JPH064816B2 - Resin composition for paint - Google Patents
Resin composition for paintInfo
- Publication number
- JPH064816B2 JPH064816B2 JP55185077A JP18507780A JPH064816B2 JP H064816 B2 JPH064816 B2 JP H064816B2 JP 55185077 A JP55185077 A JP 55185077A JP 18507780 A JP18507780 A JP 18507780A JP H064816 B2 JPH064816 B2 JP H064816B2
- Authority
- JP
- Japan
- Prior art keywords
- parts
- acid
- coating
- weight
- polyester resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Description
【発明の詳細な説明】 本発明は、１００μ以上の厚膜塗装を行なっても、ワ
キ、ハジキのない塗膜の得られる塗装作業性に優れたポ
リエステル樹脂とグリシジル基含有アクリルポリマーと
からなる焼付硬化型塗料用樹脂組成物に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention is a baking process comprising a polyester resin and a glycidyl group-containing acrylic polymer, which are excellent in coating workability and are capable of obtaining a coating film that is free from cracks and cissing even when a thick film of 100 μm or more is applied. The present invention relates to a curable coating resin composition.
近年焼付硬化型塗料は、耐久性の向上及び高級仕上げな
どのため、塗膜の厚膜化への指向が強まっている。In recent years, bake-curable paints have become more and more oriented toward thicker coating films because of improved durability and high-quality finish.
例えば、現在のメラミンホルムアルデヒド樹脂を架橋剤
とする焼付硬化型塗料では１回塗りで３０〜４０μ程度
の膜厚が限界で、これでは自動車の場合、走行中に砂利
あるいは北米、カナダ等で道路の凍結を防止するため散
布する砂塩等の撥ね返り、衝突による塗膜のワレ、ハガ
レによる腐食、即ち耐チッピング性が不十分である。ま
た、本発明者らの研究によれば耐チッピング性は膜厚の
３乗に比例することがわかっている。しかし、無理に１
回の塗装で厚膜化をするとワキ、タレ、ハジキなどが発
生し、塗面の平滑性が悪く、各種の添加剤、助剤をもっ
てしても４０〜５０μが限界であった。勿論塗装回数を
２回、３回とし、予備加熱等の複雑な工程を組み入れる
ことで、更に厚膜化は可能であるが、生産性及び省エネ
ルギーに反し、現実性に欠けている。For example, the current bake-curable paint using a melamine formaldehyde resin as a cross-linking agent has a limit of a film thickness of about 30 to 40 μ in a single application. In the case of an automobile, this means that gravel while driving or roads in North America, Canada, etc. In order to prevent freezing, splashing of sand salts or the like scattered, corrosion of the coating film due to collision, corrosion due to peeling, that is, chipping resistance is insufficient. Further, according to the research conducted by the present inventors, it is known that the chipping resistance is proportional to the cube of the film thickness. However, forcibly 1
When a thick film is formed by coating once, cracks, sagging, cissing, etc. occur, and the smoothness of the coated surface is poor. Even with various additives and auxiliaries, the limit is 40 to 50 μm. Of course, it is possible to further increase the thickness of the film by setting the number of coatings to 2 or 3 and incorporating a complicated process such as preheating, but this is contrary to productivity and energy saving and lacks in reality.
また、メラミンホルムアルデヒド樹脂を架橋剤とする焼
付硬化型塗料を自動車の中塗り又は上塗りに使用する場
合、下塗りとして足廻り等を腐食から守るため電着塗装
が行なわれており、この場合、現在、耐水性、耐食性の
向上の追求からアニオン電着塗料からカチオン電着塗料
へ移行しつつあるが、焼付硬化型塗料はこのカチオン電
着塗膜への密着性が不十分である。In addition, when using a bake-curable coating with a melamine formaldehyde resin as a cross-linking agent for the middle coating or top coating of automobiles, electrodeposition coating is performed as a base coating to protect the underbody from corrosion, and in this case, In order to improve water resistance and corrosion resistance, anion electrodeposition coatings are being changed to cationic electrodeposition coatings, but bake-curable coatings have insufficient adhesion to this cationic electrodeposition coating.
一方、高温短時間焼付硬化型塗料で代表されるプレコー
トメタル用塗料に於ても折り曲げ加工性、耐食性の向
上、あるいは高級仕上げのため厚膜化が可能なプライマ
ーが望まれている。On the other hand, there is a demand for a primer that can be applied to a precoat metal paint represented by a high-temperature short-time bake-curable paint to improve the bending workability and corrosion resistance, or to form a thick film for high-quality finishing.
本発明者らは、かかる欠点を改善するため、１回の塗装
で１００〜３００μの厚膜塗装が可能で、カチオン電着
塗膜への密着性が良く硬化性に優れ、ワキ、ハジキがな
く、耐チッピング性に優れた塗料を得るべく鋭意研究し
た結果、特定のポリエステル樹脂と硬化剤として（β−
メチル）グリシジル（メタ）アクリレートを２０〜１０
０重量％重合して得られる特定の分子量及び粘度を有す
る重合物を用いることにより相溶性に優れ、厚膜塗装を
しても、ワキ、ハジキの発生がなく、得られる硬化塗膜
が、耐食性、耐湿性、耐薬品性、折り曲げ加工性及び耐
チッピング性に優れた塗料用樹脂組成物を見出し、本発
明を完成するに至った。In order to improve such a defect, the inventors of the present invention can apply a thick film of 100 to 300 μ in a single coating, have good adhesion to a cationic electrodeposition coating film, excellent curability, and are free from cracking and cissing. As a result of earnest research to obtain a coating having excellent chipping resistance, as a specific polyester resin and a curing agent (β-
Methyl) glycidyl (meth) acrylate 20 to 10
Excellent compatibility by using a polymer having a specific molecular weight and viscosity obtained by polymerizing 0% by weight. Even if a thick film is applied, no cracking or cissing occurs, and the obtained cured coating film has corrosion resistance. The inventors have found a resin composition for a coating having excellent moisture resistance, chemical resistance, bending workability and chipping resistance, and completed the present invention.
即ち、本発明は、 (A)酸価２０〜３００、分子量８００〜１０，０００の
ポリエステル樹脂６０〜９５重量部（以下部と略す） (B)（β−メチル）グリシジル（メタ）アクリレート２
０〜１００重量％と他のビニルモノマー０〜８０重量％
から得られる分子量３００〜３，０００、２５℃に於け
る粘度が１，０００ポイズ以下の重合物５〜４０部から
成り、(A)と(B)の合計を１００重量部とすることを特徴
とする厚膜可能な塗料用樹脂組成物を提供する。That is, the present invention comprises (A) an acid value of 20 to 300 and a molecular weight of 800 to 10,000 of a polyester resin 60 to 95 parts by weight (hereinafter abbreviated as "part") (B) (β-methyl) glycidyl (meth) acrylate 2
0-100% by weight and other vinyl monomers 0-80% by weight
The polymer having a molecular weight of 300 to 3,000 and a viscosity at 25 ° C. of 1,000 poise or less is composed of 5 to 40 parts, and the total amount of (A) and (B) is 100 parts by weight. The present invention provides a resin composition for coatings capable of forming a thick film.
本発明で用いられる(A)ポリエステル樹脂とは酸価が２
０〜３００（mgＫＯＨ／ｇ）好ましくは３０〜１５０で
あり、分子量が８００〜１０，０００、好ましくは１，
０００〜５，０００（数平均分子量を意味する）のもの
が使用される。また、該ポリエステル樹脂としては、線
状構造あるいは分岐構造のどちらを使用してもよい。The acid value of the (A) polyester resin used in the present invention is 2
0-300 (mgKOH / g) preferably 30-150, and have a molecular weight of 800-10,000, preferably 1,
Those of 000 to 5,000 (meaning the number average molecular weight) are used. The polyester resin may have either a linear structure or a branched structure.
かかるポリエステル樹脂の製造法については特に制限は
ないが、酸成分とアルコール成分のエステル化反応によ
る周知の方法がそのまま適用出来る。また、原料の酸成
分及びアルコール成分は各々周知の二塩基酸、三塩基以
上の多塩基酸ならびに二価アルコール類および三価以上
の多価アルコール類が利用できる。更に大豆油、ヤシ
油、（脱）ヒマシ油、トール油、サフラワ油、又はこれ
らの脂肪酸を一部使用することもできる。酸成分として
代表的なものを挙げれば、テレフタル酸、イソフタル
酸、フタル酸、メチルテレフタル酸、トリメリット酸、
ピロメリット酸およびそれらの無水物；あるいはアジピ
ン酸、セバシン酸、コハク酸、マレイン酸、フマル酸、
テトラヒドロフタル酸、メチル−テトラヒドロフタル
酸、ヘキサヒドロフタル酸、メチル−ヘキサヒドロフタ
ル酸およびそれらの無水物などであり、またアルコール
成分として代表的なものを挙げれば、（ジ）エチレング
リコール、（ジ）プロピレングリコール、１，３−ブタ
ンジオール、１，４−ブタンジオール、１，６−ヘキサ
ンジオール、ネオペンチルグリコール、イソペンチルグ
リコール、、ビスヒドロキシエチルテレフタレート、水
添ビスフェノールＡ、水添ビスフェノールＡのエチレン
オキサイド付加物、水添ビスフェノールＡのプロピレン
オキサイド付加物、トリメチロールエタン、トリメチロ
ールプロパン、グリセリンペンタエリスリトール及び
２，２，４−トリメチルペンタン１，３−ジオール１，
４−シクロヘキサンジメタノールなどであり、モノエポ
キシ化合物、例えばバーサチック酸グリシジルエステ
ル、α−オレフィンオキサイドなどもアルコール成分の
一部として使用できる。The method for producing the polyester resin is not particularly limited, but a known method by esterification reaction of an acid component and an alcohol component can be directly applied. As the acid component and the alcohol component of the raw material, well-known dibasic acids, polybasic acids having three or more bases, dihydric alcohols and polyhydric alcohols having three or more valences can be used. Further, soybean oil, coconut oil, (de) castor oil, tall oil, safflower oil, or fatty acids thereof may be partially used. Typical examples of the acid component include terephthalic acid, isophthalic acid, phthalic acid, methylterephthalic acid, trimellitic acid,
Pyromellitic acid and their anhydrides; or adipic acid, sebacic acid, succinic acid, maleic acid, fumaric acid,
Tetrahydrophthalic acid, methyl-tetrahydrophthalic acid, hexahydrophthalic acid, methyl-hexahydrophthalic acid and their anhydrides, and typical alcohol components include (di) ethylene glycol and (di ) Propylene glycol, 1,3-butanediol, 1,4-butanediol, 1,6-hexanediol, neopentyl glycol, isopentyl glycol, bishydroxyethyl terephthalate, hydrogenated bisphenol A, ethylene of hydrogenated bisphenol A Oxide adduct, propylene oxide adduct of hydrogenated bisphenol A, trimethylolethane, trimethylolpropane, glycerin pentaerythritol and 2,2,4-trimethylpentane 1,3-diol 1,
4-Cyclohexanedimethanol and the like, and monoepoxy compounds such as versatic acid glycidyl ester and α-olefin oxide can also be used as a part of the alcohol component.
本発明で使用される(B)（β−メチル）グリシジル（メ
タ）アクリレートと他のビニル単量体とから得られる重
合物（以下グリシジル基含有重合物と称す）は、分子量
が３００〜３，０００、好ましくは５００〜２，０００
のものであり、２５℃に於ける粘度が１，０００ポイズ
以下、好ましくは５００ポイズ以下の常温で半流動性を
有するものであり、反応成分として（β−メチル）グリ
シジル（メタ）アクリレート２０〜１００重量％、好ま
しくは４０〜１００重量％及び他のビニル単量体０〜８
０重量％、好ましくは０〜６０重量％から得られるもの
である。The polymer obtained from (B) (β-methyl) glycidyl (meth) acrylate and another vinyl monomer used in the present invention (hereinafter referred to as a glycidyl group-containing polymer) has a molecular weight of 300 to 3, 000, preferably 500-2,000
It has a viscosity at 25 ° C. of 1,000 poises or less, preferably 500 poises or less, and is semi-fluid at room temperature, and has (β-methyl) glycidyl (meth) acrylate 20 to 20 as a reaction component. 100% by weight, preferably 40-100% by weight and other vinyl monomers 0-8
It is obtained from 0% by weight, preferably 0 to 60% by weight.
かかるグリシジル基含有重合物の分子量が３００よりも
小さいと得られる塗膜の硬度、耐食性、耐チッピング性
が不十分であり、又焼付時に発煙する欠点がある。又、
その分子量が３，０００より大きいとポリエステル樹脂
との相溶性が悪くなり、得られる塗膜はハジキが発生
し、鮮映性が悪くなるため適さない。また、反応成分で
ある（β−メチル）グリシジル（メタ）アクリレートの
量が２０重量％よりも少ないとポリエステル樹脂との反
応が不十分となるため目的とする良好な硬化塗膜を与え
ることができない。If the molecular weight of the glycidyl group-containing polymer is less than 300, the resulting coating film has insufficient hardness, corrosion resistance, and chipping resistance, and has the drawback of smoking during baking. or,
If the molecular weight is more than 3,000, the compatibility with the polyester resin is deteriorated, and the resulting coating film is repelled and the image clarity is deteriorated, which is not suitable. Further, if the amount of (β-methyl) glycidyl (meth) acrylate as a reaction component is less than 20% by weight, the reaction with the polyester resin will be insufficient and the desired cured coating film cannot be obtained. .
本発明のグリシジル基含有重合物に使用される（β−メ
チル）グリシジル（メタ）アクリレートはグリシジルア
クリレート、グリシジルメタクリルレート、β−メチル
グリシジルアクリレート、β−メチルグリシジルメタク
リレートであり、特にβ−メチルグリシジルメタクリレ
ートが好ましい。また、他のビニル単量体としてはスチ
レン、（メタ）アクリル酸エステル、フマル酸ジエステ
ル、アクリロニトリル、アクリルアミド等の単量体が挙
げられる。The (β-methyl) glycidyl (meth) acrylate used in the glycidyl group-containing polymer of the present invention is glycidyl acrylate, glycidyl methacrylate, β-methylglycidyl acrylate, β-methylglycidyl methacrylate, and particularly β-methylglycidyl methacrylate. Is preferred. Examples of other vinyl monomers include monomers such as styrene, (meth) acrylic acid ester, fumaric acid diester, acrylonitrile and acrylamide.
かかる重合物の製造法については、特に制限はなく周知
の方法がそのまま適用できるが、好ましくは溶液重合後
必要により脱溶剤する方法が分子量調整等から好適であ
る。また、本発明組成物に顔料、その他の充填剤（タル
ク、シリカゲル、炭酸カルシウム、沈降性硫酸バリウム
など）、流動調整剤、場合によっては触媒その他の添加
剤を配合し、通常の方法にて塗料化する。塗装法として
は、エアレス、ミニベル等公知の方法が利用できる。The method for producing such a polymer is not particularly limited, and a known method can be applied as it is. However, a method of removing the solvent after solution polymerization if necessary is preferable from the viewpoint of adjusting the molecular weight and the like. Further, a pigment, other fillers (talc, silica gel, calcium carbonate, precipitated barium sulfate, etc.), a flow regulator, and in some cases a catalyst and other additives are blended with the composition of the present invention, and the composition is coated by a usual method. Turn into. As the coating method, known methods such as airless and mini bell can be used.
本発明の組成物は、１００μ以上の厚膜塗装を行なって
もワキ、ハジキのない塗膜を与え、塗装作業性が良く、
得られた塗膜は耐食性、耐湿性、耐薬品性、折り曲げ加
工性及び耐チッピング性に優れているのである。INDUSTRIAL APPLICABILITY The composition of the present invention gives a coating film free from craters and craters even when a thick film coating of 100 μ or more is applied, and the coating workability is good,
The obtained coating film is excellent in corrosion resistance, moisture resistance, chemical resistance, bending workability and chipping resistance.
本発明の組成物は厚膜塗装を要する分野に有効で特に自
動車の下塗り用、プレコートメタル用塗料として有用で
ある。The composition of the present invention is effective in fields requiring thick film coating, and is particularly useful as a paint for undercoating of automobiles and precoat metal.
以下に本発明の実施例に従って説明する。An example of the present invention will be described below.
ポリエステル樹脂Ｉの合成 テレフタル酸６０重量部（以下部と略）、イソフタル酸
６０部、アジピン酸２４７部、エチレングリコール４４
部、ネオペンチルグリコール７４部、１，６−ヘキサン
ジオール８２部、トリメチロールプロパン１５部および
ジブチルチンオキサイド０．５部を反応容器に仕込み、
Ｎ2ガス気流下で６時間内に２２０℃に昇温し、同温度
で４時間反応させた。次いで脱水を促進するため、キシ
ロール１５部を加え環流下２２０℃に温度を保持しつつ
反応を続け、酸価３５分子量約３，４００のポリエステ
ル樹脂を得た。このポリエステル樹脂をソルベツソ１０
０／ブチルセロソルブ＝80/20の混合溶剤にて不揮発分
を６０％とし、ガードナー粘度がＵ−Ｖのポリエステル
樹脂Ｉを得た。Synthesis of Polyester Resin I 60 parts by weight of terephthalic acid (hereinafter abbreviated as "parts"), 60 parts of isophthalic acid, 247 parts of adipic acid, 44 ethylene glycol
Parts, neopentyl glycol 74 parts, 1,6-hexanediol 82 parts, trimethylolpropane 15 parts and dibutyltin oxide 0.5 parts were charged into a reaction vessel,
The temperature was raised to 220 ° C. within 6 hours under N 2 gas flow, and the reaction was carried out at the same temperature for 4 hours. Next, in order to accelerate dehydration, 15 parts of xylol was added and the reaction was continued while maintaining the temperature at 220 ° C. under reflux to obtain a polyester resin having an acid value of 35 and a molecular weight of about 3,400. Solve this polyester resin 10
A polyester resin I having a Gardner viscosity of UV was obtained by adjusting the nonvolatile content to 60% with a mixed solvent of 0 / butyl cellosolve = 80/20.
ポリエステル樹脂IIの合成 イソフタル酸473.8部、アジピン酸153.0部、ネオペンチ
ルグリコール３４２部、１，６−ヘキサンジオール123.
7部、ジブチルチンオキサイド１．０部を加え、Ｎ2ガス
気流下で６時間内に２２０℃に昇温し、同温度で更に６
時間反応後１８０℃に降温して、無水トリメリット酸１
３０部を加え、分子量約２２００、酸価１０５のポリエ
ステル樹脂にソルベツソ１５０／ブチルセロソルブ＝80
/20で不揮発分を６０％にしてガードナー粘度がＶのポ
リエステル樹脂IIを得た。Synthesis of polyester resin II Isophthalic acid 473.8 parts, adipic acid 153.0 parts, neopentyl glycol 342 parts, 1,6-hexanediol 123.
7 parts and 1.0 part of dibutyltin oxide were added, the temperature was raised to 220 ° C. within 6 hours under N 2 gas flow, and further 6 at the same temperature.
After reacting for an hour, the temperature is lowered to 180 ° C and trimellitic anhydride
30 parts were added, and sorbetso 150 / butyl cellosolve = 80 was added to polyester resin having a molecular weight of about 2200 and an acid value of 105.
At / 20, the nonvolatile content was adjusted to 60% to obtain a polyester resin II having a Gardner viscosity of V.
ポリエステル樹脂IIIの合成 イソフタル酸267.2部、無水フタル酸158.8部、脱水ヒマ
シ油脂肪酸９６部、アジピン酸153.0部、ネオペンチル
グリコール320.7部、１，６−ヘキサンジオール213.7
部、ジブチルチンオキサイド1.0部を加え、Ｎ2ガス気流
下で６時間反応後１６０℃に降温して、無水トリメリッ
ト酸６９部を加え分子量約３，０００、酸価３５の超短
油ポリエステル樹脂にソルベツソ１５０／ブチルセロソ
ルブ＝85/25で不揮発分６０％にして、ガードナー粘度
がＴのポリエステル樹脂IIIを得た。Synthesis of polyester resin III Isophthalic acid 267.2 parts, phthalic anhydride 158.8 parts, dehydrated castor oil fatty acid 96 parts, adipic acid 153.0 parts, neopentyl glycol 320.7 parts, 1,6-hexanediol 213.7
Part, dibutyltin oxide 1.0 part, reacted under N 2 gas flow for 6 hours and then cooled to 160 ° C., added 69 parts trimellitic anhydride, and an ultrashort oil polyester resin having a molecular weight of about 3,000 and an acid value of 35. Then, sorbetso 150 / butyl cellosolve = 85/25 was used to adjust the nonvolatile content to 60% to obtain a polyester resin III having a Gardner viscosity of T.
重合物Ｉの合成 β−メチルグリシジルメタアクリレート １００部 tert−ブチルパーベンゾエート １部 クメンハイドロパーオキサイド ０．５部 の混合物を加圧した１５０℃のキシレン１００部に２時
間滴下し重合後、キシレンを除去して分子量１，５０
０、粘度１５０ポイズの重合物Ｉを得た。Synthesis of Polymer I β-Methylglycidylmethacrylate 100 parts tert-butylperbenzoate 1 part Cumene hydroperoxide 0.5 part A mixture of 2 parts was added dropwise to 100 parts of pressurized xylene at 150 ° C. for 2 hours, and then xylene was added. Molecular weight removed by 1,50
Polymer I having a viscosity of 0 and a viscosity of 150 poise was obtained.
重合物IIの合成 β−メチルグリシジルメタアクリレート ５０部 セロソルブメタアクリレート ５０
部 tert−ブチルパーベンゾエート ２部 の混合物を加圧した１５５℃のキシレン１００部に２時
間滴下し重合後、キシレンを除去し分子量１，３００、
粘度９０ポイズの重合物IIを得た。Synthesis of polymer II β-methylglycidyl methacrylate 50 parts Cellosolve methacrylate 50
Parts tert-butyl perbenzoate 2 parts A mixture of 2 parts was added dropwise to 100 parts of pressurized 155 ° C. xylene for 2 hours, and after polymerization, xylene was removed to obtain a molecular weight of 1,300,
Polymer II having a viscosity of 90 poise was obtained.
実施例１ ポリエステル樹脂Ｉを１５０重量部と重合物Ｉ１３部、
酸化チタン１００部、及びキシロール５６部を加え三本
ロールで３回練肉し、塗料化し軟鋼板にドライ膜厚で２
００μになるようエアレス塗装機にて塗装し１５０℃で
３０分焼付した。硬化塗膜は、ワキ、ハジキがなく硬度
が高く平滑性に優れていた。塗膜性能試験結果を表−１
に示す。Example 1 150 parts by weight of polyester resin I and 13 parts of polymer I,
100 parts of titanium oxide and 56 parts of xylol are added, and the mixture is kneaded 3 times with a triple roll to form a paint, and a dry steel film with a dry film thickness of 2
It was coated with an airless coating machine so as to have a size of 00 μm, and baked at 150 ° C. for 30 minutes. The cured coating film was free from cracks and cissing and had high hardness and excellent smoothness. The coating film performance test results are shown in Table-1.
Shown in.
実施例２ ポリエステル樹脂Ｉ１３３部、重合物II２０部を用いた
以外は実施例１と同様にして塗料化し、塗装化し、ハジ
キ、ワキのない平滑性に優れた塗膜をえた。塗膜性能試
験結果を表−１に示した。Example 2 A coating film excellent in smoothness without cissing or cracking was obtained by converting to a paint in the same manner as in Example 1 except that 133 parts of polyester resin I and 20 parts of polymer II were used. The coating film performance test results are shown in Table 1.
実施例３ ポリエステル樹脂IIＩ３３部、重合物Ｉ３５部を用いた
以外は実施例１と同様にして塗膜をえた。塗膜性能試験
結果を表−１に示した。Example 3 A coating film was obtained in the same manner as in Example 1 except that 33 parts of polyester resin III and 35 parts of polymer I were used. The coating film performance test results are shown in Table 1.
実施例４ 実施例Ｉのポリエステル樹脂Ｉをポリエステル樹脂III
に変えた以外は実施例１と同様に塗料化、塗装、焼付し
て得られた塗膜は良好な平滑性を有していた。塗膜性能
試験結果を表−１に示した。Example 4 Polyester resin I of Example I was replaced with polyester resin III
The coating film obtained by forming a coating material, coating and baking in the same manner as in Example 1 except that the above was changed to had good smoothness. The coating film performance test results are shown in Table 1.
実施例５ 実施例１で得られた塗料組成物をボンデ＃３７処理亜鉛
鉄板にバーコーターにて３０μになるよう塗装し２５０
℃／４０秒焼付した塗膜はワキがなく平滑で、その物性
は強靱で折り曲げ加工性に優れていた。塗膜性能試験結
果を表−１に示す。Example 5 The coating composition obtained in Example 1 was coated on a Bonde # 37-treated zinc iron plate with a bar coater to a thickness of 30 μm.
The coating film baked at 40 ° C./40 seconds was smooth without any cracks, its physical properties were tough, and its bending workability was excellent. The coating film performance test results are shown in Table 1.
比較例１ 実施例の重合物に替え グリシジルメタアクリレート ２５部 ブチルアクリレート ２５部 メチルメタアクリレート ５０部 から成る分子量６，０００、粘度５００ポイズ以上の重
合物を用いた以外は全く同様にして塗膜を得た。その塗
膜は光沢がなく平滑性が悪く、物性が著しく不良であっ
た。塗膜性能試験結果を表−１に示す。Comparative Example 1 A coating film was prepared in the same manner except that a polymer having a molecular weight of 6,000 and a viscosity of 500 poise or more consisting of glycidyl methacrylate 25 parts butyl acrylate 25 parts methyl methacrylate 50 parts was used instead of the polymer of the example. Obtained. The coating film was not glossy and had poor smoothness, and the physical properties were extremely poor. The coating film performance test results are shown in Table 1.
Claims (1)
０，０００のポリエステル樹脂６０〜９５重量部及び (B)（β−メチル）グリシジル（メタ）アクリレート２
０〜１００重量％と他のビニル単量体０〜８０重量％と
から得られる分子量３００〜３，０００で粘度が１，０
００ポイズ以下の重合物５〜４０重量部 からなり、(A)と(B)の合計を１００重量部とすることを
特徴とする塗料用樹脂組成物。1. (A) Acid value 20 to 300, molecular weight 800 to 1
60 to 95 parts by weight of 10,000 polyester resin and (B) (β-methyl) glycidyl (meth) acrylate 2
0 to 100% by weight and 0 to 80% by weight of other vinyl monomers, the molecular weight is 300 to 3,000 and the viscosity is 1,0.
A resin composition for coatings, which comprises 5 to 40 parts by weight of a polymer having a poise of 00 or less, and the total amount of (A) and (B) is 100 parts by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55185077A JPH064816B2 (en) | 1980-12-27 | 1980-12-27 | Resin composition for paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55185077A JPH064816B2 (en) | 1980-12-27 | 1980-12-27 | Resin composition for paint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57109864A JPS57109864A (en) | 1982-07-08 |
| JPH064816B2 true JPH064816B2 (en) | 1994-01-19 |
Family
ID=16164409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55185077A Expired - Lifetime JPH064816B2 (en) | 1980-12-27 | 1980-12-27 | Resin composition for paint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH064816B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106661212A (en) * | 2014-07-25 | 2017-05-10 | 帝斯曼知识产权资产管理有限公司 | Matt powder coatings |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITUD20040206A1 (en) * | 2004-11-05 | 2005-02-05 | Eurocolori Srl | FORMULATIONS FOR PASTE DYES INCLUDING A MIXTURE OF ADDITIVES, MIXTURE OF ADDITIVES FOR PAINTS AND ITS PREPARATION PROCEDURE |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51132222A (en) * | 1975-05-14 | 1976-11-17 | Nippon Oil & Fats Co Ltd | Thermosetting coating composition |
| JPS5232045A (en) * | 1975-09-08 | 1977-03-10 | Toray Ind Inc | Resin composition |
-
1980
- 1980-12-27 JP JP55185077A patent/JPH064816B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51132222A (en) * | 1975-05-14 | 1976-11-17 | Nippon Oil & Fats Co Ltd | Thermosetting coating composition |
| JPS5232045A (en) * | 1975-09-08 | 1977-03-10 | Toray Ind Inc | Resin composition |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106661212A (en) * | 2014-07-25 | 2017-05-10 | 帝斯曼知识产权资产管理有限公司 | Matt powder coatings |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57109864A (en) | 1982-07-08 |
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