JPH04134331U - Interior wall materials and partitions with excellent stain resistance, anti-glare, and projection properties - Google Patents

Abstract

(57) [Summary] [Purpose] Schools, offices, conference rooms, etc. used to install screens for projection and white boards for writing, but there is no need to install these, and it is possible to use a screen that does not dazzle. To obtain interior wall materials and partitions that have both the functions of white boards. [Structure] A paint consisting of a limited number of oligo(meth)acrylates, polyhydric alcohol(meth)acrylates, or systems in which polymers and silica-based extender pigments are added, as well as glass powder and metal powder. Interior wall materials and partitions with a non-dazzling projection screen and lighting function obtained by a manufacturing method in which metal plates, inorganic plates, wood plates, and plastic plates are coated and cured by electron beam irradiation.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to interior wall materials or partitions suitable for classrooms, conference rooms, and offices. It is.

0002

[Conventional technology]

Traditional classrooms, conference rooms, and offices are based on the balance of the interior of the rooms throughout the building. Fixed blackboards, whiteboards, etc. are installed in classrooms, and fixed blackboards and whiteboards are installed in conference rooms and offices. Generally, a blackboard, whiteboard, or mobile one is used. Also, in the case of projection, it is best to bring a projection screen to a room other than the one designated for it. Common.

0003

[Problem that the idea aims to solve]

This means installing blackboards, whiteboards, projection screens, etc. in classrooms, conference rooms, and offices. classrooms, conference rooms, etc. without using mobile blackboards, whiteboards, projection screens, etc. The walls of the office can be used as white boards and projection screens. With the goal.

0004

[Means to solve the problem]

In other words, the present invention uses three components: tetrahydrophthalic acid, trimethylolpropane or pentaerythritol, and (meth)acrylic acid, which contain two or more (meth)acryloyl groups in one molecule and have a (meth)acryloyl group equivalent of 500 or less. The first component is oligo(meth)acrylate obtained by esterifying ethylene glycol dimethacrylate, diethylene glycol dimethacrylate, which contains two or more methacryloyl groups in one molecule and has a methacryloyl group equivalent of 1 to 21 or less. The second component is one type of polyhydric alcohol methacrylate selected from trimethylolpropane trimethacrylate, and the blending ratio of the first component and the second component is first component/second component = 1/0.5 to 1. /2 (weight ratio) and a total of 100 parts by weight of these, 1 to 40 parts by weight of glass powder with a volume of 6.5 × 10 ⁴ μm ³ or less as a third component, and aluminum with a radius of 1 to 50 μm as a fourth component A method for producing a coating material by adding 1 to 20 parts by weight of powder and/or stainless steel powder, applying the mixture to the object to be coated, and curing it with an electron beam in an atmosphere with an oxygen concentration of 1% or less; or A: 90 to 10 parts by weight of polyester (meth)acrylate containing two or more (meth)acryloyl groups in one molecule and having a (meth)acryloyl group equivalent of 500 or less, B: (meth)acryloyl in one molecule 90 to 10 parts by weight of a polyhydric alcohol (meth)acrylate containing two or more groups and having a (meth)acryloyl group equivalent of 150 or less, and 100 parts by weight of a mixture of components A and B, C: oil absorption 0.5 to 20 parts by weight of silica-based extender pigment of 150g/100g or more, D: 1 to 20 parts by weight of polymer with a molecular weight of 5000 or more, E: 1 to 40 parts by weight of glass powder with a volume of 6.5 x 10 ⁴ μm ³ or less F: A paint containing 1 to 20 parts by weight of aluminum powder with a radius of 1 to 50 μm and/or stainless steel powder as essential ingredients is applied to the object to be coated, and this is applied to the object to be coated, and the paint is applied to the object to be coated, and the total amount of these 100 parts by weight is Metal plates, hard boards, particle boards, wood boards such as wood, asbestos boards, rock wool boards, gypsum boards, etc. are produced by manufacturing coating materials that are cured with electron beams in an inert gas of 1% or less. Interior wall materials and partitions made of painted inorganic or plastic plates with projection, anti-glare, and writing board functions.

[0005]

[Effect]

The paint film used in this invention has excellent projection performance and is suitable for whiteboards. Text and figures written with a card marker can be easily erased with an eraser.

[0006] Other types of stain resistance were also tested using regular test methods such as magic ink, curry, and color. lipstick, crayons, colored pencils, ink, whiskey, and other daily necessities or durable Substances commonly used in contamination tests are left to stand for 24 hours after application, and benzene, alcohol, etc. Traces can be removed using detergent, water, other chemicals that dissolve contaminants, cloth, gauze, etc. What can be erased. In addition, the paint film surface hardness, which is a measure of scratch resistance, is 9 on the pencil hardness scale. Must be H or higher and not dazzling.

[0007] As explained above, the interior material has excellent projection properties, stain resistance, and high hardness. This interior material can be stretched over the entire wall or used as a screen during projection. It may be applied only to appropriate positions, and other interior panels may be applied to other parts.

[0008] When using such interior materials, walls can be used as is, as a screen or white board, or as a meeting place. It can be used as it is in conference rooms, classrooms, offices, etc., and allows you to conduct education and meetings in a free style. Be efficient. It also has excellent stain resistance and hardness, making it suitable for kitchens, bathrooms, and restrooms. .

[0009]

【Example】

Example 1 A. Condensed moles of tetrahydrophthalic acid, trimethylolpropane, and acrylic acid Oligomer with a ratio of approximately 1:2:4 (acryloyl group equivalent: approximately 155) B. Trimethylolpropane trimethacrylate (acryloyl group equivalent: approx. 11 0) C. Ethyl acrylate, methyl methacrylate, hydroxyethyl methacrylate, Acrylic copolymer with a copolymerization molar ratio of acrylic acid of 70:24:3:3 ( Number average molecular weight approximately 20,000) D. Fine glass powder (“GB731M” made by Toshiba Ballotini, center particle size 18μ) E. Silica-based extender pigment (Fuji Davison Chemical “Syroid 308” oil absorption 1 70/100g) F: Titanium white

0010 The weight ratio of A, B, C, D, E, F and iron yellow is 17:17:4.0:10. In a system consisting of 0:4.0:40.2:2.7, anone/butyl acetate/xylene = A paint was prepared by adding 10% (vs. the former) of a 2/2/1 mixed solvent. Apply this paint system. -Electrolytic zinc using a Tenflow coater (manufactured by Robel & Buerkley, West Germany) Dry coating on plated steel plate (plate thickness 0.5mm) and stainless steel plate (plate thickness 0.8mm) It was coated to a thickness of 30μ.

[0011] This coated board was heated to a board temperature of 72°C (about 50 seconds in the oven) using hot air at 100°C. The solvent was splashed under the following conditions, and then cured with an electron beam to obtain interior wall member 1. . Curing conditions are voltage 300 kV, current 160 mA/cm, dose 3 Mrad, and oxygen concentration during irradiation 1. It was 50ppm.

0012 (1) Projectability When illuminated with projection color light, the colors are vividly reproduced, making it easy to tell from a dedicated projection screen at first glance. The projection properties were so excellent that no scratches were observed. (2) Stain resistance Write letters and diagrams on this painted board using a whiteboard marker made by Pilot Co., Ltd. could also be easily erased. Furthermore, as another stain resistance test, we used magic ink (red, black). ), apply lipstick, nail polish, etc., leave it for a day, and then wipe it off with ethanol to completely remove it. It left no trace. (3) Others Hardness 9H, gloss 55, sharpness less than 0.1 on PGD meter, luminous reflectance 80 or more

[0013] Example 2 Excluding iron yellow from Example 1, metal powder (Toyo Aluminum Co., Ltd., MG1000, medium Using a paint system with 3% (vs. Partition member 2 was created. The performance after curing was almost the same as in Example 1. .

[0014] Example 3 A: Condensed moles of tetrahydrophthalic acid, trimethylolpropane, and acrylic acid Oligomer with a ratio of approximately 1:2:4 (acryloyl group equivalent: approximately 155) B: Trimethylolpropane trimethacrylate (acryloyl group equivalent: approximately 11 0) C: Fine glass powder (“GB731M” manufactured by Toshiba Ballotini, center particle size 18μ) D: Titanium white The weight ratio of A, B, C, D and iron yellow is 17:17:10.0:40.2:2 ．． Add a mixed solvent of anone/butyl acetate/xylene = 2/2/1 to the system consisting of 7. % (compared to the former) and used as paint. This paint system is coated with electricity using a roll coater. Painted on galvanized steel plate (plate thickness 0.5mm) and stainless steel plate (plate thickness 0.8mm) did.

[0015] This coated board was heated to a thickness of 72°C (about 50 seconds in the oven) using hot air at 100°C. The interior wall member 1 was obtained by scattering the solvent under the following conditions and then curing with an electron beam. Ta. Curing conditions are voltage 300 kV, current 160 mA/cm, dose 3 Mrad, and oxygen concentration during irradiation 1. It was 50ppm.

[0016] (1) Projectability When illuminated with projection color light, the colors are vividly reproduced, making it easy to tell from a dedicated projection screen at first glance. The projection properties were so excellent that no scratches were observed. (2) Stain resistance Write letters and diagrams on this painted board using a whiteboard marker made by Pilot Co., Ltd. could also be easily erased. Furthermore, as another stain resistance test, we used magic ink (red, black). ), apply lipstick, nail polish, etc., leave it for a day, and then wipe it off with ethanol to completely remove it. It left no trace. (3) Others Hardness 9H, gloss 65, sharpness PGD meter less than 0.1, luminous reflectance 80 or more.

[0017]

[Effect of the idea]

If you use the interior wall material of this invention, it can be used as a projection screen or white board. It can be used immediately as a classroom or conference room. You can also use this to partition a large room. If you do so, you can immediately use it in a conference room, etc. without a projection screen or white board, making it more efficient. It is true. Also, dirt can be easily removed, so it can be used as interior wall material in kitchens and bathrooms.

[Brief explanation of drawings]

[Figure 1] Wall member according to the present invention

[Figure 2] Partition member according to the present invention

[Explanation of symbols]

1 Wall components 2 Partition members

Claims (1)

[Scope of utility model registration request] Claim 1: Two (meth)acryloyl groups in one molecule
or more, and the (meth)acryloyl group equivalent is 500
The first component is an oligo(meth)acrylate obtained by esterifying the following three components: tetrahydrophthalic acid, trimethylolpropane or pentaerythritol, and (meth)acrylic acid, and has two or more methacryloyl groups in one molecule. ethylene glycol dimethacrylate containing and having a methacryloyl group equivalent of 121 or less,
The second component is one type of polyhydric alcohol methacrylate selected from diethylene glycol dimethacrylate and trimethylolpropane trimethacrylate, and the first component is
The mixing ratio of the component and the second component is 1st component/2nd component = 1/
0.5 to 1/2 (weight ratio) and 1 to 40 parts by weight of glass powder with a volume of 6.5 × 10 ^{4 μm 3 or less as a third component to 100 parts by weight of these in total, and 1 to 40 parts by weight of glass powder with a volume of 6.5 × 10 4} μm ³ or less as a fourth component. 5
1 to 2 pieces of 0μ aluminum powder and/or stainless steel powder
0 parts by weight added to the object to be coated, and then cured by electron beam in an atmosphere with an oxygen concentration of 1% or less. ) 90 to 10 parts by weight of polyester (meth)acrylate containing two or more acryloyl groups and having a (meth)acryloyl group equivalent of 500 or less, B: containing two or more (meth)acryloyl groups in one molecule, and ( 90 to 10 parts by weight of polyhydric alcohol (meth)acrylate having a meth)acryloyl group equivalent of 150 or less, and a mixture of components A and B 1
00 parts by weight, C: oil absorption amount is 150g/100g
0.5 to 20 parts by weight of the above silica-based extender pigments, D: 1 to 20 parts by weight of a polymer with a molecular weight of 5,000 or more, E: 1 to 40 parts by weight of a glass powder with a volume of 6.5 x 10 ⁴ μm ³ or less, and these To the total amount of 100 parts by weight, F: radius is 1 to 50μ
aluminum powder and/or stainless steel powder from 1 to 20
Metal plates,
Wooden boards such as hardboard, particle board, and wood,
Inorganic boards such as asbestos boards, rock wool boards, and gypsum boards,
An interior wall material or partition made from a painted plastic plate that has projection, anti-glare, and writing board functions.