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Alcohol-acid type wrinkled resin and preparing method

An alkyd, wrinkle technology, applied in the direction of coating, can solve the problems of wrinkle paint increasing safety hazards, easy powdering of paint film, easy to form glue, etc., to achieve good protection and decoration, energy saving, good hardness Effect

Inactive Publication Date: 2009-07-29
NANJING CHANGJIANG PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of tung oil requires high-temperature refining, and the process requirements are very strict. If there are no trained workers, it will easily become gelatinous.
At the same time, there are many shortcomings in the wrinkle paint made of tung oil, such as the paint film is very easy to pulverize and yellow.
Furthermore, the use of wrinkle paint needs to be diluted with benzene, which also increases the safety hazard for the use of wrinkle paint.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] 1. Formula: maleic anhydride 50kg, dicyclopentadiene 50kg, linolenic acid 40kg, 95% glycerin 20kg, phthalic anhydride 20kg, adduct 10kg, xylene 5kg, dilute solvent 200#30kg.

[0051] 2. Preparation of raw material adducts:

[0052] (1) The reaction kettle is a reaction kettle equipped with a stirrer, a thermometer, a condensation device, and a temperature control device

[0053] (2) Add maleic anhydride into the reaction kettle, heat and melt, and add dicyclopentadiene dropwise at a temperature of 175-185°C.

[0054] (3) After 1.5 hours of heat preservation reaction, measure the melting point of the adduct, and when the melting point is greater than 60° C., cool down and discharge, and set aside.

[0055] 3. Preparation of alkyd wrinkle resin:

[0056] (1) The reaction kettle is a reaction kettle equipped with a stirrer, a thermometer, a reflux device, and a temperature control device.

[0057] (2) The reaction temperature is controlled between 195 and 205°C.

[005...

Embodiment 2

[0061] 1. Formula: 60kg of maleic anhydride, 40kg of dicyclopentadiene, 40kg of linolenic acid, 25kg of 95% glycerin, 20kg of phthalic anhydride, 10kg of adduct, 3kg of xylene, and 20kg of dilute solvent 200#.

[0062] 2. Preparation of raw material adducts:

[0063] (1) The reaction kettle is a reaction kettle equipped with a stirrer, a thermometer, a condensation device, and a temperature control device

[0064] (2) Add maleic anhydride into the reaction kettle, heat and melt, and add dicyclopentadiene dropwise at a temperature of 190-200°C.

[0065] (3) After the heat preservation reaction for 1 hour, measure the melting point of the adduct, and when the melting point is greater than 60° C., cool down and discharge, and set aside.

[0066] 3. Preparation of alkyd wrinkle resin:

[0067] (1) The reaction kettle is a reaction kettle equipped with a stirrer, a thermometer, a reflux device, and a temperature control device.

[0068](2) The reaction temperature is controlled ...

Embodiment 3

[0072] 1. Formula: maleic anhydride 55kg, dicyclopentadiene 45kg, linolenic acid 35kg, 95% glycerin 18kg, phthalic anhydride 18kg, adduct 6kg, xylene 8kg, dilute solvent 200#10kg.

[0073] 2. Preparation of raw material adducts:

[0074] (1) The reaction kettle is a reaction kettle equipped with a stirrer, a thermometer, a condensation device, and a temperature control device

[0075] (2) Add maleic anhydride to the reaction kettle, heat and melt, and add dicyclopentadiene dropwise at a temperature of 160-170°C.

[0076] (3) After holding the reaction for 2 hours, measure the melting point of the adduct, and when the melting point is greater than 60° C., cool down and discharge, and set aside.

[0077] 3. Preparation of alkyd wrinkle resin:

[0078] (1) The reaction kettle is a reaction kettle equipped with a stirrer, a thermometer, a reflux device, and a temperature control device.

[0079] (2) The reaction temperature is controlled between 170 and 180°C.

[0080] (3) Add...

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PUM

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Abstract

The invention discloses an alkyd type wrinkle resin. The alkyd type wrinkle resin contains linolenic acid, 95% glycerin, phthalic anhydride, adducts, xylene and diluted solvent. The invention also discloses a preparation method of the above alkyd wrinkle resin. The present invention avoids the high-temperature refining process of tung oil commonly existing at present, and avoids many defects caused by the addition of tung oil to the wrinkle paint, makes the synthesis process of the resin for wrinkle paint simple and easy to operate, and saves energy. The wrinkle paint prepared from the synthesized resin in the invention does not need to be diluted with benzene for construction, so that the use of the wrinkle paint is safer and more environmentally friendly, and conforms to the overall trend of the current paint development.

Description

technical field [0001] The invention belongs to the technical field of organic synthesis, and in particular relates to a novel resin and a preparation method thereof. Background technique [0002] As a kind of art paint, wrinkle paint is the same as the commonly used hammer paint and orange paint. It has a wide range of uses. It can be used on metal surfaces such as instruments, meters, hardware, security doors, etc., and has a good protective and decorative effect. According to the prior art, the resins for wrinkle paints mainly include phenolic resins and alkyd resins, and the wrinkle paints prepared by these two types of resins all need to add tung oil. The use of tung oil requires high-temperature refining, and the process requirements are very strict. If there are no trained workers, it will easily become glue. Simultaneously, there are many disadvantages in the wrinkle paint made of tung oil, such as very easy chalking and yellowing of the paint film. Furthermore, in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/48C09D5/28
Inventor 温静卫邱绕生张卫中
Owner NANJING CHANGJIANG PAINT
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