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Modified epoxy ester resin, coating composition and preparation method

A technology of epoxy ester resin and epoxy resin, applied in anti-corrosion coatings, coatings, etc., can solve the problems of low paint film fullness, slow drying speed, poor salt spray resistance, etc., and achieve fast curing speed and strong adhesion , Good low temperature resistance

Active Publication Date: 2019-07-19
HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems of slow drying speed, low hardness, poor water resistance, poor salt spray resistance and low fullness of paint film in alkyd resin in the prior art, the present invention provides A kind of modified epoxy ester resin, coating composition and preparation method

Method used

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  • Modified epoxy ester resin, coating composition and preparation method

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Embodiment 1

[0039] The embodiment of the present invention provides a modified epoxy ester resin. The raw materials include the following components in parts by mass: 190 parts of linolenic acid, 120 parts of phthalic anhydride, 12.3 parts of refined adipic acid, and 40 parts of rosin , 45.4 parts of benzoic acid, 5.7 parts of maleic anhydride, 35.5 parts of neopentyl glycol, 85 parts of trimethylolpropane, 40.5 parts of pentaerythritol, 18.8 parts of polypropylene glycol, 40 parts of epoxy resin, 60 parts of trimellitic anhydride, monobutylene 0.1 part of base tin oxide, 230 parts of ethylene glycol butyl ether and 70 parts of hexamethylene diisocyanate.

[0040] The preparation steps of above-mentioned modified epoxy ester resin are as follows:

[0041] In step a, each component is weighed according to the design ratio of the modified epoxy ester resin, and the weighed linoleic acid, phthalic anhydride, refined adipic acid, rosin, benzoic acid, maleic acid Add dianhydride, neopentyl gl...

Embodiment 2

[0046] The embodiment of the present invention provides a modified epoxy ester resin. The raw materials include the following components in parts by mass: 200 parts of linoleic acid, 110 parts of phthalic anhydride, 13.5 parts of refined adipic acid, and 35 parts of rosin , 44.5 parts of benzoic acid, 6.5 parts of maleic anhydride, 30.6 parts of neopentyl glycol, 99 parts of trimethylolpropane, 48.5 parts of pentaerythritol, 17.8 parts of polypropylene glycol, 45 parts of epoxy resin, 62 parts of trimellitic anhydride, monobutylene 0.3 parts of base tin oxide, 200 parts of ethylene glycol butyl ether and 50 parts of hexamethylene diisocyanate.

[0047] The preparation steps of above-mentioned modified epoxy ester resin are as follows:

[0048] In step a, each component is weighed according to the design ratio of the modified epoxy ester resin, and the weighed linoleic acid, phthalic anhydride, refined adipic acid, rosin, benzoic acid, maleic acid Add dianhydride, neopentyl gl...

Embodiment 3

[0053] The embodiment of the present invention provides a modified epoxy ester resin. The raw materials include the following components in parts by mass: 210 parts of linoleic acid, 100 parts of phthalic anhydride, 14.3 parts of refined adipic acid, and 45 parts of rosin , 43.4 parts of benzoic acid, 7.7 parts of maleic anhydride, 40.6 parts of neopentyl glycol, 79 parts of trimethylolpropane, 44.5 parts of pentaerythritol, 16.8 parts of polypropylene glycol, 50 parts of epoxy resin, 64 parts of trimellitic anhydride, monobutylene 0.5 parts of base tin oxide, 260 parts of ethylene glycol butyl ether and 90 parts of hexamethylene diisocyanate.

[0054] The preparation steps of above-mentioned modified epoxy ester resin are as follows:

[0055] In step a, each component is weighed according to the design ratio of the modified epoxy ester resin, and the weighed linoleic acid, phthalic anhydride, refined adipic acid, rosin, benzoic acid, maleic acid Add dianhydride, neopentyl gl...

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Abstract

The invention discloses modified epoxy ester resin, a coating composition and a preparation method. Raw materials of the modified epoxy ester resin comprise: 190 to 210 parts of linoleic acid, 100 to120 parts of phthalic anhydride, 12.3 to 14.3 parts of refined adipic acid, 35-45 parts of rosin, 43.4 to 45.4 parts of benzoic acid, 5.7 to 7.7 parts of maleic anhydride, 30.6 to 40.6 parts of neopentyl glycol, 79-99 parts of trimethylolpropane, 40.5-48.5 parts of pentaerythritol, 16.8-18.8 parts of polyether polyol, 40-50 parts of epoxy resin, 60-64 parts of trimellitic anhydride, 0.1-0.5 part of catalyst, 200-260 parts of butyl cellosolve and 50-90 parts of isocyanate. The modified epoxy ester resin provided by the invention has three functions of alkyd, epoxy and polyurethane, and the performance index is obviously superior to that of a traditional product.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a modified epoxy ester resin, a coating composition and a preparation method. Background technique [0002] Alkyd resin is a synthetic resin widely used in the coating industry, and it is also one of the largest synthetic resins in my country. It has the advantages of cheap price, simple synthesis process, rich source of raw materials, simple construction, good miscibility, good wettability and dispersibility to pigments and fillers, and is widely used in wood varnishes, anti-corrosion primers, metal baking varnishes, etc. However, the alkyd resin products commonly used in the industry have the disadvantages of slow drying of the paint film, low hardness, poor water resistance, poor salt spray resistance, and low fullness of the paint film; for water-based alkyd resins, there are also disadvantages of poor storage stability. . In order to improve the shortcomings of alkyd resi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G81/00C09D187/00C09D5/08
CPCC08G81/00C09D187/005C09D5/08
Inventor 程璐李幕英王洁胡中源董立志
Owner HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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