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Preparation method of rosin modified phenolic printing ink resin

A rosin-modified phenolic and ink resin technology, which is applied to inks, household utensils, applications, etc., can solve the problems of high energy consumption, slow esterification reaction between polyols and rosin, and long reaction time, and achieve high catalytic efficiency and softening High point, good oil solubility

Active Publication Date: 2013-03-20
SHANGHAI HUAYI GRP CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a preparation method of rosin-modified phenolic ink resin to solve the problems in the prior art that the esterification reaction between polyol and rosin is slow, the reaction time is long, and the energy consumption is large.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Weigh 100g of rosin and dissolve the rosin at 105°C. After the rosin is melted, add 0.28g of magnesium oxide, 0.14g of calcium oxide, 8g of tung oil and 15g of p-tert-butylphenol respectively from the feed port. Stir for 30 minutes after completion. Add 7.5g of formaldehyde dropwise, the speed should be slow, about 1h to complete, ensure that the temperature of the kettle is not lower than 95°C, otherwise the dropping speed should be further slowed down. After the dropwise addition of formaldehyde, keep warm for 2 hours, and control the temperature in the kettle at 100-110°C. When keeping warm, turn on the condensed water directly, and the temperature fluctuation should be as small as possible. After the heat preservation is over, turn off the condensed water and stop the reflux, and continue the heat preservation for 3 hours. Then, the condensed water was vented, the temperature was raised to 220°C, and 12.4 g of pentaerythritol and 0.028 g of tetrabutyl titanate wer...

Embodiment 2

[0022] Weigh 100g of rosin and dissolve the rosin at 100°C. After the rosin is melted, add 0.3g of magnesium oxide, 0.2g of calcium oxide, 7.1g of tung oil and 25g of p-tert-butylphenol respectively from the feed port. Add p-tert-butylphenol slowly, and control the temperature fluctuation at about 5°C. Stir for 30 minutes after addition. Add 12.5 g of formaldehyde dropwise, the speed should be slow, and it should be completed in about 1 hour. Ensure that the temperature of the kettle is not lower than 95°C, otherwise the dropping speed should be further slowed down. After the dropwise addition of formaldehyde, keep warm for 2 hours, and control the temperature in the kettle at 100-110°C. When keeping warm, turn on the condensed water directly, and the temperature fluctuation should be as small as possible. After the heat preservation is over, turn off the condensed water and stop the reflux, and continue the heat preservation for 2 hours. Then the condensed water was vented,...

Embodiment 3

[0024] Weigh 100g of rosin and dissolve the rosin at 110°C. After the rosin is melted, add 0.17g of magnesium oxide, 0.14g of calcium oxide, 15g of tung oil and 20g of p-tert-butylphenol respectively from the feed port. Stir for 30min. Add 10g of formaldehyde dropwise, the speed should be slow, about 1h to complete, ensure that the temperature of the kettle is not lower than 95°C, otherwise the dropping speed should be further slowed down. After the dropwise addition of formaldehyde, keep warm for 2 hours, and control the temperature in the kettle at 100-110°C. When keeping warm, turn on the condensed water directly, and the temperature fluctuation should be as small as possible. After the heat preservation is over, turn off the condensed water and stop the reflux, and continue the heat preservation for 2.5 hours. Then, the condensed water was vented, the temperature was raised to 225°C, and 12.2 g of glycerin and 0.12 g of tetraethyl titanate were added. After the addition...

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PUM

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Abstract

The invention discloses a preparation method of rosin modified phenolic printing ink resin, which uses a one-step synthetic process. The method comprises the following steps that reactants such as rosin, phenols and formaldehyde react to generate phenolic resin, and then the phenolic resin is reacted with polyhydric alcohols under the condition of high temperature so as to obtain the rosin modified phenolic printing ink resin. By the method, the problems of slow reaction and long reaction time of the rosin and the polyhydric alcohols in the prior art are solved. Through the addition of an esterification reaction catalyst, the esterification reaction time is shortened, the production efficiency is increased, the energy consumption and the cost are reduced, and the economic benefit is increased.

Description

technical field [0001] The present invention relates to a kind of preparation method of rosin modified phenolic ink resin, more specifically, the present invention relates to a kind of new rosin modified phenolic resin used in industries such as paint, printing ink, electric cable, printing, rubber, plastics and adhesive Preparation. Background technique [0002] With the accelerated pace of modern society, high-speed printing has become a trend. In order to meet the needs of high-speed printing and assembly line operations, inks with good printing performance and instant drying are required. Rosin-modified phenolic ink resin has the advantages of strong adhesion and fast drying speed, and has been widely used in thermosetting inks. [0003] Rosin modified phenolic ink resin is based on rosin, alkylphenol, formaldehyde and polyol as the main raw materials to produce a kind of oil-soluble resin with cross-linked network structure, high softening point and low acid value. P...

Claims

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Application Information

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IPC IPC(8): C08G8/34C09D11/10C09D11/103
Inventor 李小林吴梓新林欧亚
Owner SHANGHAI HUAYI GRP CO
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