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High-solid low-viscosity resin composition containing polyether modified polyester

A technology of resin composition and polyether modification, which is applied in the field of high-solid and low-viscosity resin composition containing polyether-modified polyester, and solvent-based coating composition, and can solve the problems that cannot be formulated with coating composition, gel, Resin composition is too viscous and other problems

Pending Publication Date: 2020-01-21
GUANGDONG HUARUN PAINT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If an attempt is made to further reduce the solvent, the resulting resin composition becomes too viscous, or even gels, to be used in the formulation of coating compositions

Method used

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  • High-solid low-viscosity resin composition containing polyether modified polyester
  • High-solid low-viscosity resin composition containing polyether modified polyester
  • High-solid low-viscosity resin composition containing polyether modified polyester

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preparation example Construction

[0037] In the preparation of the resin composition according to the invention polyether polyols are necessary. As described above, the inventors of the present invention have surprisingly found that by introducing polyether polyols containing poly(oxyalkylene) segments during the preparation of the resin composition, it is possible to significantly reduce the solid content of the resin composition while maintaining the solid content of the resin composition. Its viscosity is such that the resin composition can be formulated into a solvent-based coating composition with a VOC emission not exceeding 420 g / L without additional diluents.

[0038] Therefore, the present invention also relates to the use of the above-mentioned polyether polyol for preparing the high-solid and low-viscosity resin composition comprising polyether-modified polyester according to the present invention.

[0039] Preferably, the components used to prepare the resin composition of the present invention com...

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Abstract

The invention relates to a high-solid low-viscosity resin composition containing polyether modified polyester. Wherein the resin composition has a solid content of at least about 75 wt%, based on theweight of the polyether-modified polyester, and a viscosity of 6000 mPa*s or less, measured with a BROOKFEELD viscometer at 25 DEG C, and the polyether-modified polyester has poly (oxyalkylene) fragments.

Description

technical field [0001] The invention relates to a high-solid and low-viscosity resin composition, in particular to a high-solid and low-viscosity resin composition comprising polyether modified polyester. The present invention also relates to a solvent-borne coating composition comprising said resin composition. Background technique [0002] In recent years, with people's attention to the environment, many countries have enacted environmental laws and required further reduction of the amount of VOCs that are allowed to be released into the air from coating compositions, especially solvent-based coating compositions. For example, in China, since February 2015, solvent-based coating compositions with VOC content exceeding 420g / L will be subject to additional consumption tax at a rate of up to 4%, which will greatly increase the cost of coating companies. Therefore, there is a sharp increase in demand for high-solid and low-viscosity resin compositions for formulating solvent-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/668C09D175/06C09D7/20
CPCC08G63/668C09D175/06C09D7/20
Inventor 开卫华曾小鹏赵熙
Owner GUANGDONG HUARUN PAINT CO LTD