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Environment-friendly polyester resin varnish

An environmentally friendly polyester and resin technology, applied in polyester coatings, coatings, etc., can solve problems such as high organic volatile content

Inactive Publication Date: 2018-04-20
黄岳娇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides an environmentally friendly polyester resin varnish to solve the problem that most of the existing polyester resin varnishes use xylene as a solvent, resulting in a large content of organic volatiles

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Example 1 An environmentally friendly polyester resin varnish is prepared from the following raw materials in weight proportions: 32 parts of diformic anhydride, 40 parts of phthalic anhydride, 16 parts of 1,2-propanediol, 6 parts of polyethylene glycol, organic tin 3 parts of catalyst, 100 parts of propylene glycol diacetate, 6 parts of cyclohexanone oxime, 12 parts of nano-sized titanium dioxide powder, and 2 parts of isothiazolone.

Embodiment 2

[0012] Example 2 An environmentally friendly polyester resin varnish is prepared from the following raw materials in the weight ratio: 28 parts of diformic anhydride, 48 parts of phthalic anhydride, 8 parts of 1,2-propanediol, 12 parts of polyethylene glycol, organotin 1.5 parts of catalyst, 85 parts of propylene glycol diacetate, 3 parts of cyclohexanone oxime, 17 parts of nano-sized titanium dioxide powder, and 4 parts of isothiazolone.

Embodiment 3

[0013] Example 3 An environmentally friendly polyester resin varnish is prepared from the following raw materials in the weight ratio: 38 parts of diformic anhydride, 36 parts of phthalic anhydride, 12 parts of 1,2-propanediol, parts of polyethylene glycol, organotin catalyst 2 parts, 60 parts of propylene glycol diacetate, 9 parts of cyclohexanone oxime, 5 parts of nano-sized titanium dioxide powder, and 5 parts of isothiazolone.

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PUM

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Abstract

The invention discloses environment-friendly polyester resin varnish, and belongs to the technical field of production of coatings. The environment-friendly polyester resin varnish is prepared from the following raw materials in parts by weight: 25 to 38 parts of dimethylbenzene anhydride, 36 to 48 parts of phthalic anhydride, 8 to 20 parts of 1,2-propylene glycol, 3 to 12 parts of polyethylene glycol, 1.5 to 3 parts of organic tin catalysts, 60 to 110 parts of propylene-glycol diacetate, 3 to 9 parts of cyclohexanone oxime, 5 to 17 parts of nano-scale titanium dioxide powder and 2 to 7 partsof isothiazolone. According to the environment-friendly polyester resin varnish disclosed by the invention, the problem that xylene is mostly used as a solvent in existing polyester resin varnish so as to cause more contents of organic volatile matters is solved. The polyester resin varnish disclosed by the invention has the special advantages of low toxicity, environmental protection, soft varnish film and difficulty in cracking and yellowing.

Description

technical field [0001] The invention belongs to the technical field of paint production, and in particular relates to an environment-friendly polyester resin varnish. Background technique [0002] Polyester resin paint is a solvent-free paint with unsaturated polyester and styrene as the main film-forming substances. Its characteristics are: it can be cured at high temperature or at room temperature (the construction temperature is not less than 15 degrees), and the drying speed is fast. The paint film is plump and thick, with good gloss, exposure and transparency. The paint film has high hardness, wear resistance, heat resistance, cold resistance, water resistance and resistance to various chemicals. The disadvantages of existing polyester resin varnishes are: poor film adhesion, poor stability, impact resistance, two-component curing type, troublesome construction preparation, difficult repair of smeared damage, difficult control of film dryness, and easy surface damage. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/02C09D7/61C08G63/672
CPCC09D167/02C08G63/672C08K2003/2241C08K2201/011
Inventor 黄岳娇
Owner 黄岳娇
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