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Water-based benzoic acid modified alkyd resin for air-dry paint and preparation method of water-based benzoic acid modified alkyd resin

An alkyd resin and benzoic acid technology, applied in latex paints, coatings, polyester coatings, etc., can solve the problems of poor initial water resistance, low hardness, and poor yellowing resistance, and achieve stable resin performance, increase molecular weight, Water resistance improvement effect

Inactive Publication Date: 2017-07-25
HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that water-based alkyd resins in the prior art are generally used to prepare baking varnishes. If they are directly used in self-drying varnishes, they will have poor surface dryness, low hardness, poor yellowing resistance, and initial Poor water resistance and other shortcomings, and then provide a kind of good surface drying effect, good hardness, good yellowing resistance and initial water resistance effect and environmental protection water-based benzoic acid modified alkyd resin and its preparation method that can be used for self-drying paint

Method used

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  • Water-based benzoic acid modified alkyd resin for air-dry paint and preparation method of water-based benzoic acid modified alkyd resin
  • Water-based benzoic acid modified alkyd resin for air-dry paint and preparation method of water-based benzoic acid modified alkyd resin

Examples

Experimental program
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Effect test

Embodiment 1

[0026] In this embodiment, the water-based benzoic acid modified alkyd resin A is prepared from the following raw materials: 20g soy acid, 5g benzoic acid, 20g polyol, 15g isophthalic acid, 0.01g dibutyltin oxide catalyst, 4g trimellitic anhydride, 8g butyl glycol ether and 6g sec-butanol.

[0027] Further, the present invention also provides the preparation method of described water-based benzoic acid modified alkyd resin A, comprising the steps of:

[0028](1) Mix 20g of soy oil, 5g of benzoic acid, 20g of neopentyl glycol, 15g of isophthalic acid and 0.01g of dibutyltin oxide catalyst, heat up to 140°C, stir for 5min, then heat up to 170°C and keep it warm for 1h, then raise the temperature to 180°C and keep it for 1h, then raise the temperature to 190°C and keep it for 1h, then raise the temperature to 200°C and keep it for 1h, then raise the temperature to 210°C and keep it until the acid value reaches the target; wherein, the acid value index is Below 6mgKOH / g;

[0029...

Embodiment 2

[0032] In this example, the water-based benzoic acid modified alkyd resin B is prepared from the following raw materials: 26g tall oleic acid, 8g benzoic acid, 28g trimethylolpropane, 29g phthalic anhydride, 0.02g monobutyltin oxide Catalyst, 8g trimellitic anhydride, 8g ethylene glycol butyl ether and 6g sec-butanol.

[0033] Further, the present invention also provides the preparation method of described water-based benzoic acid modified alkyd resin B, comprising the steps of:

[0034] (1) Mix 26g of tall oil acid, 8g of benzoic acid, 28g of trimethylolpropane, 29g of phthalic anhydride and 0.02g of monobutyltin oxide catalyst, heat up to 140°C, stir for 7min, then heat up to 170°C and keep it warm for 1h, then raise the temperature to 180°C and keep it for 1h, then raise the temperature to 190°C and keep it for 1h, then raise the temperature to 200°C and keep it for 1h, then raise the temperature to 210°C and keep it until the acid value reaches the target; wherein, the aci...

Embodiment 3

[0038] In this embodiment, the water-based benzoic acid modified alkyd resin C is prepared from the following raw materials: 28g linoleic acid, 10g benzoic acid, 28.5g pentaerythritol, 29.2g adipic acid, 0.025gDBTL catalyst, 8.5g trimellitic anhydride, 8.4 g ethylene glycol butyl ether and 6.4 g sec-butanol.

[0039] Further, the present invention also provides the preparation method of described water-based benzoic acid modified alkyd resin C, comprising the steps of:

[0040] (1) Mix 28g of linoleic acid, 10g of benzoic acid, 28.5g of pentaerythritol, 29.2g of adipic acid and 0.025g of DBTL catalyst, heat up to 140°C, stir for 8min, then heat up to 170°C and keep it warm for 1h , then heat up to 180°C for 1 hour, then heat up to 190°C for 1 hour, then heat up to 200°C for 1 hour, then heat up to 210°C until the acid value reaches the target; wherein, the acid value index is below 6mgKOH / g;

[0041] (2) When the acid value reaches the target, the temperature is lowered to 17...

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Abstract

The invention provides water-based benzoic acid modified alkyd resin for an air-dry paint and a preparation method of the water-based benzoic acid modified alkyd resin and belongs to the technical field of paints. The water-based benzoic acid modified alkyd resin is prepared from the following raw materials of oleic acid, benzoic acid, polyhydric alcohol, polybasic acid, a catalyst, trimellitic anhydride, ethylene glycol butyl ether and sec-butyl alcohol at the mass ratio of (20-35):(5-20):(20-30):(15-30):(0.01-0.05):(4-10):(8-12):(6-8), wherein the oleic acid is any one or more of soya oil acid, tall oil acid, linoleic acid, linseed oil acid, calophyllum inophyllum oleic acid and dehydrated ricinolic acid. According to the water-based benzoic acid modified alkyd resin for the air-dry paint and the preparation method of the water-based benzoic acid modified alkyd resin, the prepared water-based benzoic acid modified alkyd resin has the beneficial effects of short surface drying time, high hardness and excellent water resistance and yellowing resistance.

Description

technical field [0001] The invention relates to a water-based benzoic acid modified alkyd resin for self-drying paint and the water-based self-drying paint prepared therefrom, belonging to the field of coatings. Background technique [0002] With the development of society and the progress of the times, people's awareness of environmental protection is getting stronger and stronger, and the requirements for industrial environmental protection are getting higher and higher. During the production and use of traditional oil-based paints, the emission of VOC and the volatilization of organic solvents have great harm to people's health and the environment. In addition, 75% of the raw materials of oil-based paints come from petrochemicals. With the increasing shortage of international energy sources, the use of organic solvents not only increases the cost, but also causes great waste. [0003] Coatings that use water as a solvent or dispersion medium are called water-based coatin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/08C09D5/02C09D7/12C08G63/49C08G63/78C08G63/85
CPCC09D167/08C08G63/48C08G63/78C08G63/85C08K2003/2241C08K2003/3045C08L2205/02C08L2205/03C09D5/02C09D7/61C09D7/63C09D7/65C08L83/04C08L83/00C08K3/22C08K3/30C08K5/06
Inventor 刘东李春雨郭小猛姜巍刘树飞田向前程璐
Owner HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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