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Preparation of rosen modified mixed alkyl phenolic resin

A technology for modifying alkylphenolic resin and rosin, which is applied in the field of preparation of rosin-modified mixed alkylphenolic resin, can solve the problems of short fixation time, unsatisfactory printing performance, etc., and achieve easy control of acid value and short drying time Moderate effect with excellent printing performance

Inactive Publication Date: 2004-07-21
山西省应用化学研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The rosin-modified alkylphenol-formaldehyde resin is prepared by using alkylphenol with a relatively small alkyl group. This resin has poor oil solubility and aliphatic hydrocarbon solubility. The ink made from it has high gloss, but it is easy to skin. Yellowing, too short fixation time, poor printing performance
The rosin-modified alkylphenol-formaldehyde resin is made of alkylphenol with relatively large alkyl group. The resin has good oil solubility and aliphatic hydrocarbon solubility. The ink and printing performance made of it are good but the gloss is low and the fixing time is too long. long
In short, rosin-modified phenolic resin synthesized from a single alkylphenol is used in the ink binder, which affects the printing effect and speed of the ink, and cannot meet the requirements of the growing printing industry.

Method used

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  • Preparation of rosen modified mixed alkyl phenolic resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Add 34g of p-tert-butylphenol, 100g of p-tert-octylphenol, and 60g of 15% caustic soda into a 500ml three-necked flask, heat and melt, start stirring after melting, cool to 60°C, slowly add 141g of 37% formaldehyde dropwise, add After completion, keep the reaction at 65°C for 4 hours, cool down to 50°C, neutralize with 10% hydrochloric acid until PH = 6, stop stirring and let stand for 20 minutes, separate layers, wash the organic layer twice, discard The aqueous layer obtained 216g of a mixed alkylphenol-formaldehyde resin liquid.

[0024] Add 400g of rosin into a 1000ml three-neck flask, heat and melt, start stirring after melting, and slowly add 216g of a stage A mixed alkylphenolic resin solution under the condition of 180-182°C. Add 0.2g of zinc oxide, stir evenly, slowly add 60g of glycerin at 220°C, keep warm at this temperature for two hours, raise the temperature to 265°C and keep warm until the acid value of the reaction solution is less than 20mgKOH / g, then r...

Embodiment 2

[0026] Add 68g of p-tert-butylphenol, 65g of p-nonylphenol, and 53g of 15% caustic soda into a 500ml three-necked flask, heat and melt, start stirring after melting, cool to 50°C, slowly add 140g of 37% formaldehyde dropwise, add After completion, keep the reaction at 60°C for 3 hours, cool down to 50°C, neutralize with 10% hydrochloric acid until PH = 5, stop stirring and let stand for 20 minutes, separate layers, wash the organic layer twice, discard The aqueous layer obtained 223g of a mixed alkylphenol-formaldehyde resin liquid.

[0027] Add 400g of rosin into a 1000ml three-necked flask, heat and melt, start stirring after melting, slowly add 223g of a mixed alkyl phenolic resin solution at 190°C, and keep it warm at 230°C for one hour after adding, add 0.2 g magnesium oxide, stir evenly, slowly add 54g of tetracycline at 240°C, keep the reaction at this temperature for two hours, heat up to 270°C and keep the reaction until the acid value of the reaction solution is less...

Embodiment 3

[0029] Add 15g of p-methylphenol, 56g of p-tert-butylphenol, 44g of p-tert-octylphenol, 60g of 15% caustic soda into a 500ml three-necked flask, heat and melt, start stirring after melting, cool to 55°C and slowly drop Add 128g of 37% formaldehyde, after the addition, keep it warm at 70°C for 5 hours, cool down to 50°C, neutralize with 10% hydrochloric acid, neutralize until PH=6, stop stirring and let stand for 20 minutes, separate layers 1. The organic layer was washed twice with water, and the aqueous layer was discarded to obtain 191g of a mixed alkylphenol-formaldehyde resin solution.

[0030] Add 400g of rosin to a 1000ml three-necked flask, heat and melt, start stirring after melting, and slowly add 191g of a stage A mixed alkylphenolic resin solution at 200°C. 0.3g of magnesium oxide, stir well, slowly add 57g of glycerin at 210°C, keep warm at this temperature for two hours, heat up to 268°C, keep warm and react until the acid value of the reaction solution is less th...

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Abstract

The present invention belongs to the field of resin preparation technology that is a kind of connecting material to printing ink. It is obtained with processed by the following steps: arbitrarily mixing p-methyl hydroxybenzene, p-tert-butylphenol, p-tex-octylphenol and p-nonylphenol, making them produce reaction with formaldehyde to synthesize A-stage mixed alkyl phenolic resin, then using rosin to make modification and using polyhydric alcohol to make esterification. Said invention is easy to operate, safe, and its resin oil-solubility and fatty hydrocarbon solubility are good. Its colour is light and softening point is high. The printing ink made up by using said invented product does not skin, and possesses good printing property.

Description

technical field [0001] The invention introduces a manufacturing technology of resin used for preparing ink binder, and more specifically relates to a manufacturing technology of rosin-modified mixed alkylphenol-formaldehyde resin. Background technique [0002] Rosin modified phenol novolac resin, rosin modified bisphenol A phenol novolac resin, rosin modified tert-butylphenol novolac resin, etc. have been prepared for many years. Performance, drying, fixing performance and other printing properties all have different defects. The rosin-modified alkylphenol-formaldehyde resin is prepared by using alkylphenol with a relatively small alkyl group. This resin has poor oil solubility and aliphatic hydrocarbon solubility. The ink made from it has high gloss, but it is easy to skin. Yellowing, too short fixation time, poor printing performance. The rosin-modified alkylphenol-formaldehyde resin is made of alkylphenol with relatively large alkyl groups. The resin has good oil solubi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G8/34
Inventor 马国章白国宝侯彩英原丽平任晓东
Owner 山西省应用化学研究所
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