JPH05117629A - Resin composition - Google Patents
Resin compositionInfo
- Publication number
- JPH05117629A JPH05117629A JP3281266A JP28126691A JPH05117629A JP H05117629 A JPH05117629 A JP H05117629A JP 3281266 A JP3281266 A JP 3281266A JP 28126691 A JP28126691 A JP 28126691A JP H05117629 A JPH05117629 A JP H05117629A
- Authority
- JP
- Japan
- Prior art keywords
- resin composition
- plywood
- resin
- water
- foaming agent
- 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.)
- Pending
Links
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- Compositions Of Macromolecular Compounds (AREA)
- Paints Or Removers (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Sealing Material Composition (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、合板の表面の小さい凹
凸を均一な表面に補修するパテ剤の樹脂組成物に関す
る。更に詳しくは、気泡含有塗膜を得ることで体積収縮
のない平滑面を得るための木質用パテ剤等に用いる樹脂
組成物である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin composition of putty agent for repairing small irregularities on the surface of plywood to a uniform surface. More specifically, it is a resin composition used for a putty for wood and the like for obtaining a smooth surface without volume shrinkage by obtaining a coating film containing bubbles.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】従来の
木質用樹脂組成物は、溶剤系と水系に分類され、前者は
速乾性という特徴があるものの有機溶剤を含有、あるい
は用いるために環境及び作業者の健康上の不都合があ
り、かつ施工の際は火気に対する危険性の問題がある。
後者は、作業者の健康上の不都合や火気に対する危険性
はないものの、塗布後の乾燥が遅く、作業性に問題があ
る。2. Description of the Related Art Conventional wood-based resin compositions are classified into solvent-based and water-based compositions. The former is characterized by quick-drying but contains or is used as an organic solvent. There is an inconvenience to the health of the worker, and there is a risk of fire hazard during construction.
The latter is not inconvenient for the health of the worker and there is no risk of fire, but the drying after application is slow and there is a problem in workability.
【０００３】更に、両者共に塗布後に通常「目ヤセ」と
呼ばれる樹脂の体積収縮によるへこみがでるため、この
解決策としてウレタン発泡やフェノール発泡などの発泡
剤を主体としたパテ剤樹脂組成物が上市されている。こ
れらは、近年低級化する合板やパーティクルボード等の
原料である原木に対応すべく「目ヤセ」のない表面平滑
性に優れたパテ剤のニーズに対応したものである。現在
では、塗装用の汎用機器を使用して気泡含有樹脂を塗布
した後、１００℃前後で乾燥し施工することができる。Furthermore, since a dent due to the volume shrinkage of the resin, which is usually called "eye stitch", appears after applying both, a putty resin composition mainly containing a foaming agent such as urethane foaming or phenol foaming is put on the market as a solution to this. Has been done. These meet the needs of a putty agent having excellent surface smoothness, which is free of "eye-loss" in order to cope with raw wood, which is a raw material for plywood and particleboard, which have recently become lower in quality. At present, it is possible to apply the bubble-containing resin by using a general-purpose device for painting, and then dry and apply the resin at around 100 ° C.
【０００４】しかしながら、この方法では二液を混合す
る機器が必要で、作業が複雑になりメンテナンスに手間
がかかるといった問題点がある。また１００℃前後の高
温下におかれている合板などの木質系材料は「ネジレ」
や「反り」が発生するために商品としての価値を損なう
場合が多い。更にはポリイソシアネートを添加すること
で常温に於いても発泡効果は認められるが、長時間を要
し、又塗布自体も硬化不充分で、後工程でのサンディン
グ時にペーパーの「目詰まり」を起こす等の技術的欠陥
がありその改良が要請されている。However, this method requires a device for mixing the two liquids, which causes a problem that the work is complicated and the maintenance is troublesome. In addition, wood-based materials such as plywood that are exposed to high temperatures around 100 ° C are "torsion"
In many cases, the value as a product is impaired due to the occurrence of "warp" or "warp". Furthermore, by adding polyisocyanate, the foaming effect can be recognized even at room temperature, but it takes a long time and the coating itself is not sufficiently cured, causing "clogging" of the paper during sanding in the post process. There are technical defects such as these, and their improvement is required.
【０００５】[0005]
【課題を解決するための手段】本発明者等は、これらの
課題を解決するために、低温で発泡、硬化し、「ネジ
レ」「反り」及び「目ヤセ」のない平滑面が得られ、作
業性及び生産性の良い、しかも低コストの木質用パテ剤
等に用いる樹脂組成物を見い出し、本発明を完成した。In order to solve these problems, the present inventors foamed and cured at a low temperature to obtain a smooth surface free from "twist", "warp" and "blurred eye", The present invention has been completed by finding a resin composition having good workability and productivity and being used for a low-cost putty for wood and the like.
【０００６】即ち、水溶性高分子樹脂及び無機質顔料を
主成分として、それらに発泡剤を加えてなり、全体の固
形分が７０重量％以上からなることを特徴とする樹脂組
成物に関する。That is, the present invention relates to a resin composition comprising a water-soluble polymer resin and an inorganic pigment as main components, a foaming agent added thereto, and a total solid content of 70% by weight or more.
【０００７】以下、パテ剤樹脂組成物について、本発明
を詳細に説明する。本発明に使用する水溶性高分子樹脂
は、ポリビニルアルコール及びポリ（メタ）アクリルア
ミド系樹脂のいずれか、又はそれらの混合物が主に用い
られるが、全体の固形分を７０％以上とすると、「目ヤ
セ」即ち樹脂の体積収縮によるへこみを生じにくいため
好ましい。The present invention will be described in detail below with respect to a putty resin composition. As the water-soluble polymer resin used in the present invention, any one of polyvinyl alcohol and poly (meth) acrylamide resin, or a mixture thereof is mainly used, but when the total solid content is 70% or more, It is preferable because it is unlikely to cause a dent, that is, a dent due to volume shrinkage of the resin.
【０００８】ポリビニルアルコール（以下ポバールと言
う）は、完全ケン化ポバールでも、部分ケン化ポバー
ル、あるいは変性ポバールでも良いが、研磨時のサンデ
ィングベルトの目詰まりや、液の粘度の上昇を防止する
ため分子量は３００〜１００，０００、ケン化率は７０
〜９９％が望ましい。Polyvinyl alcohol (hereinafter referred to as Poval) may be completely saponified Poval, partially saponified Poval, or modified Poval, in order to prevent clogging of the sanding belt during polishing and increase of viscosity of the liquid. The molecular weight is 300 to 100,000 and the saponification rate is 70.
~ 99% is desirable.
【０００９】ポリ（メタ）アクリルアミド系樹脂は、ア
クリルアミド又はメタアクリルアミドの単独重合体でも
よいし、アクリル酸、メタアクリル酸等の共重合可能な
カルボン酸類やアクリルアミド又はメタアクリルアミド
と共重合可能なビニル化合物その他のモノマーと共重合
させたものでも良い。共重合に用いるカルボン酸類、そ
の他のモノマーとも、通常それぞれ全体の１〜３０重量
部（以下部は重量部をいう）で、好ましくは５〜２０部
で用いる。The poly (meth) acrylamide resin may be a homopolymer of acrylamide or methacrylamide, or a copolymerizable carboxylic acid such as acrylic acid or methacrylic acid, or a vinyl compound copolymerizable with acrylamide or methacrylamide. It may be copolymerized with other monomers. The carboxylic acids and other monomers used for the copolymerization are each used in an amount of usually 1 to 30 parts by weight (hereinafter, parts refer to parts by weight), preferably 5 to 20 parts by weight.
【００１０】これらに用いられる発泡剤としては、炭酸
ナトリウム、炭酸水素ナトリウム、炭酸カルシウム、炭
酸マグネシウム、炭酸アンモニウム、重炭酸アンモニウ
ムなどの炭酸化合物や塩化アンモニウム、硫酸アンモニ
ウム、硝酸アンモニウムなどのアンモニウム塩が使用さ
れる。添加量は、樹脂組成物に対して０．５〜３０部添
加するのが効果や経済性の面から好ましい。As the foaming agent used in these, carbonate compounds such as sodium carbonate, sodium hydrogen carbonate, calcium carbonate, magnesium carbonate, ammonium carbonate, ammonium bicarbonate and ammonium salts such as ammonium chloride, ammonium sulfate and ammonium nitrate are used. .. From the viewpoint of effect and economy, it is preferable to add 0.5 to 30 parts to the resin composition.
【００１１】本発明では、発泡剤に加えてしばしば発泡
助剤が用いられる。発泡助剤として用いられるものは、
有機スズ化合物が挙げられる。例えば、スズ（II）アセ
テート、スズ（II）オクトエート、スズ（II）エチルヘ
キソエート、スズ（II）ラウエートのようなカルボン酸
塩、ジブチルスズアセテート、ジブチルスズラウレー
ト、ジブチルスズマレエート及びジオクチルスズジアセ
テートのようなジアルキルスズ塩が用いられる。添加量
としては、通常０．１〜１．０部添加される。In the present invention, a foaming aid is often used in addition to the foaming agent. What is used as a foaming aid is
Organotin compounds may be mentioned. For example, tin (II) acetate, tin (II) octoate, tin (II) ethylhexoate, carboxylates such as tin (II) laurate, dibutyltin acetate, dibutyltin laurate, dibutyltin maleate and dioctyltin diacetate. A dialkyl tin salt such as The amount added is usually 0.1 to 1.0 part.
【００１２】また、第三級脂肪族アミンも通常用いられ
るものであり、例えばトリエチレンジアミン、Ｎ−エチ
ルモルホリン、Ｎ，Ｎ，Ｎ−テトラメチル−１，３−ブ
タンジアミン、ビス−２−（Ｎ，Ｎ−ジメチルアミノ）
エチルエーテル、ジエチレントリアミン、オキシビス
（Ｎ，Ｎ−ジエタノールアミン）のような化合物が用い
られる。添加量は、通常０．１〜０．６部添加するが、
好ましくは０．２〜０．４部である。発泡剤及び発泡助
剤は上記から選ばれる１種及び２種以上で、単独もしく
は混合物でもかまわない。Tertiary aliphatic amines are also commonly used, for example, triethylenediamine, N-ethylmorpholine, N, N, N-tetramethyl-1,3-butanediamine, bis-2- (N , N-dimethylamino)
Compounds such as ethyl ether, diethylenetriamine, oxybis (N, N-diethanolamine) are used. The addition amount is usually 0.1 to 0.6 part,
It is preferably 0.2 to 0.4 part. The foaming agent and foaming auxiliary are one kind or two or more kinds selected from the above, and may be used alone or in a mixture.
【００１３】樹脂組成物に用いる顔料としては、二酸化
チタン、炭酸カルシウム、マイカ、タルク、クレー、ベ
ントナイト、との粉、カオリンなどが配合されるがこれ
に限定されるものではない。なお、樹脂組成物にその他
使用される添加剤としては、分散剤、整泡剤、造膜助剤
などが必要により加えられる。The pigment used in the resin composition includes, but is not limited to, titanium dioxide, calcium carbonate, mica, talc, clay, bentonite powder, kaolin and the like. It should be noted that as other additives used in the resin composition, a dispersant, a foam stabilizer, a film-forming aid and the like are added as necessary.
【００１４】通常、パテ剤樹脂組成物は塗装直前に調整
され、通常の塗布手段により直ちに塗布される。通常は
調整したパテ剤樹脂組成物を直ちに塗布すれば良いが水
系樹脂と整泡剤、消泡剤、分散剤、無機顔料及び有機顔
料をあらかあじめ混合し、塗装時に発泡剤、発泡助剤等
を混合して、パテ剤樹脂組成物とし、ロールコーターや
ナイフコーターなど通常の塗布手段で塗布されるが、先
に出願（特願平３−１８４２６３）した方法で塗布すれ
ばより好適な結果が得られる。Usually, the putty resin composition is prepared immediately before coating and is immediately coated by a conventional coating means. Usually, the adjusted putty agent resin composition may be applied immediately, but a water-based resin and a foam stabilizer, an antifoaming agent, a dispersant, an inorganic pigment and an organic pigment are preliminarily mixed, and a foaming agent and a foaming auxiliary agent are applied at the time of coating. A putty resin composition is prepared by mixing agents and the like, and is applied by a usual coating means such as a roll coater or a knife coater, but it is more preferable to apply it by the method previously applied (Japanese Patent Application No. 3-184263). The result is obtained.
【００１５】上記塗布手段により、塗布された樹脂組成
物は、該樹脂組成物に配合された発泡剤が若干加温され
た程度で分解し、小さな気泡を発生させ、更に発泡助剤
により、発泡を促進、硬化せしめ気泡を含有した強固な
塗膜を形成する。樹脂組成物に整泡剤あるいは消泡剤が
配合されている場合には、発生する気泡が、更に均一に
発泡、調整される。The resin composition applied by the above-mentioned application means decomposes in a degree that the foaming agent mixed in the resin composition is slightly heated to generate small bubbles, and further foams by the foaming aid. To form a strong coating film containing bubbles. When the resin composition contains a foam stabilizer or an antifoaming agent, the bubbles generated are further uniformly foamed and adjusted.
【００１６】塗装されたパテ剤樹脂組成物が均一に発
泡、硬化する温度は４０〜８０℃が好ましく、更に好ま
しくは４０〜６０℃が好適である。発泡した塗膜には塗
膜全体に気泡が生ずるが、気泡のでき方、量、成長速度
などは水溶性高分子樹脂および発泡剤の種類、量、整泡
剤などにより相違するので適宜に配合処方が定められ
る。The temperature at which the applied putty resin composition is uniformly foamed and cured is preferably 40 to 80 ° C, more preferably 40 to 60 ° C. Bubbles are generated in the entire coating film in the foamed coating film, but the formation, amount, growth rate, etc. of bubbles differ depending on the type and amount of water-soluble polymer resin and foaming agent, foam stabilizer, etc. The prescription is set.
【００１７】かくして得られたパテ剤樹脂組成物は、合
板及びパーティクルボードのような木質材料に塗布され
「目ヤセ」がなく「ネジレ」「反り」もない被塗布材で
平滑に仕上げることができ、サンディング適性も良好な
二次加工用木質材料として好ましい。The putty agent resin composition thus obtained can be applied to wood materials such as plywood and particle board, and can be finished smoothly with a material to be coated which is free from "graininess", "twist" and "warp". It is preferable as a wood material for secondary processing, which has good sanding suitability.
【００１８】[0018]
【実施例】以下、実施例及び比較例によって本発明を詳
細に説明する。EXAMPLES The present invention will be described in detail below with reference to examples and comparative examples.
【００１９】実施例１ まず、水溶性高分子樹脂として表１の配合Ａ、Ｂ、Ｃ、
Ｄ、Ｅのものを用意した。次に発泡剤として表２のＩ、
IIのものを用意した。Example 1 First, as the water-soluble polymer resin, the formulations A, B, C of Table 1
D and E were prepared. Next, I of Table 2 as a foaming agent,
I prepared the II one.
【００２０】[0020]
【表１】 [Table 1]
【００２１】[0021]
【表２】 [Table 2]
【００２２】しかして、水溶性高分子樹脂と添加剤を配
合した樹脂組成物と発泡剤を表３に示す組合わせにより
混合してパテ剤樹脂組成物ＡＩ〜ＥIIの１０種を得た。Then, the resin composition containing the water-soluble polymer resin and the additive and the foaming agent were mixed in the combinations shown in Table 3 to obtain 10 kinds of putty resin compositions AI to EII.
【００２３】[0023]
【表３】 [Table 3]
【００２４】表３の水溶性高分子パテ剤樹脂組成物を試
験用に２．５ｍｍ合板（通常乙板と呼ばれる裏板を表に
も使用、割れやピンホールなどの凹部の欠点を有するも
の）にナイフコーターにて２．５ｍｍ合板全面に５０〜
１００ｇ／ｍ2 塗布した後、５０〜６０℃にて１０分間
加温し発泡、硬化させ、欠点凹部を平滑あるいは若干の
凸部にならしめた。その結果、パテ剤樹脂組成物を塗
布、乾燥した２．５ｍｍ合板に「ネジレ」「反り」の発
生はなく、また、サンディングを行なっても、サンディ
ングペーパーの「目詰まり」はなかった。さらに、サン
デイングを行なった２．５ｍｍ合板を１０分間室温に放
置したが「目ヤセ」はなかった。2.5 mm plywood for testing the water-soluble polymer putty resin composition of Table 3 (a back plate usually called Otsu plate is also used on the front side, which has defects of recesses such as cracks and pin holes) Use a knife coater to cover 50 mm
After coating at 100 g / m 2, it was heated at 50 to 60 ° C. for 10 minutes to cause foaming and curing, and the defect recesses were smoothed or slightly raised. As a result, there was no occurrence of "twist" or "warp" on the 2.5 mm plywood coated with the putty resin composition and dried, and there was no "clogging" of the sanding paper even after sanding. Further, the sanded 2.5 mm plywood was allowed to stand at room temperature for 10 minutes, but there was no "eye blemishes".
【００２５】比較例１ 実施例１の水溶性高分子樹脂組成物（表１）を用いて、
発泡剤を添加しないで実施例１の条件で塗布した。その
結果、樹脂組成物を塗布、乾燥した２．５ｍｍ合板に
「ネジレ」「反り」の発生はないものの、凹部が充分発
泡せず、サンディングを行なっても、なお凹部が見られ
た。そこで乾燥温度を９０〜１００℃にし、１０〜２０
分間充分な加熱を行ったところ、欠点凹部を平滑あるい
は若干の凸部にならしめたが、乾燥した２．５ｍｍ合板
に「ネジレ」「反り」が発生した。Comparative Example 1 Using the water-soluble polymer resin composition of Example 1 (Table 1),
Coating was performed under the conditions of Example 1 without adding a foaming agent. As a result, although the 2.5 mm plywood coated with the resin composition and dried did not cause "twist" or "warp", the recesses were not sufficiently foamed and were still seen even after sanding. Therefore, the drying temperature is set to 90 to 100 ° C. and 10 to 20
After sufficient heating for a minute, the concave portions of the defects were smoothed or smoothed to some extent, but "twist" and "warp" occurred on the dried 2.5 mm plywood.
【００２６】[0026]
【発明の効果】本発明によれば、従来技術では達成され
なかった合板に塗布後の「目ヤセ」による体積収縮、合
板の「ネジレ」「反り」、さらには、サンディング時の
「目詰まり」等の発生防止が達成されることが判った。EFFECTS OF THE INVENTION According to the present invention, the volume shrinkage due to the "eye shaving" after applying to plywood, the "twisting" and "warping" of the plywood, and the "clogging" during sanding, which have not been achieved by the prior art, are achieved. It was found that the prevention of the occurrence of such problems was achieved.
【００２７】即ち、比較例ではこれらの現象の目的が達
成されず、実施例では水溶性高分子樹脂組成物に発泡剤
を添加、混合し、乾燥温度が低温であるにも拘らず、発
泡、硬化が均一に行われ、これらの現象が全て満足して
いるパテ剤樹脂組成物を得ることができた。本発明から
今後益々、原木事情の悪化する木質及び合板業界に与え
る影響は大なるものがあり、本発明の意義は大きい。That is, the objects of these phenomena were not achieved in the comparative examples, and in the examples, the foaming agent was added to and mixed with the water-soluble polymer resin composition, and the foaming was performed despite the low drying temperature. It was possible to obtain a putty resin composition in which the curing was performed uniformly and all of these phenomena were satisfied. The present invention has a great influence on the wood quality and the plywood industry where the situation of raw wood deteriorates in the future, and the present invention is significant.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０９Ｄ 5/34 ＰＲＣ 7211−4Ｊ // Ｃ０８Ｊ 3/00 ＣＥＲ 9268−4Ｆ 3/20 ＣＥＲ Ｚ 9268−4Ｆ Ｃ０８Ｌ 29:04 33:24 (72)発明者 長 井 廣 義 山口県下関市彦島迫町七丁目１番１号 三 井東圧化学株式会社内 (72)発明者 田 中 光 一 山口県下関市彦島迫町七丁目１番１号 三 井東圧化学株式会社内─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification number Office reference number FI technical display location C09D 5/34 PRC 7211-4J // C08J 3/00 CER 9268-4F 3/20 CER Z 9268- 4F C08L 29:04 33:24 (72) Inventor Nagai Hiroyoshi 7-1, 1-1 Hikoshimasako-cho, Shimonoseki-shi, Yamaguchi Prefecture Mitsui Toatsu Chemical Co., Ltd. (72) Inventor Koichi Tanaka Shimonoseki, Yamaguchi Prefecture 7-1, 1-1 Hikoshima Sako-machi Mitsui Toatsu Chemical Co., Ltd.
Claims (3)
主成分として、それらに発泡剤を加えてなり、全体の固
形分が７０重量％以上からなることを特徴とする樹脂組
成物。1. A resin composition comprising a water-soluble polymer resin and an inorganic pigment as main components, a foaming agent added thereto, and a total solid content of 70% by weight or more.
〜１００，０００であり、ケン化率が７０〜９９％であ
るポリビニルアルコール及び／又は分子量３，０００〜
３００，０００であるポリ（メタ）アクリルアミド系で
ある請求項１記載の樹脂組成物。2. The water-soluble polymer resin has a molecular weight of 300.
Polyvinyl alcohol having a saponification rate of 70 to 99% and / or a molecular weight of 3,000 to 100,000.
The resin composition according to claim 1, which is a poly (meth) acrylamide-based resin having a viscosity of 300,000.
ム化合物からなる群より選ばれる請求項１記載の樹脂組
成物。3. The resin composition according to claim 1, wherein the foaming agent is selected from the group consisting of carbonic acid compounds and ammonium compounds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3281266A JPH05117629A (en) | 1991-10-28 | 1991-10-28 | Resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3281266A JPH05117629A (en) | 1991-10-28 | 1991-10-28 | Resin composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05117629A true JPH05117629A (en) | 1993-05-14 |
Family
ID=17636680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3281266A Pending JPH05117629A (en) | 1991-10-28 | 1991-10-28 | Resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05117629A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5616419A (en) * | 1995-06-07 | 1997-04-01 | Rohm And Haas Company | Method of producing coating on reconstituted wood substrate |
-
1991
- 1991-10-28 JP JP3281266A patent/JPH05117629A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5616419A (en) * | 1995-06-07 | 1997-04-01 | Rohm And Haas Company | Method of producing coating on reconstituted wood substrate |
| US5635248A (en) * | 1995-06-07 | 1997-06-03 | Rohm And Haas Company | Method of producing coating on reconstituted wood substrate |
| US5741823A (en) * | 1995-06-07 | 1998-04-21 | Rohm And Haas Company | Polymerized latex emulsion suitable for producing coating on reconstituted wood substrate |
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