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Aqueous coating resin composition

A resin composition, water-based resin technology, applied in the direction of coating, latex paint, etc., to achieve the effect of excellent pollution resistance, weather resistance and pollution resistance

Active Publication Date: 2009-12-30
NIPPON SHOKUBAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still room for making it into a coating that is more excellent in various properties such as stain resistance required for coatings used in outdoor buildings, etc.

Method used

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  • Aqueous coating resin composition
  • Aqueous coating resin composition
  • Aqueous coating resin composition

Examples

Experimental program
Comparison scheme
Effect test

manufacture example A1

[0186] 432 parts of deionized water were added to a flask equipped with a dropping funnel, a stirrer, a nitrogen gas introduction tube, a thermometer, and a reflux condenser. In a dropping funnel, prepare 145 parts of deionized water, 60 parts of a 25% aqueous solution of an emulsifier (for example: AQUARON-HS-10 / manufactured by Daiichi Kogyo Pharmaceutical Co., Ltd.), 110 parts of 2-ethylhexyl acrylate, 380 parts Add 70.5 parts of the pre-emulsion for dripping composed of methyl methacrylate and 10 parts of acrylic acid, which is equivalent to 10% of the total amount of all polymerizable monomer components, to the flask, and slowly blow nitrogen into it while raising the temperature. To 80°C, 30 parts of a 5% aqueous solution of ammonium persulfate was added to initiate polymerization. Thereafter, the remaining pre-emulsion for dropping was uniformly added dropwise over 240 minutes. After the dropwise addition, keep at the same temperature for 180 minutes, then add 7 parts...

manufacture example A2

[0190] Except having superposed|polymerized using the emulsifier and monomer component shown in following Table 1, it carried out similarly to manufacture example A1, and obtained the (meth)acryloyl emulsion (A2). Various physical properties were evaluated in the same manner as in Production Example A1. The evaluation results are listed in Table 1.

manufacture example A3

[0192] 432 parts of deionized water were added to a flask equipped with a dropping funnel, a stirrer, a nitrogen gas introduction tube, a thermometer, and a reflux condenser. In the dropping funnel, prepare 25% aqueous solution of 72.5 parts of deionized water, 30 parts of emulsifier (for example: AQUARON HS-10 / manufactured by Daiichi Kogyo Pharmaceutical Co., Ltd.), 55 parts of 2-ethylhexyl acrylate, 185 parts of methyl The first stage of the pre-emulsion composed of methyl acrylate and 10 parts of acrylic acid, 70.5 parts of which is equivalent to 10% of the total amount of all polymerizable monomer components are added to the flask, nitrogen gas is slowly blown in, and the temperature is raised at the same time To 80°C, 30 parts of a 5% aqueous solution of ammonium persulfate was added to initiate polymerization. Thereafter, the remaining first stage pre-emulsion was evenly added dropwise over 120 minutes. After the dropwise addition, the same temperature was maintained ...

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Abstract

The invention provides an aqueous coating resin composition capable of forming a coating film which is improved in weather resistance, resistance to hot water whitening, frost damage resistance and blocking resistance without impairing excellent film performance and which exhibits excellent stain resistance over a long period just after application, particularly in the outdoors, especially, an aqueous coating resin composition which is favorably usable as a clear coating material requiring higher stain resistance and higher resistance to hot water whitening than those of pigment-containing coating materials. An aqueous coating resin composition which comprises a (meth)acrylic emulsion (A) obtained by emulsion polymerization and a water-soluble resin (B) as the essential components, characterized in that the (meth)acrylic emulsion (A) and the water-soluble resin (B) are ones capable for forming a crosslinked structure.

Description

technical field [0001] The invention relates to an aqueous resin composition for coatings. More specifically, the present invention relates to surface decorations that can be used for various materials such as metal, glass, tiles, concrete, exterior wall panels, extruded panels, plastics, etc.; suitable for bodies of automobiles, buildings, and civil structures Protection; particularly suitable for the coating water-based resin composition of the outer coating of kiln-based inorganic building materials, especially related to the transparent outer coating that can be suitably used as a higher level of stain resistance and warm water whitening resistance than pigment-containing coatings. A coating water-based resin composition for a coating material. Background technique [0002] The resin composition for coatings is used for surface decoration of various materials such as metal, glass, tiles, concrete, exterior wall panels, extruded panels, and plastics. In addition, the re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D5/02C09D139/04
CPCC09D133/14C09D5/02C08L39/04
Inventor 中尾贯治
Owner NIPPON SHOKUBAI CO LTD
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