Preparation method of rosin resin capable of being dissolved by low-concentration ammonia water

A rosin resin and low-concentration technology, which is applied in the field of rosin resin preparation, can solve problems such as increasing difficulty coefficient and cost, increasing production cost, waste, etc., and achieves the problem of over-dark resin color, reduced impact and damage, and reduced production cost Effect

Inactive Publication Date: 2013-02-06
FINJET CHEM IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The volatilization of a large amount of organic solvents not only increases the production cost, but also causes great waste. What is more serious is that the volatilization of a large amount of toxic organic solvents such as toluene can easily lead to a bad working environment, damage the health of workers, and cause air p

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0021] Example 1:

[0022] (1) Prepare 900 grams of first-grade horsetail rosin, 200 grams of 99% industrial grade fumaric acid, 45 grams of 99% glycerol, 15 grams of 1,2-propanediol, 5 grams of ethylene glycol, 1 gram of rosin antioxidant, ester Chemical catalyst 1 g;

[0023] (2) Crush 900 grams of the first-grade masson pine rosin prepared in (1) and put it into a five-necked flask. The five-necked flask is equipped with a stirrer, a spherical condenser and a sleeve thermometer. It is heated with an electric heating mantle and the temperature is raised to 170-180. ℃ melting raw materials;

[0024] (3) After melting the raw materials in CO 2 Under protection, slowly start the agitator, add 1 g of rosin antioxidant prepared in (1), adjust the temperature of the material in the reaction vessel to 175-185°C, add 200 g of 99% industrial fumaric acid prepared in (1), Stabilize the temperature of the material for 2-3 hours of reaction at 175-185°C until the softening point is greater t...

Example Embodiment

[0027] Example 2:

[0028] (1) Prepare 1000 grams of first-grade masson pine rosin, 200 grams of 99% industrial grade fumaric acid, 50 grams of 99% glycerol, 20 grams of 1,2-propanediol, 5 grams of ethylene glycol, and 1 gram of rosin antioxidant. Esterification catalyst 1 g;

[0029] (2) Crush 1000 grams of the first-grade masson pine rosin prepared in (1) and put it into a five-necked flask. The five-necked flask is equipped with a stirrer, a spherical condenser and a sleeve thermometer. It is heated with an electric heating mantle and heated to 170-180. ℃ melting rosin raw materials;

[0030] (3) After melting the rosin raw materials in CO 2 Under protection, slowly start the agitator, add 1 g of rosin antioxidant prepared in (1), adjust the temperature of the material in the reaction vessel to 175-185°C, add 200 g of 99% industrial fumaric acid prepared in (1), Stabilize the temperature of the material at 175-185°C for 2-3 hours to react until the softening point is greater tha...

Example Embodiment

[0033] Example 3:

[0034] (1) Prepare 5000 kg of first-grade masson pine rosin, 1200 kg of 99% industrial grade fumaric acid, 260 kg of 99% glycerol, 100 kg of 1,2-propanediol, 60 kg of ethylene glycol, and 10 kg of rosin antioxidant. Esterification catalyst 10 kg;

[0035] (2) Put 5000 kg of the first-grade masson pine rosin crushed in (1) into the reaction kettle, and heat to 170-180°C to melt the rosin raw material;

[0036] (3) After melting the rosin raw materials, under the protection of nitrogen, slowly start the stirrer, add 10 kg of the rosin antioxidant prepared in (1), adjust the temperature of the materials in the reactor to 175-185°C, and add the prepared 99% industrial-grade rich 1,200 kg of maleic acid, the stable material temperature is 175-185°C for 2-3 hours of addition reaction, until the softening point is ≥135°C, to obtain fumaric acid modified rosin;

[0037] (4) The fumaric acid-modified rosin of (3) is heated to 195-200℃, and then 260 kg of 99% glycerol and 1...

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Abstract

The invention discloses a preparation method of rosin resin capable of being dissolved by low-concentration ammonia water, comprising the following steps of: carrying out addition reaction on rosin and fumaric acid under the protection of a rosin antioxidant to obtain fumaric acid modified rosin; adding 99% glycerol and an esterification catalyst, and esterifying by means of heat preservation; adding 1, 2-propylene glycol and ethylene glycol to participate in esterification reaction; and distilling under the conditions of high temperature and vacuum, and discharging and filling when the material is hot to obtain the rosin resin capable of being dissolved by low-concentration ammonia water. When the rosin resin is prepared, the use level of the rosin and fumaric acid can be accurately quantified, and the conation of the technological preparation can be optimized, so that alcohols can be put under the temperature of 195-200DEG C for reacting, the material can be accurately quantified, the putting mode and the putting sequence can be adjusted, the problem of the over-deep color of the resin can be effectively solved, the ammonia water dissolving stability of products can be guaranteed, and the materials can be dissolved with one another by 5-15% low-concentration ammonia water solution, and therefore, not only the adhesive force of products can be guaranteed, but also the influence to the environment when the rosin resin is used can be reduced.

Description

1. Technical field [0001] The invention relates to a preparation method of rosin resin which can be dissolved in low-concentration ammonia water, in particular to a preparation method of rosin resin dissolved in low-concentration ammonia water for tanning. 2. Background technology [0002] At present, commonly used solvent-based solid resins need 50%-60% toxic organic solvents such as toluene to be completely dissolved. When products using solvent-based solid resins are dried, their drying form is volatile drying. The volatilization of a large amount of organic solvents not only increases the production cost, but also causes great waste. What is more serious is that the volatilization of a large amount of toxic organic solvents such as toluene can easily lead to poor working conditions, damage the health of workers, and cause air pollution. The commonly used water-soluble resin emulsion is a liquid whose water content accounts for more than 50%, which greatly increases the d...

Claims

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Application Information

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IPC IPC(8): C09F1/04C09F1/02
Inventor 周卓瑜叶旗
Owner FINJET CHEM IND LTD
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