Polyurethane (PU polyester) antibacterial wood varnish (dull, clear)

A wood varnish and polyurethane technology, applied in polyurea/polyurethane coatings, polyester coatings, coatings, etc., can solve the problems of easy regeneration of bacteria, low antibacterial efficiency, easy loss of drugs, etc.

Active Publication Date: 2005-04-06
上海展辰涂料有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantage is that the drug is easy to lose, the bacteria are easy to regenerate, the antibacterial time is short, the antibacterial efficiency is low, and the cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] After testing, the content of harmful substances is as follows:

[0020] Volatile organic compound (VOC) 648g / L,

[0021] Benzene was not detected,

[0022] The sum of toluene and xylene 28.5%,

[0023] Free toluene diisocyanate 0.5%,

[0024] After testing, the main quality and technical indicators are as follows:

[0025] Appearance of the coating film The surface is flat and smooth,

[0026] Drying time (25℃)

[0027] Surface dry 15min

[0028] Hard work ≤24h

[0029] Adhesion ≤ Grade 3

[0030] Hardness (pencil method, 72h) ≥H

[0031] Water resistance (25℃, 18h) no change

[0032] Heat resistance (60℃, 2h) no change

[0033] The present invention is achieved through the following schemes.

[0034] Example 1 (matte): Take 50 kg% of the adduct of toluene diisocyanate (TDI) and trimethylolpropane, 50 kg of butyl acetate, add 70 kg of alkyd resin, 8 kg of butyl acetate, and dissolve Foaming agent (CFC-151) 0.2 kg, lev...

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PUM

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Abstract

The invention involves a kind of polyurethane (the PU polyester) the antibacterial wooden article varnish (lusterless, bright), its characteristic lies in: By A, the B two components constitutions, the A component is composed for following constituent and the per cent by weight: The toluene two isocyanogens diethylene glycol dinitrate (TDI) and three methylol propane addition compound either TDI three is concrete or their mixture 25%~65%, acetic acid Ding Zhihuo ethyl acetate either toluene or their mixture 35%~75%, B component for following constituent and per cent by weight composition: The alkyd resin either the modified alkyd resin or their mixture 55.65%~75.55%, the cutyl acetate either the cutyl acetate or the xylene or their mixture 7.86%~9.86%, the defoamer 0.16%~0.36%, flows the even medicinal preparation 0.20%~0.40%, the deadening agent 0%~12.50%, antibiotics 0.10%~5.0%, the dispersing agent 0.10%~0.30%, guards against sinks medicinal preparation 0.04%~1.0%, the nitric acid cellulose ester 0%~15.57%, armor component and second grade component according to 0.3~1: 1 proportion mix construction. The invention merit is can kill extinguishes wooden woodware surface the and so on the furniture, wood floor bacterium.

Description

technical field [0001] The invention relates to a wood coating, in particular to a polyurethane (PU polyester) antibacterial wood varnish (matte, bright). Background technique [0002] At present, there are harmful bacteria on the surface of wood products such as wooden furniture and wooden floors. In order to keep the surface of the products hygienic, external measures are usually taken, such as spraying drugs and wiping drugs. Its disadvantages are easy loss of medicine, easy regeneration of bacteria, short antibacterial time, low antibacterial efficiency and high cost. . Contents of the invention [0003] The purpose of the present invention is to solve the problems existing in wood coatings for wooden furniture, wooden floors, etc. coating. The present invention designs a kind of polyurethane (PU polyester) antibacterial woodware varnish (matte, bright light), it is characterized in that: be made of A, B two components, [0004] Component A is composed of the follo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D175/04
Inventor 陈寿生
Owner 上海展辰涂料有限公司
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