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Synthetic method for thermal oxidation resistant tackifying resin

A synthesis method and tackifying resin technology, applied in the field of chemical raw material synthesis, to achieve good economic benefits and market prospects, and to broaden the application field

Inactive Publication Date: 2013-05-15
于文明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Tackifying resins widely used in the market, such as petroleum resin, p-tert-butyl (octyl) phenolic resin, terpene resin, styrene indene resin, coomalon resin, rosin modified phenolic resin, etc., have a variety of grades and varieties, but there are no resins and modified products synthesized with anti-aging agent SP (styrenated phenol) as raw materials. The present invention synthesizes a new Tackifying resin with anti-oxidation properties, this kind of resin will improve the thermal oxidation resistance of rubber compounds or be used in other products, such as plastics, paints, adhesives industries, will play a role in tackifying at the same time , have a certain anti-thermal and oxidative aging function

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] (1) Mix styrenated phenol, 37% formaldehyde solution, and NaOH in proportions by weight of styrenated phenol:formaldehyde solution:NaOH at 45:20:0.5, heat up to 90°C and reflux for 3 hours;

[0013] (2) After the reflux reaction, add hydrochloric acid solution for neutralization, add water 1 times the volume of the mixed solution, stir for 5 minutes, let stand for stratification, separate the water, then add water 2 times the volume of the mixed solution and stir for 5 minutes Minutes, stand for stratification, after the water is removed, heat up, control the temperature in the kettle to be less than 140°C and distill to remove the water;

[0014] (3) After the water is completely removed, add phthalic anhydride, and when the temperature rises to 300°C, add glycerin, carry out distillation and dehydration after etherification reaction for 30 minutes, and at the same time, evaporate and volatilize under the condition of negative pressure 0.05~0.08mpa and kettle temperatur...

Embodiment 2

[0017] (1) Mix styrenated phenol, 37% formaldehyde solution, and NaOH in proportions by weight of styrenated phenol:formaldehyde solution:NaOH at 60:50:5, heat up to 110°C and reflux for 4 hours;

[0018] (2) After the reflux reaction, add hydrochloric acid solution for neutralization, add water 1 times the volume of the mixed solution, stir for 5 minutes, let stand for stratification, separate the water, then add water 2 times the volume of the mixed solution and stir for 5 minutes Minutes, stand for stratification, after the water is removed, heat up, control the temperature in the kettle to be less than 140°C and distill to remove the water;

[0019] (3) After the water is completely removed, add phthalic anhydride, and when the temperature rises to 300°C, add glycerin, carry out distillation and dehydration after etherification reaction for 30 minutes, and at the same time, evaporate and volatilize under the condition of negative pressure 0.05~0.08mpa and kettle temperature...

Embodiment 3

[0022] (1) Mix styrenated phenol, 37% formaldehyde solution, and NaOH in proportions by weight of styrenated phenol:formaldehyde solution:NaOH at 50:15:1, heat up to 100°C and reflux for 3.5 hours;

[0023] (2) After the reflux reaction, add hydrochloric acid solution for neutralization, add water 1 times the volume of the mixed solution, stir for 5 minutes, let stand for stratification, separate the water, then add water 2 times the volume of the mixed solution and stir for 5 minutes Minutes, stand for stratification, after the water is removed, heat up, control the temperature in the kettle to be less than 140°C and distill to remove the water;

[0024] (3) After the water is completely removed, add phthalic anhydride, and when the temperature rises to 300°C, add glycerin, carry out distillation and dehydration after etherification reaction for 30 minutes, and at the same time, evaporate and volatilize under the condition of negative pressure 0.05~0.08mpa and kettle temperatu...

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Abstract

The invention relates to a synthetic method for thermal oxidation resistant tackifying resin. The synthetic method comprises the following steps of: carrying out polycondensation on the tackifying resin by utilizing styrenated phenol and formaldehyde; modifying the trackifying resin by utilizing phthalic anhydride and glycerol; and systemically adjusting the parameters in the synthesis steps to obtain the novel tackifying resin. Compared with the petroleum resin, p-tert-butylphenol formaldehyde resin, terpene resin, styreneindene resin, coumarone-indene resin and rosin modified phenolic resin, the tackifying resin is more thermal oxidation resistant while achieving the tackifying action, so that the application field of the thermal oxidation resistant tackifying resin is expanded, and good economic benefits and market prospects are better.

Description

technical field [0001] The invention relates to the technical field of synthesis of chemical raw materials, in particular to a synthesis method of a heat-oxidation-resistant tackifying resin. Background technique [0002] Tackifying resins widely used in the market, such as petroleum resin, p-tert-butyl (octyl) phenolic resin, terpene resin, styrene indene resin, coomalon resin, rosin modified phenolic resin, etc., have a variety of grades and varieties, but there are no resins and modified products synthesized with anti-aging agent SP (styrenated phenol) as raw materials. The present invention synthesizes a new Tackifying resin with anti-oxidation properties, this kind of resin will improve the thermal oxidation resistance of rubber compounds or be used in other products, such as plastics, paints, adhesives industries, will play a role in tackifying at the same time , Play a certain anti-thermal oxygen aging function. Contents of the invention [0003] The object of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G8/36C08G8/08
Inventor 于冰于文明王明彦
Owner 于文明
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