Propenoic acid resin film for wooden decoration and use for wooden decorative body

A technology of acrylic resin and acrylic resin, which is applied in the direction of wood layered products, chemical instruments and methods, layered products, etc., and can solve problems such as cost increase and environmental pollution

Inactive Publication Date: 2004-09-29
YAMAHA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there is a problem that such a conventional wooden decorative board uses a large amount of solvent during the coatin

Method used

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  • Propenoic acid resin film for wooden decoration and use for wooden decorative body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] As the methacrylic resin, resin pellets (glass transition temperature: 103° C.) obtained by a bulk polymerization method comprising a monomer composition of 97.8% of methyl methacrylate and 2.2% of methyl acrylate were used. As rubber particles, it can be produced according to the standard of Example 3 in Japanese Patent Publication No. 55-27576 (=USP 3793402), and a spherical three-layer structure is formed from the following three polymers, that is, the innermost layer is made of methyl methacrylate Cross-linked polymer polymerized with a small amount of allyl methacrylate, the middle layer is a soft elastic copolymer polymerized with butyl acrylate as the main component, styrene and a small amount of allyl methacrylate, and the outermost layer The layer is a rigid polymer polymerized by using a small amount of ethyl acrylate in methyl methacrylate, and the average particle diameter of the elastic copolymer layer used is 250 nm.

[0051] 70 parts of methacrylic resin ...

Embodiment 2

[0054] The composition of the rubber particles is basically the same as in Example 1, but the polymerization conditions are changed to a spherical three-layer structure with an average particle diameter of 140 nm. Others are the same as in Example 1, and a 250 μm thick acrylic resin film is made, and then the resin is used The film was processed in the same manner as in Example 1 to make a wooden decorative film and a wooden decorative molded body.

Embodiment 3

[0084] 1-Methoxy Dilute the polyfunctional urethane acrylate oligomer to a concentration of 25% and use it as a hard coating agent. A 25% concentration of hard coating agent was applied to the surface of the acrylic resin film of the wood decorative film obtained in Example 1 with a brush. After drying in an oven at 40°C for 10 minutes, use 400mJ / cm 2 intensity of ultraviolet light, and harden. According to JIS K5400, the obtained hard coating layer was measured for the pencil scratch value, and the pencil hardness was raised to 3H.

[0085] The acrylic resin film of the present invention is laminated with a wood film to form a wood decorative film, and the wood grain pattern of the wood film can be clearly observed. If the wood decorative film is arranged on the outermost surface of the acrylic tree film, a thermoplastic resin is pasted on one side of the wood film, and formed as a whole to form a wooden decorative molded body, the weather resistance, damage resistance, ch...

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Abstract

Provided is an acrylic resin film excellent in weather resistance, scratch resistance, chemical resistance and visibility of a wooden material and used for wooden decorative product exhibiting high designing property and to produce the wooden decorative product by using the resin film.The acrylic resin film 1 for woody decoration is composed of a virtually transparent and colorless acrylic resin obtained by dispersing rubber particles into a methacrylic resin and has >=50 [mu]m and <=500 [mu]m thickness. A wooden decorative molded product is obtained by laminating a wood film formed by slicing wood onto one surface of the acrylic resin film to form a woody decorative film and further laminating a thermoplastic resin to the side of the wood film. The wooden decorative molded product is advantageously produced by arranging the woody decorative film into an injection molding mold, injecting the molten thermoplastic resin from the side of the wood film and integrally laminating the woody decorative film to the uppermost surface of the molded product simultaneously with molding.

Description

technical field [0001] The present invention relates to an acrylic resin film used for a wood-like decorative body laminated with a wood film that is cut into thin slices and formed into a film. The present invention also relates to a wooden decorative film obtained by laminating such an acrylic resin film and the aforementioned wood film, a wooden decorative molded article whose surface is decorated with the water-based decorative film, and a method for producing the same. Background technique [0002] In recent years, as high-end furniture materials and high-end automotive interior materials, molded products with a wooden surface have been used more and more. However, since the outermost layer is formed of wooden materials, the surface is easily damaged and stained, so it is not suitable. Therefore, transparent coating is usually performed with transparent polyester resin to impart surface damage resistance and dirt adhesion resistance, and at the same time, form a highly ...

Claims

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Application Information

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IPC IPC(8): B32B21/08C08J5/12C08L33/00
Inventor 小山浩士佃阳介远藤和志
Owner YAMAHA CORP
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