JPH0514747B2 - - Google Patents
Info
- Publication number
- JPH0514747B2 JPH0514747B2 JP59279851A JP27985184A JPH0514747B2 JP H0514747 B2 JPH0514747 B2 JP H0514747B2 JP 59279851 A JP59279851 A JP 59279851A JP 27985184 A JP27985184 A JP 27985184A JP H0514747 B2 JPH0514747 B2 JP H0514747B2
- Authority
- JP
- Japan
- Prior art keywords
- adhesive
- parts
- plywood
- cmc
- viscosity
- 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 - Lifetime
Links
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 25
- 239000000853 adhesive Substances 0.000 claims description 25
- 230000001070 adhesive effect Effects 0.000 claims description 25
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 25
- 239000011120 plywood Substances 0.000 claims description 19
- 239000007864 aqueous solution Substances 0.000 claims description 14
- 229920001807 Urea-formaldehyde Polymers 0.000 claims description 7
- 238000006266 etherification reaction Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 229920000877 Melamine resin Polymers 0.000 claims description 4
- 229920003002 synthetic resin Polymers 0.000 claims description 4
- 239000000057 synthetic resin Substances 0.000 claims description 4
- 229910052783 alkali metal Inorganic materials 0.000 claims description 3
- -1 alkali metal salt Chemical class 0.000 claims description 3
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 3
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 3
- 229920001568 phenolic resin Polymers 0.000 claims description 3
- 239000005011 phenolic resin Substances 0.000 claims description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 2
- 239000004640 Melamine resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920006184 cellulose methylcellulose Polymers 0.000 description 22
- 238000012710 chemistry, manufacturing and control Methods 0.000 description 22
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 8
- 235000013312 flour Nutrition 0.000 description 5
- 239000002562 thickening agent Substances 0.000 description 5
- 241000209140 Triticum Species 0.000 description 4
- 235000021307 Triticum Nutrition 0.000 description 4
- 235000019270 ammonium chloride Nutrition 0.000 description 4
- 238000007731 hot pressing Methods 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- 239000008186 active pharmaceutical agent Substances 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- 244000215068 Acacia senegal Species 0.000 description 1
- 102000009027 Albumins Human genes 0.000 description 1
- 108010088751 Albumins Proteins 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 102000011632 Caseins Human genes 0.000 description 1
- 108010076119 Caseins Proteins 0.000 description 1
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 229920000084 Gum arabic Polymers 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 108010073771 Soybean Proteins Proteins 0.000 description 1
- 239000000205 acacia gum Substances 0.000 description 1
- 235000010489 acacia gum Nutrition 0.000 description 1
- 239000000783 alginic acid Substances 0.000 description 1
- 235000010443 alginic acid Nutrition 0.000 description 1
- 229920000615 alginic acid Polymers 0.000 description 1
- 229960001126 alginic acid Drugs 0.000 description 1
- 150000004781 alginic acids Chemical class 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 239000004067 bulking agent Substances 0.000 description 1
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 description 1
- 239000005018 casein Substances 0.000 description 1
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 1
- 235000021240 caseins Nutrition 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000011153 ceramic matrix composite Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- CDMADVZSLOHIFP-UHFFFAOYSA-N disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane;decahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].O1B([O-])OB2OB([O-])OB1O2 CDMADVZSLOHIFP-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 235000010299 hexamethylene tetramine Nutrition 0.000 description 1
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- TWNIBLMWSKIRAT-VFUOTHLCSA-N levoglucosan Chemical group O[C@@H]1[C@@H](O)[C@H](O)[C@H]2CO[C@@H]1O2 TWNIBLMWSKIRAT-VFUOTHLCSA-N 0.000 description 1
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 235000019710 soybean protein Nutrition 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、合板用接着剤の初期接着の改良を目
的とした合板用接着剤に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a plywood adhesive intended to improve the initial adhesion of the plywood adhesive.
（従来の技術）
尿素樹脂、メラミン樹脂、フエノール樹脂等の
合板接着剤においては、主体の合成樹脂のほかに
増量剤、架橋性触媒および増粘剤が併用される
が、併用する増粘剤としてカルボキシメチルセル
ロースを用いることは公知である（例えば、特開
昭55−90572号公報）。(Prior art) In plywood adhesives such as urea resins, melamine resins, and phenolic resins, fillers, crosslinking catalysts, and thickeners are used in addition to the main synthetic resin. The use of carboxymethylcellulose is known (for example, Japanese Patent Application Laid-Open No. 1983-90572).
（発明が解決しようとする問題点）
合板の製造においては、コールドプレス後の合
板の初期接着性の良否により、製品の生産性およ
び品質に大きな影響を与えることが知られてい
る。すなわち、初期接着の悪い合板はホツトプレ
ス作業の能率を著しく低下させ、また、ハガレ、
メクレ、ズレなどの不良発生の原因となる。しか
しながら、合板の初期接着の向上は非常に困難な
問題で、特に冬期および低温時の朝方など低温時
では、更に初期接着の不良が原因と考えられる不
良品の発生が大巾に増加する。又、初期接着不良
材と云われているメラピーおよびカポール等の南
洋材やシナ、ブラ等の国内材もも同様の問題を起
し、その解決策が望まれていた。(Problems to be Solved by the Invention) In the production of plywood, it is known that the productivity and quality of the product are greatly affected by the quality of the initial adhesion of the plywood after cold pressing. In other words, plywood with poor initial adhesion significantly reduces the efficiency of hot pressing work, and also causes peeling and
This may cause defects such as slippage and misalignment. However, improving the initial adhesion of plywood is a very difficult problem, and especially in winter and at low temperatures such as in the morning, the number of defective products that are thought to be caused by poor initial adhesion increases significantly. In addition, similar problems occur with South Sea woods such as Merapi and Kapol, which are said to have poor initial adhesion, and domestic materials such as China and Bura, and a solution to this problem has been desired.
（問題点を解決するための手段）
本発明者は、かかる難点を解決すべく鋭意研究
した結果、合板用接着剤中に増粘剤として特定の
CMCを用いることにより、合板の初期接着を著
しく向上することを見い出し、本発明を完成する
に到つた。(Means for Solving the Problems) As a result of intensive research to solve these problems, the present inventor found that a specific thickener used in plywood adhesives has been developed.
We have discovered that the initial adhesion of plywood can be significantly improved by using CMC, and have completed the present invention.
すなわち、本発明はエーテル化度が1.5以上の
カルボキシメチルセルロースのアルカリ金属塩
（以下CMCと略称する）を増粘剤として含有する
ことを特徴とする合板用接着剤である。 That is, the present invention is a plywood adhesive characterized by containing an alkali metal salt of carboxymethylcellulose (hereinafter abbreviated as CMC) having a degree of etherification of 1.5 or more as a thickener.
本発明の合板用接着剤は、尿素樹脂、尿素−ホ
ルマリン樹脂、メラミン樹脂、フエノール樹脂な
どの主体となる合成樹脂に増量剤、例えば小麦
粉、米粉など、および塩化アンモニウムなどの架
橋性触媒および本発明のCMCを水に完溶させた
ものを加え、グルーミキサーで混合撹拌して製造
する。 The adhesive for plywood of the present invention consists of a main synthetic resin such as urea resin, urea-formalin resin, melamine resin, or phenolic resin, an extender such as wheat flour or rice flour, and a crosslinking catalyst such as ammonium chloride, and the present invention. It is manufactured by adding completely dissolved CMC in water and mixing and stirring with a glue mixer.
接着剤の構成比は、通常重量部で合成樹脂100
部に対して、小麦粉その他の増量剤10〜50部、本
発明のCMC0.1〜3.0部、水10〜30部および塩化ア
ンモニウム0.1〜3.0部の割合で配合されるが、特
に、この範囲に限定されるものではなく、接着作
業性や接着後の物性に応じて適宜変えることので
きるものである。 The composition ratio of adhesive is usually 100 parts by weight of synthetic resin.
per part of wheat flour or other bulking agent, 0.1 to 3.0 parts of CMC of the present invention, 10 to 30 parts of water, and 0.1 to 3.0 parts of ammonium chloride. It is not limited, and can be changed as appropriate depending on adhesive workability and physical properties after adhesion.
さらに適量のウロトロピン、アンモニア水、メ
ラミン、ポリビニルアルコール、アラビアゴム、
アルギン酸、メチルセルロース、ヒドロキシエチ
ルセルロースス、パラフイン等のゲル化調整剤、
増粘剤、耐水剤を併用しても差支えない。また、
大豆蛋白、カゼイン、アルブミン、ゼラチン等を
添加することにより、本発明の目的をより効果的
に果すことも可能である。 In addition, appropriate amounts of urotropin, aqueous ammonia, melamine, polyvinyl alcohol, gum arabic,
Gelation regulators such as alginic acid, methylcellulose, hydroxyethylcellulose, paraffin, etc.
There is no problem in using a thickener and a waterproofing agent together. Also,
By adding soybean protein, casein, albumin, gelatin, etc., the objects of the present invention can be more effectively achieved.
本発明に用いるCMCは、セルロースの無水グ
ルコース単位当りのカルボキシメチル基による平
均置換度で表わされるエーテル化度（DS）が1.5
以上のものである。DSが1.5以上の高置換度CMC
は、これまで造りにくいこともあつて、あまり知
られていなかつた。近年になり特開昭58−45201
号、特開昭58−176202号公報等に記載されている
ような効率のよい多段法による製造方法が開発さ
れて工業的に造られるようになつたものである。
DSが1.5以下の従来の市販CMCでは十分な初期接
着性の向上が得られない。 The CMC used in the present invention has a degree of etherification (DS) of 1.5, which is expressed as the average degree of substitution by carboxymethyl groups per anhydroglucose unit of cellulose.
That's all. Highly substituted CMC with DS of 1.5 or more
Until now, it was not well known, partly because it was difficult to make. In recent years, Japanese Patent Application Publication No. 58-45201
An efficient multi-stage manufacturing method was developed, as described in Japanese Patent Application Laid-Open No. 176202/1983, and industrial production began.
Conventional commercially available CMCs with a DS of 1.5 or less cannot sufficiently improve initial adhesion.
本発明のCMCの粘度は、１％水溶液の粘度
（BL型粘度計、60rpm、25℃）が90〜9000cpsの
範囲のものが好ましい。 The CMC of the present invention preferably has a viscosity of 1% aqueous solution (BL viscometer, 60 rpm, 25°C) in the range of 90 to 9000 cps.
これより低粘度のCMCでは十分な増粘効果が
得られず、9000cpsを超える高粘度のものでは作
業性が低下し、合板接着剤用の増粘剤として不適
である。 CMC with a viscosity lower than this does not have a sufficient thickening effect, and one with a high viscosity exceeding 9000 cps reduces workability and is unsuitable as a thickener for plywood adhesives.
さらに、本発明のCMCはナトリウム塩、カリ
ウム塩、リチウム塩などのアルカリ金属塩のいず
れでもよいが、工業的に製造されているナトリウ
ム塩の使用が望ましい。 Further, the CMC of the present invention may be any alkali metal salt such as sodium salt, potassium salt, or lithium salt, but it is preferable to use industrially produced sodium salt.
（実施例）
以下に実施例を示して本発明をさらに詳細に説
明するが、本発明はこれによつて限定されるもの
ではない。なお、実施例中の部は重量部を示す。(Example) The present invention will be explained in more detail by referring to Examples below, but the present invention is not limited thereto. Note that parts in the examples indicate parts by weight.
実施例 １
エーテル化度が2.1で、１％水溶液の粘度（BL
型粘度計、60rpm、25℃、以下同じ）が370cpsの
CMC0.5部を、水20部に加えて完溶させ、CMC水
溶液をつくつた。尿素樹脂（Ｓ・C50％、粘度
150cps、25℃）100部に、このCMC水溶液を添加
し、グルーミキサーで均一に混合撹拌した後、小
麦粉30部と塩化アンモニウム１部を加えて更に混
合撹拌して、均一な接着剤とした。この時の接着
剤の粘度は65ポイズであつた。Example 1 The degree of etherification is 2.1 and the viscosity of a 1% aqueous solution (BL
type viscometer, 60 rpm, 25℃, the same below) is 370 cps.
0.5 part of CMC was added to 20 parts of water and completely dissolved to prepare a CMC aqueous solution. Urea resin (S/C50%, viscosity
This CMC aqueous solution was added to 100 parts (150 cps, 25°C), mixed and stirred uniformly with a glue mixer, and then 30 parts of wheat flour and 1 part of ammonium chloride were added and further mixed and stirred to obtain a uniform adhesive. The viscosity of the adhesive at this time was 65 poise.
この接着剤を含水率約15％のラワン材単板（30
cm×30cm×0.4cm）に、塗布量が28ｇ／尺2になる
ように両面に塗布し、上下からラワン材単板（30
cm×30cm×0.2cm）を３プライになるよう貼合せ
て合板とした。この合板をコールドプレス（10
Kg／cm2、15分間）実施後、更に常圧で10分間静置
してから単板の剥離状態を測定した。その結果、
30分経過しても、合板の剥離現象は全く認められ
ず、初期接着は極めて優れていることがわかつ
た。又本例の接着剤で合板サイズの大きい90cm×
180cmの板で同様の試験を実施したが、初期接着
は十分であり、更にホツトプレス作業も順調に遂
行できた。 Apply this adhesive to a lauan wood veneer with a moisture content of approximately 15% (30%
cm
cm x 30 cm x 0.2 cm) were laminated to form 3 plies to make plywood. This plywood is cold pressed (10
Kg/cm 2 for 15 minutes), the veneer was allowed to stand for 10 minutes at normal pressure, and then the state of peeling of the veneer was measured. the result,
Even after 30 minutes had passed, no peeling of the plywood was observed, indicating that the initial adhesion was extremely excellent. Also, use the adhesive in this example to create a large plywood size of 90 cm
A similar test was carried out on a 180 cm board, and the initial adhesion was sufficient, and the hot pressing work was also carried out smoothly.
実施例 ２
エーテル化度が2.6で、１％水溶液の粘度が
10cpsのCMC0.5部を、水20部に加え完溶させ、
CMC水溶液をつくつた。尿素樹脂（Ｓ・C50％、
粘度150cps、25℃）100部に、このCMC水溶液を
添加し、グルーミキサーで均一に混合撹拌した
後、小麦粉30部と塩化アンモニウム１部を加え
て、更に混合撹拌して均一な接着剤とした。この
接着剤の粘度は57ポイズであつた。Example 2 The degree of etherification is 2.6 and the viscosity of a 1% aqueous solution is
Add 0.5 parts of 10 cps CMC to 20 parts of water and dissolve completely.
I made a CMC aqueous solution. Urea resin (S/C50%,
Add this CMC aqueous solution to 100 parts (viscosity: 150 cps, 25°C), mix and stir evenly with a glue mixer, then add 30 parts of wheat flour and 1 part of ammonium chloride, and further mix and stir to form a uniform adhesive. . The viscosity of this adhesive was 57 poise.
この接着剤を含水率約20％のラワン材単板に実
施例１と同様に塗布し、剥離状態を測定した結
果、初期接着は30分経過後でも剥離は全く認めら
れず、初期接着は極めて優れていることがわかつ
た。また、本例の接着剤を用いて実施例１と同様
に90cm×180cmの合板でのホツトプレス作業を実
施したが、何ら支障はなかつた。 This adhesive was applied to a lauan wood veneer with a moisture content of approximately 20% in the same manner as in Example 1, and the peeling state was measured. I found it to be excellent. Furthermore, using the adhesive of this example, hot pressing was carried out on a plywood board measuring 90 cm x 180 cm in the same manner as in Example 1, but no problems occurred.
実施例 ３
エーテル化度が1.6で、１％水溶液の粘度が
3560cpsのCMC0.5部を、水20部に加えて完溶さ
せ、CMC水溶液をつくつた。尿素樹脂（Ｓ・
C50％、粘度150cps、25℃）100部に、このCMC
水溶液を添加し、実施例１と同様に均一な接着剤
インクを調合した。この接着剤の粘度は69ポイズ
であつた。Example 3 The degree of etherification is 1.6 and the viscosity of a 1% aqueous solution is
0.5 part of CMC of 3560 cps was added to 20 parts of water and completely dissolved to create a CMC aqueous solution. Urea resin (S・
C50%, viscosity 150cps, 25℃) 100 parts of this CMC
A uniform adhesive ink was prepared in the same manner as in Example 1 by adding an aqueous solution. The viscosity of this adhesive was 69 poise.
この接着剤を含水率約15％のラワン材単板に実
施例１と同様に塗布し、剥離状態を測定した結
果、初期接着は30分経過後に若干剥離が認められ
たが、支障のある程度ではなかつた。また、本例
の接着剤を用いて実施例１と同様に90cm×180cm
の合板でのホツトプレス作業を実施したが、何ら
支障はなかつた。 This adhesive was applied to a lauan wood veneer with a moisture content of approximately 15% in the same manner as in Example 1, and the peeling state was measured. As a result, the initial adhesion peeled off slightly after 30 minutes, but this did not cause any problems. Nakatsuta. In addition, using the adhesive of this example, a 90 cm × 180 cm
Hot pressing work was carried out on plywood, but there were no problems.
比較例 １
エーテル化度が0.65で、１％水溶液の粘度が
3980cpsのCMC0.5部を水20部に加えて完溶させ、
CMC水溶液をつくつた。Comparative example 1 The degree of etherification is 0.65 and the viscosity of a 1% aqueous solution is
Add 0.5 parts of CMC of 3980 cps to 20 parts of water and dissolve completely.
I made a CMC aqueous solution.
尿素樹脂（Ｓ・C50％、粘度150cps、25℃）
100部に、このCMC水溶液を添加し、実施例１と
同様に均一な接着剤を調合した。この接着剤の粘
度は71ポイズであつた。 Urea resin (S/C50%, viscosity 150cps, 25℃)
This CMC aqueous solution was added to 100 parts to prepare a uniform adhesive in the same manner as in Example 1. The viscosity of this adhesive was 71 poise.
この接着剤を含水率約15％のラワン材単板に実
施例１と同様に塗布し、剥離状態を測定した結
果、初期接着は30分経過後に全面剥離し、不良で
あつた。 This adhesive was applied to a lauan wood veneer with a moisture content of approximately 15% in the same manner as in Example 1, and the peeling condition was measured. As a result, the initial adhesion was found to be defective, with the entire surface peeling off after 30 minutes.
Claims (1)
樹脂、フエノール樹脂から選ばれた合成樹脂100
重量部を主体とする合板用接着剤に対し、エーテ
ル化度が1.5以上で、かつ、１％水溶液の粘度が
90〜9000cpsであるカルボキシメチルセルロース
のアルカリ金属塩0.1〜3.0重量部を水10〜30重量
部に完溶させたものを配合することを特徴とする
合板用接着剤。1 100 synthetic resins selected from urea resin, urea-formalin resin, melamine resin, and phenolic resin
The degree of etherification is 1.5 or more and the viscosity of a 1% aqueous solution is
An adhesive for plywood, characterized in that it contains 0.1 to 3.0 parts by weight of an alkali metal salt of carboxymethyl cellulose having a concentration of 90 to 9000 cps completely dissolved in 10 to 30 parts by weight of water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27985184A JPS61157567A (en) | 1984-12-28 | 1984-12-28 | Adhesive for plywood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27985184A JPS61157567A (en) | 1984-12-28 | 1984-12-28 | Adhesive for plywood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61157567A JPS61157567A (en) | 1986-07-17 |
| JPH0514747B2 true JPH0514747B2 (en) | 1993-02-25 |
Family
ID=17616820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27985184A Granted JPS61157567A (en) | 1984-12-28 | 1984-12-28 | Adhesive for plywood |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61157567A (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1095801C (en) | 1998-01-29 | 2002-12-11 | 日铁溶接工业株式会社 | Welding wire package material |
| CN102391805B (en) * | 2011-07-18 | 2013-09-04 | 广西大学 | Modified urea-formaldehyde resin adhesive for concrete formwork and production method of adhesive |
| CN102977825A (en) * | 2011-09-05 | 2013-03-20 | 安徽华森木业有限公司 | Glue used for sheet materials |
| CN102585742B (en) * | 2012-02-20 | 2013-10-30 | 常州大学 | Urea-formaldehyde resin adhesive for artificial board and preparation method |
| CN102898986A (en) * | 2012-09-25 | 2013-01-30 | 苏州汾湖电梯有限公司 | Melamine-modified urea-formaldehyde glue and preparation method thereof |
| CN104650786B (en) * | 2013-11-18 | 2017-04-19 | 辽宁华胤木业有限公司 | urea-formaldehyde resin adhesive |
| WO2016022389A1 (en) * | 2014-08-06 | 2016-02-11 | Alcotec Wire Corporation | Floating feed assist unit for the payoff of bulk packaged welding wire |
| CN104830258B (en) * | 2014-11-28 | 2017-09-29 | 广西丰林木业集团股份有限公司 | High anti-wet fiber plate sticks agent with modified urea-formaldehyde resin glue |
| CN104762040B (en) * | 2015-03-26 | 2017-03-15 | 北京林业大学 | A kind of Low Toxicity Urea-Formaldehyde Resin Adhesive and preparation method thereof |
| CN104762043B (en) * | 2015-03-30 | 2017-01-25 | 广西宾阳县荣良新材料科技有限公司 | Production method of low-formaldehyde mildewproof urea-formaldehyde resin adhesive |
| CN105062392B (en) * | 2015-08-31 | 2017-07-11 | 江金文 | A kind of Lauxite flour composition and its preparation method and application |
| CN105969275B (en) * | 2016-05-24 | 2019-05-10 | 普洱林达木业有限责任公司 | A kind of environment protection type urea formaldehyde resin adhesive sticks the preparation method of agent |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5590572A (en) * | 1978-12-28 | 1980-07-09 | Daicel Chem Ind Ltd | Improving initial adhesion of veneer adhesive |
| JPS5845201A (en) * | 1981-09-10 | 1983-03-16 | Daicel Chem Ind Ltd | Preparation of carboxymethylcellulose ether alkali salt |
-
1984
- 1984-12-28 JP JP27985184A patent/JPS61157567A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5590572A (en) * | 1978-12-28 | 1980-07-09 | Daicel Chem Ind Ltd | Improving initial adhesion of veneer adhesive |
| JPS5845201A (en) * | 1981-09-10 | 1983-03-16 | Daicel Chem Ind Ltd | Preparation of carboxymethylcellulose ether alkali salt |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61157567A (en) | 1986-07-17 |
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