JPH0471113B2 - - Google Patents
Info
- Publication number
- JPH0471113B2 JPH0471113B2 JP58136088A JP13608883A JPH0471113B2 JP H0471113 B2 JPH0471113 B2 JP H0471113B2 JP 58136088 A JP58136088 A JP 58136088A JP 13608883 A JP13608883 A JP 13608883A JP H0471113 B2 JPH0471113 B2 JP H0471113B2
- Authority
- JP
- Japan
- Prior art keywords
- component
- resin
- curing
- contact
- acid
- 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
- 239000000853 adhesive Substances 0.000 claims description 29
- 230000001070 adhesive effect Effects 0.000 claims description 29
- 229920005989 resin Polymers 0.000 claims description 25
- 239000011347 resin Substances 0.000 claims description 25
- 150000007522 mineralic acids Chemical class 0.000 claims description 11
- 150000007524 organic acids Chemical class 0.000 claims description 11
- 230000002378 acidificating effect Effects 0.000 claims description 10
- 229920003180 amino resin Polymers 0.000 claims description 9
- -1 m-substituted phenols Chemical class 0.000 claims description 9
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 21
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 12
- 239000007788 liquid Substances 0.000 description 9
- 239000003795 chemical substances by application Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 6
- 239000002023 wood Substances 0.000 description 6
- 229920001807 Urea-formaldehyde Polymers 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229920000877 Melamine resin Polymers 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 230000032683 aging Effects 0.000 description 3
- XPFVYQJUAUNWIW-UHFFFAOYSA-N furfuryl alcohol Chemical compound OCC1=CC=CO1 XPFVYQJUAUNWIW-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- TUAMRELNJMMDMT-UHFFFAOYSA-N 3,5-xylenol Chemical compound CC1=CC(C)=CC(O)=C1 TUAMRELNJMMDMT-UHFFFAOYSA-N 0.000 description 2
- CWLKGDAVCFYWJK-UHFFFAOYSA-N 3-aminophenol Chemical compound NC1=CC=CC(O)=C1 CWLKGDAVCFYWJK-UHFFFAOYSA-N 0.000 description 2
- ASHGTJPOSUFTGB-UHFFFAOYSA-N 3-methoxyphenol Chemical compound COC1=CC=CC(O)=C1 ASHGTJPOSUFTGB-UHFFFAOYSA-N 0.000 description 2
- GZVHEAJQGPRDLQ-UHFFFAOYSA-N 6-phenyl-1,3,5-triazine-2,4-diamine Chemical compound NC1=NC(N)=NC(C=2C=CC=CC=2)=N1 GZVHEAJQGPRDLQ-UHFFFAOYSA-N 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 2
- 239000003929 acidic solution Substances 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 2
- RLSSMJSEOOYNOY-UHFFFAOYSA-N m-cresol Chemical compound CC1=CC=CC(O)=C1 RLSSMJSEOOYNOY-UHFFFAOYSA-N 0.000 description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- JZLWSRCQCPAUDP-UHFFFAOYSA-N 1,3,5-triazine-2,4,6-triamine;urea Chemical compound NC(N)=O.NC1=NC(N)=NC(N)=N1 JZLWSRCQCPAUDP-UHFFFAOYSA-N 0.000 description 1
- BGJSXRVXTHVRSN-UHFFFAOYSA-N 1,3,5-trioxane Chemical compound C1OCOCO1 BGJSXRVXTHVRSN-UHFFFAOYSA-N 0.000 description 1
- 229940018563 3-aminophenol Drugs 0.000 description 1
- 235000018185 Betula X alpestris Nutrition 0.000 description 1
- 235000018212 Betula X uliginosa Nutrition 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical group OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 229920006328 Styrofoam Polymers 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 238000007718 adhesive strength test Methods 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 description 1
- 229940092714 benzenesulfonic acid Drugs 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 239000008098 formaldehyde solution Substances 0.000 description 1
- 239000004312 hexamethylene tetramine Substances 0.000 description 1
- 235000010299 hexamethylene tetramine Nutrition 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000007774 longterm Effects 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
- LNOPIUAQISRISI-UHFFFAOYSA-N n'-hydroxy-2-propan-2-ylsulfonylethanimidamide Chemical compound CC(C)S(=O)(=O)CC(N)=NO LNOPIUAQISRISI-UHFFFAOYSA-N 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 229920002866 paraformaldehyde Polymers 0.000 description 1
- QSXXNJGKNYADBW-UHFFFAOYSA-N phenol;1,3,5-triazine-2,4,6-triamine;urea Chemical compound NC(N)=O.OC1=CC=CC=C1.NC1=NC(N)=NC(N)=N1 QSXXNJGKNYADBW-UHFFFAOYSA-N 0.000 description 1
- GUGLPELUECBSDK-UHFFFAOYSA-N phenol;urea Chemical compound NC(N)=O.OC1=CC=CC=C1 GUGLPELUECBSDK-UHFFFAOYSA-N 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000008261 styrofoam Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
Landscapes
- Adhesives Or Adhesive Processes (AREA)
Description
本発明は接触硬化型接着剤に関するものであ
る。
尿素、メラミンあるいはベンゾグアナミンなど
とホルムアルデヒドとの付加縮合反応により得ら
れる酸性硬化型アミノプラスト樹脂を主剤とし、
無機酸または有機酸の少なくとも１種を硬化剤と
して用い、被接着材の片面に硬化成分である主剤
を塗付し、もう一方の片面に非硬化成分である硬
化剤液を塗付後、圧着する事により被着材間で接
触硬化させる接触硬化型接着剤は、短時間圧締で
接着作業が完了するという利点があり、また、硬
化物が三次元網目状高分子を形成するために強固
な接着が行ない得ることから、例えば、木材加工
分野では、フローリングブロツクの集成、幅木材
の縦継ぎ、家具類のエツヂ取り付けなどに、また
包装材料分野においては、段ボールと発泡スチロ
ールの接着などに広く利用されている。
しかし、これらの接触硬化型接着剤は、硬化剤
液中に樹脂化する成分が無い為、硬化剤液を塗付
した被着材間の接着層の耐温水接着性または接着
耐久性が低いという欠点があり、その利点は認め
られながらも使用面で制約を受けており、この欠
点の改善が強く望まれている。
本発明者らは、従来から多用されている接触硬
化型接着剤について、その利点を損うことなく、
耐温水接着性および接着耐久性（耐老化性）を改
善することを目的に種々検討の結果、硬化剤とし
て用いられている無機酸または有機酸に、ｍ−置
換フエノール類を併用することにより目的が達成
されることを見出し、本発明を完成するに至つ
た。
すなわち、本発明は、酸性硬化型アミノプラス
ト樹脂を含有してなる成分Ａ）、および無機酸ま
たは有機酸とｍ−置換フエノール類を含有して、
PH１以下に調整された成分Ｂ）から成る二液非混
合型であることを特徴とする接触硬化型接着剤を
提供する。
本発明の接触硬化型接着剤によれば、酸性硬化
型アミノプラスト樹脂が無機酸または有機酸の存
在下に硬化して三次元網目状高分子を形成すると
共に、併用するｍ−置換フエノール類が無機酸ま
たは有機酸の存在下に酸性硬化型アミノプラスト
樹脂のメチロール基および、該アミノプラスト樹
脂に遊離のホルムアルデヒドが含有されている場
合にはその遊離ホルムアルデヒドと反応して三次
元網目状高分子を形成するために、従来の接触硬
化型接着剤の利点を損うことなく、耐温水接着性
および接着耐久性が一挙に改善されるのである。
本発明の接触硬化型接着剤において成分Ａ）と
して用いられる酸性硬化型アミノプラスト樹脂は
公知のいずれのものでもよく、ユリア樹脂、メラ
ミン樹脂、ベンゾグアナミン樹脂およびそれらの
共縮合樹脂などが例示される。これらのアミノプ
ラスト樹脂の中、ユリア樹脂、ユリアーメラミン
共縮合樹脂、ユリアーフエノール共縮合樹脂、ユ
リアーフエノール−メラミン共縮合樹脂が工業的
有利に使用され、とりわけ、木材接着剤用として
市販の樹脂、例えばユリア樹脂としてのインスタ
ーボンドＲ−101、ユリア−メラミン共縮合樹脂
としてのエスレジンSF−２（いずれも松栄化学社
製）などが有利に使用される。
これらの木材接着剤用として市販の樹脂には、
通常、遊離のホルムアルデヒドが含有されてい
る。本発明における成分Ａ）には遊離のホルムア
ルデヒドが含有されていてもよく、かかるホルム
アルデヒドとしては、ホルマリン、パラフオルム
アルデヒド、ヘキサメチレンテトラミン、トリオ
キサン、α−ポリオキシメチレンなどが例示され
る。このような遊離ホルムアルデヒドの含有量は
特に制限されるものではないが、ホルムアルデヒ
ド臭気による作業環境の悪化を考慮して、塩化ア
ンモニウム法による測定値がアミノプラスト樹脂
に対して約７重量％以下の量である事が望まし
い。
本発明の成分Ａ）には更に老化防止作用を有す
る、酢酸ビニル樹脂エマルジヨン、フルフリルア
ルコールなどを必要に応じて添加することができ
る。
本発明の成分Ａ）は、不揮発分が約40乃至80重
量％の水性樹脂液として用いる。
本発明の接触硬化型接着剤において成分Ｂ）と
して用いる無機酸および有機酸としては、塩酸、
リン酸、硝酸、酢酸、スルフアミン酸、パラトル
エンスルフオン酸、ベンゼンスルホン酸などが例
示され、これらの１種または２種以上が水溶液と
して用いられる。
本発明の成分Ｂ）として用いられるｍ−置換フ
エノールとしては、レゾルシノール、ｍ−アミノ
フエノール、ｍ−クレゾール、３，５−キシレノ
ール、ｍ−メトキシフエノールなどが例示され、
これらの１種または２種以上が用いられる。
これらのｍ−置換フエノール類の使用量は特に
制限されないが、上記した無機酸または有機酸に
対して0.5重量％以上で耐温水接着性の向上が顕
著となり、15重量％より多くなると成分Ｂ）の着
色あるいは分離などが生じ易く、長期保存性が低
下する傾向があるので好ましくない。通常、無機
酸または有機酸の水溶液に対して２乃至10重量％
である。
本発明の成分Ｂ）には更にポリビニルアルコー
ル、メチルセルロース、ポリアクリル酸などの増
粘剤、または必要により有機溶剤など、または通
常行なわれているような酢酸ビニル樹脂エマルジ
ヨンなどを添加することができる。
本発明の成分Ｂ）は無機酸または有機酸の少な
くとも１種の水溶液にｍ−置換フエノール類の少
なくとも１種を添加し、必要により増粘剤、有機
溶剤などを添加して調整されるが、予め増粘水溶
液を調整し、次いで無機酸または有機酸の少なく
とも１種、およびｍ−置換フエノール類の少なく
とも１種を添加して調整することもできる。
このようにして調整される酸性水溶液は、従来
の接触硬化型接着剤の硬化剤成分と同様にPH値を
１以下に調整する。PH値が１より高い場合は硬化
が遅くなり、接触硬化型接着剤の特性を損い、一
方PH値が過度に低い場合は被着材を汚染し硬化物
の老化を早めるので、通常、PH０乃至0.5に調整
される。
本発明において、成分Ａ）と成分Ｂ）との使用
割合は、通常の接触硬化型接着剤において行なわ
れている方法によつて決定することができ、例え
ば、セツトタイムを測定して適宜決定することが
できる。
本発明の接触硬化型接着剤は、従来使用されて
いる方法と同様に被着材間で成分Ａ）と成分Ｂ）
とを接触せしめ、例えば常温で１乃至15分間圧締
することにより接着を完了することができる。
以下、本発明を実施例により詳細に説明する。
例中、部とあるのは重量部を表わす。
尚、下記実施例において、成分Ａ）として、
「インスターボンドＲ−101A液」（接触硬化型ユ
リア樹脂接着剤、松栄化学社製、以下Ａ−１と略
称する。）「エスレジンSF−２」（ユリア−メラミ
ン共縮合樹脂木材接着剤、同上社製、以下Ａ−２
と略称する。）およびＡ−１に37重量％ホルムア
ルデヒド溶液を配合して得た樹脂液（以下Ａ−３
と略称する。）を用いた。
これらの樹脂液の物性値を第１表に示す
The present invention relates to contact curing adhesives. The main material is acidic curing aminoplast resin obtained by addition condensation reaction of urea, melamine or benzoguanamine with formaldehyde.
Using at least one type of inorganic acid or organic acid as a hardening agent, apply the main resin, which is a hardening component, to one side of the material to be adhered, and apply the hardening agent liquid, which is a non-hardening component, to the other side, and then press-bond. Contact-curing adhesives, which are cured by contact between adherends, have the advantage of being able to complete the bonding process in a short time, and are also strong because the cured product forms a three-dimensional network polymer. Because of its ability to form adhesive bonds, it is widely used in the wood processing field, for example, for assembling flooring blocks, vertically joining skirting boards, and attaching edges to furniture, and in the packaging material field, for bonding cardboard and Styrofoam. has been done. However, since these contact-curing adhesives do not have a component that converts into resin in the curing agent liquid, the hot water resistant adhesion or bonding durability of the adhesive layer between the adherends coated with the curing agent liquid is said to be low. There are drawbacks, and although the advantages are recognized, there are restrictions in terms of use, and improvement of these drawbacks is strongly desired. The present inventors have developed a method for contact-curing adhesives that have been widely used in the past, without sacrificing their advantages.
As a result of various studies aimed at improving hot water adhesiveness and adhesive durability (aging resistance), we found that by using m-substituted phenols in combination with the inorganic or organic acid used as a curing agent, the objective was achieved. The inventors have discovered that the following can be achieved, and have completed the present invention. That is, the present invention comprises component A) containing an acidic curable aminoplast resin, an inorganic acid or an organic acid, and m-substituted phenols,
Provided is a contact curing adhesive characterized in that it is a two-component non-mixable adhesive comprising component B) whose pH is adjusted to 1 or less. According to the contact curing adhesive of the present invention, the acidic curing aminoplast resin is cured in the presence of an inorganic acid or an organic acid to form a three-dimensional network polymer, and the m-substituted phenols used together are In the presence of an inorganic or organic acid, the methylol groups of the acidic curing aminoplast resin and, if the aminoplast resin contains free formaldehyde, react with the free formaldehyde to form a three-dimensional network polymer. As a result, hot water adhesion and adhesive durability are improved at once without sacrificing the advantages of conventional contact curing adhesives. The acidic curing aminoplast resin used as component A) in the contact curing adhesive of the present invention may be any known one, and examples thereof include urea resin, melamine resin, benzoguanamine resin, and cocondensation resins thereof. Among these aminoplast resins, urea resin, urea melamine cocondensation resin, urea phenol cocondensation resin, and urea phenol-melamine cocondensation resin are industrially advantageously used. Resins such as Instarbond R-101 as a urea resin and S-Resin SF-2 as a urea-melamine cocondensation resin (both manufactured by Shoei Kagaku Co., Ltd.) are advantageously used. Commercially available resins for these wood adhesives include:
Usually contains free formaldehyde. Component A) in the present invention may contain free formaldehyde, and examples of such formaldehyde include formalin, paraformaldehyde, hexamethylenetetramine, trioxane, and α-polyoxymethylene. The content of such free formaldehyde is not particularly limited, but in consideration of the deterioration of the working environment due to formaldehyde odor, the amount measured by the ammonium chloride method should be about 7% by weight or less based on the aminoplast resin. It is desirable that Component A) of the present invention may further contain vinyl acetate resin emulsion, furfuryl alcohol, etc., which have an anti-aging effect, as required. Component A) of the present invention is used as an aqueous resin liquid with a non-volatile content of about 40 to 80% by weight. The inorganic and organic acids used as component B) in the contact curing adhesive of the present invention include hydrochloric acid,
Examples include phosphoric acid, nitric acid, acetic acid, sulfamic acid, para-toluenesulfonic acid, and benzenesulfonic acid, and one or more of these may be used as an aqueous solution. Examples of the m-substituted phenol used as component B) of the present invention include resorcinol, m-aminophenol, m-cresol, 3,5-xylenol, m-methoxyphenol, and the like.
One or more of these may be used. The amount of these m-substituted phenols used is not particularly limited, but if it is 0.5% by weight or more relative to the above-mentioned inorganic or organic acid, the hot water resistant adhesiveness will be significantly improved, and if it is more than 15% by weight, component B) It is undesirable because it tends to cause coloring or separation, which tends to reduce long-term storage stability. Usually 2 to 10% by weight based on the aqueous solution of inorganic or organic acid.
It is. Component B) of the present invention may further contain a thickener such as polyvinyl alcohol, methyl cellulose, polyacrylic acid, an organic solvent if necessary, or a vinyl acetate resin emulsion as is commonly used. Component B) of the present invention is prepared by adding at least one m-substituted phenol to an aqueous solution of at least one inorganic acid or organic acid, and adding a thickener, an organic solvent, etc. as necessary. It is also possible to prepare a thickened aqueous solution in advance and then add at least one type of inorganic acid or organic acid and at least one type of m-substituted phenols. The acidic aqueous solution prepared in this way has a pH value of 1 or less, similar to the curing agent component of conventional contact curing adhesives. If the PH value is higher than 1, curing will be delayed and the properties of the contact-curing adhesive will be impaired, while if the PH value is too low, it will contaminate the adherend and accelerate the aging of the cured product, so it is usually It is adjusted from 0.5 to 0.5. In the present invention, the usage ratio of component A) and component B) can be determined by the method used for ordinary contact curing adhesives, for example, by measuring the set time and determining the ratio as appropriate. be able to. The contact curing adhesive of the present invention can be used between component A) and component B) between adherends in a manner similar to conventionally used methods.
The adhesion can be completed by bringing them into contact with each other and pressing for 1 to 15 minutes at room temperature, for example. Hereinafter, the present invention will be explained in detail with reference to Examples. In the examples, parts represent parts by weight. In addition, in the following examples, as component A),
"Instarbond R-101A liquid" (contact curing urea resin adhesive, manufactured by Shoei Chemical Co., Ltd., hereinafter referred to as A-1) "S-Resin SF-2" (urea-melamine co-condensed resin wood adhesive, same as above) Company-made, hereinafter A-2
It is abbreviated as. ) and A-1 with a 37% by weight formaldehyde solution (hereinafter referred to as A-3).
It is abbreviated as. ) was used. The physical properties of these resin liquids are shown in Table 1.
【表】
（各物性はJIS Ｋ−6801ユリア樹脂木材接着剤
試験方法に準じて測定した。）
実施例１〜３および比較例１〜２
Ａ−１、Ａ−２およびＡ−３を成分Ａ）とし、
1N塩酸100部にレゾルシノール６部を配合して得
た酸性液を成分Ｂ）として、夫々接触硬化型接着
剤を得た。
厚さ10mm、幅55mm、長さ200mm、含水率８重量
％の樺材を被着材とし、各成分Ａ）を被着材の片
面に200ｇ／m2の割合で塗付し、また他の被着材
の片面に成分Ｂ）を160ｇ／m2の割合で塗付した。
夫々の塗付面を合せ、常温で７Kg／の圧力で10分
間圧締して接着した。
一方成分Ａ）としてＡ−１を用い、成分Ｂ）と
して1N塩酸（比較例１）、及び市販のインスター
ボンドＲ−101B液（変性ビニル樹脂含有塩酸酸
性液、PH0.4以下、松栄化学社製、比較例２）を
用い、夫々上記と同様の方法で接着した。
これらの試験片を24時間養生後、JIS Ｋ−6852
5.3（接着剤の圧縮せん断接着強さ試験方法、耐温
水試験）に準じて接着力試験を行ない、第表に
示す結果を得た。[Table] (Each physical property was measured according to JIS K-6801 urea resin wood adhesive test method.) Examples 1 to 3 and Comparative Examples 1 to 2 A-1, A-2 and A-3 were mixed with component A )year,
An acidic solution obtained by blending 100 parts of 1N hydrochloric acid with 6 parts of resorcinol was used as component B) to obtain contact-curing adhesives. Birch wood with a thickness of 10 mm, a width of 55 mm, a length of 200 mm, and a moisture content of 8% by weight was used as the adherend, and each component A) was applied to one side of the adherend at a rate of 200 g/ m2 , and other Component B) was applied to one side of the adherend at a rate of 160 g/m 2 .
The coated surfaces of each were placed together and bonded by pressing at a pressure of 7 kg/10 minutes at room temperature. On the other hand, A-1 was used as component A), 1N hydrochloric acid (comparative example 1) was used as component B), and commercially available Instarbond R-101B solution (hydrochloric acid acidic solution containing modified vinyl resin, pH 0.4 or less, Shoei Chemical Co., Ltd. and Comparative Example 2), and bonded in the same manner as above. After curing these test pieces for 24 hours, JIS K-6852
An adhesion test was conducted according to 5.3 (compression shear adhesive strength test method for adhesives, hot water resistance test), and the results shown in Table 1 were obtained.
【表】
実施例 ４〜８
Ａ−１を成分Ａ）とし、第表に示す組成の酸
性液を成分Ｂ）として夫々接触硬化型接着剤を得
た。
実施例１〜３と同様の方法で接着を行ない第
表に示す結果を得た。[Table] Examples 4 to 8 Contact curing adhesives were obtained by using A-1 as component A) and using the acidic liquid having the composition shown in the table as component B). Adhesion was carried out in the same manner as in Examples 1 to 3, and the results shown in Table 1 were obtained.
【表】【table】
【表】
実施例 ９〜13
Ａ−１を成分Ａ）とし、第表に示す組成の酸
性液を成分Ｂ）として夫々接触硬化型接着剤を得
た。
実施例１〜３と同様の方法で接着を行い第表
に示す結果を得た。[Table] Examples 9 to 13 Contact curing adhesives were obtained by using A-1 as component A) and using the acidic liquid having the composition shown in the table as component B). Adhesion was carried out in the same manner as in Examples 1 to 3, and the results shown in Table 1 were obtained.
【表】
実施例14および比較例３
Ａ−１を成分Ａ）とし、1N−塩酸100部にレゾ
ルシノール６部を配合して得た酸性液を成分Ｂ）
として接触硬化型接着剤を得た。
一方、比較例としてＡ−１および1N−塩酸か
ら成る接触硬化型接着剤を得た。
被着材として厚さ30mm、幅75mm、長さ250mm、
含水率８〜９重量％のニレ材を用い、夫々の接着
剤で４プライの積層材を実施例１〜３の方法と同
様に作製した。
作製した試料の耐老化性試験として、寒熱繰返
し試験（60℃／２時間→−20℃／２時間→60℃／
２時間を１サイクルとした。）を行い、接着層の
剥離率を求めた。その結果は第表に示すとおり
である。[Table] Example 14 and Comparative Example 3 A-1 was used as component A), and an acidic liquid obtained by blending 6 parts of resorcinol with 100 parts of 1N hydrochloric acid was used as component B).
A contact curing adhesive was obtained. On the other hand, as a comparative example, a contact curing adhesive consisting of A-1 and 1N hydrochloric acid was obtained. The adherend material is 30mm thick, 75mm wide, 250mm long,
Using elm wood with a moisture content of 8 to 9% by weight, 4-ply laminates were produced using the respective adhesives in the same manner as in Examples 1 to 3. As an aging resistance test of the prepared sample, a cold/heat cyclic test (60℃/2 hours → -20℃/2 hours → 60℃/
One cycle was 2 hours. ) to determine the peeling rate of the adhesive layer. The results are shown in Table 1.
Claims (1)
る成分Ａ）、および無機酸または有機酸とｍ−置
換フエノール類を含有して、PH１以下に調整され
た成分Ｂ）から成る二液非混合型であることを特
徴とする接触硬化型接着剤。1 A two-part non-mixable type consisting of component A) containing an acidic curing aminoplast resin, and component B) containing an inorganic or organic acid and m-substituted phenols and adjusted to a pH of 1 or less. A contact curing adhesive characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13608883A JPS6028479A (en) | 1983-07-26 | 1983-07-26 | Contact curing-type adhesive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13608883A JPS6028479A (en) | 1983-07-26 | 1983-07-26 | Contact curing-type adhesive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6028479A JPS6028479A (en) | 1985-02-13 |
| JPH0471113B2 true JPH0471113B2 (en) | 1992-11-12 |
Family
ID=15166971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13608883A Granted JPS6028479A (en) | 1983-07-26 | 1983-07-26 | Contact curing-type adhesive |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6028479A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7235613B2 (en) | 2001-10-18 | 2007-06-26 | Akzo Nobel N.V. | Method of gluing wood based materials |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4948734A (en) * | 1972-09-11 | 1974-05-11 | ||
| JPS50109932A (en) * | 1974-02-07 | 1975-08-29 | ||
| JPS53117032A (en) * | 1977-03-23 | 1978-10-13 | Nagoya Yukagaku Kogyo Kk | Adhesive composition |
| JPS5520512A (en) * | 1978-07-28 | 1980-02-14 | Mitsubishi Heavy Ind Ltd | Binary/bcd conversion circuit of real variable |
| JPS5611977A (en) * | 1979-07-12 | 1981-02-05 | Sumitomo Bakelite Co Ltd | Aqueous adhesive suitable for wood |
-
1983
- 1983-07-26 JP JP13608883A patent/JPS6028479A/en active Granted
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4948734A (en) * | 1972-09-11 | 1974-05-11 | ||
| JPS50109932A (en) * | 1974-02-07 | 1975-08-29 | ||
| JPS53117032A (en) * | 1977-03-23 | 1978-10-13 | Nagoya Yukagaku Kogyo Kk | Adhesive composition |
| JPS5520512A (en) * | 1978-07-28 | 1980-02-14 | Mitsubishi Heavy Ind Ltd | Binary/bcd conversion circuit of real variable |
| JPS5611977A (en) * | 1979-07-12 | 1981-02-05 | Sumitomo Bakelite Co Ltd | Aqueous adhesive suitable for wood |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6028479A (en) | 1985-02-13 |
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