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Water-based acrylic acid modified saturated polyester resin and preparation method thereof

A water-based acrylic and polyester resin technology, applied in the chemical field, can solve the problems of high VOC content, easy hydrolysis, and low construction solid content, and achieve the effects of increasing construction solid content, reducing viscosity, and improving hydrolysis resistance

Inactive Publication Date: 2014-02-05
BEIJING JINHWEILI APPLIED CHEM PROD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current water-based saturated polyester resin products have the defects of low solid content in construction, easy hydrolysis, and high VOC content.

Method used

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  • Water-based acrylic acid modified saturated polyester resin and preparation method thereof
  • Water-based acrylic acid modified saturated polyester resin and preparation method thereof
  • Water-based acrylic acid modified saturated polyester resin and preparation method thereof

Examples

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Embodiment Construction

[0027] The principles and features of the present invention are described below, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0028] The specific implementation steps are as follows:

[0029] 1) Put polybasic acid, E10P, and polyol into a 1L reaction flask equipped with stirring device, reflux condensing device, dropping device and temperature control device, feed nitrogen gas, slowly heat to 190°C, keep warm for 1 hour, and slowly heat up to 250°C, keep warm for 6h, add xylene and reflux until the acid value is 20mgKOH / g, control the temperature of the distillation head during the reaction to be less than 100°C;

[0030] 2) Cool down to 110°C and add co-solvent;

[0031] 3) Add the mixture of acrylic acid monomer I and initiator I dropwise at 120°C, and finish dropping in 4 hours;

[0032] 4) Add the mixture of acrylic acid monomer II and initiator II dropwise at 120°C for 1 hour; ...

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Abstract

The invention relates to a water-based acrylic acid modified saturated polyester resin and a preparation method thereof. The water-based acrylic acid modified saturated polyester resin is prepared from the following raw materials in percentage by weight: 5-40% of polyatomic acid, 3-40% of polyhydric alcohol, 0.5-5% of cosolvent, 5-20% of acrylic monomer I, 0.5-5% of acrylic monomer II, 0.01-5% of initiator, 0.5-5% of neutralizer,2-20% of glycidyl tertiary carboxylic ester and 40-50% of distilled water. The water-based acrylic acid modified saturated polyester resin prepared by the invention has the advantages of excellent stability, high solids, low viscosity and low content of VOC (Volatile Organic Compounds) and is mainly applicable to amino-baking paint for waterborne coatings.

Description

technical field [0001] The invention relates to a water-based acrylic modified saturated polyester resin and a preparation method thereof, belonging to the field of chemistry. Background technique [0002] Water-based coatings are more and more widely used as low-VOC content coatings. However, because of the low solid content of water-based coatings, it is difficult to achieve the high decorative effect of the soluble type. As the film-forming substance of water-based paint, water-based resin, the solid content, viscosity and VOC content of its aqueous dispersion play a decisive role in the performance of the paint film and the impact on the environment. Saturated polyester has high gloss, high fullness, and excellent weather resistance, and is used in medium and high-grade amino baking varnishes and polyurethane topcoats. However, the current water-based saturated polyester resin products have the defects of low solid content in construction, easy hydrolysis, and high VOC...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/02C08G63/64C09D151/08
CPCC08F220/20C09D167/06C08F220/1804C08F220/1808C08F220/1811
Inventor 陈明秦文王英
Owner BEIJING JINHWEILI APPLIED CHEM PROD
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