JPH04134329U - Interior wall materials and partitions with excellent stain resistance and anti-glare properties - Google Patents

Abstract

(57) [Summary] [Purpose] In schools, offices, conference rooms, etc., fixed and portable white boards were installed for writing, etc., but a method that does not require the installation of these, that is, writing without dazzling. Obtain functional interior wall materials and partitions. [Structure] Paints made of limited oligo(meth)acrylates, polyhydric alcohol(meth)acrylates, or systems in which polymers and silica-based extender pigments are added, and glass powder are added to metal plates and inorganic materials. Interior wall materials and partitions that are non-dazzling and have a lighting function obtained by a manufacturing method in which they are coated on boards, wood boards, or plastic boards and cured by electron beam irradiation.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention has the function of a non-dazzling writing board suitable for classrooms and conference rooms. This relates to interior wall materials or partitions.

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.

0003

[Problem that the idea aims to solve]

In other words, do not install blackboards, whiteboards, etc. in classrooms or conference rooms, or use mobile blackboards, whiteboards, etc. You can use the walls of classrooms, conference rooms, and offices as white boards without glare. The porpose is to do.

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 esterification, and ethylene glycol dimethacrylate, diethylene glycol dimethacrylate, triethylene glycol dimethacrylate, which contains two or more methacryloyl groups in one molecule and has a methacryloyl group equivalent of 12 to 1 or less. The second component is one type of polyhydric alcohol methacrylate selected from methylolpropane trimethacrylate, the third component is glass powder with a volume of 6.5 × 10 ⁴ μm ³ or less, and the first component and the second component are The ratio of the first component/second component = 1/0.5 to 1/2 (weight ratio), and the ratio of the mixture of the first component and the second component to the third component is the first component + the second component. / Third component = 100/1 to 100/40 (weight ratio) coating is applied to the object to be coated and cured by 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: in one molecule 90 to 10 parts by weight of a polyhydric alcohol (meth)acrylate containing two or more (meth)acryloyl 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: 0.5 to 20 parts by weight of a silica-based extender pigment with 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 5,000 or more, and 100 parts by weight of a mixture of components A, B, C, and D. E: A paint containing 1 to 40 parts by weight of glass powder with a volume of 6.5 x 10 ⁴ μm ³ or less as an essential ingredient is applied to the object to be coated, and this is applied in an atmosphere with an oxygen concentration of 1% or less. A manufacturing method for coating materials that are cured by electron beams, metal plates, hard boards, particle boards, wooden boards such as wood, inorganic boards such as asbestos boards, rock wool boards, gypsum boards, and plastic boards. This is an interior wall material and partition that is coated with anti-glare properties and has the function of a writing board.

[0005]

[Effect]

The paint film used in this invention has an uneven surface due to the addition of glass powder, so it cannot be exposed to light. It does not dazzle even if the line hits it and has excellent stain resistance, making it a great whiteboard marker. Characters and drawings written with a car can be easily erased with an eraser, and are resistant to stains and stains. As for gender, using the normal test method, we tested magic ink, curry, mustard, lipstick, and Crayon. Colored pencils, ink, whiskey, and other daily necessities, or stain resistance tests. Leave the substance used for 24 hours after application and remove benzene, alcohol, water, etc. Traces can be removed using chemicals that dissolve contaminants, cloth, gauze, etc.

[0006] The surface hardness of the paint film, which is a measure of scratch resistance, is 9H or higher on a pencil hardness, and it is dazzling. The gloss must be 70 or less.

[0007] As explained above, the interior material has a stain-resistant surface with high hardness and a beautiful appearance. . You can apply the above interior materials to the entire wall, or you can apply this wall material only to the areas within reach. Other interior materials may be used. In addition, only the wall board parts that are easily dirty are used as interior materials. may be used. When using such interior materials or partitions, leave them as they are. Can be used as a whiteboard, conference room, or classroom, and can be used for education and meetings in a free style. It is efficient and efficient. It also has high hardness, solvent resistance, and stain resistance, making it suitable for kitchens, bathrooms, and restrooms. There is.

[0008]

【Example】

Example 1 A. An oligomer in which the condensation molar ratio of phthalic acid, trimethylolpropane, and acrylic acid is approximately 1:2:4 (acryloyl group equivalent: approximately 155); B. Trimethylolpropane trimethacrylate (acryloyl group equivalent weight approximately 110), C. Silica-based extender pigment (Fuji Davison Chemical "Thyroid 308" oil absorption 1 70g/100g), D. An acrylic copolymer (number average molecular weight of about 20,000) consisting of ethyl acrylate, methyl methacrylate, hydroxyethyl methacrylate, and acrylic acid in a copolymerization molar ratio of 70:24:3:3; E. It was a spherical glass powder (spherical diameter 18 μm, volume 3×10 ³ μm ³ ), and the weight ratio of A, B, C, D, titanium white, and E was 18.8:18.8:1.8:4. 4:44 ． A paint was prepared by adding 30% (vs. the former) of xylene to a 2:10 system.

[0009] Apply this paint system using a curtain flow coater (effective cloth 60cm) to coat it with thermosetting epoxy. SUS304 stainless steel plate (1500 x 800 x 0.6 mm) so that the dry coating film was 25μ. This coated board was heated to a board temperature of 80°C (about 50 seconds in the oven) using hot air at 150°C. The solvent was splashed under the following conditions, and then it was cured with an electron beam. In this way, the interior wall member 1 was obtained.

0010 Curing conditions: voltage 300KV, current 25mA/60cm, dose 3Mrad, Oxygen concentration during irradiation: 150 ppm (in nitrogen stream) This cured coated plate was subjected to the coating film tests for stain resistance, hardness, etc. as described above. (stain resistance) Even if you write with a whiteboard marker made by Pilot Co., Ltd., the eraser will not work. I was able to completely erase it. Also magic ink (red, blue), curry, mustard, lipstick, Crayons, colored pencils, and ink were applied to the painted board, and 24 hours later, ethanol was soaked. When I wiped it with gauze, it was easily wiped off without leaving any traces. (Pencil hardness) 9H< (Gloss) 51 [JIS standard applied] In this way, the interior wall member 1 that is not dazzling and has the function of a writing board is Obtained.

Example 2 A. Oligoacrylate in which the condensation molar ratio of adipic acid, pentaerythritol, and acrylic acid is approximately 1:2:4 (acryloyl group equivalent: 122) B. diethylene glycol dimethacrylate (acryloyl group equivalent weight approximately 121), C. Silica-based extender pigment (Mizukashiru NP-8 manufactured by Mizusawa Chemical Industry, oil absorption 260g/100g), D. A polyester (molecular weight approximately 15,000) consisting of terephthalic acid, sebacic acid, and ethylene glycol in a condensation molar ratio of approximately 3:7:10; E. A paint was prepared using fibrous glass powder (diameter 13μ, average length 50μ, volume 6.7×10 ³ μm ³ ) and components A, B, C, D, and E under exactly the same conditions as in Example 1, and after painting. The partition member 2 was obtained by irradiating the painted plate with an electron beam. (Stain Resistance) The same test as in Example 1 was conducted, and the results were the same. (Pencil hardness) 9H< (Gloss) 65

0012 Example 3 A. Condensed molar ratio of tetrahydrophthalic acid, trimethylolpropane, and acrylic acid is approximately 1:2:4 (acryloyl group equivalent: approximately 155) and B and E of Example 1 were blended in the same proportions as in Example 1 to obtain a paint. Using this paint, an internal wall member 1 was obtained under the same conditions as in Example 1 (the coating method was roll coater). When a coating test was conducted on this member, the gloss was 69 and the example The same results as in Example 1 were obtained except that the test results were different from those in Example 1.

[0013]

[Effect of the idea]

If you use the interior wall material of this invention, you can immediately use it as a non-dazzling white board. It can be used as classrooms and conference rooms. Also, if you partition a large club room with this, you can immediately It is efficient and can be used in conference rooms, etc. even without a white board. Also, dirt can be removed easily 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 (2)

[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 third component is glass powder with a volume of 6.5 × 10 ⁴ μm ³ or less,
The ratio of the first component to the second component is 1st component/2nd component = 1/
0.5 to 1/2 (weight ratio), and the ratio of the mixture of the first component and the second component to the third component is first component + second component / third component = 100/1 to 100/40 ( A method for producing a coating material, in which a coating material having a weight ratio of meth)acryloyl group 2
or more, and the (meth)acryloyl group equivalent is 500
90 to 10 parts by weight of the following polyester (meth)acrylates, B: 90 to 90 parts by weight of polyhydric alcohol (meth)acrylates containing two or more (meth)acryloyl groups in one molecule and having a (meth)acryloyl group equivalent of 150 or less 10 parts by weight and 100 parts by weight of the mixture of components A and B, C: 0.5 to 20 parts by weight of a silica-based extender pigment with an oil absorption of 150 g/100 g or more, D: 1 to 20 parts by weight of a polymer with a molecular weight of 5000 or more. 20 parts by weight and 100 parts by weight of the mixture of components A, B, C, and D: E: volume is 6.5 x 10 ⁴
A paint containing 1 to 40 parts by weight of glass powder of μm ³ or less as an essential component is applied to the object to be coated, and this is coated with an oxygen concentration of 1%.
A method for manufacturing coating materials that is cured with electron beams in the following atmosphere: metal plates, hard boats, particle boards, wooden boards such as wood, inorganic boards such as asbestos boards, rock wool boards, gypsum boards, etc. An interior wall material made of painted plastic plate that has anti-glare properties and also functions as a writing board. 2. A partition having anti-glare properties and having the function of a writing board, which is formed of a member coated by the coating method according to claim 1.