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Unsaturated polyester modified polyurethane high-gloss top-coat paint and preparation method and using method thereof

A polyester modified and unsaturated technology, applied in polyurea/polyurethane coatings, coatings, etc., can solve problems such as troublesome, PU clear topcoats that cannot be cleared by unsaturated polyester, and achieve strong adhesion, The effect of good fullness and high hardness

Inactive Publication Date: 2014-02-12
SHENZHEN GRANDLAND ENVIRONMENTAL COATING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many musical instrument manufacturers also know this reason, but PU clear topcoat cannot achieve the effect of unsaturated polyester clear surface, so it can only be handled with special care, especially when exporting musical instruments often fail to pass the inspection at the shore, it is even more troublesome

Method used

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  • Unsaturated polyester modified polyurethane high-gloss top-coat paint and preparation method and using method thereof
  • Unsaturated polyester modified polyurethane high-gloss top-coat paint and preparation method and using method thereof
  • Unsaturated polyester modified polyurethane high-gloss top-coat paint and preparation method and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Preparation of unsaturated polyester modified polyurethane high-gloss clear topcoat comprises the following steps (see Table 3 for each component and weight ratio):

[0068] Step 1: Prepare unsaturated polyester main paint components (take each component according to the weight listed in "PE Example 1" in Table 1):

[0069] Add unsaturated polyester topcoat resin, defoamer, and wetting agent to the container in sequence, disperse for 3-5 minutes at 500RPM until uniform; add leveling agent A, leveling agent B, styrene and butyl acetate in sequence, 500RPM Disperse for 5 minutes until uniform, and filter through 200 mesh to obtain the unsaturated polyester main paint component of this embodiment.

[0070] Step 2: Prepare the polyurethane main paint components (take each component according to the weight listed in "PU Example 1" in Table 2):

[0071] Put synthetic fatty acid resin and high hardness acrylic resin into the container, disperse at 500RPM for 3-5 minutes; add ...

Embodiment 2

[0081] The difference from Example 1 is: the preparation of unsaturated polyester main paint components in step one is to get each component according to the weight listed in "PE Example 1" in Table 1; the preparation of polyurethane main paint components in step two is according to the weight listed in Table 1 The weight listed in "PU Example 2" in the second is taken from each component.

[0082] The performance test results of the finished product of unsaturated polyester modified polyurethane high-gloss clear topcoat are shown in the corresponding data of Example 2 in Table 4.

Embodiment 3

[0084] The difference from Example 1 is: the preparation of unsaturated polyester main paint components in step one is to get each component according to the weight listed in "PE Example 1" in Table 1; the preparation of polyurethane main paint components in step two is according to the weight listed in Table 1 The weight listed in "PU Example 3" in the second is taken from each component.

[0085] The performance test results of the finished product of unsaturated polyester modified polyurethane high-gloss clear topcoat are shown in the corresponding data of Example 3 in Table 4.

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Abstract

Provided is unsaturated polyester modified polyurethane high-gloss top-coat paint. The weight ratio of components in raw material formula is that unsaturated polyester main paint: polyurethane main paint: polyurethane curing agent: blue water: clear water: diluents = 100:100:100:0.8:0.8:80. The unsaturated polyester main paint is prepared, by the following weight ratio, unsaturated polyester finish paint resin 80-85, styrene 10-13, butyl acetate 4-6, flatting agent A 0.2-0.5, flatting agent B 0.3-0.5, wetting agent 0.3-0.5 and defoaming agent 0.2-0.5. The unsaturated polyester finish paint resin is air-seasoning unsaturated polyester finish paint resin. The flatting agent A is an acrylate flatting agent. The flatting agent B is an organic silicon flatting agent. The polyurethane main paint is prepared, by the following weight ratio, synthetic fatty acid resin 30-50, high-hardness acrylic resin 30-50 and the like. The unsaturated polyester modified polyurethane high-gloss top-coat paint has the advantages of being high in hardness, good in fullness, strong in adhesion, good in flexibility, easy to polish and the like.

Description

technical field [0001] The invention relates to an unsaturated polyester modified polyurethane high-gloss clear topcoat and a preparation method and application method thereof. Background technique [0002] Domestic high-end musical instruments are mainly painted with unsaturated polyester topcoat, because of its good fullness and hardness, which cannot be achieved by PU topcoat. However, in the process of packaging, transportation and use, the paint film will turn white or even fall off if you accidentally touch it. It is mainly due to the relatively poor film toughness and adhesion of unsaturated polyester clear topcoat. Many musical instrument manufacturers also know this reason, but PU clear topcoat cannot achieve the effect of unsaturated polyester clear surface, so it can only be handled with special care, especially when exporting musical instruments often fail to pass the inspection at the shore, it is even more troublesome. [0003] In order to meet the requiremen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/14C09D7/06C09D7/47
Inventor 黄必文胡基如丁力宋梓琪
Owner SHENZHEN GRANDLAND ENVIRONMENTAL COATING CO LTD
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