PU anti-yellowing flat vanish sprayed on white finish for woodware

A white finish and anti-yellowing technology, applied in polyurea/polyurethane coatings, coatings, etc., can solve the problems of yellowing, aging, darkening, and color loss of the paint film, and achieve easy spraying and good gloss and color retention , good leveling effect

Active Publication Date: 2015-04-08
GUANGDONG BADESE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] PU anti-yellowing matt finish varnish is a kind of wood coating with excellent comprehensive performance. It is widely used to spray on white finish paint to keep the original color of the white surface and have better yellowing resistance. Conventional formulation After the paint is applied, the paint film is prone to yellowing and aging due to the benzene ring contained in the curing agent. Coupled with the influence of weather and climate and other factors, there will be disadvantages such as loss of light, color loss, and darkening over time.

Method used

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  • PU anti-yellowing flat vanish sprayed on white finish for woodware
  • PU anti-yellowing flat vanish sprayed on white finish for woodware
  • PU anti-yellowing flat vanish sprayed on white finish for woodware

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] A kind of PU anti-yellowing matte varnish sprayed on the white finish paint for woodware, consists of the following components by weight percentage:

[0052] Component A:

[0053]

[0054] HDI curing agent 28%, dehydrated n-butyl acetate 72%;

[0055] Among them, component A and component B are stored separately. When using, mix component A and component B according to the weight ratio of 1:0.2 and then dilute.

[0056] Described cellulose acetate liquid is made up of following weight percent components:

[0057] Cellulose acetate 20%, n-butyl acetate 80%.

[0058] Described polyamide wax anti-settling slurry is made up of following weight percent components:

[0059] Polyamide Wax 30%, Xylene 70%.

[0060] As a further improvement: the PU anti-yellowing matte varnish sprayed on the white topcoat for the described a kind of woodware also includes component C for dilution, and the component C is composed of the following components in percentage by weight :

[0...

Embodiment 2

[0082] A kind of PU anti-yellowing matte varnish sprayed on the white finish paint for woodware, consists of the following components by weight percentage:

[0083] Component A:

[0084]

[0085] Component B:

[0086] HDI curing agent 40%, dehydrated n-butyl acetate 60%;

[0087] The sum of the percentages of each component of component A meets 100%, and the sum of the percentages of each component of component B meets 100%;

[0088] Among them, component A and component B are stored separately. When using, mix component A and component B according to the weight ratio of 1:0.3 and then dilute.

[0089] As a further improvement: it also includes component C for dilution, and the component C is made up of the following components in percentage by weight:

[0090] n-butyl acetate 85%, propylene glycol methyl ether acetate 10%, cyclohexanone 5%;

[0091] The sum of the percentages of each component of component C satisfies 100%.

[0092] The weight ratio of the components ...

Embodiment 3

[0094] A kind of PU anti-yellowing matte varnish sprayed on the white finish paint for woodware, consists of the following components by weight percentage:

[0095] Component A:

[0096]

[0097] Component B:

[0098] HDI curing agent 30%, dehydrated n-butyl acetate 70%;

[0099] The sum of the percentages of each component of component A meets 100%, and the sum of the percentages of each component of component B meets 100%;

[0100] Among them, component A and component B are stored separately. When using, mix component A and component B according to the weight ratio of 1:0.2~0.3 and then dilute.

[0101] Described cellulose acetate liquid is made up of following weight percent components:

[0102] Cellulose acetate 20%, n-butyl acetate 80%.

[0103] Described polyamide wax anti-settling slurry is made up of following weight percent components:

[0104] Polyamide Wax 30%, Xylene 70%.

[0105] As a further improvement, it also includes component C for dilution, and th...

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Abstract

The invention relates to PU anti-yellowing flat vanish sprayed on white finish for woodware. The PU anti-yellowing flat vanish comprises a component A, a component B and a component C for dilution, wherein the components A and B are separately stored and are mixed to react during use and then are diluted; the weight ratio of the component A, the component B and the component C for dilution is 1:(0.2-0.3):(0.4-0.6). The PU anti-yellowing flat vanish provided by the invention is uniform in gloss, strong in adhesive force, good in high-temperature resistance, water resistance and chemical resistance and good in light and color retaining property; the PU anti-yellowing flat vanish is good in flatting property and easy to spray, and particularly has an excellent effect in anti-yellowing and anti-weather performances.

Description

technical field [0001] The invention relates to a PU anti-yellowing matte varnish sprayed on a white finish paint for woodware, and belongs to the technical field of woodware paint manufacturing industry. Background technique [0002] PU anti-yellowing matt finish varnish is a kind of wood coating with excellent comprehensive performance. It is widely used to spray on white finish paint to keep the original color of the white surface and have better yellowing resistance. Conventional formulation After the paint is applied, the paint film is prone to yellowing and aging due to the benzene ring contained in the curing agent. Coupled with the influence of weather and climate and other factors, there will be disadvantages such as loss of light, color loss, and darkening over time. Contents of the invention [0003] The object of the present invention is to aim at the deficiencies of the prior art, and provide a PU anti-yellowing matte varnish for wood with high yellowing resis...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D7/12C09D7/00
CPCC08L2205/03C09D7/20C09D7/65C09D175/04C08L1/12C08L77/00
Inventor 方学平黄育建
Owner GUANGDONG BADESE CHEM
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