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Polyurethane modified unsaturated polyester varnish

A polyurethane modified and unsaturated technology, which is applied in polyurea/polyurethane coatings, polyester coatings, coatings, etc., can solve the problems of technical indicators that need to be improved, complex processes, and high costs, and achieves the goal of preventing pinholes or other surfaces The effect of defects, good flexibility and low cost

Inactive Publication Date: 2006-08-23
GUANGDONG LANYANG SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned patents use polyurethane paint synthesized from polyester waste, etc., the process is complex, the cost is high, and some technical indicators still need to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] A polyurethane-modified unsaturated polyester clear finish paint, including polyurethane (PU) and unsaturated polyester (PE), according to the actual paint film requirements, mixed with oil in a ratio of 1:1, and then applied to dry after mixing Can be ground and polished afterwards. The component distribution ratio of the PU oil is: PU main paint: curing agent: PU diluent = 1: 1: 1; the PU main paint is composed of the following components, containing 90% alkyd resin, 9.2% xylene, 0.5% leveling agent, 0.3% defoamer; the curing agent is a 40% solid containing toluene diisocyanate (TDI)-trimethylolpropane composite; the PU diluent consists of the following components, two Toluene 50%, butyl acetate 40%, cyclohexanone 10%.

[0012] The component distribution ratio of the PE oil is: PE main paint: accelerator: initiator=100:1:1; the PE main paint is composed of the following components, unsaturated polyester resin 85%, styrene 14.2%, Leveling agent 0.5%, defoamer 0.3%; t...

Embodiment 2

[0015] A polyurethane-modified unsaturated polyester clear finish paint is composed of polyurethane (PU) and unsaturated polyester (PE) mixed with oil according to the proportion, and the proportion range is PU:PE=1:2.

[0016] The component distribution ratio of the PU oil is: PU main paint: curing agent: PU diluent = 1: 1: 0.6; the PU main paint is composed of the following components, containing 89.5% alkyd resin, 10% xylene, 0.3% leveling agent, 0.2% defoamer; the curing agent is a 40% solid containing toluene diisocyanate (TDI)-trimethylolpropane composite; the PU diluent consists of the following components, two Toluene 55%, butyl acetate 35%, cyclohexanone 10%.

[0017] The component distribution ratio of the PE oil is: PE main paint: accelerator: initiator=100: 1.2: 1.5; the PE main paint is composed of the following components, unsaturated polyester resin 83.5%, styrene 16%, Leveling agent 0.3%, defoamer 0.2%; the accelerator is cobalt isooctanoate with a metal cobal...

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PUM

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Abstract

The present invention discloses a kind of polyurethane modified unsaturated polyester varnish. The varnish is compounded with polyurethane and unsaturated polyester in the ratio of 1 to 0.3-5. The polyurethane consists of polyurethane paint, curing agent and diluent in the ratio of 1 to 1 to 0.6-1; and the polyurethane paint consists of alkyd resin 80-93 wt%, xylene 5-10 wt%, leveling agent 0.3-0.5 wt% and defoaming agent 0.1-0.3 wt%. The unsaturated polyester consists of unsaturated polyester paint, promoter and initiator in the ratio of 100 to 0.8-1.2 to 1-1.5, and the unsaturated polyester paint consists of unsaturated resin 80-90 wt%, styrene 9-18 wt%, leveling agent 0.3-0.5 wt% and defoaming agent 0.2-0.3 wt%. The present invention has the advantages of high hardness, good fullness, high adhesion, high flexibility, etc.

Description

technical field [0001] The invention relates to the technical field of wood product paint, in particular to a novel wood product polishing finish paint with good decorative effect. Background technique [0002] At present, wood product polishing finishes mainly include polyurethane paint and unsaturated polyester paint, which have the advantages of strong adhesion, good flexibility, and easy polishing. They are widely used in wood product surface polishing, but they are used for high-end export furniture. Or musical instruments, etc., products requiring excellent technical indicators still need to be imported, and the cost is relatively high; for example, the application number is 99101988, the application date is April 3, 1999, and the invention name is an invention patent application for a polyurethane paint. The characteristic is that it is a two-component paint, and the weight ratio of components A and B is 1:2.5-4 when painting; the weight percentage of component A is: ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/06C09D175/04
Inventor 肖亚亮叶义英
Owner GUANGDONG LANYANG SCI & TECH
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