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Coating composition

A composition and coating technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problem of poor appearance of the coating film, and achieve the effects of excellent sagging resistance, excellent finished product appearance and water whitening resistance

Active Publication Date: 2021-10-01
KANSAI PAINT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when the object to be coated has a vertical plane, the wet coating film on the vertical plane sags, so that the appearance of the resulting coating film deteriorates

Method used

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  • Coating composition
  • Coating composition
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Examples

Experimental program
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Effect test

specific example

[0038] Specific examples include (meth) acrylate, ethyl acrylate, (meth) acrylate, (meth) acrylate, n-butyl ester, (meth) acrylate, (meth) acrylic acid Tert-butyl ester, (meth) acrylate 2-ethylhexyl (meth) acrylate, oxyteglut ester, (meth) acrylate, stearogate, alcoholic acrylate, isosteanoate ( The name of the trade name, manufactured by Osaka Organic Chemical Industry, Ltd. (Meth) acrylate, (meth) acrylate, tetraalkyl ester, (meth) acrylate, (meth) acrylic acid ring Esters, (meth) acrylate, and the like.

[0039] (3) Aromatic vinyl monomer

[0040] Specific examples include styrene, α-methylstyrene, vinyl toluene, and the like.

[0041] When the aromatic vinyl monomer is used as a constituent component, the glass transition temperature of the resulting resin is increased, and a hydrophobic coating film having a high refractive index can be obtained. Thereby, the effect of improving the refined appearance of the finished product can be obtained due to increased gloss of the coati...

Embodiment

[0280] The following Reference Production Examples, Examples and Comparative Examples of the present invention is described in more detail below. However, the present invention is not limited thereto. In each example, unless otherwise indicated, parts and percentages are expressed on a mass basis, and the film thickness is the thickness of the cured coating film.

[0281] Made of hydroxyl hydroxyl acrylic resin (A1-1-1)

manufacture example 1

[0283] 27 parts of Swasol 1000 (trade name, produced by Cosmo Oil Co., Ltd. Manufactured, an aromatic organic solvent) and 5 parts of propylene glycol monomethyl ether acetate was placed equipped with a thermometer, thermostat, stirrer, reflux condenser , a nitrogen gas inlet tube and a dropping funnel the reaction vessel. The mixture was stirred while nitrogen gas was blown into the reaction vessel at 150 ℃. Comprising 20 parts of styrene, 32.5 parts of 2-hydroxypropyl acrylate, 46.5 parts isobutyl methacrylate, 1.0 parts of acrylic acid and 1.5 parts of di-t-amyl peroxide (polymerization initiator) monomer The mixture was added dropwise at a constant rate thereto over 4 hours. The resulting mixture was aged for 1 hour at 150 deg.] C, cooled and further diluted by adding 34 parts of butyl acetate to obtain a solid concentration of the acrylic resin (A1-1-1) was 60% by mass of the hydroxyl group-containing. Hydroxyl group-containing acrylic resin (A1-1-1) obtained had 140mg KOH / ...

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Abstract

A coating composition which contains (A) a binder component, (B) a first viscosity regulating agent and (C) a second viscosity regulating agent, and which is configured such that: the first viscosity regulating agent (B) is a nonaqueous dispersion resin (b); the second viscosity regulating agent (C) contains a reaction product of (c1) a polyisocyanate compound, (c2) a primary monoamine that has a number average molecular weight of 300 or less and (c3) a polyether amine that has two or more amino groups, while having a number average molecular weight of 1,000 or more but less than 6,000; and the blending ratio of the polyether amine (c3) that has two or more amino groups, while having a number average molecular weight of 1,000 or more but less than 6,000 is within the range of 10-30% by mass based on the total amount of the components (c1)-(c3).

Description

Technical field [0001] The present invention relates to a coating composition. Background technique [0002] In order to impart excellent appearance and properties to the coatings, it is typically formed to form a coating film on the coated film by painting the coating composition to the coated film to form a wet coating film. [0003] However, when the coating has a vertical plane, the wet coating film flows on the vertical plane such that the appearance of the obtained coating film is deteriorated. In order to solve this problem, the coating composition containing a rheological control agent (viscous modifier) ​​having a flow control capability has been studied. [0004] For example, PTL 1 discloses a coating composition comprising an adhesive component and a rheological control agent; and the rheological control agent used: a polyisocyanate compound, a number of mono-molecular weight of 300 or more molecular weight, and has greater than 300 and less than 6000 average molecular...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D201/00C09D201/06C09D7/44
CPCC09D7/44C09D201/06C08G18/285C08G18/5024C08G18/73C08G18/6229C08G18/4063C09D175/08C09D5/00C08L75/02C09D7/65C09D7/63C09D133/066C09D133/14
Inventor 中水正人
Owner KANSAI PAINT CO LTD