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Chlorinated sorbitol alkyd resin and preparation method thereof

A technology of chlorinated sorbitol and alkyd resin, which is applied in the field of chlorinated sorbitol alkyd resin and its preparation, can solve the problems of high production and use costs of anti-corrosion coatings, achieve reduced microscopic regularity, good pigment wettability, Inexpensive effect

Active Publication Date: 2014-07-30
山东齐鲁漆业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem of high production and use costs of anti-corrosion coatings, the invention provides a chlorinated sorbitol alkyd resin with low price, excellent paint-making performance and anti-corrosion performance and a preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1), pre-feed CO into the empty reactor 2 6min, the gas flow rate is 3m 3 / h;

[0035] (2), add sorbitol aqueous solution 164.0kg, xylene 20.0kg successively, stir and heat up to 150 ℃ and keep warm for 60min; Remove the water in the sorbitol aqueous solution;

[0036] (3) Add 114.0kg of soybean oil fatty acid, 69.0kg of phthalic anhydride, and 5.0kg of benzoic acid in sequence, heat up to 180°C for 90 minutes, heat up to 240°C for 5 hours, and the acid value is equal to 16mgKOH / g;

[0037] (4), the temperature is lowered to 160° C., the reactant is transferred to a dilution kettle, and 265.0 kg of xylene is added. When the temperature drops to 115° C., filter with a filter bag of 20 μm specification.

[0038] (5), gained sorbitol alkyd resin is transferred to reactor after being down to room temperature, feeds chlorine gas, and gas flow rate is 0.05m 2 / h, react to iodine value 4g I 2 / 100g to obtain chlorinated sorbitan alkyd resin.

Embodiment 2

[0040] (1), pre-feed CO into the empty reactor 2 6min, the gas flow rate is 3m 3 / h;

[0041] (2), add sorbitol aqueous solution 155.0kg, xylene 15.0kg successively, stir and heat up to 140 ℃ and keep warm for 50min; Remove the water in the sorbitol aqueous solution;

[0042] (3) Add 130.0kg of soybean oil fatty acid, 60.0kg of phthalic anhydride, and 3.0kg of benzoic acid in sequence, heat up to 180°C for 90 minutes, heat up to 240°C for 5 hours, and the acid value is equal to 18.0mgKOH / g;

[0043] (4), the temperature is lowered to 160° C., the reactants are transferred to a dilution kettle, and 260.0 kg of xylene is added, and when the temperature drops to 100° C., filter with a filter bag of 10 μm specification.

[0044] (5), gained sorbitol alkyd resin is transferred to reaction kettle after being down to room temperature, feeds chlorine gas, and gas flow rate is 0.07m 2 / h, react to iodine value 3.0g I 2 / 100g to obtain chlorinated sorbitan alkyd resin.

Embodiment 3

[0046] (1), pre-feed CO into the empty reactor 2 6min, the gas flow rate is 3m 3 / h;

[0047] (2), add sorbitol aqueous solution 164.0kg, xylene 20.0kg successively, stir and heat up to 145 ℃ and keep warm for 60min; Remove the water in the sorbitol aqueous solution;

[0048] (3) Add 114.0kg of soybean oil fatty acid, 69.0kg of phthalic anhydride, and 5.0kg of benzoic acid in sequence, heat up to 180°C for 90 minutes, heat up to 240°C for 5 hours, and the acid value is equal to 16mgKOH / g;

[0049] (4), the temperature is lowered to 150° C., the reactant is transferred to a diluting kettle, and 265.0 kg of xylene is added. When the temperature drops to 105° C., filter with a filter bag of 10 μm specification.

[0050] (5), gained sorbitol alkyd resin is transferred to reactor after being down to room temperature, feeds chlorine gas, and gas flow rate is 0.1m 2 / h, react to iodine value 2.0g I 2 / 100g to obtain chlorinated sorbitan alkyd resin.

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Abstract

The invention relates to chlorinated sorbitol alkyd resin and a preparation method thereof. The preparation method comprises the steps of preparing sorbitol alkyd resin by taking 70wt% sorbitol water liquid, phthalic anhydride, soybean oil fat acid and benzoic acid as raw materials, diluting, and then directly chlorinating to obtain the chlorinated sorbitol alkyd resin. The chlorinated sorbitol alkyd resin provided by the invention has the advantages of low cost, strong paint preparation performance, strong corrosion resistance and the like. In addition, the chlorinated sorbitol alkyd resin is simple and convenient in preparation process, suitable for industrial production and wide in application prospect in the field of coatings.

Description

Technical field: [0001] The invention relates to a chlorinated sorbitol alkyd resin and a preparation method thereof. The chlorinated sorbitol alkyd resin has good corrosion resistance. Background technique: [0002] Sorbitan alkyd resin has become the largest and most widely used synthetic resin in the coatings industry because of its wide source of synthetic raw materials, flexible formula, simple process, excellent comprehensive performance of coating film, and can be endowed with various performance characteristics through various modifications. The alkyd paint formulated by sorbitol alkyd resin is still one of the most important paint varieties in the paint market so far, and its output accounts for about 20% to 25% of the total paint industry. Alkyd paint based on sorbitol alkyd resin has the advantages of good self-drying property, low price, diverse and simple construction, and is widely used as decorative anti-corrosion materials on indoor and outdoor buildings, ste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/91C08G63/49
Inventor 孙洪源孙亮亮隋春喜孙文俊王庆军段洪东尹晓聪
Owner 山东齐鲁漆业有限公司
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