Epoxy modified saturated polyester resin for undercoat of coil coating and undercoat of coil coating

A coil coating and epoxy modification technology, applied in the direction of anti-corrosion coatings, polyester coatings, coatings, etc., can solve the problems of weak deformation and weather resistance, little performance improvement, and poor miscibility, etc., to achieve comprehensive Effect of performance improvement, strong adhesion and corrosion resistance, good surface hardness and weather resistance
CN102993422AActive Publication Date: 2013-03-27WUXI HUHUANG PAINT
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
WUXI HUHUANG PAINT
Publication Date
2013-03-27

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Abstract

The invention discloses an epoxy modified saturated polyester resin for an undercoat of a coil coating and the undercoat of the coil coating. The epoxy modified saturated polyester resin comprises the following components in parts by weight: 50-80 parts of methylpropanediol, 100-140 parts of epoxy resin 609, 110-150 parts of isophthalic acid, 110-150 parts of hexanedioic acid, 105-145 parts of neopentyl glycol, 0.1-0.6 part of organic tin, 20-40 parts of dimethylbenzene, 380-500 parts of S-150# solvent oil and 30-60 parts of propylene glycol monomethyl ether. The prepared epoxy modified saturated polyester resin is applied to the undercoat of the coil coating, so that the undercoat of the coil coating is high in adhesion and corrosion resistant performance to metals, high in machinability, high in deformation property under high surface hardness and weather ability and low in cost, and the comprehensive performance is obviously improved.
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Description

technical field

[0001] The invention belongs to the field of chemical industry, and in particular relates to an epoxy-modified saturated polyester resin for a coil coating primer and a coil coating primer. Background technique

[0002] With the continuous maturity of technology, coil coatings are developing rapidly. Now coil coatings on the market mainly include polyester resin coil coatings, acrylic resin coil coatings, and epoxy resin primer coatings. Coil coatings composed of polyester resins have high processability and excellent deformability with good surface hardness. Acrylic resin coil coating has good hardness and weather resistance, and the processability is average. Epoxy paint has strong adhesion and corrosion resistance to metals, but is weak in deformation and weather resistance. The most common coil coatings in the market are cold blend resins. We hope to use the complementary properties of the resins to improve the performance of the product. There is one m...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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