwise under low temperature conditions, where the raw material is heavy turpentine fractionated under vacuum decompression The product contains 65%-70% β-phellandrene, the solvent is toluene, 0.09 tons of anhydrous aluminum trichloride is added to 1.2 tons of toluene and mixed, and then 1.5 tons of 65%-70% content The raw material of β-phellandrene is slowly added dropwise to carry out low-temperature polymerization. The temperature in the reactor is controlled at -15°C ~ -5°C. After 4 hours, it is synthesized by hydrolysis, water washing, and distillation. Solid terpene resin.

Embodiment 2

[0013] The synthesis method of the present terpene resin comprises the following steps to synthesize 1 ton of terpene resin: after the catalyst is added into the solvent and mixed uniformly, the raw material is slowly added dropwise under low temperature conditions, where the raw material is heavy turpentine fractionated under vacuum decompression The product contains 75%-80% β-phellandrene, the solvent is toluene, 0.065 tons of anhydrous aluminum trichloride is added to 1.56 tons of toluene and mixed, and then 1.3 tons of 75%-80% content The raw material of β-phellandrene is slowly added dropwise to carry out low-temperature polymerization. The temperature in the reactor is controlled at -15°C ~ -5°C. After 8 hours, it is synthesized after successively hydrolyzing, washing with water, and distillation. Solid terpene resin.

Embodiment 3

[0015] The synthesis method of this terpene resin comprises the following steps to synthesize 1 ton of terpene resin: After the catalyst is added to the solvent and mixed evenly, the raw material is slowly added dropwise under low temperature conditions, where the raw material is heavy turpentine oil fractionated under reduced pressure in vacuum The product, and containing 75%-80% of β-phellandrene, the solvent is toluene, after adding 0.052 tons of anhydrous aluminum trichloride and 0.013 tons of anhydrous antimony trichloride to 1.33 tons of toluene , then 1.33 tons of β-phellandrene raw materials with a content of 75%-80% are slowly added dropwise to carry out low-temperature polymerization. The temperature in the reactor is controlled at -15°C to -5°C, and after 6 hours , and then sequentially undergo hydrolysis, washing, and distillation to synthesize solid terpene resin.

[0016] The detection index of the terpene resin produced in this way is as follows:

[0017]

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Abstract

The invention discloses a synthetic method of terpene resin. The synthetic method comprises the following steps of: adding a catalyst to a solvent, after uniform mixing, slowly dropwise adding a raw material at low temperature, carrying out low-temperature polymerization, and synthesizing the solid terpene resin after sequentially hydrolyzing, washing and distilling, wherein the raw material is a product obtained through high vacuum reduced-pressure fractionation of heavy turpentine and contains 60%-80% of beta-phellandrene, the solvent is toluene, the proportion of the solvent to the raw material is 0.6-2: 1, the catalyst is one or a mixture of aluminium trichloride anhydrous and antimony trichloride anhydrous, the proportion of the catalyst to the raw material is 0.04-0.08: 1, the temperature of the interior of a reaction kettle for low-temperature polymerization is minus 15 DEG C to minus 5 DEG C, and the time of low-temperature polymerization is 4-8 hours. Compared with the prior art, the synthetic method can solve the problem that the traditional terpene resin is high in production cost.

Description

technical field [0001] The invention relates to the technical field of chemical resin deep processing, in particular to a synthesis method of terpene resin. Background technique [0002] Terpene resins are some thermoplastic block copolymers with light color, low odor, high hardness, high adhesion, good oxidation resistance and thermal stability, good compatibility and solubility, etc., especially EVA series SIS series, SBS series It is a kind of good thickener with excellent compatibility, weather resistance and thickening effect in hot melts such as series. Currently, terpene resins are resins secreted by trees of the genus Pinus, called turpentine, from which they can be extracted. From the perspective of chemical composition, rosin is mainly a solution formed by dissolving solid resin acids in terpenes. At present, the raw material for terpene resin production is mainly pinene with high purity, and toluene is used as a solvent, and a catalyst is added to carry out low-...

Claims

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Application Information

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IPC IPC(8): C08F32/08C08F2/06C08F4/14C08F4/20
Inventor 陈键泉陈伟强车乾池孔仕才董俊刘建军杨振洲梁利诚苏炳莲李杰鹏李战冯玲廖军刘霞玲
Owner WUZHOU SONGHUA AROMATIC CHEM
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