JP2782506B2 - Interior interior wall material with excellent stain resistance, anti-glare properties, and projection properties - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to stain resistance, projection properties, and the like suitable for classrooms, conference rooms, office walls, and partition walls.
The present invention relates to an interior wall material having a writing board function with excellent anti-glare properties.

[0002]

2. Description of the Related Art Conventional classrooms, meeting rooms, and offices are designed mainly for the balance of the interior of the entire building, and fixed classrooms such as blackboards and white boards are installed in classrooms. A blackboard, a white board or a mobile type is generally used. Also, in the case of projection, except for the dedicated room,
It is common to bring in a projection screen.

[0003]

That is, a blackboard, a white board, a projection screen, or the like is not installed in a classroom, a conference room, or an office, and a classroom, a conference, or the like is not used without a movable blackboard, a white board, a projection screen, or the like. The purpose is to use the walls of rooms and offices as they are as white boards and projection screens.

[0004]

That is, the present invention relates to tetrahydrophthalic acid, trimethylolpropane or pentaerythritol containing two or more (meth) acryloyl groups in one molecule and having a (meth) acryloyl group equivalent of 500 or less. An oligo (meth) acrylate obtained by esterifying three components of (meth) acrylic acid as a first component, which contains two or more methacryloyl groups in one molecule and has a methacryloyl group equivalent of 121 or less. One kind of polyhydric alcohol methacrylate selected from glycol dimethacrylate, diethylene glycol dimethacrylate and trimethylolpropane trimethacrylate is used as the second component, and the mixing ratio of the first component and the second component is the first component / the second component. = 1 / 0.5-1 / 2 (weight ratio) and this The total amount to 100 parts by weight of the third volume as a component 6.5 × 10 ⁴ μm ³ or less of the glass powder 1-4
A coating material is added to an object to be coated by adding 0 to 10 parts by weight of aluminum powder and / or stainless steel powder having a radius of 1 to 50 μm as a fourth component, and the oxygen concentration is 1%.
In the following atmosphere, in a coating layer cured by electron beam irradiation, the coating layer is a metal plate, a hard board,
Particle board, wood board such as wood, asbestos board,
An interior wall material with a lighting board function that is formed on any of inorganic plates such as rock wool plates and gypsum plates and plastic plates and has excellent stain resistance, projection properties and anti-glare properties.

Alternatively, the present invention provides: A: 90 to 10 parts by weight of a polyester (meth) acrylate containing two or more (meth) acryloyl groups in one molecule and having a (meth) acryloyl group equivalent of 500 or less; 90 to 10 parts by weight of a polyhydric alcohol (meth) acrylate containing at least two (meth) acryloyl groups and having a (meth) acryloyl group equivalent of 150 or less,
And C: 0.5 to 20 parts by weight of a silica extender having an oil absorption of 150 g / 100 g or more, D: 1 to 20 parts by weight of a polymer having a molecular weight of 5000 or more, based on 100 parts by weight of the mixture of the components A and B; E: Glass powder 1 to 40 having a volume of 6.5 × 10 ⁴ μm ³ or less
F: coating with aluminum powder having a radius of 1 to 50 μm and / or stainless powder in an amount of 1 to 20 parts by weight as an essential component to 100 parts by weight of A, B, C, D and E. A coating layer formed by applying the coating material and curing it by electron beam irradiation in an inert gas having an oxygen concentration of 1% or less, wherein the coating layer is formed of a metal plate, hard board, particle board, wood, or the like. Indoor interior with a lighting board function that is excellent in pollution resistance, projection properties, and anti-glare properties formed by forming any of inorganic boards such as wood board, asbestos board, rock wool board, gypsum board, and plastic board It is wall material. In the present invention, the interior wall material refers to a wall material used for a room wall and a partition wall.

[0006]

The coating film used in the present invention exhibits excellent antiglare and projection properties, and can be easily erased with an eraser even if a character or figure is written with a whiteboard marker.

[0007] Other stain resistance is determined by applying a conventional test method such as magic ink, curry, mustard, lipstick, crayon, colored pencil, ink, whiskey, or other daily commodities, or a substance commonly used in stain resistance tests. After leaving for a while, the traces can be erased with a chemical such as benzine, alcohol, water and other contaminants or a cloth or gauze. The surface hardness of the coating film, which is a measure of the difficulty of scratching, is 9H or more in pencil hardness.

As described above, the interior wall material of the present invention has excellent projection properties, stain resistance, antiglare properties, and high hardness.
The interior wall material may be stretched over the entire wall, or may be stretched only at an appropriate position as a screen at the time of projection, and another interior board may be stretched at other portions.

When such an interior wall material is used, the wall is left as it is, without a screen or a white plate, and it can be used as it is in a conference room, a classroom, an office or the like, and education and meetings can be conducted in a free style, and efficiency is improved. In addition, since it is excellent in stain resistance and hardness, it is suitable for walls of kitchens, bath rooms, and restrooms.

[0010]

【Example】

Example 1 A. Tetrahydrophthalic acid, trimethylolpropane,
Oligomers having a condensation molar ratio of acrylic acid of about 1: 2: 4 (acryloyl group equivalent: about 155) C. Trimethylolpropane trimethacrylate (acryloyl group equivalent: about 110) The copolymerization molar ratio of ethyl acrylate, methacrylmethyl, hydroxyethyl methacrylate and acrylic acid is 7
A. 0: 24: 3: 3 acrylic copolymer (number-average molecular weight: about 20,000) Glass fine powder ("GB731 made by Toshiba Barotini"
E) Silica extender pigment ("Syloid 308" manufactured by Fuji Devison Chemical, oil absorption 170/100 g) F: Titanium white

The weight ratio of A, B, C, D, E, F and iron yellow (yellow iron oxide) is 17: 17: 4.0: 10.
A system consisting of 0: 4.0: 40.2: 2.7,
10% of a mixed solvent of butyl acetate / xylene = 2/2/1
(Vs. the former) In addition, paint was used. Using a curtain flow coater (manufactured by Robel & Burclay Co., West Germany), this paint system is applied to an electrogalvanized steel sheet (sheet thickness 0.5 mm) and a stainless steel sheet (sheet thickness 0.8 mm) to a dry coating thickness of 30 μm. Painted like so.

The coated plate is heated at a temperature of 72 ° C. with hot air of 100 ° C.
The solvent was scattered at a temperature of about 50 ° C. (in a furnace for about 50 seconds) and then cured with an electron beam to obtain a member for an interior wall. The curing conditions were a voltage of 300 kV, a current of 160 mA / cm, a dose of 3 Mrad, and an irradiation oxygen concentration of 150 ppm.

(1) Projection properties When projected color light was applied, the colors were reproduced vividly, and the projection properties were so excellent that they could not be distinguished from the dedicated projection screen at a glance. (2) Stain resistance Even when characters or figures were written on this coated plate with a marker for whiteboard manufactured by Pilot Corporation, it could be easily erased. Further, as another stain resistance test, magic ink (red and black), lipstick, nail polish and the like were applied and left for one day, and then wiped off with ethanol, leaving no trace at all. (3) Others Hardness 9H, gloss 55, sharpness PGD meter less than 0.1, luminous reflectance 80 or more

Example 2 Except for iron yellow from Example 1, a paint system containing 3% (vs. the former) of metal powder (manufactured by Toyo Aluminum, MG1000, center particle diameter 27 μ) was used under the same conditions as before. A partition member was created. The performance after curing was almost the same as that of Example 1.

Example 3 A: Tetrahydrophthalic acid, trimethylolpropane,
Oligomer having an acrylic acid condensation molar ratio of about 1: 2: 4 (acryloyl group equivalent: about 155) B: trimethylolpropane trimethacrylate (acryloyl group equivalent: about 110) C: glass fine powder (“GB731 manufactured by Toshiba Barotini”)
M "Central particle diameter 18 .mu.) D: Titanium white The weight ratio of A, B, C, D and iron yellow is 17: 17: 1.
To a system consisting of 0.0: 40.2: 2.7, a mixed solvent of anone / butyl acetate / xylene = 2/2/1 (5% (vs. the former)) was added to prepare a paint. This paint system was applied to an electrogalvanized steel sheet (sheet thickness 0.5 mm) and a stainless steel sheet (sheet thickness 0.8 mm) using a roll coater.

The coated plate is heated with hot air of 100 ° C. to a thickness of 72 mm.
C. (in a furnace for about 50 seconds), the solvent was scattered and then cured by an electron beam to obtain an interior wall member. The curing conditions were a voltage of 300 kV, a current of 160 mA / cm, a dose of 3 Mrad, and an irradiation oxygen concentration of 150 ppm.

(1) Projection Properties When projected color light was applied, the colors were reproduced vividly, and the projection properties were so high that they could not be distinguished from the dedicated projection screen at a glance. (2) Stain resistance Even when characters or figures were written on this coated plate with a marker for whiteboard manufactured by Pilot Corporation, it could be easily erased. Further, as another stain resistance test, magic ink (red and black), lipstick, nail polish and the like were applied and left for one day, and then wiped off with ethanol, leaving no trace at all. (3) Others Hardness 9H, gloss 65, sharpness PGD meter less than 0.1, luminous reflectance 80 or more.

[0018]

By using the interior wall material of the present invention, it can be used as it is as a projection screen and a white board, and can be immediately used as a classroom or a conference room. Further, if a large room is partitioned by a partition using an interior wall material, it can be used immediately in a conference room or the like without a projection screen and a white board, and is efficient. In addition, it can be easily used as a wall material in kitchens and bathrooms because dirt is easily removed.

Claims (2)

(57) [Claims] (1) a (meth) acryloyl group in one molecule;
And the (meth) acryloyl group equivalent is 500
The first component is an oligo (meth) acrylate obtained by esterifying the following three components of tetrahydrophthalic acid, trimethylolpropane or pentaerythritol, and (meth) acrylic acid, and two or more methacryloyl groups in one molecule. Containing, and an ethylene glycol dimethacrylate having a methacryloyl group equivalent of 121 or less,
One kind of polyhydric alcohol methacrylate selected from diethylene glycol dimethacrylate and trimethylolpropane trimethacrylate is used as the second component,
The mixing ratio of the component and the second component is as follows: first component / second component = 1 /
0.5 to 1/2 (weight ratio), and their total amount is 100
1 to 40 parts by weight of glass powder having a volume of 6.5 × 10 ⁴ μm ³ or less as a ^third component, and a radius of 1 to 4 as a fourth component.
50μ of aluminum powder and / or stainless steel powder
20 parts by weight of a coating material is applied to an object to be coated, and the coating material is cured by electron beam irradiation in an atmosphere having an oxygen concentration of 1% or less. Excellent in stain resistance, projection and anti-glare properties when formed on any of inorganic boards such as wood board, asbestos board, rock wool board, gypsum board, and plastic board, hard board, particle board, wood etc. Interior wall materials with a writing board function. 2. A: One molecule contains two or more (meth) acryloyl groups and a (meth) acryloyl group equivalent of 5
Polyester (meth) acrylate 90-1 or less
0 parts by weight, B: 90 to 10 parts by weight of a polyhydric alcohol (meth) acrylate containing two or more (meth) acryloyl groups in a molecule and having a (meth) acryloyl group equivalent of 150 or less,
And C: 0.5 to 20 parts by weight of a silica extender having an oil absorption of 150 g / 100 g or more, D: 1 to 20 parts by weight of a polymer having a molecular weight of 5000 or more, based on 100 parts by weight of the mixture of the components A and B; E: Glass powder 1 to 40 having a volume of 6.5 × 10 ⁴ μm ³ or less
F: coating with aluminum powder having a radius of 1 to 50 μm and / or stainless powder in an amount of 1 to 20 parts by weight as an essential component to 100 parts by weight of A, B, C, D and E. A coating layer formed by applying the coating material and curing it by electron beam irradiation in an inert gas having an oxygen concentration of 1% or less, wherein the coating layer is formed of a metal plate, hard board, particle board, wood, or the like. Interior interior walls with a lighting board function that is formed on any of inorganic boards such as wood boards, asbestos boards, rock wool boards, plaster boards, and plastic boards, and has excellent anti-contamination, projection and anti-glare properties Wood.