Vinyl modified polyester polyatomic alcohol, two-part curable paint composition and condensate

A technology of polyester polyol and modified polyester, applied in polyurea/polyurethane coatings, coatings, etc., can solve the problems of reduced water resistance, wear resistance, hardness and weather resistance of coating films, etc. To achieve the effect of preventing global warming

Active Publication Date: 2011-03-30
武蔵涂料株式会社 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, the vegetable oil-modified polyester polyol (alkyd resin) described in Patent Document 1 has the following problems: its fatty acid skeleton will reduce the wear resistance, hardness and weather resistance of the coating film obtained, and, due to its Esters are strong, so the water resistance of the coating film will be reduced

Method used

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  • Vinyl modified polyester polyatomic alcohol, two-part curable paint composition and condensate
  • Vinyl modified polyester polyatomic alcohol, two-part curable paint composition and condensate
  • Vinyl modified polyester polyatomic alcohol, two-part curable paint composition and condensate

Examples

Experimental program
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Embodiment

[0084] The present invention will be described in more detail through examples below, but the present invention is not limited to these examples.

[0085] Here, the measurement of various physical properties in Examples and Comparative Examples was performed by the following methods.

[0086]

[0087] The measurement was carried out in accordance with JIS-K5600 using a Gardner bubble viscometer.

[0088]

[0089] Measurement was performed in accordance with JIS-K5601.

[0090]

[0091] Measurement was performed in accordance with JIS-K0070. However, the hydroxyl value of the vinyl polymer part (B) is calculated based on the composition of the monomer component (the monomer component constituting the vinyl polymer part) constituting the vinyl polymer part (B).

[0092]

[0093] Measured using a Heilig colorimeter.

[0094]

[0095] Determined by gel permeation chromatography.

[0096]

[0097] Measurement was performed in accordance with JIS-K5601.

manufacture example 1-

[0098] (Production Example 1 - Synthesis of polyester polyol (A) using vegetable oil-derived raw material)

[0099]In the reactor, add 700 parts by weight of castor oil fatty acid (raw material derived from vegetable oil), 23 parts by weight of benzoic acid, 62 parts by weight of phthalic anhydride, 80 parts by weight of sebacic acid (raw material derived from vegetable oil), 135 parts by weight of pentaerythritol parts by weight and 30 parts by weight of xylene as a reflux solvent, the temperature is raised to 240° C., and when the acid value is below 5, the pressure is reduced, and the xylene is distilled off, and then cooled to obtain polyester polyol (A-1 ). Various physical properties (viscosity, acid value, hydroxyl value, color number (Heilig)) of this polyester polyol are shown in Table 1.

manufacture example 2-

[0100] (Production Example 2 - Synthesis of polyester polyol (A) using vegetable oil-derived raw material)

[0101] In the reactor, add 500 parts by weight of castor oil fatty acid (raw material derived from vegetable oil), 289 parts by weight of sebacic acid (raw material derived from vegetable oil), 121 parts by weight of 1,10-decanediol (raw material derived from vegetable oil) , 90 parts by weight of glycerin (raw material derived from vegetable oil) and 30 parts by weight of xylene as a reflux solvent, the temperature was raised to 240° C., and the pressure was reduced when the acid value was 5 or less, and the xylene was distilled off, and then cooled. , to obtain polyester polyol (A-2). Various physical properties (viscosity, acid value, hydroxyl value, color number (Heilig)) of this polyester polyol are shown in Table 1.

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Abstract

The present invention provides a vinyl modified polyester polyatomic alcohol, a two-part curable paint composition and condensate. The vinyl modified polyester polyatomic alcohol is that a polyester polyol (A) obtained from seed fat is combined with a vinyl polymer part (B), wherein a component ratio of the polyester polyol (A) and the vinyl polymer part (B) is from 20:80 to 80:20 by weight, a rate of raw material from the seed fat is 20-80 wt% relative to a non-volatilization component in the vinyl modified polyester polyatomic alcohol, a hydroxyl value of the polyester polyol (A) is from 40 to 300, a hydroxyl value of the vinyl polymer part (B) is from 10 to 300, and a glassivation transition temperature of the vinyl polymer part (B) is from 20 to 150 DEG C.

Description

technical field [0001] The present invention relates to a vinyl-modified polyester polyol using a so-called carbon-neutral material, that is, a vegetable oil-derived raw material, a two-component curable coating composition and a cured product (cured coating film) using the same. Background technique [0002] At present, most paints are mainly manufactured using raw materials derived from fossil resources such as petroleum. When such paint is produced or discarded, carbon dioxide that causes global warming is generated, and the amount of carbon dioxide in the atmosphere increases. [0003] On the other hand, for raw materials derived from plants, since plants absorb carbon dioxide in the atmosphere and grow through photosynthesis, even if they generate carbon dioxide by, for example, burning, the carbon dioxide produced is equivalent to the carbon dioxide contained in the original atmosphere, Thereby the gains and losses are equal, therefore, the total amount of carbon diox...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/91C08G63/49C09D175/14
Inventor 小泽清弘箭竹义宏北岛裕笹仓敬司
Owner 武蔵涂料株式会社
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