Alkyd resin composition preparation method, and alkyd resin composition prepared therethrough

A technology of alkyd resin and composition, applied in the field of alkyd resin composition, which can solve the problems of environmental pollution, easy leakage of molecules, waste of resources and energy, etc., and achieve the effect of reducing cost, reducing dosage, and benefiting environmental protection

Inactive Publication Date: 2019-08-06
BEIJING RISUN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the molecular weight distribution of general alkyd resin is relatively wide, and there are many corresponding small molecular weight units. Therefore, after the paint is sprayed and formed into a film, the small molecular weight molecules are easy to seep out of the paint film surface, causing odor and polluting the environment.
In addition, since the solvent of solvent-based coatings volatilizes into the atmosphere after forming a film, it pollutes the environment and wastes resources and energy.
China's maximum VOC limit for solvent-based coatings is 420g / L, and Europe and the United States are 350g / L, which requires the solid content of the resin to be between 80-90%, that is, the less volatile, the better; and the current solid content of alkyd resin is at About 70%, it is difficult to meet the requirements of high solid content coatings

Method used

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  • Alkyd resin composition preparation method, and alkyd resin composition prepared therethrough
  • Alkyd resin composition preparation method, and alkyd resin composition prepared therethrough
  • Alkyd resin composition preparation method, and alkyd resin composition prepared therethrough

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Prepare a high-solid, low-viscosity, low-VOC alkyd resin composition as follows:

[0048] (1) 30 parts of oleic acid, 30 parts of phthalic anhydride, 20 parts of neopentyl glycol, 10 parts of trimethylolpropane, 0.05 parts of catalyst, 10 parts of glycerol monomethyl ether and 0.05 parts of antioxidant 1098 are put into the reaction in turn in the cauldron.

[0049] (2) Introduce high-purity nitrogen or carbon dioxide protective gas into the stainless steel reaction kettle, vacuumize three times continuously to remove the oxygen in the reaction kettle, then raise the temperature to 150°C, keep the temperature for 1h, then rise to 160°C, keep the temperature for 1h, Then rise to 170°C, hold the temperature for 1 hour, then rise to 180°C, hold the temperature for 1 hour, then rise to 190°C, hold the temperature for 1 hour, then rise to 200°C, hold the temperature for 1 hour, and finally rise to 210°C.

[0050] (3) The reaction system carries out the esterification reacti...

Embodiment 2

[0053] Prepare a high-solid, low-viscosity, low-VOC alkyd resin composition as follows:

[0054](1) 30 parts of oleic acid, 30 parts of phthalic anhydride, 20 parts of neopentyl glycol, 10 parts of trimethylolpropane, 0.05 parts of catalyst, 20 parts of glycerol monomethyl ether and 0.05 parts of antioxidant 1098 are put into the reaction in turn in the cauldron.

[0055] (2) Introduce high-purity nitrogen or carbon dioxide protective gas into the stainless steel reaction kettle, vacuumize three times continuously to remove the oxygen in the reaction kettle, then raise the temperature to 150°C, keep the temperature for 1h, then rise to 160°C, keep the temperature for 1h, Then rise to 170°C, hold the temperature for 1 hour, then rise to 180°C, hold the temperature for 1 hour, then rise to 190°C, hold the temperature for 1 hour, then rise to 200°C, hold the temperature for 1 hour, and finally rise to 210°C.

[0056] (3) The reaction system carries out the esterification reactio...

Embodiment 3

[0059] Prepare a high-solid, low-viscosity, low-VOC alkyd resin composition as follows:

[0060] (1) 30 parts of oleic acid, 30 parts of phthalic anhydride, 20 parts of neopentyl glycol, 10 parts of trimethylolpropane, 0.05 parts of catalyst, 20 parts of glycerol monomethyl ether and 0.05 parts of antioxidant 1098 are put into the reaction in turn in the cauldron.

[0061] (2) Introduce high-purity nitrogen or carbon dioxide protective gas into the stainless steel reaction kettle, vacuumize three times continuously to remove the oxygen in the reaction kettle, then raise the temperature to 150°C, keep the temperature for 1h, then rise to 160°C, keep the temperature for 1h, Then rise to 170°C, hold the temperature for 1 hour, then rise to 180°C, hold the temperature for 1 hour, then rise to 190°C, hold the temperature for 1 hour, then rise to 200°C, hold the temperature for 1 hour, and finally rise to 210°C.

[0062] (3) The reaction system carries out the esterification reacti...

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PUM

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Abstract

The invention relates to an alkyd resin composition preparation method, and an alkyd resin composition prepared therethrough. The preparation method reduces the use amount of an organic solvent according to the high solid characteristic of the alkyd resin composition, so energy is saved, emission is reduced, the cost is reduced, the purposes of low VOC and odor removal are achieved, the alkyd resin composition belongs to an environmentally-friendly alkyd resin, and environmental protection is facilitated. The alkyd resin composition also has low viscosity, can be air-dried at normal temperature, and can be quickly dried after being processed into a paint.

Description

technical field [0001] The invention relates to a preparation method of an alkyd resin composition and an alkyd resin composition prepared therefrom, in particular to a preparation method of a high-solid, low-viscosity, environment-friendly and low-VOC alkyd resin composition and an alkyd resin composition prepared therefrom Alkyd resin composition. Background technique [0002] Alkyd resin has good weather resistance, rust resistance, easy construction and low price. Therefore, alkyd resin has always occupied a relatively large proportion in the coating industry, for example, it can be used as coatings and paints in the fields of metal protection, furniture, vehicles and construction. However, the molecular weight distribution of general alkyd resins is relatively wide, and there are many corresponding small molecular weight units. Therefore, after the paint is sprayed and formed into a film, the small molecular weight molecules are easy to seep out of the paint film surfa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/49C08G63/81
CPCC08G63/48C08G63/81
Inventor 王国利高兴东于洪锋徐海军李婷陈西波张新平党伟荣
Owner BEIJING RISUN TECH CO LTD
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