JPH10204370A - Vibration-damping water-based coating composition - Google Patents
Vibration-damping water-based coating compositionInfo
- Publication number
- JPH10204370A JPH10204370A JP1117497A JP1117497A JPH10204370A JP H10204370 A JPH10204370 A JP H10204370A JP 1117497 A JP1117497 A JP 1117497A JP 1117497 A JP1117497 A JP 1117497A JP H10204370 A JPH10204370 A JP H10204370A
- Authority
- JP
- Japan
- Prior art keywords
- vinyl acetate
- resin emulsion
- damping
- acetate resin
- composition
- 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.)
- Granted
Links
Landscapes
- Paints Or Removers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は制振性水性塗料組成
物に関する。TECHNICAL FIELD The present invention relates to a damping water-based coating composition.
【０００２】[0002]
【従来の技術】従来、自動車室内の制振は、厚さ２〜４
ｍｍのアスファルトシートを自動車塗装工程の途中で自
動車車体室内床上面に敷き、焼き付け、融着させること
によってなされてきた。2. Description of the Related Art Conventionally, vibration suppression in an automobile cabin has a thickness of 2 to 4 mm.
mm asphalt sheets have been laid, baked and fused on the upper surface of the interior floor of an automobile body during the automobile painting process.
【０００３】例えば、特公昭４７−１３３２４号公報に
記載してあるように、アスファルト／フィラー／アスフ
ァルト変性剤を熱溶融しカレンダーによりシート化、所
定の形状に切断し、床面にシートを敷き焼き付け、融着
する方法が提案されている。[0003] For example, as described in JP-B-47-13324, asphalt / filler / asphalt modifier is hot-melted, formed into a sheet by a calender, cut into a predetermined shape, and laid on the floor and baked. , A method of fusing has been proposed.
【０００４】[0004]
【発明が解決しようとする課題】しかし上記技術では、
得られる制振用シートは、各車種ごとの形状に併せて切
断する必要があり、複雑な型どり作業、各車種ごとの分
類、車種変更時の対応等作業時の複雑な問題があった。However, in the above technique,
The obtained vibration damping sheet needs to be cut in accordance with the shape of each vehicle type, and there are complicated problems at the time of operations such as complicated molding work, classification for each vehicle type, and correspondence when changing the vehicle type.
【０００５】また型どりした制振シートは貯蔵中積み重
ねておかれるが、シート同士のブロッキング防止のた
め、通常シートとシートの間に炭酸カルシウム等の粉末
を散布されている。このためシート設置作業時にこの粉
末が微粉塵として空中に飛散し、塗装時に塗膜に付着混
入し、塗膜欠陥の原因となるという問題が発生してお
り、種々の対策が必要とされていた。[0005] The shaped vibration damping sheets are piled up during storage, but powder of calcium carbonate or the like is usually sprayed between the sheets to prevent blocking between the sheets. For this reason, this powder scatters in the air as fine dust during sheet installation work, and adheres to and mixes with the coating film during coating, causing a problem of causing a coating film defect, and various measures have been required. .
【０００６】またシートの設置作業はロボット化ができ
ず、人手に頼っており、作業姿勢、作業環境等にも問題
が多い。さらにシートを設置して融着する従来の方法で
は、車体床面の凹凸に対応しきれず、床面とシートとの
密着不良の部分ができやすく、十分な防振性が得られな
いという問題があった。[0006] Further, the work of setting the seat cannot be made into a robot, but relies on humans, and there are many problems in the working posture, working environment and the like. In addition, the conventional method of installing and fusing the sheet cannot cope with the unevenness of the floor of the car body, and the poor adhesion between the floor and the sheet is likely to occur, resulting in insufficient vibration isolation. there were.
【０００７】また水平部分には対応できても、垂直部分
や天井部分には対応できないという決定的な欠陥があっ
た。本発明は、制振用シートを用いず、複雑な型どり作
業等が不要で、垂直部分や天井部分にも適用できる制振
性塗料組成物を提供することを目的とする。[0007] Further, there is a decisive defect that it can cope with a horizontal portion but cannot cope with a vertical portion or a ceiling portion. An object of the present invention is to provide a damping coating composition which does not require a sheet for vibration damping, does not require complicated molding work, and can be applied to a vertical portion or a ceiling portion.
【０００８】上述の欠点を解決するために、例えば、特
開平６−１１２８４９２号公報にみられるような発泡性
の水性エマルジョン系塗料が提案され、特開昭６２−２
２７９６６号公報や特開平６−２００１９６号公報には
アスファルトや水硬性無機充填剤を用いた制振性水性塗
料が提案されているが、発泡条件のコントロールの問題
や安定性の問題がある。[0008] In order to solve the above-mentioned drawbacks, for example, a foamable aqueous emulsion paint as disclosed in JP-A-6-112492 has been proposed.
JP-A-27966 and JP-A-6-200196 propose a damping water-based paint using asphalt and a hydraulic inorganic filler, but have problems in controlling foaming conditions and stability.
【０００９】本発明は、防振用シートを用いず、複雑な
型どり作業等が不要で、垂直部分や天井部分にも適用で
きる制振性水性塗料組成物を提供することを目的とす
る。It is an object of the present invention to provide a water-damping water-based paint composition which can be applied to a vertical portion or a ceiling portion without using a vibration-proof sheet, requiring a complicated molding work or the like.
【００１０】[0010]
【課題を解決するための手段】本発明者は、上記課題を
鋭意検討した結果、制振塗料を塗装、乾燥することによ
り、上述のごとき従来のシート状成形物による防振方法
の諸欠点あるいは問題点を解決または改善することがで
きることを発見し、本発明を完成させるにいたった。Means for Solving the Problems As a result of diligent studies on the above-mentioned problems, the present inventor has found that the above-mentioned conventional vibration-damping method using a sheet-like molded product can be obtained by coating and drying a damping paint. The inventors have found that the problem can be solved or improved, and have completed the present invention.
【００１１】すなわち、本発明は、酢酸ビニル系樹脂エ
マルジョンと充填剤とを必須成分として含んでなる制振
性水性塗料組成物において、酢酸ビニル系樹脂が、Ｔｇ
が１０〜５０℃であり、メタノール溶媒で測定したゲル
分率が０〜３０％であり、および損失角正接（ｔａｎ
δ）が１．５以上であることを特徴とする制振性水性塗
料組成物に関する。That is, the present invention relates to a damping water-based coating composition comprising a vinyl acetate resin emulsion and a filler as essential components.
Is from 10 to 50 ° C., the gel fraction measured with a methanol solvent is from 0 to 30%, and the loss angle tangent (tan) is
δ) is 1.5 or more.
【００１２】好ましくは、本発明は酢酸ビニル系樹脂エ
マルジョンが、酢酸ビニルと（メタ）アクリル酸エステ
ル類とを主要成分として、乳化剤の存在下、水性媒体中
で乳化重合して得られる共重合体エマルジョンであり、
好ましくは酢酸ビニル系樹脂エマルジョンの樹脂粒子
が、平均粒子径１５０〜１０００ｎｍであり、好ましく
は充填剤の使用量が、組成物固形分中の容量分率で２０
〜７０％である制振性水性塗料組成物に関する。Preferably, the present invention provides a copolymer obtained by subjecting a vinyl acetate resin emulsion to emulsion polymerization in an aqueous medium in the presence of an emulsifier, using vinyl acetate and (meth) acrylates as main components. An emulsion,
Preferably, the resin particles of the vinyl acetate-based resin emulsion have an average particle diameter of 150 to 1000 nm, and preferably, the amount of the filler used is 20% by volume fraction in the solid content of the composition.
７０70%.
【００１３】[0013]
【発明の実施の形態】本発明は、酢酸ビニル系樹脂エマ
ルジョンと充填剤とを必須成分として含んでなる制振性
水性塗料組成物において、動的粘弾性測定（以下ＤＭＡ
という）の損失角正接（以下ｔａｎδという）が最大と
なる温度（以下Ｔｇという）が１０〜５０℃であり、メ
タノール溶媒で測定したゲル分率が０〜３０％であり、
ＤＭＡのｔａｎδの最大値（以下ｔａｎδmaxという）
が１．５以上である酢酸ビニル系樹脂を用いることを特
徴とする制振性水性塗料組成物に関する。BEST MODE FOR CARRYING OUT THE INVENTION The present invention relates to a vibration-damping aqueous coating composition comprising a vinyl acetate resin emulsion and a filler as essential components.
Is the temperature at which the loss angle tangent (hereinafter, referred to as tan δ) becomes maximum (hereinafter, referred to as Tg) is 10 to 50 ° C., the gel fraction measured with a methanol solvent is 0 to 30%,
Maximum value of tan δ of DMA (hereinafter referred to as tan δ max)
The present invention relates to a water-damping water-based coating composition characterized by using a vinyl acetate resin having a value of 1.5 or more.
【００１４】本発明の酢酸ビニル系樹脂エマルジョンに
おけるゲル分率とは、２ｃｍ（縦）×２ｃｍ（横）×
０．５ｍｍ（厚み）の乾燥樹脂フィルムを、メタノール
溶媒中に２５℃で２４時間浸漬し、フィルムの不溶分を
乾燥させたときの重量を不溶分重量とすると、（不溶分
重量）／（元のフィルム重量）×１００の（％）値をい
う。The gel fraction in the vinyl acetate resin emulsion of the present invention is 2 cm (length) × 2 cm (width) ×
A dry resin film having a thickness of 0.5 mm (thickness) is immersed in a methanol solvent at 25 ° C. for 24 hours, and the weight obtained by drying the insoluble matter in the film is defined as the insoluble matter weight. (Film weight) × 100 (%) value.
【００１５】ゲル分率は樹脂の分子構造を反映するもの
であり、本発明の酢酸ビニル系樹脂エマルジョンのゲル
分率が３０％を越えると樹脂フィルムのＤＭＡのｔａｎ
δmax値は目標とする１．５以上が得られない。The gel fraction reflects the molecular structure of the resin, and when the gel fraction of the vinyl acetate resin emulsion of the present invention exceeds 30%, the tan of DMA of the resin film is reduced.
The δmax value of 1.5 or more cannot be obtained.
【００１６】また制振性は、現在使われている２ｍｍ厚
のアスファルトシートを施した鋼板の損失係数は０．１
程度であり、その数値以上の値が一般的に要求されてい
る。制振性即ち損失係数は用いる塗料皮膜のＤＭＡのｔ
ａｎδ値に相関し、ｔａｎδ値が高いほど損失係数が高
く制振性に優れると言われている。塗料皮膜のｔａｎδ
値は、当該塗料に用いる樹脂のｔａｎδ値に相関するこ
とは本発明を完成する過程でも確認された。制振塗料皮
膜が制振効果を発揮する温度域は当該皮膜のＴｇに関わ
り、当該皮膜のＴｇは樹脂フィルムのＴｇ即ちＤＭＡの
ｔａｎδmaxの温度に深く関わることが確認されてい
る。The damping property is such that the loss coefficient of a steel sheet provided with a 2 mm thick asphalt sheet currently used is 0.1%.
And a value higher than the numerical value is generally required. The damping or loss factor is determined by the t
It is said that the higher the tan δ value is, the higher the loss coefficient is and the more excellent the damping property is. Tan δ of paint film
The correlation of the value with the tan δ value of the resin used in the paint was also confirmed in the process of completing the present invention. It has been confirmed that the temperature range in which the damping paint film exhibits a damping effect is related to the Tg of the film, and that the Tg of the film is deeply related to the Tg of the resin film, that is, the temperature of tanδmax of DMA.
【００１７】本発明の酢酸ビニル系樹脂エマルジョン
は、ｔａｎδmaxの値が１．５以上であり、２．０以上
であることが好ましい。本発明の酢酸ビニル系樹脂は、
Ｔｇが１０〜５０℃であるが、これは一般的に自動車車
体室内床の制振材に要求される温度域での制振性を維持
するために必要であるからであり、このうち２０〜４０
℃であることが好ましい。The vinyl acetate resin emulsion of the present invention has a value of tan δmax of 1.5 or more, preferably 2.0 or more. The vinyl acetate resin of the present invention,
The Tg is 10 to 50 ° C., because it is generally necessary to maintain the vibration damping property in the temperature range required for the vibration damping material of the interior floor of the vehicle body, and among them, 20 to 50 ° C. 40
C. is preferred.
【００１８】本発明の酢酸ビニル系樹脂エマルジョンの
製造方法は、特に限定されず、酢酸ビニル単独又はこれ
以外の単量体類をラジカル重合して得られる酢酸ビニル
系樹脂のエマルジョンであれば、どのような種類であっ
ても用いることができる。このうち、耐加水分解性の点
で酢酸ビニルと（メタ）アクリル酸エステル類とを主要
成分として、乳化剤の存在下で乳化重合して得られるも
のが好ましい。The method for producing the vinyl acetate resin emulsion of the present invention is not particularly limited, and any emulsion of vinyl acetate resin obtained by radical polymerization of vinyl acetate alone or other monomers can be used. Even such types can be used. Among them, those obtained by emulsion polymerization using vinyl acetate and (meth) acrylates as main components in the presence of an emulsifier are preferable from the viewpoint of hydrolysis resistance.
【００１９】（メタ）アクリル酸エステル類としては、
例えば（メタ）アクリル酸メチル、（メタ）アクリル酸
エチル、（メタ）アクリル酸プロピル、（メタ）アクリ
ル酸ブチル、（メタ）アクリル酸ペンチル、（メタ）ア
クリル酸ヘキシル、（メタ）アクリル酸ヘプチル、（メ
タ）アクリル酸オクチル、（メタ）アクリル酸オクタデ
シル等の（メタ）アクリル酸エステル、アクリル酸−２
−ヒドロキシエチル、アクリル酸−２−ヒドロキシプロ
ピル、メタクリル酸−２−ヒドロキシエチル等の如きエ
チレン性不飽和カルボン酸のヒドロキシアルキルエステ
ル、（メタ）アクリル酸グリシジル等の如きエチレン性
不飽和カルボン酸のグリシジルエステル、及び（メタ）
アクリルアミド、Ｎ−メチロール（メタ）アクリルアミ
ド、Ｎ−ブトキシメチルアクリルアミド、ジアセトンア
クリルアミド、（メタ）アクリロニトリル等の不飽和ニ
トリル等の化合物が挙げられる。The (meth) acrylates include:
For example, methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, butyl (meth) acrylate, pentyl (meth) acrylate, hexyl (meth) acrylate, heptyl (meth) acrylate, (Meth) acrylates such as octyl (meth) acrylate and octadecyl (meth) acrylate, acrylic acid-2
Hydroxyalkyl esters of ethylenically unsaturated carboxylic acids such as -hydroxyethyl, 2-hydroxypropyl acrylate, 2-hydroxyethyl methacrylate, and glycidyl of ethylenically unsaturated carboxylic acids such as glycidyl (meth) acrylate Esters, and (meth)
Examples include compounds such as acrylamide, N-methylol (meth) acrylamide, N-butoxymethylacrylamide, diacetone acrylamide, and unsaturated nitriles such as (meth) acrylonitrile.
【００２０】またその他酢酸ビニルと共重合しうるエチ
レン性不飽和単量体を単量体として使用することができ
る。その他の酢酸ビニルと共重合しうるエチレン性不飽
和単量体としては、例えばプロピオン酸ビニル、バーサ
ティック酸ビニルエステル等の如きビニルエステル、塩
化ビニリデン、臭化ビニリデン等の如きビニリデンハラ
イド等、またエチレン等が挙げられる。Other ethylenically unsaturated monomers copolymerizable with vinyl acetate can be used as monomers. Other ethylenically unsaturated monomers copolymerizable with vinyl acetate include, for example, vinyl esters such as vinyl propionate and vinyl versatate, vinylidene halides such as vinylidene chloride and vinylidene bromide, and ethylene. And the like.
【００２１】乳化剤としては、アニオン性乳化剤、ノニ
オン性乳化剤、カチオン性乳化剤のいずれの乳化剤も使
用することができる。これらの乳化剤のうち、乳化重合
安定性の点でノニオン性乳化剤、又はノニオンアニオン
性乳化剤が好ましく、ノニオン性乳化剤とノニオンアニ
オン性乳化剤とを併用するのがより好ましい。As the emulsifier, any of anionic emulsifier, nonionic emulsifier and cationic emulsifier can be used. Among these emulsifiers, a nonionic emulsifier or a nonionic anionic emulsifier is preferable in terms of emulsion polymerization stability, and it is more preferable to use a nonionic emulsifier and a nonionic anionic emulsifier in combination.
【００２２】アニオン性乳化剤としては、例えば脂肪酸
石鹸、ロジン酸石鹸、アルキルスルホン酸塩、ジアルキ
ルアリールスルホン酸塩、アルキルスルホコハク酸塩、
ポリオキシエチレンアルキル硫酸塩等が挙げられ、ノニ
オン性乳化剤としては、例えばポリオキシエチレンアル
キルエーテル、ポリオキシエチレンアルキルアリールエ
ーテル、ポリオキシエチレンソルビタン脂肪酸エステ
ル、オキシエチレンオキシプロピレンブロックコポリマ
ー等が挙げられる。Examples of the anionic emulsifier include fatty acid soap, rosin acid soap, alkyl sulfonate, dialkylaryl sulfonate, alkyl sulfosuccinate,
Examples of the nonionic emulsifier include polyoxyethylene alkyl ethers, polyoxyethylene alkyl aryl ethers, polyoxyethylene sorbitan fatty acid esters, and oxyethylene oxypropylene block copolymers.
【００２３】酢酸ビニル系樹脂エマルジョン、特に乳化
剤を使用して製造した酢酸ビニル系樹脂エマルジョン共
重合体が、単一のｔａｎδmaxを示し、ｔａｎδmax値の
高い共重合体を得やすいので、好ましい。乳化剤を用い
ず、酢酸ビニル系樹脂エマルジョンによく用いられる保
護コロイドを用いた場合には、得られる共重合体は複数
のｔａｎδmax値を示し、必然的にｔａｎδmax値を低く
するので好ましくない。A vinyl acetate-based resin emulsion, particularly a vinyl acetate-based resin emulsion copolymer produced using an emulsifier, is preferable because it exhibits a single tan δmax and a copolymer having a high tan δmax value is easily obtained. When a protective colloid often used for a vinyl acetate resin emulsion is used without using an emulsifier, the obtained copolymer exhibits a plurality of tan δmax values, and undesirably lowers the tan δmax value.
【００２４】酢酸ビニル系樹脂エマルジョンの酢酸ビニ
ル系樹脂粒子の平均粒子径は、特に制限されないが、１
５０ｎｍ〜１０００ｎｍが好ましく、このうち２００ｎ
ｍ〜８００ｎｍがより好ましい。本発明の塗料樹脂組成
物を厚塗りした場合、１５０ｎｍ未満ではブリスターの
発生が著しく、１０００ｎｍを越えるとクラックの発生
が著しく、制振効果を得るのに必要な膜厚が得られな
い。The average particle size of the vinyl acetate resin particles of the vinyl acetate resin emulsion is not particularly limited,
It is preferably from 50 nm to 1000 nm, of which 200 n
m to 800 nm is more preferable. When the coating resin composition of the present invention is thickly applied, blisters are significantly generated at a thickness of less than 150 nm, and cracks are generated at a thickness of more than 1000 nm, and a film thickness required for obtaining a vibration damping effect cannot be obtained.
【００２５】本発明の酢酸ビニル系樹脂エマルジョン
は、酢酸ビニルあるいは酢酸ビニルと酢酸ビニルと共重
合しうるエチレン性不飽和単量体の混合物を、５０〜８
０℃に加熱した乳化剤含有の水溶液中に重合開始剤と共
に滴下し、乳化重合することにより得ることができる。The vinyl acetate resin emulsion of the present invention comprises a mixture of vinyl acetate or a mixture of vinyl acetate and an ethylenically unsaturated monomer copolymerizable with vinyl acetate in an amount of 50 to 8%.
It can be obtained by dropping together with a polymerization initiator into an aqueous solution containing an emulsifier heated to 0 ° C. and performing emulsion polymerization.
【００２６】本発明の充填剤としては、特に限定するも
のではないが、例えば重質炭酸カルシュウム、軽質炭酸
カルシュウム、タルク、クレー、シリカ、マイカ、水酸
化アルミニウム、水酸化マグネシュウム、炭酸マグネシ
ュウム、硫酸バリウム、カーボンブラック、酸化チタ
ン、セピオライト等が挙げられる。The filler of the present invention is not particularly limited. For example, heavy calcium carbonate, light calcium carbonate, talc, clay, silica, mica, aluminum hydroxide, magnesium hydroxide, magnesium carbonate, barium sulfate , Carbon black, titanium oxide, sepiolite and the like.
【００２７】充填剤の使用量は、特に制限されるもので
はないが、制振性は共重合体と充填材の体積比に左右さ
れる場合が多いので、制振性を良くするため、組成物固
形分中の容量分率（以下ＰＶＣという）２０％〜７０％
であることが好ましい。２０％未満では塗料の乾燥成膜
性に問題があり、制振効果を得るのに必要な膜厚が得ら
れない。即ち厚塗りした場合に垂れやすく、ブリスター
の発生、クラックの発生の問題がある。ＰＶＣは充填剤
の使用量が、塗料固形分中の体積分率で表される。７０
％を越えると制振性を低下させることになるので好まし
くない。The amount of the filler used is not particularly limited. However, since the damping property often depends on the volume ratio between the copolymer and the filler, the composition should be improved to improve the damping property. 20% to 70% by volume fraction (hereinafter referred to as PVC) in solid matter
It is preferred that If it is less than 20%, there is a problem in the dry film forming property of the paint, and the film thickness required for obtaining the vibration damping effect cannot be obtained. In other words, when thickly applied, it tends to sag, causing problems of blistering and cracking. In PVC, the amount of the filler used is represented by the volume fraction in the solid content of the paint. 70
%, It is not preferable because the vibration damping property is reduced.
【００２８】本発明の制振性水性塗料組成物には、その
他必要に応じて添加剤を加えることができる。例えば、
無機顔料、有機顔料等の着色剤、増粘剤、分散剤、消泡
剤、酸化防止剤、紫外線吸収剤、界面活性剤、殺菌剤、
防腐剤、湿潤剤、架橋剤、キレート剤、感熱ゲル化剤、
起泡剤、整泡剤、浸透剤、撥水・撥油剤・ブロッキング
防止剤、難燃剤等を挙げることができる。かかる添加剤
の選択、添加量、添加順序等は、制振性水性塗料組成物
の製造条件、作業性、安定性、更に加工適性、塗布量等
を考慮して、適宜に決定されれば良い。Additives can be added to the damping water-based coating composition of the present invention, if necessary. For example,
Colorants such as inorganic pigments and organic pigments, thickeners, dispersants, defoamers, antioxidants, ultraviolet absorbers, surfactants, bactericides,
Preservatives, wetting agents, crosslinking agents, chelating agents, thermosensitive gelling agents,
Examples thereof include a foaming agent, a foam stabilizer, a penetrant, a water / oil repellent, an antiblocking agent, and a flame retardant. The selection, addition amount, addition order, and the like of such additives may be appropriately determined in consideration of the manufacturing conditions, workability, stability, processability, application amount, and the like of the damping water-based coating composition. .
【００２９】本発明の制振性水性塗料組成物の塗装方法
は特に限定されるものではなく、必要に応じた方法をと
ることができるが、エアレススプレー、スリットノズル
押しだし等が好ましい。The method of applying the damping water-based coating composition of the present invention is not particularly limited, and any method can be used as needed, but airless spraying, slit nozzle extrusion and the like are preferred.
【００３０】本発明の制振性水性塗料組成物の乾燥・硬
化方法は特に限定されるものではないが、自動車塗装焼
き付け工程の中、中塗り及び上塗りの焼き付け工程を利
用するのが経済的で好ましい。The method for drying and curing the water-damping water-based coating composition of the present invention is not particularly limited. However, it is economical to use a baking step of a middle coat and a top coat in the baking step of an automobile paint. preferable.
【００３１】本発明の制振性水性塗料組成物は、自動車
車室内の制振塗料以外に各種制振塗料、即ち金属、木
材、合板等建築、土木関連等の制振塗料にも用いられる
他、自動車の床裏等に塗装する制振塗料、床裏、ガソリ
ンタンク等に塗装する耐チッピング塗料にも使うことが
できる。The water-damping water-based paint composition of the present invention is used not only for damping paints in automobile interiors, but also for various damping paints such as metals, wood, plywood, etc., and civil engineering-related damping paints. It can also be used for anti-vibration paints applied to the floors of automobiles and chip-resistant paints applied to floors, gasoline tanks and the like.
【００３２】[0032]
【実施例】以下実施例、比較例をあげて本発明を説明す
る。なお実施例中の部及び％はすべて重量基準とする。The present invention will be described below with reference to examples and comparative examples. All parts and percentages in the examples are on a weight basis.
【００３３】合成例１〜４（樹脂エマルジョンの合成） 攪拌機を設置した５００ｍｌの４口フラスコにイオン交
換水１００部に乳化剤（表１に記載のとおりの部数）及
びポバール（表１に記載のとおりの部数）を溶解し、５
０℃〜８０℃に加熱して、酢酸ビニルあるいは酢酸ビニ
ルと共重合しうるエチレン性不飽和単量体の混合物（表
１記載のとおり）を重合開始剤と共に攪拌しながら４時
間かけて滴下し、重合させ、本発明の酢酸ビニル系樹脂
エマルジョンを得た。Synthesis Examples 1 to 4 (Synthesis of resin emulsion) In a 500 ml four-necked flask equipped with a stirrer, 100 parts of ion-exchanged water and emulsifier (number of parts as shown in Table 1) and poval (as shown in Table 1) ) And dissolve 5
The mixture is heated to 0 ° C. to 80 ° C., and vinyl acetate or a mixture of ethylenically unsaturated monomers copolymerizable with vinyl acetate (as shown in Table 1) is added dropwise over 4 hours while stirring with a polymerization initiator. The polymerization was carried out to obtain a vinyl acetate resin emulsion of the present invention.
【００３４】合成例５（樹脂エマルジョンの合成） 攪拌機を設置した５００ｍｌの４口フラスコにイオン交
換水１００部に乳化剤（表２の比較例１記載の部数）及
びポバール（表２の比較例１記載の部数）を溶解し、５
０℃〜８０℃に加熱して、酢酸ビニル（表２の比較例１
記載の部数）を重合開始剤と共に攪拌しながら４時間か
けて滴下し、重合させ、酢酸ビニル系樹脂エマルジョン
を得た。Synthesis Example 5 (Synthesis of resin emulsion) In a 500 ml four-necked flask equipped with a stirrer, 100 parts of ion-exchanged water was emulsified with emulsifier (parts described in Comparative Example 1 in Table 2) and poval (described in Comparative Example 1 in Table 2). ) And dissolve 5
By heating to 0 ° C to 80 ° C, vinyl acetate (Comparative Example 1 in Table 2)
The indicated number of parts) was added dropwise over 4 hours while stirring with the polymerization initiator, and the mixture was polymerized to obtain a vinyl acetate resin emulsion.
【００３５】合成例６（樹脂エマルジョンの合成） 攪拌機を設置した５００ｍｌの４口フラスコにイオン交
換水１００部に乳化剤（表２の比較例２記載の部数）を
溶解し、８０℃に加熱して、エチレン性不飽和単量体の
混合物（表２の比較例２記載の配合部数）を重合開始剤
と共に攪拌しながら４時間かけて滴下し、重合させ、合
成樹脂エマルジョンを得た。Synthesis Example 6 (Synthesis of Resin Emulsion) An emulsifier (parts described in Comparative Example 2 in Table 2) was dissolved in 100 parts of ion-exchanged water in a 500 ml four-necked flask equipped with a stirrer, and heated to 80 ° C. Then, a mixture of the ethylenically unsaturated monomers (the blending amount described in Comparative Example 2 in Table 2) was added dropwise over 4 hours while stirring with the polymerization initiator, and polymerized to obtain a synthetic resin emulsion.
【００３６】合成例７（樹脂エマルジョンの合成） 合成例６において、乳化剤及びエチレン性不飽和単量体
混合物を表２の比較例３のとおりに変更した以外は、合
成例６と同様に処理し、合成樹脂エマルジョンを得た。Synthesis Example 7 (Synthesis of Resin Emulsion) The procedure of Synthesis Example 6 was repeated except that the emulsifier and the ethylenically unsaturated monomer mixture were changed as shown in Comparative Example 3 in Table 2. Thus, a synthetic resin emulsion was obtained.
【００３７】合成例８（樹脂エマルジョンの合成） 攪拌機を設置した５００ｍｌの４口フラスコにイオン交
換水１００部に乳化剤（表２の比較例４記載の部数）及
びポバール（表２の比較例１記載の部数）を溶解し、５
０℃〜８０℃に加熱して、酢酸ビニル及び酢酸ビニルと
共重合しうるエチレン性不飽和単量体（表２の比較例４
記載の部数）を重合開始剤と共に攪拌しながら４時間か
けて滴下し、重合させ、酢酸ビニル系樹脂エマルジョン
を得た。Synthesis Example 8 (Synthesis of resin emulsion) In a 500 ml four-necked flask equipped with a stirrer, 100 parts of ion-exchanged water was emulsified with emulsifier (parts described in Comparative Example 4 in Table 2) and poval (described in Comparative Example 1 in Table 2). ) And dissolve 5
By heating to 0 ° C to 80 ° C, vinyl acetate and an ethylenically unsaturated monomer copolymerizable with vinyl acetate (Comparative Example 4 in Table 2)
The indicated number of parts) was added dropwise over 4 hours while stirring with the polymerization initiator, and the mixture was polymerized to obtain a vinyl acetate resin emulsion.
【００３８】合成例９（樹脂エマルジョンの合成） 合成例６において、エチレン性不飽和単量体混合物を表
２の比較例４のとおりに変更した以外は、合成例６と同
様に処理し、合成樹脂エマルジョンを得た。Synthesis Example 9 (Synthesis of Resin Emulsion) The procedure of Synthesis Example 6 was repeated, except that the ethylenically unsaturated monomer mixture was changed as in Comparative Example 4 in Table 2. A resin emulsion was obtained.
【００３９】実施例１ 上記合成例１で得られた酢酸ビニル系樹脂エマルジョン
を下記のとおり配合し、本発明の制振性水性塗料組成物
を得た。Example 1 The vinyl acetate resin emulsion obtained in Synthesis Example 1 was blended as described below to obtain a damping water-based coating composition of the present invention.
【００４０】 合成例１の酢酸ビニル系樹脂エマルジョン １００部 重質炭酸カルシウム ８５部 ノプコ ４４Ｃ １部 アロン Ａ−３０ ３部 ノプコ ８０３４Ｌ ０．５部 水 少量 ノプコ ４４Ｃ；サンノプコ(株)製分散剤 アロン Ａ−３０；東亜合成(株)製増粘剤 ノプコ ８０３４Ｌ；サンノプコ(株)製消泡剤 実施例２ 上記合成例２で得られた酢酸ビニル系樹脂エマルジョン
を下記のとおり配合し、本発明の制振性水性塗料組成物
を得た。The vinyl acetate resin emulsion of Synthesis Example 1 100 parts Heavy calcium carbonate 85 parts Nopco 44C 1 part Aron A-30 3 parts Nopco 8034L 0.5 parts Water Small amount Nopco 44C; Dispersant Aron A manufactured by San Nopco Co., Ltd. -30; a thickener Nopco 8034L manufactured by Toa Gosei Co., Ltd .; an antifoaming agent manufactured by San Nopco Co., Ltd. Example 2 The vinyl acetate resin emulsion obtained in Synthesis Example 2 was blended as follows, A vibratory water-based coating composition was obtained.
【００４１】 合成例２の酢酸ビニル系樹脂エマルジョン １００部 重質炭酸カルシウム １５０部 軽質炭酸カルシウム １００部 ノプコ ４４Ｃ １部 アロン Ａ−３０ ３部 ノプコ ８０３４Ｌ ０．５部 水 少量 実施例３及び実施例４ 上記合成例３及び４で得られた酢酸ビニル系樹脂エマル
ジョンを下記のとおり配合し、本発明の制振性水性塗料
組成物を得た。Vinyl acetate resin emulsion of Synthesis Example 2 100 parts Heavy calcium carbonate 150 parts Light calcium carbonate 100 parts Nopco 44C 1 part Aron A-30 3 parts Nopco 8034L 0.5 part Water A small amount Example 3 and Example 4 The vinyl acetate resin emulsions obtained in Synthesis Examples 3 and 4 were blended as described below to obtain a damping water-based coating composition of the present invention.
【００４２】 合成例３又は４の酢酸ビニル系樹脂エマルジョン１００部 重質炭酸カルシウム ５０部 タルク １００部 ノプコ ４４Ｃ １部 アロン Ａ−３０ ３部 ノプコ ８０３４Ｌ ０．５部 水 少量 比較例１ 上記合成例５で得られた樹脂エマルジョンを下記のとお
り配合し、制振性水性塗料組成物を得た。Synthetic Example 3 or 4 Vinyl acetate resin emulsion 100 parts Heavy calcium carbonate 50 parts Talc 100 parts Nopco 44C 1 part Aron A-30 3 parts Nopco 8034L 0.5 parts Water Small amount Comparative Example 1 Comparative Example 1 Was blended as described below to obtain a damping water-based coating composition.
【００４３】 合成例５の樹脂エマルジョン １００部 重質炭酸カルシウム ５０部 タルク １００部 ノプコ ４４Ｃ １部 アロン Ａ−３０ ３部 ノプコ ８０３４Ｌ ０．５部 水 少量 比較例２ 上記合成例６で得られた樹脂エマルジョンを下記のとお
り配合し、制振性水性塗料組成物を得た。Resin emulsion of Synthesis Example 5 100 parts Heavy calcium carbonate 50 parts Talc 100 parts Nopco 44C 1 part Aron A-30 3 parts Nopco 8034L 0.5 parts Water A small amount Comparative Example 2 Resin obtained in Synthesis Example 6 above The emulsion was blended as described below to obtain a damping water-based coating composition.
【００４４】 合成例６の樹脂エマルジョン １００部 重質炭酸カルシウム ８５部 ノプコ ４４Ｃ １部 アロン Ａ−３０ ３部 ノプコ ８０３４Ｌ ０．５部 水 少量 比較例３ 上記合成例７で得られた樹脂エマルジョンを下記のとお
り配合し、制振性水性塗料組成物を得た。Resin emulsion of Synthesis Example 6 100 parts Heavy calcium carbonate 85 parts Nopco 44C 1 part Aron A-30 3 parts Nopco 8034L 0.5 part Water Small amount Comparative Example 3 The resin emulsion obtained in the above Synthesis Example 7 was prepared as follows. To obtain a damping water-based coating composition.
【００４５】 合成例７の樹脂エマルジョン １００部 重質炭酸カルシウム １５０部 軽質炭酸カルシウム １００部 ノプコ ４４Ｃ １部 アロン Ａ−３０ ３部 ノプコ ８０３４Ｌ ０．５部 水 少量 比較例４ 上記合成例８で得られた樹脂エマルジョンを下記のとお
り配合し、制振性水性塗料組成物を得た。Resin emulsion of Synthesis Example 7 100 parts Heavy calcium carbonate 150 parts Light calcium carbonate 100 parts Nopco 44C 1 part Aron A-30 3 parts Nopco 8034L 0.5 part Water Small amount Comparative example 4 Comparative example 4 Obtained in the above Synthesis example 8 The resulting resin emulsion was blended as described below to obtain a damping water-based coating composition.
【００４６】 合成例８の樹脂エマルジョン １００部 重質炭酸カルシウム ３００部 ノプコ ４４Ｃ １部 アロン Ａ−３０ ３部 ノプコ ８０３４Ｌ ０．５部 水 少量 比較例５ 上記合成例９で得られた樹脂エマルジョンを下記のとお
り配合し、制振性水性塗料組成物を得た。Resin emulsion of Synthesis Example 8 100 parts Heavy calcium carbonate 300 parts Nopco 44C 1 part Aron A-30 3 parts Nopco 8034L 0.5 part Water Small amount Comparative Example 5 The resin emulsion obtained in the above Synthesis Example 9 was prepared as follows. To obtain a damping water-based coating composition.
【００４７】 合成例９の樹脂エマルジョン １００部 重質炭酸カルシウム ８５部 ノプコ ４４Ｃ １部 アロン Ａ−３０ ３部 ノプコ ８０３４Ｌ ０．５部 水 少量 ［試験方法］ ＜クリアフィルムの作成＞ガラス板上に乾燥膜厚が０．
５ｍｍになるようにエマルジョンを流延し、室温にて７
２時間乾燥後、フィルムをガラス板から剥離し、１２０
℃×２０分乾燥してクリアフィルムを得た。Resin emulsion of Synthesis Example 9 100 parts Heavy calcium carbonate 85 parts Nopco 44C 1 part Aron A-30 3 parts Nopco 8034L 0.5 parts Water A small amount [Test method] <Preparation of clear film> Dry on glass plate The film thickness is 0.
The emulsion was cast to a thickness of 5 mm,
After drying for 2 hours, the film was peeled off from the glass plate,
After drying at 20 ° C. for 20 minutes, a clear film was obtained.
【００４８】＜塗膜の作成＞上記の配合で得られた制振
性水性塗料組成物をガラス板上に乾燥膜厚が０．８ｍｍ
になるように塗布し、室温にて７２時間乾燥後、ガラス
板から剥離し、１４０℃×２０分乾燥して塗膜を得た。<Preparation of a coating film> The water-damping water-based coating composition obtained by the above-mentioned composition was coated on a glass plate with a dry film thickness of 0.8 mm.
And dried at room temperature for 72 hours, peeled from the glass plate, and dried at 140 ° C. for 20 minutes to obtain a coating film.
【００４９】＜塗装鋼板の製造＞０．８ｍｍの市販カチ
オン電着塗装鋼板に乾燥膜厚が２ｍｍになるように塗料
を塗布し、常温乾燥後、１４０℃×２０分の焼き付けを
２回行った。<Production of Coated Steel Sheet> A paint was applied to a commercially available 0.8 mm cationic electrodeposition coated steel sheet so as to have a dry film thickness of 2 mm, dried at room temperature, and baked twice at 140 ° C. for 20 minutes. .
【００５０】[0050]
【表１】 表中、tanδmax温度は、樹脂のＴｇを表す。表中の略号
はそれぞれ、下記のとおりの内容である。[Table 1] In the table, the tan δmax temperature represents the Tg of the resin. Abbreviations in the table are as follows.
【００５１】ＶＡＣ：酢酸ビニル ２ＥＨＡ：２エチル
ヘキシルアクリレート ＢＡ：ブチルアクリレート ＭＭＡ：メチルメタアクリ
レート Ｆ６８ ：プルロニックＦ６８（旭電化製オキシエチレ
ンオキシプロピレンブロックコポリマー） Ｎ−０８：ハイテノールＮ−０８（第一工業製薬製ポリ
オキシエチレンアルキル硫酸アンモニウム） ＰＶＡ−２１７：ポバール（株式会社クラレ製）VAC: vinyl acetate 2EHA: 2 ethylhexyl acrylate BA: butyl acrylate MMA: methyl methacrylate F68: Pluronic F68 (oxyethyleneoxypropylene block copolymer manufactured by Asahi Denka) N-08: Hytenol N-08 (Daiichi Kogyo Seiyaku) Polyoxyethylene alkyl ammonium sulfate) PVA-217: Poval (Kuraray Co., Ltd.)
【００５２】[0052]
【表２】 [Table 2]
【００５３】[0053]
【発明の効果】本発明の制振性水性塗料組成物は、塗
装、乾燥することにより、優れた制振性材料を自動車車
体室内に施工でき、従来のシート状成形物による防振方
法の諸欠点あるいは問題点を解決または改善することが
できる。According to the water-damping water-based paint composition of the present invention, an excellent vibration-damping material can be applied to the interior of a vehicle body by coating and drying. Shortcomings or problems can be solved or ameliorated.
Claims (4)
とを必須成分として含んでなる制振性水性塗料組成物に
おいて、酢酸ビニル系樹脂が、Ｔｇが１０〜５０℃であ
り、メタノール溶媒で測定したゲル分率が０〜３０％で
あり、損失角正接（ｔａｎδ）が１．５以上であること
を特徴とする制振性水性塗料組成物。1. A vibration-damping aqueous coating composition comprising a vinyl acetate resin emulsion and a filler as essential components, wherein the vinyl acetate resin has a Tg of 10 to 50 ° C. and is measured with a methanol solvent. A water-damping water-based coating composition having a gel fraction of 0 to 30% and a loss angle tangent (tan δ) of 1.5 or more.
ビニルと（メタ）アクリル酸エステル類とを主要成分と
して、乳化剤の存在下、水性媒体中で乳化重合して得ら
れる共重合体エマルジョンである請求項１記載の組成
物。2. The vinyl acetate resin emulsion is a copolymer emulsion obtained by emulsion polymerization of vinyl acetate and (meth) acrylates as main components in an aqueous medium in the presence of an emulsifier. Item 10. The composition according to Item 1.
子が、平均粒子径１５０〜１０００ｎｍであることを特
徴とする請求項１又は２記載の組成物。3. The composition according to claim 1, wherein the resin particles of the vinyl acetate resin emulsion have an average particle size of 150 to 1000 nm.
量分率で２０〜７０％であることを特徴とする請求項１
〜３のいずれか１項記載の組成物。4. The composition according to claim 1, wherein the filler is used in an amount of 20 to 70% by volume in the solid content of the composition.
The composition according to any one of claims 3 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01117497A JP3827031B2 (en) | 1997-01-24 | 1997-01-24 | Damping water-based paint composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01117497A JP3827031B2 (en) | 1997-01-24 | 1997-01-24 | Damping water-based paint composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10204370A true JPH10204370A (en) | 1998-08-04 |
| JP3827031B2 JP3827031B2 (en) | 2006-09-27 |
Family
ID=11770701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP01117497A Expired - Lifetime JP3827031B2 (en) | 1997-01-24 | 1997-01-24 | Damping water-based paint composition |
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| Country | Link |
|---|---|
| JP (1) | JP3827031B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6379440B1 (en) | 1995-10-23 | 2002-04-30 | Xaar Technology Limited | Ink jet printer dispersion inks |
| JP2004202403A (en) * | 2002-12-26 | 2004-07-22 | Nippon Tokushu Toryo Co Ltd | Application method for coating type dumping material and coating type dumping material |
| EP1484367A1 (en) * | 2002-02-04 | 2004-12-08 | Aisin Kako Kabushiki Kaisha | An aqueous paint composition of baking-drying type |
| KR100804927B1 (en) | 2005-07-01 | 2008-02-20 | 아이신카코 가부시키가이샤 | Water-based coated-type vibration damping material |
| US7368494B2 (en) | 2001-10-19 | 2008-05-06 | Nippon Shokubai Co., Ltd. | Emulsion for damping materials and chipping-resistant materials |
| US7893149B2 (en) | 2006-12-20 | 2011-02-22 | Rohm And Haas Company | Liquid-applied sound dampening |
| US7893151B2 (en) | 2007-11-08 | 2011-02-22 | Rohm And Haas Company | Liquid-applied sound damping |
-
1997
- 1997-01-24 JP JP01117497A patent/JP3827031B2/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6379440B1 (en) | 1995-10-23 | 2002-04-30 | Xaar Technology Limited | Ink jet printer dispersion inks |
| US7368494B2 (en) | 2001-10-19 | 2008-05-06 | Nippon Shokubai Co., Ltd. | Emulsion for damping materials and chipping-resistant materials |
| EP1484367A1 (en) * | 2002-02-04 | 2004-12-08 | Aisin Kako Kabushiki Kaisha | An aqueous paint composition of baking-drying type |
| EP1484367A4 (en) * | 2002-02-04 | 2005-12-28 | Aishin Kako Kk | An aqueous paint composition of baking-drying type |
| US7795338B2 (en) | 2002-02-04 | 2010-09-14 | Aisin Kako Kabushiki Kaisha | Baking-drying water damping paint composition |
| JP2004202403A (en) * | 2002-12-26 | 2004-07-22 | Nippon Tokushu Toryo Co Ltd | Application method for coating type dumping material and coating type dumping material |
| KR100804927B1 (en) | 2005-07-01 | 2008-02-20 | 아이신카코 가부시키가이샤 | Water-based coated-type vibration damping material |
| US7893149B2 (en) | 2006-12-20 | 2011-02-22 | Rohm And Haas Company | Liquid-applied sound dampening |
| US7893151B2 (en) | 2007-11-08 | 2011-02-22 | Rohm And Haas Company | Liquid-applied sound damping |
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| Publication number | Publication date |
|---|---|
| JP3827031B2 (en) | 2006-09-27 |
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