JPH0477666B2 - - Google Patents
Info
- Publication number
- JPH0477666B2 JPH0477666B2 JP22477585A JP22477585A JPH0477666B2 JP H0477666 B2 JPH0477666 B2 JP H0477666B2 JP 22477585 A JP22477585 A JP 22477585A JP 22477585 A JP22477585 A JP 22477585A JP H0477666 B2 JPH0477666 B2 JP H0477666B2
- Authority
- JP
- Japan
- Prior art keywords
- melamine resin
- decorative board
- weight
- melamine
- resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 229920000877 Melamine resin Polymers 0.000 claims description 54
- 239000004640 Melamine resin Substances 0.000 claims description 38
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 15
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 claims description 11
- 229920000642 polymer Polymers 0.000 claims description 11
- JHPBZFOKBAGZBL-UHFFFAOYSA-N (3-hydroxy-2,2,4-trimethylpentyl) 2-methylprop-2-enoate Chemical compound CC(C)C(O)C(C)(C)COC(=O)C(C)=C JHPBZFOKBAGZBL-UHFFFAOYSA-N 0.000 claims description 9
- 150000007974 melamines Chemical class 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 8
- MBHRHUJRKGNOKX-UHFFFAOYSA-N [(4,6-diamino-1,3,5-triazin-2-yl)amino]methanol Chemical compound NC1=NC(N)=NC(NCO)=N1 MBHRHUJRKGNOKX-UHFFFAOYSA-N 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- 239000007795 chemical reaction product Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims 1
- 150000002148 esters Chemical class 0.000 claims 1
- 239000000123 paper Substances 0.000 description 19
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 10
- -1 acrylic ester Chemical class 0.000 description 7
- 239000010410 layer Substances 0.000 description 7
- 239000002344 surface layer Substances 0.000 description 7
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 6
- 239000012792 core layer Substances 0.000 description 6
- 239000011162 core material Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000000376 reactant Substances 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000004408 titanium dioxide Substances 0.000 description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 2
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 description 2
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000007334 copolymerization reaction Methods 0.000 description 2
- 238000007791 dehumidification Methods 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 239000002655 kraft paper Substances 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 description 1
- IVJISJACKSSFGE-UHFFFAOYSA-N formaldehyde;1,3,5-triazine-2,4,6-triamine Chemical compound O=C.NC1=NC(N)=NC(N)=N1 IVJISJACKSSFGE-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 150000002734 metacrylic acid derivatives Chemical class 0.000 description 1
- 229920003145 methacrylic acid copolymer Polymers 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 150000004702 methyl esters Chemical class 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Description
〔産業上の利用分野〕
本発明は、メラミン樹脂含浸紙を複数枚積層成
形して得られる化粧板に関するものである。
〔従来技術〕
メラミン樹脂化粧板は、テーブル、カウンター
等の表面材として従来より広く用いられている。
しかし、通常芯材層にフエノール樹脂含浸紙を使
用するため、切断加工した場合、切断面にフエノ
ール樹脂の色（褐色）が出てデザイン上好ましく
なかつた。そこで芯材層にもメラミン樹脂含浸紙
を用い、表面層と芯材層とを同一色にしたメラミ
ン樹脂化粧板が考案された。しかし。樹脂の基本
的性質として、メラミン樹脂はフエノール樹脂に
比べて吸、脱湿による寸法変化が大きい。従つて
全層にメラミン樹脂を用いて化粧板の寸法変化
は、表面層にのみメラミン樹脂を用いた通常のメ
ラミン樹脂化粧板の寸法変化に比べて大きい。全
層にメラミン樹脂を用いた化粧板を低湿度雰囲気
（30％R.H.程度）に長時間放置すると、化粧板は
縮もうとするが、化粧板に切り欠き或はくり抜き
穴があると、そのコーナー部に応力が集中し、そ
の応力が化粧板自体の機械的強度（引張り強さ）
を上回つた時にはクラツクが発生する恐れがあ
る。そのため、全層にメラミン樹脂を用いた化粧
板をテーブル、カウンター或は箱物家具等の表面
材として使用する場合、化粧板のクラツク、寸法
変化に伴う反り等の問題を解決する必要があつ
た。
〔発明の目的〕
本発明は、表面層、芯材層の全層にメラミン樹
脂を用いた化粧板において、メラミン樹脂を可塑
化変性することにより、化粧板の寸法変化を小さ
くし、従来避け得なかつたクラツク、反り等を防
止しようとするものである。
〔発明の構成〕
本発明は、メラミン樹脂含浸紙を複数枚積層成
形して得られる化粧板において、メラミン樹脂と
して(A)メラミン１モルに対して1.0〜3.0モルのア
ルデヒドを反応させた反応物100重量部に(B)アク
リル酸エステル及び／またはメタアクリル酸エス
テルの重量物10〜40重量部、(C)メチロールメラミ
ン樹脂及び／またはアルコール変性メラミン樹脂
１〜20重量部とを混合して得られる組成物を用い
ることを特徴とするメラミン樹脂化粧板である。
本発明に用いられるメラミンとアルデヒドとの
反応物において、アルデヒド／メラミンのモル比
は少なくとも1.0であり、アルデヒドの量がこの
値より少なくなるとメラミンとアルデヒドの反応
物が水に不溶性になる。またアルデヒド／メラミ
ンのモル比が3.0を越えると、樹脂の硬化が必要
以上に進み化粧板の可撓性が得られなくなる。好
ましくは、アルデヒド／メラミンのモル比は1.2
〜2.5であり、さらに好ましくは1.2〜2.0である。
アルデヒドとしては種々のものがあり、その混
合物も使用でき特に限定しないが、ホルムアルデ
ヒドが容易に入手でき、かつ安価であり好まし
い。
本発明において用いられるアクリル酸エステル
の重合物としては、例えばアクリル酸メチルエス
テル、アクリル酸エチルエステル、アクリル酸ブ
チルエステル等の重合物があり、メタアクリル酸
エステルの重合物としては、例えばメタアクリル
酸メチルエステル、メタアクリル酸エチルエステ
ル、メタアクリル酸ブチルエステル等の重合物が
あり、アクリル酸エステルまたはメタアクリル酸
エステルの重合物は単独ないし共重合させて用い
られる。
アクリル酸エステルまたはメタアクリル酸エス
テルの重合物の添加量は、メラミンとアルデヒド
の反応物100重量部に対して10重量部以下では充
分な可塑性が得られないし、40重量部以上である
と化粧板の層間接着性を損う。好ましくは、20〜
30重量部である。
本発明において用いられるメチロールメラミン
樹脂は、メラミンをホルムアルデヒド等でメチロ
ール化したものであり、またアルコール変性メラ
ミン樹脂は、メチロールメラミン樹脂をメタノー
ル、エタノール、ブタノール等でエーテル化した
ものである。
メチロールメラミン樹脂またはアルコール変性
メラミン樹脂はアクリル酸エステルまたはメタア
クリル酸エステル重合物の架橋剤として作用する
ものであり、アクリル酸エステルまたはメタアク
リル酸エステル重合物に対して10〜50重量％（メ
ラミンとアルデヒドの反応物100重量部に対して
１〜20重量部）添加される。添加量が10重量％よ
り少ないと、アクリル酸エステルまたはメタアク
リル酸エステル重合物が架橋不足になり可撓性が
劣り、また50重量％より多いと過剰のアルコール
変性メラミン樹脂が未反応のまま残つてしまう。
好ましくは、30〜40重量％である。
本発明に用いられる紙基材としては、特に限定
しないが、表面層用紙基材（表面紙）としては例
えば二酸化チタンその他の顔料を抄き込んだ化粧
紙が用いられる。また芯材層用紙基材（芯材紙）
としては例えば漂白したクラフトパルプまたは亜
硫酸パルプに着色剤を抄き込んだものが用いられ
る。着色剤を調整することにより、表面層と芯材
層とを同一色にすることができるが、特にこれに
限定されるものではない。
紙基材の上記の様にして得られた可塑化変性メ
ラミン樹脂を含浸し、該含浸紙を所要枚数積層
し、常法により加熱、加圧してメラミン樹脂化粧
板を得る。
〔発明の効果〕
本発明によるメラミン樹脂化粧板は、メラミン
樹脂がアクリル−メラミン樹脂で可塑化されてい
るため、硬化樹脂の歪が小さく、従つて湿度変化
等に伴う寸法変化が小さい。また、本発明に用い
るメラミン樹脂は、アクリル−メラミン樹脂が添
加、混合されているため、メラミン樹脂中にメチ
ロール基等の親水基が少なく、従つて化粧板は
吸、脱湿による寸法変化が小さい。そのため、全
層にメラミン樹脂を用いた化粧板において従来避
け得なかつたクラツク、反り等を防止できる。
以下実施例により本発明を説明する。
実施例
メラミン１モルに対してホルムアルデヒド2.0
モルを加え、水酸化ナトリウムでPH8.5〜9.0に調
整してから還流温度で40分間反応させ、メラミ
ン・ホルムアルデヒド反応物を得、メチルアルコ
ールを添加して固型分50％のメラミン樹脂とし
た。これにメタアクリル酸メチルエステルとアク
リル酸エチルエステルとの共重合物（共重合比
１／２、分子量12000）24重量部、メチロールメ
ラミン樹脂を酸性条件下でメタノールによりエー
テル化したメタノール変性メラミン樹脂８重量部
とを添加混合し、可塑化変性メラミン樹脂を得
た。これを白色表面紙（二酸化チタン含量42％、
米坪120ｇ／m2）に樹脂量55％、揮発分８％とな
るよう含浸、乾燥するとともに、漂白クラフトパ
ルプを原料とする白色芯材紙（二酸化チタン含量
８％、米坪190ｇ／m2）に樹脂量40％、揮発分７
％となるよう含浸、乾燥した。この芯材紙５枚の
上に表面紙１枚を重ね、表面紙の上にステンレス
鋼製当板をセツトし、熱圧、成形した。熱圧、成
形条件は、温度150℃、圧力100Kg／cm2、加熱圧締
時間40分、冷却圧締時間30分で厚さ1.2mmの表面
層、芯材層とも白色のメラミン樹脂化粧板を得
た。
比較例
実施例において、アクリル酸エステルとメタア
クリル酸エステルとの共重合物及びメタノール変
性メラミン樹脂とを混合しないメラミン樹脂を用
いて実施例と同様に表面紙及び芯材紙を得、これ
らを実施例と同一条件で熱圧、成形して厚さ1.2
mmの表面層、芯材層とも白色のメラミン樹脂化粧
板を得た。
以上の実施例及び比較例で得た化粧板の性能は
次の通りである。
[Industrial Application Field] The present invention relates to a decorative board obtained by laminating and molding a plurality of sheets of melamine resin-impregnated paper. [Prior Art] Melamine resin decorative boards have been widely used as surface materials for tables, counters, and the like.
However, since phenolic resin-impregnated paper is usually used for the core material layer, when it is cut, the color of the phenolic resin (brown) appears on the cut surface, which is not desirable in terms of design. Therefore, a melamine resin decorative board was devised in which melamine resin-impregnated paper was used for the core layer as well, and the surface layer and core layer were made the same color. but. As a basic property of resin, melamine resin undergoes larger dimensional changes due to absorption and dehumidification than phenolic resin. Therefore, the dimensional change of a decorative board using melamine resin in all layers is larger than the dimensional change of a normal melamine resin decorative board using melamine resin only in the surface layer. When a decorative board that uses melamine resin for all layers is left in a low humidity atmosphere (approximately 30% RH) for a long time, the decorative board tends to shrink, but if the decorative board has cutouts or hollow holes, the corners will shrink. Stress is concentrated in the area, and that stress increases the mechanical strength (tensile strength) of the decorative board itself.
There is a risk that a crack will occur when the value exceeds this value. Therefore, when using a decorative board made of melamine resin in all layers as a surface material for tables, counters, box furniture, etc., it was necessary to solve problems such as cracks in the decorative board and warping due to dimensional changes. . [Object of the Invention] The present invention aims to reduce the dimensional change of the decorative board by plasticizing and modifying the melamine resin in a decorative board using melamine resin in all layers, including the surface layer and the core layer, thereby eliminating the conventionally avoidable changes. This is intended to prevent cracks, warping, etc. [Structure of the Invention] The present invention provides a decorative board obtained by laminating and molding a plurality of sheets of melamine resin-impregnated paper, in which (A) 1 mole of melamine is reacted with 1.0 to 3.0 moles of aldehyde as the melamine resin. Obtained by mixing 100 parts by weight with (B) 10 to 40 parts by weight of acrylic ester and/or methacrylic ester, and (C) 1 to 20 parts by weight of methylol melamine resin and/or alcohol-modified melamine resin. This is a melamine resin decorative board characterized by using a composition made of In the melamine and aldehyde reactant used in the present invention, the aldehyde/melamine molar ratio is at least 1.0, and when the amount of aldehyde is less than this value, the melamine and aldehyde reactant becomes insoluble in water. Further, if the aldehyde/melamine molar ratio exceeds 3.0, the resin will be cured more than necessary, making it impossible to obtain the flexibility of the decorative board. Preferably the aldehyde/melamine molar ratio is 1.2
-2.5, more preferably 1.2-2.0. There are various aldehydes, and mixtures thereof can also be used without any particular limitation, but formaldehyde is preferred because it is easily available and inexpensive. Examples of polymers of acrylic esters used in the present invention include polymers of methyl acrylate, ethyl acrylate, butyl acrylate, and examples of polymers of methacrylates include, for example, methacrylic acid. There are polymers such as methyl ester, ethyl methacrylate, butyl methacrylate, and polymers of acrylic ester or methacrylic ester are used alone or in copolymerization. If the amount of the polymer of acrylic ester or methacrylic ester added is less than 10 parts by weight per 100 parts by weight of the melamine and aldehyde reactant, sufficient plasticity will not be obtained, and if it is more than 40 parts by weight, the decorative laminate will be damaged. impairs interlayer adhesion. Preferably 20~
It is 30 parts by weight. The methylolmelamine resin used in the present invention is obtained by methylolizing melamine with formaldehyde, etc., and the alcohol-modified melamine resin is obtained by etherifying the methylolmelamine resin with methanol, ethanol, butanol, etc. Methylol melamine resin or alcohol-modified melamine resin acts as a cross-linking agent for acrylic ester or methacrylic ester polymers, and contains 10 to 50% by weight of acrylic ester or methacrylic ester polymers (melamine and methacrylic ester polymers). (1 to 20 parts by weight) per 100 parts by weight of the aldehyde reactant. If the amount added is less than 10% by weight, the acrylic ester or methacrylic ester polymer will be insufficiently crosslinked, resulting in poor flexibility, and if it is more than 50% by weight, excess alcohol-modified melamine resin will remain unreacted. I get tired.
Preferably it is 30-40% by weight. The paper base material used in the present invention is not particularly limited, but as the surface layer paper base material (surface paper), for example, decorative paper containing titanium dioxide or other pigments is used. Also, core material layer paper base material (core material paper)
For example, bleached kraft pulp or sulfite pulp with a coloring agent added thereto can be used. By adjusting the colorant, the surface layer and the core layer can be made the same color, but the color is not particularly limited thereto. A paper base material is impregnated with the plasticized modified melamine resin obtained as described above, a required number of sheets of the impregnated paper are laminated, and heated and pressurized by a conventional method to obtain a melamine resin decorative board. [Effects of the Invention] In the melamine resin decorative board according to the present invention, since the melamine resin is plasticized with an acrylic-melamine resin, the distortion of the cured resin is small, and therefore the dimensional change due to changes in humidity, etc. is small. In addition, since the melamine resin used in the present invention is mixed with acrylic-melamine resin, there are few hydrophilic groups such as methylol groups in the melamine resin, and therefore the decorative board has little dimensional change due to absorption and dehumidification. . Therefore, it is possible to prevent cracks, warping, etc. that were conventionally unavoidable in decorative boards using melamine resin in all layers. The present invention will be explained below with reference to Examples. Example 2.0 formaldehyde per 1 mole of melamine
After adjusting the pH to 8.5 to 9.0 with sodium hydroxide, the mixture was reacted at reflux temperature for 40 minutes to obtain a melamine-formaldehyde reaction product, and methyl alcohol was added to obtain a melamine resin with a solid content of 50%. . To this, 24 parts by weight of a copolymer of methacrylic acid methyl ester and acrylic acid ethyl ester (copolymerization ratio 1/2, molecular weight 12000), 8 parts of methanol-modified melamine resin obtained by etherifying methylol melamine resin with methanol under acidic conditions. Parts by weight were added and mixed to obtain a plasticized modified melamine resin. This is white surface paper (titanium dioxide content 42%,
120 g/m 2 ) is impregnated with a resin content of 55% and volatile content 8% and dried, and white core paper made from bleached kraft pulp (titanium dioxide content 8%, 190 g/m 2 ) ) with a resin content of 40% and a volatile content of 7.
% and dried. One sheet of surface paper was placed on top of these five sheets of core paper, and a stainless steel backing plate was set on top of the surface paper, followed by hot pressing and molding. The hot pressing and molding conditions were a temperature of 150°C, a pressure of 100 kg/cm 2 , a heating pressing time of 40 minutes, and a cooling pressing time of 30 minutes.A white melamine resin decorative board with a thickness of 1.2 mm was made for both the surface layer and the core layer. Obtained. Comparative Example In the example, a surface paper and a core paper were obtained in the same manner as in the example using a melamine resin that was not mixed with a copolymer of acrylic ester and methacrylic ester and a methanol-modified melamine resin, and these were carried out. Heat pressed and molded under the same conditions as the example to a thickness of 1.2
A white melamine resin decorative board was obtained for both the surface layer and the core layer. The performance of the decorative boards obtained in the above Examples and Comparative Examples is as follows.
【表】
酢ビ系接着剤を用いて常法により15ｍ／ｍ合
板の両面に化粧板を貼り合わせる。
中央部及び隅にくり抜き及び切り込み加工を
する。
周辺部で鉄枠でビス留めする。
40℃、30％R.H.の恒温恒湿室中に168時間放
置し、クラツク発生の有無を観察する。
実施例で得た化粧板は、寸法変化率が小さく、
クラツクが発生せず、反りも小さいものであつ
た。[Table] Attach decorative boards to both sides of 15m/m plywood using a conventional method using vinyl acetate adhesive. Hollow out and cut in the center and corners. Fasten the iron frame with screws around the periphery. Leave it in a constant temperature and humidity room at 40℃ and 30%RH for 168 hours and observe whether cracks occur. The decorative board obtained in the example had a small dimensional change rate,
No cracks occurred and the warpage was small.
Claims (1)
られる化粧板において、メラミン樹脂として(A)メ
ラミン１モルに対して1.0〜3.0モルのアルデヒド
を反応させた反応物100重量部に(B)アクリル酸エ
ステル及び／またはメタアクリル酸エステルの重
合物10〜40重量部、(C)メチロールメラミン樹脂及
び／またはアルコール変性メラミン樹脂１〜20重
量部とを混合して得られる組成物を用いることを
特徴とするメラミン樹脂化粧板。1. In a decorative board obtained by laminating and molding multiple sheets of melamine resin-impregnated paper, 100 parts by weight of a reaction product obtained by reacting 1.0 to 3.0 moles of aldehyde with (A) 1 mole of melamine as the melamine resin, and (B) acrylic. A composition obtained by mixing 10 to 40 parts by weight of a polymer of acid ester and/or methacrylic ester and 1 to 20 parts by weight of (C) methylolmelamine resin and/or alcohol-modified melamine resin is used. Melamine resin decorative board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22477585A JPS6285938A (en) | 1985-10-11 | 1985-10-11 | Melamine-resin decorative board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22477585A JPS6285938A (en) | 1985-10-11 | 1985-10-11 | Melamine-resin decorative board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6285938A JPS6285938A (en) | 1987-04-20 |
| JPH0477666B2 true JPH0477666B2 (en) | 1992-12-09 |
Family
ID=16819015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22477585A Granted JPS6285938A (en) | 1985-10-11 | 1985-10-11 | Melamine-resin decorative board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6285938A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02145628A (en) * | 1988-11-25 | 1990-06-05 | Aica Kogyo Co Ltd | Melamine resin decorative sheet |
| JP4620200B2 (en) * | 1999-11-10 | 2011-01-26 | 大日本印刷株式会社 | Cosmetic sheet and cosmetic material |
| DE10301901A1 (en) * | 2003-01-17 | 2004-07-29 | Basf Ag | Aqueous solutions for coating three dimensional cellulosic substrates, used in e.g. the furniture industry, containing a melamine-formaldehyde (MF) condensate, an etherified MF condensate and a polymer dispersion |
| JP5678461B2 (en) * | 2010-04-08 | 2015-03-04 | 住友ベークライト株式会社 | Decorative plate and method of manufacturing the decorative plate |
-
1985
- 1985-10-11 JP JP22477585A patent/JPS6285938A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6285938A (en) | 1987-04-20 |
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