Mixed fatty acid modified smell eliminating matt alkyd resin and preparation method thereof

A technology of mixing fatty acids and alkyd resins, which is applied in the field of coatings, can solve the problems of solvent gradient volatility, fullness, leveling performance, hardness, scratch resistance, transparency and matting performance, etc., to achieve excellent cleanness. Odor and solvent gradient volatility, good matting effect, high fullness effect

Inactive Publication Date: 2015-05-13
上海展辰涂料有限公司 +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, conventional low-odor matte topcoat resins are not ideal for deodorizing effect and solvent gradient volatility, fullness, leveling performance, hardness, scratch resistance, transparency, and matting performance. There are still some defects in the topcoat resin

Method used

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  • Mixed fatty acid modified smell eliminating matt alkyd resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Add 200 g of oleic acid, 30 g of isooctanoic acid, 30 g of isononanoic acid, 40 g of isophthalic acid, 180 g of pentaerythritol, and 60 g of glycerol in a 2000 mL four-neck flask equipped with a stirring device, a thermometer, and nitrogen protection. , 50 neopentyl glycol, 220 g phthalic anhydride, 30 g xylene, 1 g hypophosphorous acid, start heating and stir to raise the temperature to 150 ° C for 60 min;

[0024] Raise the temperature to 180°C for 2 hours, then raise the temperature to 210-215°C at 10°C / h and keep the heat until the acid value is less than 12mg KOH / g and the viscosity is greater than 25000 mPa·s (25°C), then cool down;

[0025] When the temperature of the resin is lowered to about 150-160°C, dilute with 360 g of xylene solvent, stir and filter the material to obtain the product.

Embodiment 2

[0027] In a 2000 mL four-necked flask equipped with a stirring device, a thermometer and nitrogen protection, sequentially add 190 g of oleic acid, 50 g of isooctanoic acid, 20 g of isononanoic acid, 80 g of isophthalic acid, 180 g of pentaerythritol, and 30 g of glycerin Alcohol, 60 neopentyl glycol, 200g phthalic anhydride, 1.2g hypophosphorous acid, 30 g xylene, heating and stirring to raise the temperature to 150°C and keep it for 60min; Keep warm at -220°C until the acid value is less than 12mg KOH / g, and the viscosity is greater than 25000 mPa·s (25°C), then cool down;

[0028] When the temperature of the resin is lowered to about 150-160°C, dilute with 340 g of xylene with a solvent, filter and discharge to obtain the product.

Embodiment 3

[0030] In a 2000 mL four-neck flask equipped with a stirring device, a thermometer and nitrogen protection, sequentially add 160 g of oleic acid, 50 g of isooctanoic acid, 50 g of isononanoic acid, 80 g of isophthalic acid, 220 g of pentaerythritol, and 30 g of glycerin Alcohol, 30 neopentyl glycol alcohol, 200 g phthalic anhydride, 30 g xylene, 1.5 g hypophosphorous acid, heated and stirred, and heated to 150 ° C for 60 min;

[0031] Raise the temperature to 180°C for 2 hours, then raise the temperature to 210-215°C at 10°C / h and keep the heat until the acid value is less than 12mg.KOH / g, and the viscosity is greater than 25000 mPa·s (25°C), then cool down;

[0032] When the temperature of the resin is lowered to about 150-160°C, dilute with 350 g of xylene with a solvent, filter and discharge to obtain the product.

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PUM

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Abstract

The invention discloses a mixed fatty acid modified smell eliminating matt alkyd resin and a preparation method thereof. The mixed fatty acid modified smell eliminating matt alkyd resin comprises 6-10wt% of isocaprylic acid, 3-5wt% of isononanoic acid, 9-15wt% of oleic acid, 20-30wt% of polybasic acid anhydride, 18-25wt% of polyol, 25-33wt% of a solvent and 0.01-0.5wt% of an assistant. Low smell oleic acid with the oleic acid content of 50% or more is reasonably matched with isocaprylic acid or isononanoic acid in the above formula. Polyester produced in the invention has a high vitrification point, very good hardness, certain flexibility, good levelability and scratch resistance; and the dryness becomes better with the rising of the vitrification point, and a matt coating prepared by using the polyester as a base material can be coated multiple times to form a coat with extremely good transparency, good delustring effect and extremely good solvent release property, can be used as high grade smell eliminating matt alkyd resin with excellent performances, and can be widely used in the production of high grade furniture.

Description

technical field [0001] The invention belongs to the technical field of coatings, and specifically relates to a clean-taste matte alkyd resin modified by mixed fatty acids. Background technique [0002] At present, conventional low-odor matte topcoat resins are not ideal for deodorizing effect and solvent gradient volatility, fullness, leveling performance, hardness, scratch resistance, transparency, and matting performance. There are also certain defects in the topcoat resin. Contents of the invention [0003] The object of the present invention is to provide a kind of net-taste matte alkyd resin modified with mixed fatty acid and its preparation method, so as to overcome the shortcomings and deficiencies existing in the prior art. [0004] The described net taste matte alkyd resin modified with mixed fatty acids comprises the following components in weight percentage: [0005] Isooctanoic acid 6%-10% [0006] Isononanoic acid 3%-5% [0007] Oleic acid 9%-15% [0008]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/49C09D167/08
Inventor 朱强刘志刚汪雄智陈亚友
Owner 上海展辰涂料有限公司
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