JP2782504B2 - Interior interior wall material with excellent stain resistance and anti-glare properties - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interior wall material having a function of a dazzling writing board suitable for a classroom, a meeting room wall, and a partition wall.

[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.

[0003]

That is, a blackboard or a white board is not installed in a classroom or a conference room, and a wall of a classroom or a meeting room office is used as a white board without dazzling without using a movable blackboard or a white board. Intended for use.

[0004]

The present invention comprises two or more (meth) acryloyl groups in one molecule,
Oligo (meth) acrylate obtained by esterifying three components of tetrahydrophthalic acid, trimethylolpropane or pentaerythritol and (meth) acrylic acid having an acryloyl group equivalent of 500 or less is a first component, and methacryloyl in one molecule. Containing two or more groups,
In addition, one type of polyhydric alcohol methacrylate selected from ethylene glycol dimethacrylate, diethylene glycol dimethacrylate, and trimethylolpropane trimethacrylate having a methacryloyl group equivalent of 121 or less is used as the second component, and has a volume of 6.5 × 10 ^4. Glass powder of μm ³ or less is used as the third component, and the ratio of the first component and the second component is 1 / 0.5 to 1/2 (weight ratio) of the first component and the second component. The ratio of the mixture of the second component to the third component is the first component + the second component / the third component = 100/1 to 100/4
0 (weight ratio) is applied to an object to be coated, and the coating is formed by curing with an electron beam in an atmosphere having an oxygen concentration of 1% or less. Hardboard, particle board, wood board such as wood, asbestos board, rock wool board, inorganic board such as plaster board, formed on any of plastic board, is a lighting board excellent in stain resistance and anti-glare properties It is an interior interior wall material with functions.

Further, the present invention provides: A: 90 to 10 parts by weight of a polyester (meth) acrylate having at least two (meth) acryloyl groups in a 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 two or more (meth) acryloyl groups in one 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; And 100 parts by weight of a mixture of the components A, B, C and D. E: Glass powder 1 to 40 having a volume of 6.5 × 10 ⁴ μm ³ or less.
Parts by weight of a coating material, which is an essential component, is applied to an object to be coated, and this is cured by an electron beam in an atmosphere having an oxygen concentration of 1% or less. Lighting board with excellent pollution and anti-glare properties, formed on any of wooden boards such as boards, hard boards, particle boards, wood, asbestos boards, rock wool boards, inorganic boards such as plaster boards, and plastic boards It is an interior wall material with the function of. The interior wall material in the present invention is a wall material used for a room wall and a partition wall.

[0006]

The coating film used in the present invention has an uneven surface due to the addition of glass powder, so it does not dazzle even when exposed to light, and has excellent stain resistance. Can be easily erased with the eraser. For other stain resistance, apply a standard test method such as magic ink, curry, mustard, lipstick, crayon, colored pencil, ink, whiskey, other daily necessities, or leave for 24 hours after applying a substance commonly used in stain resistance tests. Then, traces can be erased with benzene, alcohol, water, other chemicals that dissolve contaminants, cloth, gauze, or the like.

[0007] The surface hardness of the coating film, which is a measure of the difficulty of scratching,
Pencil hardness is 9H or more, gloss is 70 because it is not dazzling
It is as follows.

[0008] As described above, the interior material of the present invention is excellent in the function of the writing board and the high hardness of the stain resistant surface and has a beautiful appearance. The interior wall material described above may be stretched over the entire wall, or the wall material may be stretched only at a position where the hand can reach, and other interior materials may be stretched. Alternatively, the interior material may be used only for the easily-dirty wall plate portion. When such an interior material is used for a room or a partition, it can be used as it is in a conference room or a classroom, and can be used for education and meetings in a free style, and is efficient. It is also suitable for kitchens, bath rooms, and restrooms because of its high hardness, solvent resistance, and contamination resistance.

[0009]

【Example】

Example 1 A. An oligomer having a condensation molar ratio of phthalic acid, trimethylolpropane, and acrylic acid of about 1: 2: 4 (acryloyl group equivalent: about 155); B. trimethylolpropane trimethacrylate (acryloyl group equivalent: about 110); D. silica-based extender (Fuji Devison Chemical “Siloid 308” oil absorption 170 g / 100 g); The copolymerization molar ratio of ethyl acrylate, methyl methacrylate, hydroxyethyl methacrylate, acrylic acid is 7
An acrylic copolymer (number average molecular weight: about 20,000) consisting of 0: 24: 3: 3; Spherical glass powder (sphere diameter 18μ, volume 3 × 10 ³ μ
m ³ ), and the weight ratio of A, B, C, D, titanium white and E is 18.8: 18.8: 1.8: 4.4: 44.
30% xylene (vs. the former) was added to the system consisting of 2:10 to obtain a paint.

[0010] This paint system is applied to a thermosetting epoxy primer with a curtain flow coater (effective cloth 60 cm).
SUS304 stainless steel plate (1500 × 8
(00 × 0.6 mm) so that the dry coating film had a thickness of 25 μm. The coated plate is heated at a temperature of 80 ° C. with hot air of 150 ° C.
(The furnace time was about 50 seconds), the solvent was scattered, and then cured by an electron beam. Thus, an interior wall member was obtained.

Curing conditions: voltage 300 KV, current 25 mA
/ 60cm, dose 3Mrad, irradiation oxygen concentration 150p
pm (in a nitrogen stream) The cured coated plate was subjected to the coating test described above for stain resistance, hardness, and the like. (Stain resistance) Even when writing with a whiteboard marker manufactured by Pilot Corporation, it was completely erased by the eraser. Magic ink (red, blue), curry, mustard,
Apply lipstick, crayons, colored pencils and ink to the painted plate, 24
After an hour, it was easily and without traces wiped with ethanol-soaked gauze. (Pencil hardness) 9H <(gloss) 51 [JIS standard applied] A member for an interior wall which is not dazzling and has the function of a writing board was thus obtained.

Embodiment 2 A. An oligoacrylate (acryloyl group equivalent: 122) having a condensation molar ratio of adipic acid, pentaerythritol, and acrylic acid of about 1: 2: 4; C. diethylene glycol dimethacrylate (acryloyl group equivalent: about 121), C.I. Silica extender (Mizukasil NP manufactured by Mizusawa Chemical Industries)
-8, oil absorption 260 g / 100 g); A polyester (molecular weight: about 15,000) having a condensation molar ratio of terephthalic acid, sebacic acid, and ethylene glycol of about 3: 7: 10; A fibrous glass powder (13 μm in diameter, 50 μm in average length, 6.7 × 10 ³ μm ^{3 in} volume), A, B, C, D, and E components were prepared under exactly the same conditions as in Example 1 to obtain a paint. The coated plate was irradiated with an electron beam to obtain a partition wall material. (Stain resistance) The same test as in Example 1 was conducted, but with the same results. (Pencil hardness) 9H <(Glossy) 65

Embodiment 3 A. Tetrahydrophthalic acid, trimethylolpropane,
An oligomer (acryloyl group equivalent: about 155) having a contraction molar ratio of acrylic acid of about 1: 2: 4 and B and E of Example 1
Was blended in the same ratio as in Example 1 to obtain a paint. Using this paint, a member for an inner wall was obtained under the same conditions as in Example 1 (the coating method was a roll coater). When a coating film test was performed on this member, the same results as in Example 1 were obtained except that the gloss was 69, which was different from the test result of Example 1.

[0014]

By using the interior wall material having the function of the writing board of the present invention, it can be used as it is as a white plate which is not dazzling and can be immediately used as a classroom or a meeting room.
Further, if the large room is partitioned by a partition using an interior wall material, it can be used in a conference room or the like without 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.

──────────────────────────────────────────────────続 き Continued on front page (51) Int.Cl. ⁶ Identification code FI E04B 2/74 541 E04B 2/74 541P

Claims (2)

(57) [Claims] 1. Three components of tetrahydrophthalic acid, trimethylolpropane or pentaerythritol, and (meth) acrylic acid, each 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 esterification of the above as a first component, ethylene glycol dimethacrylate containing two or more methacryloyl groups in one molecule and having a methacryloyl group equivalent of 121 or less;
One type of polyhydric alcohol methacrylate selected from diethylene glycol dimethacrylate and trimethylolpropane trimethacrylate as a second component, and glass powder having a volume of 6.5 × 10 ⁴ μm ³ or less as a third component,
The ratio of the first component to the second component is 1 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 as follows: first component + second component / third component = 100/1 to 100/40 ( (Weight ratio) is applied to an object to be coated, and this is cured by an electron beam in an atmosphere having an oxygen concentration of 1% or less. The function of a writing board with excellent stain resistance and anti-glare properties, formed on any of inorganic boards such as boards, particle boards, wood boards, asbestos boards, rock wool boards, gypsum boards, and plastic boards. Interior interior wall material with. 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 components A and B C: 0.5 to 20 parts by weight of silica-based 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 5,000 or more, and A, B, E: glass powder having a volume of 6.5 × 10 ⁴ μm ³ or less based on 100 parts by weight of the mixture of the components C and D
Parts by weight of a coating material, which is an essential component, is applied to an object to be coated, and this is cured by an electron beam in an atmosphere having an oxygen concentration of 1% or less. Lighting with excellent stain resistance and anti-glare properties, formed on any of wooden boards such as boards, hard boards, particle boards, and wood, asbestos boards, rock wool boards, inorganic boards such as plaster boards, and plastic boards. Interior wall material with board function.