Method for producing terpene-phenolic resins

A technology of terpene phenol resin and production method, which is applied in the production field of terpene phenol resin, can solve problems such as unreasonable molecular structure, uneven distribution, and insufficient adhesion of terpene phenol resin, and achieve high peel strength and compatibility Good, thickening effect enhanced effect

Inactive Publication Date: 2013-03-13
XINYI SONGYUAN CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the terpene phenol resin is polymerized by high-grade turpentine or 95% a-pinene and phenol through a catalyst. Insufficient viscosity and poor compatibility

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A, 120kg of industrial phenol and 550kg of solvent toluene are added in the reactor, start to stir, and the rotating speed is 400 rpm, then add 40kg of catalyst boron trichloride, and start to drop the α-pinene with a purity of not less than 98% at the same time, Add 500kg dropwise at a rate of 500kg / h. During this process, the reaction temperature is controlled at 30°C. After 1 hour of reaction, the temperature is controlled at 40°C for 4 hours to obtain a toluene solution containing terpene phenol resin and boron trichloride. ;

[0016] B. Put the above-mentioned toluene solution into a water washing pot for washing, add 90-100°C hot water for washing, wash away the catalyst, and obtain a yellow terpene phenol resin liquid;

[0017] C: Put the terpene phenol resin liquid into the stilling pot for distillation after clarification of the water, first heat to 180°C, and evaporate the solvent toluene; then vacuumize and distill, and heat under the vacuum degree of -0.08Mp...

Embodiment 2

[0021] A, 100kg of industrial phenol and 550kg of solvent toluene are added in the reaction kettle, start to stir, and the rotating speed is 400 rpm, then add 40kg of catalyst boron trichloride, and start to drop α-pinene with a purity of not less than 98% at the same time, Add 520kg dropwise at a rate of 500kg / h. During this process, the reaction temperature is controlled at 30°C. After 1.1 hours of reaction, the temperature is controlled at 45°C for 4 hours to obtain a toluene solution containing terpene phenol resin and boron trichloride. ;

[0022] B. Put the above-mentioned toluene solution into a water washing pot for washing, add 90-100°C hot water for washing, wash away the catalyst, and obtain a yellow terpene phenol resin liquid;

[0023] C. After the terpene phenol resin liquid is clarified, put it into a distillation pot for distillation, first heat it to 180°C, and evaporate the solvent toluene; then vacuumize it and heat it under the vacuum degree of -0.08Mpa~-0....

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Abstract

The invention provides a method for producing terpene-phenolic resins. The terpene-phenolic resins with high tackifying property are obtained, so that the performance of the terpene-phenolic resins is improved. The method for producing the terpene-phenolic resins comprises the following steps of: A, dipping a-pinene with the purity of not less than 98 percent into a mixed liquid of phenol and methylbenzene under a temperature condition of 30-50 DEG C; adding boron trichloride serving as a catalyst into the mixed liquid to stir at least for one hour; and standing for 3-4 hours under a temperature condition of 40-60 DEG C to obtain a primary reactant; B, putting the primary reactant into hot water with the temperature of 90-100 DEG C to wash away boron trichloride to obtain the resin liquid of the terpene-phenolic resins; and C, clearing the water of the resin liquid of the terpene-phenolic resins; and putting the liquid into a distilled pot to distill and heat to 180 DEG C to obtain methylbenzene serving as a solvent; vacuumizing, distilling and heating methylbenzene; heating methylbenzene to 260 DEG C under a vacuum degree ranging from -0.08Mpa to -0.1Mpa; reducing the temperature to 240 DEG C after the vacuum is destroyed to package so as to obtain the solid terpene-phenolic resins.

Description

technical field [0001] The invention belongs to the technical field of forest product chemical industry, and in particular relates to a production method of terpene phenol resin. Background technique [0002] Terpene hydrocarbon and phenolic resin, also known as terpene phenol resin, is a phenol-modified resin, and is an excellent tackifier for acrylic resin, styrene-butadiene rubber, natural rubber and neoprene rubber, etc. Melt adhesives, pressure-sensitive adhesives, coatings, inks, printed circuits, plastic modification, rubber products and other industries. At present, the terpene phenol resin is polymerized by high-grade turpentine or 95% a-pinene and phenol through a catalyst. Insufficient viscosity and poor compatibility. Contents of the invention [0003] The purpose of this invention is to propose a kind of production method of terpene phenol resin, to obtain the terpene phenol resin of high viscosity, improve the performance of terpene phenol resin. [0004]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G61/02
Inventor 叶大利
Owner XINYI SONGYUAN CHEM CO LTD
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