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Water paint base and water paint containing same

A technology of water-based paint and base material, applied in the direction of coating, etc., can solve the problems of limited coating methods and achieve high gloss effect

Active Publication Date: 2011-05-25
LAPO MATERIAL INNOVATION GZ
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the applicable coating methods of existing water-based coatings are limited and cannot well meet the needs of users.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The components in Table 1 were mixed according to the indicated contents using the following conditions: put isophthalic acid, neopentyl glycol, trimethylolpropane, adipic acid, butenedioic anhydride and tributyltin into the reaction pot, pass nitrogen Raise the temperature to 230°C to carry out the esterification reaction. During the temperature rise process, the speed of rising 15°C every 60 minutes is controlled, and the water output is controlled at 15%. During the last two hours of the reaction, samples were taken every 30 minutes to measure the acid value. When the acid value was lower than 15 mg KOH / g, the temperature was lowered to 180° C. and trimellitic anhydride was added for reaction until the acid value was lower than 20 mg KOH / g to obtain resin I. At this point the temperature was lowered to 70°C and propylene glycol ether was added. Add acrylate mixed monomers at this temperature (each component and content in the mixture in every 100g are as shown in Tab...

Embodiment 2

[0022] Mix the components in Table 3 according to the indicated content using the following conditions: put isophthalic acid, propylene glycol, pentaerythritol, succinic acid, butenedioic anhydride and tributyltin into the reaction pot, and heat up to 230°C with nitrogen to carry out esterification For chemical reaction, the heating process is controlled at a rate of 20°C every 60 minutes, and the water output is controlled at 15%. During the last two hours of the reaction, samples were taken every 30 minutes to measure the acid value. When the acid value was lower than 15 mg KOH / g, the temperature was lowered to 180° C. and trimellitic anhydride was added for reaction until the acid value was lower than 20 mg KOH / g to obtain resin I. At this point the temperature was lowered to 85°C and propylene glycol methyl ether was added. Add acrylate mixed monomers at this temperature (each component and content in the mixture in every 100g are shown in Table 4), and continue to keep fo...

Embodiment 3

[0029] The components in Table 5 are mixed according to the indicated content using the following conditions: put isophthalic acid, hexanediol, glycerol, sebacic acid, dimer soy oil and triethylaluminum into the reaction pot, and pass nitrogen Raise the temperature to 240°C to carry out the esterification reaction. During the temperature rise process, the speed of rising 20°C every 60 minutes is controlled, and the water output is controlled at 20%. In the last two hours of the reaction, samples were taken every 30 minutes to measure the acid value. When the acid value was lower than 15 mg KOH / g, the temperature was lowered to 190° C. and trimellitic anhydride was added for reaction until the acid value was lower than 20 mg KOH / g to obtain resin I. At this point the temperature was lowered to 85°C and propylene glycol methyl ether was added. Add acrylate mixed monomers at this temperature (each component and content in the mixture in every 100g are shown in Table 6), and conti...

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PUM

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Abstract

The invention provides a water paint base which is characterized in that the water paint base is prepared by the following method: carrying out an esterification reaction among C8-C16 aromatic dicarboxylic acid, C3-C6 diol, C3-C8 polyol, C4-C10 aliphatic dibasic acid and C4-C36 unsaturated dicarboxylic acid under the action of Louis acid, when the acid value is less than 15mg KOH / g, cooling to the temperature of 180 DEG C-190 DEG C and adding trimellitic anhydride, and reacting at the above temperature till the acid value is less than 20mg KOH / g, obtaining a resin I; cooling to the temperature of 70 DEG C-100 DEG C, and adding alcohol ethers compounds which account for 15-25 wt% of the resin I; then adding crylic acid mixed monomers which account for 4-20 wt% of the resin I, and continuing to react for 2-3 at the temperature of 70 DEG C-100 DEG C, then discharging and adjusting the pH value to 7-8. The invention also provides the water paint containing the above water paint base.

Description

technical field [0001] The invention relates to a water-based paint base material, in particular to the water-based paint base material prepared by using monomers with double bonds and containing hydroxyl or carboxyl functional groups. The present invention also relates to a water-based paint containing the above-mentioned binder. Background technique [0002] As people pay more and more attention to environmental protection, conventional solvent-based paints are gradually replaced by water-based paints. Water-based coatings use water as a solvent, which eliminates the possibility of fire during construction and reduces air pollution. It only uses a small amount of low-toxic alcohol ether organic solvents, which improves the working environment. Generally, the organic solvent of water-based paint (accounting for paint) is between 10% and 15%, which has a significant effect on reducing pollution and saving resources. Moreover, water-based coatings can be directly coated on ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F283/01C08G63/52C08G63/91C09D151/08
Inventor 冯志文卢少娟
Owner LAPO MATERIAL INNOVATION GZ