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Synthetic method of super tackifying resin

A synthesis method and tackifying resin technology, which is applied in the field of chemical raw material synthesis, can solve the problems of increasing application cost and high price, and achieve the effects of reducing production cost and use cost, improving adhesion, and good economic and social benefits

Inactive Publication Date: 2015-03-25
于文明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its price is relatively high, as high as 35,000 to 45,000 yuan per ton, which greatly increases the application cost of domestic tire and rubber industries, and there is currently no mature and low-cost large-scale raw material production technology in China, which will greatly increase the domestic tire and rubber production technology. The development of the industry has brought many restrictions, so we urgently need to develop new super tackifying resins, especially super tackifying resins with low production cost, good performance and mature technology, to meet the needs of the rapidly developing tire and rubber industries

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] (1) Mix tert-butylphenol, 37% formaldehyde aqueous solution, and morpholine according to the weight ratio of tert-butylphenol:formaldehyde aqueous solution:morpholine:NaOH at 50:30:17:0.5, heat up to 90°C for reflux reaction 3 Hour.

[0015] (2) After the reflux reaction, add 5% hydrochloric acid solution to neutralize, wash twice with the same volume of water, separate the waste water, then heat up and distill, and remove all the water under the condition that the temperature is lower than 130°C and the vacuum degree is lower than 0.04mpa. .

[0016] (3) After the water is completely removed, add rosin. The ratio of the amount of rosin added to the weight of tert-butylphenol in the raw material is rosin: tert-butylphenol at a ratio of 1:1. Remove water and small molecular substances under a vacuum of 0.05~0.06mpa. When the measured softening point is 120°C, discharge the material, and the product is a special-grade tackifying resin, which is reddish brown and transpar...

Embodiment 2

[0018] (1) Mix tert-butylphenol, 37% formaldehyde aqueous solution, and morpholine in proportions by weight of tert-butylphenol: formaldehyde aqueous solution: morpholine: NaOH at 65: 72: 40: 5, heat up to 110°C for reflux reaction 4 Hour;

[0019] (2) After the reflux reaction, add 5% hydrochloric acid solution to neutralize, wash twice with the same volume of water, separate the waste water, then heat up and distill, and remove all the water under the condition that the temperature is lower than 130°C and the vacuum degree is lower than 0.04mpa. ;

[0020] (3) After the water is completely removed, add rosin. The ratio of the amount of rosin added to the weight of tert-butylphenol in the raw material is rosin: tert-butylphenol is 1:2, and the temperature is raised to 260 ° C for 1 hour, and at 270 ° C Remove water and small molecular substances under the condition of vacuum of 0.05~0.06mpa. When the measured softening point is 150°C, discharge the material. The product is a...

Embodiment 3

[0022] (1) Mix tert-butylphenol, 37% formaldehyde aqueous solution, and morpholine according to the weight ratio of tert-butylphenol:formaldehyde aqueous solution:morpholine:NaOH at 120:70:35:1.5, heat up to 105°C and reflux reaction 4 Hour;

[0023] (2) After the reflux reaction, add 5% hydrochloric acid solution to neutralize, wash twice with the same volume of water, separate the waste water, then heat up and distill, and remove all the water under the condition that the temperature is lower than 130°C and the vacuum degree is lower than 0.04mpa. ;

[0024] (3) After the water is completely removed, add rosin. The ratio of the amount of rosin added to the weight of tert-butylphenol in the raw material is rosin: tert-butylphenol is 1:1, and the temperature is raised to 260 ° C for 1 hour, and at 265 ° C Remove water and small molecular substances under a vacuum of 0.05mpa. When the measured softening point is 135°C, discharge the material. The product is a special-grade tac...

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Abstract

The invention relates to a synthetic method of super tackifying resin. The synthetic method comprises using tert-butyl phenol, aqueous formaldehyde solution, morpholine and NaOH as raw materials, adjusting weight part proportion among the components, adding rosin in a mid-term for alkalization reaction, and performing a system adjusting for process reaction parameters and other factors, thereby obtaining the super tackifying resin. The method reduces production and using cost, improves adhesive force the tackifier resin and has relatively good economic and social benefits.

Description

technical field [0001] The invention relates to the technical field of chemical raw material synthesis, in particular to a method for synthesizing super-grade tackifying resin. Background technique [0002] At present, most of the tackifying resins widely used in the tire and rubber industries are imitations of foreign products, such as: p-tert-butylphenol-formaldehyde resin, p-tert-octylphenol-formaldehyde resin, modified alkylphenol-formaldehyde resin and so on. Imported alkylphenol-acetylene resins newly listed in recent years {that is, Koresin, BASF (Germany), struk-chem US, PA-59-998, PA-59-999, Polymer Application US products} are called super-increasing Adhesive resin, the performance is obviously better than p-tert-butyl and p-tert-octyl phenolic resin. However, its price is relatively high, as high as 35,000 to 45,000 yuan per ton, which greatly increases the application cost of domestic tires and rubber industries, and there is currently no mature and low-cost lar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G8/34C08G8/12
Inventor 于文明
Owner 于文明