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Coating composition and coated film obtained therewith, multilayer structure and multilayer structure manufacturing method

一种涂布组合物、多层结构体的技术，应用在对表面涂布液体的装置、涂层、化学仪器和方法等方向，能够解决耐热性评价局限等问题

Active Publication Date: 2016-01-13
MITSUBISHI CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, the heat resistance evaluation of this technology is limited to the condition of a temperature of 80°C
[0011] In terms of the heat resistance level based on these above-mentioned technologies, it is difficult to apply to components such as instrument panels of automobiles, building exterior walls, and outdoor display panels that are exposed to direct sunlight during use and become high in temperature, or cause heat generation. Applications requiring higher heat resistance, such as components such as

Method used

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  • Coating composition and coated film obtained therewith, multilayer structure and multilayer structure manufacturing method
  • Coating composition and coated film obtained therewith, multilayer structure and multilayer structure manufacturing method
  • Coating composition and coated film obtained therewith, multilayer structure and multilayer structure manufacturing method

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Embodiment

[0153] Hereinafter, although an Example is given and this invention is demonstrated more concretely, this invention is not limited to the following Example unless the summary is exceeded.

[0154] In addition, unless otherwise specified, "part" in an Example means a basis of weight.

Embodiment 1

[0167]

[0168] As the dispersion medium of the emulsion, water is used; as the dispersant, polyvinyl alcohol resin (saponification degree: 98.5 mol %; average polymerization degree 300; 1,2-diol structural unit content: 8 mol %); for the acrylic monomer forming the acrylic resin as the dispersoid, use butyl acrylate / methyl methacrylate=55 / 45 (weight ratio) of mixed monomers.

[0169] The polyvinyl alcohol resin (saponification degree: 98.5 mol %; average degree of polymerization 300; 1,2-diol structural unit content: 8 46.2 parts of mole %) were dissolved in 715 parts of water to prepare an aqueous solution. In addition, 700 parts of mixed monomers of butyl acrylate / methyl methacrylate=55 / 45 (weight ratio) as an acrylic monomer were prepared.

[0170] The above-mentioned aqueous solution was charged into a stainless steel reaction container equipped with a stirrer and a reflux condenser, and the temperature of the reaction container was kept at 80°C.

[0171] 70 parts of...

Embodiment 2

[0184] A coating composition and a film were prepared in the same manner as in Example 1, except that the compounding amount of the alumina fibrous fine particle sol in Example 1 was 15.08 parts by weight (corresponding to 0.71 parts by weight of the alumina component). , perform the same evaluation.

[0185] The total solid content in the coating composition was 39.2% by weight. In this coating composition, the solid content of the PVA-based resin in the coating composition was 5.4% by weight. In this coating composition, the compounding quantity of the metal oxide fibrous fine particle was 1.6 weight part with respect to 100 weight part of resin solid content in a coating composition.

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Abstract

The purpose of the present invention is to provide a coated film having a high level of heat resistance, and a coating composition for obtaining said coating. This coating composition contains (A) an emulsion having a polyvinyl alcohol resin as the dispersant, an acrylic resin as the dispersoid, and water as the dispersion medium, and (B) metal oxide fibrous particles, wherein the average major diameter of the metal oxide fibrous particles is 10-2500nm, and the average aspect ratio is 10-450.

Description

technical field [0001] The present invention relates to a coating composition containing metal oxide fibrous fine particles, a coating film obtained by using the same, a multilayer structure, and a method for producing a multilayer structure. Specifically, it relates to a coating film capable of obtaining a coating film excellent in heat resistance , a coating composition for a multilayer structure, and a method for producing the aforementioned multilayer structure. Background technique [0002] Acrylic resins are excellent in weather resistance, transparency, moldability, etc., and thus have been widely used in various interior and exterior materials, as well as surface protection coating agents for displays, outdoor display panels, and the like. In recent years, as the average temperature has risen, there has been a demand for a coating agent capable of obtaining a surface protective coating film that does not shrink due to heat and is more excellent in coloring heat resis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00B05D7/24B32B27/18C09D5/02C09D7/12C09D129/04
CPCC09D5/02C09D133/08C09D7/40C09D5/027C09D7/61C09D7/66C08F220/1804C08F220/14C08K3/22C08K2003/2227C09D129/04
Inventor 渋谷光夫桑田三沙
Owner MITSUBISHI CHEM CORP
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