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Method for preparing polyamide resin used for water color ink

A technology of polyamide resin and water-based ink, which is applied in the field of polyamide resin, can solve the problems of complex preparation methods of water-based polyamide resin and the inability to obtain low VOC, and achieve the effects of environmental friendliness, increased added value, and mild reaction conditions

Inactive Publication Date: 2009-12-30
JIANGSU QIANGLIN BIO ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the disadvantages that the preparation method of water-based polyamide resin in the prior art is complicated and cannot obtain low VOC, the present invention provides a preparation method of polyamide resin for water-based ink, which has low raw material price, low VOC, and simple preparation process

Method used

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  • Method for preparing polyamide resin used for water color ink
  • Method for preparing polyamide resin used for water color ink
  • Method for preparing polyamide resin used for water color ink

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (1) Preparation of Hydroxypolyamide

[0040] In a 500ml three-neck flask equipped with a heating mantle, a stirring device, and a thermometer, add 1 mol of carboxy-terminated polyamide with a molecular weight of 2000 to 4000, 1.05 mol of ethylene glycol diglycidyl ether (epoxy 669) and 0.5‰ of epoxy mass Tetraethylammonium chloride was used as a catalyst, and then nitrogen gas was introduced, the temperature was raised to 90°C, and the reaction was stirred at 300 rpm for 1 hour to obtain hydroxyl polyamide.

[0041] (2) Preparation of hydroxypolyamide ester

[0042] In a 500ml three-neck flask equipped with a heating mantle, a stirring device, and a thermometer, use toluene as a solvent, add 1 mol of hydroxypolyamide obtained in step (1), 2 mol of phthalic anhydride polyester polyol and the total mass of hydroxypolyamide and polyester polyol 2% sulfuric acid was used as a catalyst, nitrogen gas was passed, and the mixture was stirred and reacted at 50° C. at a speed of...

Embodiment 2

[0047] (1) Preparation of Hydroxypolyamide

[0048] In a 500ml three-neck flask equipped with a heating mantle, a stirring device, and a thermometer, add 1 mol of adipic acid, a mixture of low molecular weight polyamides with carboxyl groups, and 1.07 mol of bisphenol A diglycidyl ether (E-51, epoxy value 0.51) , ethylene glycol diglycidyl ether (epoxy 669) and dimethylaniline accounting for 1‰ of the mass of epoxy as a catalyst, then nitrogen gas was introduced, the temperature was raised to 100°C, and the reaction was stirred at 300 rpm for 1 hour to obtain hydroxyl polyamide.

[0049] (2) Preparation of hydroxypolyamide ester

[0050] In a 500ml three-neck flask equipped with a heating mantle, a stirring device, and a thermometer, use tetrahydrofuran as a solvent, add 1 mol of hydroxypolyamide obtained in step (1), 2 mol of phthalic anhydride polyester polyol and the total mass of hydroxypolyamide and polyester polyol 1.5% aluminum trichloride was used as a catalyst, nitr...

Embodiment 3

[0054] (1) Preparation of Hydroxypolyamide

[0055] In a 500ml three-necked flask equipped with a heating mantle, a stirring device, and a thermometer, add 1mol of tung oil dimer acid, a mixture of low-molecular-weight-terminated carboxyl polyamides, and 1.1mol of bisphenol A diglycidyl ether (E-44, with an epoxy value of 0.44 ) and triethylamine accounting for 1.5‰ of the mass of epoxy as a catalyst, then nitrogen gas was introduced, the temperature was raised to 120°C, and the reaction was stirred at 300 rpm for 1.5h to obtain hydroxyl polyamide.

[0056] (2) Preparation of hydroxypolyamide ester

[0057] In a 500ml three-neck flask equipped with a heating mantle, a stirring device, and a thermometer, use xylene as a solvent, add 1 mol of hydroxypolyamide obtained in step (1), 2 mol of phthalic anhydride polyester polyol and the total amount of hydroxypolyamide and polyester polyol 1% by mass of boron trifluoride is used as a catalyst, nitrogen gas is passed, and the mixtur...

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Abstract

The invention provides a method for preparing polyamide resin used for water color ink, which comprises the following steps: firstly, obtaining hydroxypolyamide through the ring cleavage addition reaction between 1mol eurelon with 2000-4000 molecular weight and / or dibasic acid and / or estolide containing 5-36 carbon atoms and 1-1.3 mol of epoxy compound in a nitrogen atmosphere at the temperature of 90-140 DEG C and under the catalysis of tertiary amine or quaternary ammonium salt; secondly, obtaining hydroxyl polyesteramide through the ring cleavage addition reaction between the hydroxypolyamide obtained in the first step and polyester polyol in an inert organic solvent at the temperature of 50-80 DEG C and under the catalysis of protonic acid accounting for 1-3 percent of gross mass of the hydroxypolyamide and the polyester polyol, or Lewis acid; thirdly, obtaining daiamid through esterification reaction between the hydroxyl polyesteramide obtained in the second step and estolide in an inert organic solvent at the temperature of 80-130 DEG C and under the catalysis of toluenesulfonic acid or sulphuric acid, and then obtaining the polyamide resin used for water color ink after decompressing and distilling the inert organic solvent, neutralizing with alkaline matters and adding de-ionized water. The invention contains low VOC and has simple preparation technology.

Description

technical field [0001] The invention belongs to the field of polyamide resins, and in particular relates to a preparation method of polyamide resins for water-based inks. Background technique [0002] Polyamide resins are generally polycondensed from dibasic acids and diamines. Because they have strong polar amide bonds and other groups, and hydrogen bonds exist between macromolecules, they have high strength, corrosion resistance, weather resistance, and Solvent and other characteristics, it has been widely used in the fields of ink, hot melt adhesive, synthetic fiber and coating. [0003] Polyamide resins can be divided into solvent-type polyamides and non-solvent-type polyamides according to their solubility. The early solvent-type polyamide resins were linear polycondensates with a molecular weight of 3000-9000 prepared by polymerizing fatty acids and ethylenediamine. They were soluble in Aromatics. The aromatic solution of this resin has a strong odor, pollutes the en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G69/48C09D11/10C09D11/102
Inventor 夏建陵丁海阳李梅黄坤
Owner JIANGSU QIANGLIN BIO ENERGY
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