JPS63170475A - Clear coating composition for topcoating - Google Patents
Clear coating composition for topcoatingInfo
- Publication number
- JPS63170475A JPS63170475A JP49487A JP49487A JPS63170475A JP S63170475 A JPS63170475 A JP S63170475A JP 49487 A JP49487 A JP 49487A JP 49487 A JP49487 A JP 49487A JP S63170475 A JPS63170475 A JP S63170475A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- parts
- resin
- monomer
- top coat
- 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
- 239000008199 coating composition Substances 0.000 title description 3
- 239000000203 mixture Substances 0.000 claims abstract description 27
- 239000003973 paint Substances 0.000 claims abstract description 22
- 239000000178 monomer Substances 0.000 claims abstract description 17
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 14
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 14
- 229920005989 resin Polymers 0.000 claims abstract description 12
- 239000011347 resin Substances 0.000 claims abstract description 12
- 229920003180 amino resin Polymers 0.000 claims abstract description 11
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims abstract description 8
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 5
- 239000000126 substance Substances 0.000 claims description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 2
- 238000007334 copolymerization reaction Methods 0.000 abstract description 3
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 abstract 2
- 238000013329 compounding Methods 0.000 abstract 2
- 238000012360 testing method Methods 0.000 description 13
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 12
- 238000010438 heat treatment Methods 0.000 description 7
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 239000000049 pigment Substances 0.000 description 5
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 239000008096 xylene Substances 0.000 description 4
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 3
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000003505 polymerization initiator Substances 0.000 description 3
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 210000003298 dental enamel Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 150000002734 metacrylic acid derivatives Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000012046 mixed solvent Substances 0.000 description 2
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- SVONRAPFKPVNKG-UHFFFAOYSA-N 2-ethoxyethyl acetate Chemical compound CCOCCOC(C)=O SVONRAPFKPVNKG-UHFFFAOYSA-N 0.000 description 1
- OELQSSWXRGADDE-UHFFFAOYSA-N 2-methylprop-2-eneperoxoic acid Chemical compound CC(=C)C(=O)OO OELQSSWXRGADDE-UHFFFAOYSA-N 0.000 description 1
- FRIBMENBGGCKPD-UHFFFAOYSA-N 3-(2,3-dimethoxyphenyl)prop-2-enal Chemical compound COC1=CC=CC(C=CC=O)=C1OC FRIBMENBGGCKPD-UHFFFAOYSA-N 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- OIWOHHBRDFKZNC-UHFFFAOYSA-N cyclohexyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC1CCCCC1 OIWOHHBRDFKZNC-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- LDLDYFCCDKENPD-UHFFFAOYSA-N ethenylcyclohexane Chemical compound C=CC1CCCCC1 LDLDYFCCDKENPD-UHFFFAOYSA-N 0.000 description 1
- -1 for example Substances 0.000 description 1
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 1
- 229910000165 zinc phosphate Inorganic materials 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Paints Or Removers (AREA)
Abstract
Description
【発明の詳細な説明】
(産業上の利用分野)
この発明は2コート型メタリツク系塗料のトップコート
クリア塗料組成物に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) This invention relates to a top coat clear paint composition for a two-coat type metallic paint.
(従来の技術)
一般に、2コート型メタリツク塗料の塗装は、樹脂、ア
ルミ顔料および有色顔料より成るベースコートを塗装し
、そのまままたは乾燥−焼付した後、透明なトップコー
トクリア塗料を塗装することにより行なわれている。(Prior art) In general, two-coat metallic paints are applied by applying a base coat consisting of resin, aluminum pigment, and colored pigment, and then applying a transparent top coat clear paint either as is or after drying and baking. It is.
従来用いられているトップコートクリア塗料組成物とし
ては、例えばメチル、エチル、ブチル、オクチルなどの
アルキル化アクリレートおよびアルキル化メタクリレー
トや、官能基を持つアクリル酸、メタクリル酸およびこ
れらの誘導体と、アクリロニトリル、アクリルアミド、
スチレンなどの二重結合を有する単量体とを重合して得
られたモ1(脂にアミノ樹脂またはイソシアネート基含
有樹脂を混合したものがある(特開昭59−14287
1号参照)。Conventionally used top coat clear paint compositions include, for example, alkylated acrylates and alkylated methacrylates such as methyl, ethyl, butyl, and octyl, acrylic acid, methacrylic acid, and derivatives thereof having functional groups, acrylonitrile, acrylamide,
Monomers containing double bonds, such as styrene, are mixed with monomers such as amino resins or isocyanate group-containing resins.
(See No. 1).
(発明が解決しようとする問題点)
しかしながら、上述した組成の従来のトップコートクリ
ア塗料ではメタリックとしての輝き感を上げるためベー
スコート中のアルミ顔料の粒径を大きくした場合、鮮映
性が充分でないという問題点がある。また、見る角度に
よっては彩度が滅じてしまうという問題点があった。(Problem to be Solved by the Invention) However, with the conventional top coat clear paint having the above-mentioned composition, when the particle size of the aluminum pigment in the base coat is increased in order to increase the metallic shine, the image clarity is not sufficient. There is a problem. Another problem was that the color saturation was lost depending on the viewing angle.
(問題点を解決するための手段)
本発明者は、このような従来の問題点に着目し、鋭意研
究の結果、トップコートクリア塗料の屈折率を所定値以
上にし、しかも特定の組成を用いることにより、問題解
決することを見出した。トップコートクリアの屈折率を
ただ単に大きくするだけであれば、
などを共重合して得られる樹脂を、トップコートクリア
塗料構成成分として用いることが考えられるが、これら
の塗料は長期間の天然バクロや耐候性試験により黄変、
ヒビワレ、剥離等の問題が発生ずる。そこでこの発明に
おいては一般式■および/または■:
(式中、Rは水素原子またはメチル基を示しそれぞれの
Rは同じものでも異なるものでもよい)で表わされる単
量体20〜60重量部と二重結合を有する単量体80〜
40重量部とを共重合して得たアクリル樹脂に、アミノ
樹脂またはイソシアネート基含有樹脂を配合したトップ
コートクリア組成物とすることにより上記問題点を解決
したものである。(Means for Solving the Problems) The present inventor has focused on these conventional problems and, as a result of intensive research, has developed a method that increases the refractive index of the top coat clear paint to a predetermined value or higher, and uses a specific composition. I found that this solved the problem. If the refractive index of the top coat clear is simply increased, it would be possible to use a resin obtained by copolymerizing the top coat clear as a component of the top coat clear, but these paints have a long-term natural background. or yellowing due to weathering tests.
Problems such as cracking and peeling may occur. Therefore, in this invention, 20 to 60 parts by weight of a monomer represented by the general formula (1) and/or (2): (wherein R represents a hydrogen atom or a methyl group, and each R may be the same or different) Monomer with double bond 80~
The above-mentioned problems have been solved by creating a top coat clear composition in which an amino resin or an isocyanate group-containing resin is blended with an acrylic resin obtained by copolymerizing 40 parts by weight of acrylic resin.
上記一般式■およびHの単量体としては、例えばシクロ
へキシルメタクリレート、ビニルシクロヘキサンなどを
挙げることができ、また二重結合を有する共重合しうる
単量体としてはメチル、エチル、ブチルおよびオクチル
などのアルキル化アクリレートおよびアルキル化メタク
リレートや官能基を有するアクリル酸、メタクリル酸、
ヒドロキシルメタクリレート、グリシジルメタクリレー
ト、スチレン、アクリロニトリル、アクリルアミドなど
を挙げることができる。Examples of monomers of the above general formulas (1) and (H) include cyclohexyl methacrylate and vinylcyclohexane, and examples of copolymerizable monomers with double bonds include methyl, ethyl, butyl, and octyl. Alkylated acrylates and alkylated methacrylates and acrylic acid, methacrylic acid with functional groups, such as
Hydroxyl methacrylate, glycidyl methacrylate, styrene, acrylonitrile, acrylamide and the like can be mentioned.
この発明におけるアクリル樹脂は上述する弐■および/
または■の単量体20〜60重量部(共重合後のアクリ
ル樹脂100重量部に対して)に上述する共重合しうる
単量体80〜40重量部(共重合後のアクリル樹脂10
0重量部に対して)の割合で常法により共重合して、例
えばアクリル酸またはメタクリル酸とアルコールとのエ
ステル反応により容易に得ることができる。この場合、
重合開始剤として、例えばベンゾイルパーオキサイド、
p−ターシャリ−ブチルパーベンゾエート、クメンハイ
ドロパーオキサイドなどを適当量使用できる。上記式I
および/または■で表わされる単量体が共重合後のアク
リル樹脂100重量部に対して、20重量部を下まわる
と輝きが滅じ、見る角度により彩度が悪くなることがあ
り、また60重量部を越えると平滑性が得にくくなる。The acrylic resin in this invention is the above-mentioned
Or 20 to 60 parts by weight of the monomer (for 100 parts by weight of the acrylic resin after copolymerization) and 80 to 40 parts by weight of the above-mentioned copolymerizable monomer (10 parts by weight of the acrylic resin after copolymerization).
It can be easily obtained by copolymerizing in a conventional manner at a ratio of 0 parts by weight, for example, by an ester reaction of acrylic acid or methacrylic acid with an alcohol. in this case,
As a polymerization initiator, for example, benzoyl peroxide,
Appropriate amounts of p-tert-butyl perbenzoate, cumene hydroperoxide, etc. can be used. Formula I above
If the monomer represented by If the amount exceeds parts by weight, it becomes difficult to obtain smoothness.
かようにして得たアクリル樹脂とアミノ樹脂またはイソ
シアネート基含有樹脂(例えば商品名[スミジュールN
−75J住友バイエルウレタン■製)とを80 : 2
0〜65 : 35の比率(固形分重量比)で配合する
ことによってこの発明のトップコートクリア塗料組成物
を得ることができる。混合するアミノ樹脂またはイソシ
アネート基含有樹脂の配合割(ピンホール)が発生した
り、平滑性が得にくくなる。The thus obtained acrylic resin and amino resin or isocyanate group-containing resin (for example, the product name [Sumidur N
-75J Sumitomo Bayer Urethane ■) and 80:2
The top coat clear paint composition of the present invention can be obtained by blending in a ratio (solid content weight ratio) of 0 to 65:35. Mixing ratios (pinholes) of the amino resin or isocyanate group-containing resin to be mixed may occur, and smoothness may be difficult to obtain.
また、この発明においてアクリル樹脂固形分100重量
部のうち上記式■および/または■で表わされる単量体
が20〜60重量部の割合になるように他のアクリル樹
脂を混合しても、この発明の目的を達成することができ
る。In addition, in this invention, even if other acrylic resins are mixed so that the monomer represented by the above formula (1) and/or (2) is in a proportion of 20 to 60 parts by weight out of 100 parts by weight of the acrylic resin solid content, this The purpose of the invention can be achieved.
(発明の効果)
以上説明してきたように、この発明によれば、輝き (
メタリック感)に優れ 、見る方向による輝きや明度の
減少が少なく、また耐候性(光沢保持率)の優れたトッ
プコートクリア塗料組成物を得ることができる。(Effect of the invention) As explained above, according to this invention, shine (
It is possible to obtain a top coat clear paint composition that has excellent metallic appearance), less decrease in brightness and brightness depending on the viewing direction, and excellent weather resistance (gloss retention).
(実施例1〜3)および(比較例1〜6)1) 先づ、
トップのコートクリア塗料に用いる各種アクリル樹脂A
−Gおよびアミノ樹脂を次のように調製した:
アク4’8人
還流器、温度計、滴下ロート、加熱装置をつけたIII
!フラスコにキシレン400重量部および酢酸ブチル1
00重量部を入れ約140℃に加熱しながら、表1八に
示す単量体および重合開始剤を混合したちの505重量
部を2時間にわたり滴下し、しかる後145℃で約2時
間保持し、加熱残分50.1%の樹脂入を得た。(Examples 1 to 3) and (Comparative Examples 1 to 6) 1) First,
Various acrylic resins A used for top coat clear paint
-G and amino resins were prepared as follows: Aku 4' 8-person reflux, thermometer, addition funnel, and a heating device.
! 400 parts by weight of xylene and 1 part of butyl acetate in a flask
00 parts by weight was added thereto, and while heating to about 140°C, 505 parts by weight of a mixture of the monomers and polymerization initiator shown in Table 18 were added dropwise over 2 hours, and then kept at 145°C for about 2 hours. , a resin mixture with a heating residue of 50.1% was obtained.
ヱ文ユ酉租Jlff B −G
上記フラスコにキシレン100重量部、商品名[ソルヘ
ッソ1tloOJ(エッソ化学■製)300重量部およ
びn−ブチルアルコール100重量部を入れ約140℃
に加熱しながら、表IB〜Gに示す単量体および重合開
始剤を混合したちの505重鼠装置1.5時間にわたり
滴下し、しかる後145℃で約2時間保持し、表1に示
す加熱残分の樹脂B〜Gを得た。100 parts by weight of xylene, 300 parts by weight of Solgesso 1tloOJ (manufactured by Esso Chemical Co., Ltd.) and 100 parts by weight of n-butyl alcohol were placed in the above flask and heated to about 140°C.
The monomers and polymerization initiators shown in Tables IB to G were mixed and added dropwise to the 505 heavy-duty apparatus for 1.5 hours while heating at 145°C for about 2 hours. Resins B to G as heating residues were obtained.
1」ノl
還流器、温度計、分留器および加熱装置をつけたフラス
コにn−ブチルアルコール222重量部、メラミン25
2重量部およびホルムアルデヒドのn−ブチルアルコー
ル溶液(ホルムアルデヒド:40、n−ブチルアルコー
ル:50、水:10(重量比))300重量部を入れ、
約2時間100−.105℃に加熱し、凝縮水を取り除
き、しかる後真空ポンプにて減圧にし、これにキシレン
220重量部を加え、加熱残分59%のアミノ樹脂を得
た。In a 1" flask equipped with a refluxer, thermometer, fractionator and heating device, 222 parts by weight of n-butyl alcohol and 25 parts by weight of melamine were added.
2 parts by weight and 300 parts by weight of a formaldehyde n-butyl alcohol solution (formaldehyde: 40, n-butyl alcohol: 50, water: 10 (weight ratio)),
Approximately 2 hours 100-. The mixture was heated to 105° C., condensed water was removed, and then the pressure was reduced using a vacuum pump, and 220 parts by weight of xylene was added thereto to obtain an amino resin with a heating residue of 59%.
トップコートクリア゛° S 律
上記表1に示す組成からなる各種アクリル樹脂A−Gに
上記アミノ樹脂またはイソシアネート基含有樹脂(商品
名「スミジュールN75J (住友バイエルウレタン
側製))を表2に示す割合で配合し、しかる後混合溶剤
(商品名[ソルヘッソIIklloOJ(エッソ化学■
製) /商品名[ツルペッツl1h150 J(エソソ
化学■製)/n−ブタノール−40150/10(重量
比))を加え、均一に混合し、フォードカップ階4を用
い、20℃で25秒間粘度調整してこの発明のトップコ
ートクリア塗料組成物I〜■(実施例1〜3)および比
較の目的のための比較組成物■〜■を得た。かようにし
て得た各種塗料組成物を後述の方法により塗布した試験
片を作成し、性能試験を行った。これらの試験結果を表
3に示す。この表から、この発明のクリア塗料組成物は
輝き、耐候性等が優れていることがわかる。Top Coat Clear゛° S Rules The above amino resin or isocyanate group-containing resin (trade name: Sumidur N75J (manufactured by Sumitomo Bayer Urethane)) shown in Table 2 is added to various acrylic resins A-G having the compositions shown in Table 1 above. After mixing in the following proportions, the mixed solvent (product name [Solhesso IIklloOJ (Esso Chemical)
(manufactured by)/trade name [Tsurupez l1h150 J (manufactured by Esoso Kagaku ■)/n-butanol-40150/10 (weight ratio)] was added, mixed uniformly, and the viscosity was adjusted at 20°C for 25 seconds using a Ford cup floor 4. Topcoat clear paint compositions I to II (Examples 1 to 3) of the present invention and comparative compositions I to II for comparison purposes were obtained. Test pieces were prepared by coating the various coating compositions thus obtained by the method described below, and performance tests were conducted. The results of these tests are shown in Table 3. From this table, it can be seen that the clear coating composition of the present invention has excellent shine, weather resistance, etc.
また、輝き(メタリック惑)を実施例2のトップコート
クリア塗料組成物■および比較例6の比較組成物■につ
いて測定し、これらの測定結果を第1図(組成物■)お
よび第2図(組成物■)に示す。これらの結果を比較し
、この発明の組成物の輝きが優れていることがわかる。In addition, the shine (metallic appearance) was measured for the top coat clear paint composition ■ of Example 2 and the comparative composition ■ of Comparative Example 6, and the results of these measurements are shown in Figure 1 (composition ■) and Figure 2 ( Composition (■) is shown. Comparing these results, it can be seen that the composition of the present invention has excellent shine.
0 、8m+s (厚さ) X 75mm(41)
X 150m+m (長さ)の冷延鋼板を脱脂し、リ
ン酸亜鉛系化成処理し、カチオン型電着塗料を塗装(約
20μ)し、170℃×30分焼付けし、アルキド−メ
ラミン系中塗り塗料塗装(約35μ)し、140℃×3
0分焼付けし、ベースコートエナメル塗装(約20μ)
し、表2に示す各種トップコートクリア塗料組成物I〜
■をそれぞれ塗装(約30μ)し、クリア塗料組成物■
以外の場合140℃×30分で焼付けし、クリア塗料組
成物■の場合90℃×30分で焼付けし、24時間後、
各種試験に供試したく中塗り以後はエアースプレーで塗
装)。0, 8m+s (thickness) x 75mm (41)
x 150m+m (length) cold-rolled steel plate was degreased, subjected to zinc phosphate chemical conversion treatment, coated with cationic electrodeposition paint (approximately 20μ), baked at 170°C for 30 minutes, and coated with alkyd-melamine intermediate coating. Painted (approximately 35μ) and heated at 140℃ x 3
Bake for 0 minutes and apply base coat enamel (approximately 20μ)
Various top coat clear paint compositions I~ shown in Table 2
Paint (approximately 30μ) each of ■, and clear paint composition ■
For other cases, bake at 140°C for 30 minutes, and for clear paint composition (3), bake at 90°C for 30 minutes, and after 24 hours,
I wanted to use it for various tests, so I painted it with air spray after the intermediate coating).
この場合、上記ベースコートエナメルは次のように8周
製したニ
アルミ顔料(商品名「ハイスパークル」、東洋アルミ■
製、加熱残分65重量%) 10重量部に酢酸ブチル1
2重量部を加え、均一に分散し、これに表1に示すアク
リル樹脂A 48.9重量部および上記アミノ樹脂6.
2重量部を加え、均一に混合し、更に予じめ作成してお
いた混合溶剤(キシレン/酢酸ブチル/2−エトキシエ
チルアセテート=40/40/20 (重量比))を加
えフォードカップN114を用い20℃で約14秒間粘
度調整した。In this case, the above base coat enamel is made of 8 rounds of Nialuminum pigment (trade name "High Sparkle", Toyo Aluminum) as follows.
10 parts by weight of butyl acetate (65% by weight)
2 parts by weight were added and uniformly dispersed, and 48.9 parts by weight of acrylic resin A shown in Table 1 and the above amino resin 6.
Add 2 parts by weight, mix uniformly, add a pre-prepared mixed solvent (xylene/butyl acetate/2-ethoxyethyl acetate = 40/40/20 (weight ratio)), and add Ford Cup N114. The viscosity was adjusted at 20° C. for about 14 seconds.
l]31: PGD計(村上色彩研究所製)にて測定す
る(結果をPGD値として示す)。l]31: Measured with a PGD meter (manufactured by Murakami Color Research Institute) (results are shown as PGD values).
硬一度: けがき用鉛筆にて塗面のキズ付き程度を鉛筆
の芯の硬度で表示する(JIS 56006−78(鉛
筆))。Hardness: The degree of scratches on the painted surface with a marking pencil is expressed by the hardness of the pencil lead (JIS 56006-78 (pencil)).
flユニ 螢光紫外線・凝結試験(ASTM G−53
−77)による促進試験
紫外線照射80℃×8時間−結露50℃×4時間をくり
返す。合計2000時間まで試験した。目視による外観
と鏡面反射率
(JIS K5400)による光沢を測定する。fl Uni Fluorescent Ultraviolet Condensation Test (ASTM G-53
-77) accelerated test UV irradiation at 80°C for 8 hours - dew condensation at 50°C for 4 hours was repeated. Tested for a total of 2000 hours. Visual appearance and gloss by specular reflectance (JIS K5400) are measured.
逆−叫: 変角測色計(VC−1、スガ試験機(掬製
)にて測定する。この変角測色計の概略図を第3図に示
す。試験片1の真上から光源2の光を照射し、試験片1
に反射させ、反射光をθ−10″と80″の位置で受光
器3によりL1値(明度)を測定している。Reverse cry: Measured using a variable angle colorimeter (VC-1, Suga Test Instruments (manufactured by Kiki). A schematic diagram of this variable angle colorimeter is shown in Figure 3. A light source is placed directly above the test piece 1. Irradiate the light of 2, test piece 1
The L1 value (brightness) of the reflected light is measured by the light receiver 3 at the positions of θ-10'' and 80''.
屏」−←L夕」−ム2jリー: 顕微光沢度計により測
定する。光沢度計の概略図を第4に示す。Folding" - ← L evening" - M2J Lee: Measured with a microscopic gloss meter. A schematic diagram of the gloss meter is shown in fourth.
試験片1を走行させながら、光源2の光を試験片1に照
射し、反射光の強さを受光器3により測定している。反
射光の強さによりメタリック惑(アルミニウム顔料のキ
ラキラ輝く度合)を測定する。While running the test piece 1, light from a light source 2 is irradiated onto the test piece 1, and the intensity of the reflected light is measured by a light receiver 3. The metallic effect (the degree of sparkle of the aluminum pigment) is measured by the intensity of reflected light.
第1図は実施例2のトップコートクリア塗料組成物につ
いての輝き(メタリック感)を測定した結果を示す曲線
図、
第2図は比較例6の比較トップコートクリア塗料組成物
についての輝きを測定した結果を示す曲線図、
第3図は色調を測定するのに用いた変角測色計の概略を
示す説明図、
第4図は輝きを測定するのに用いた顕微光沢度計の概略
を示す説明図である。
1・・・試験片 2・・・光源3・・・受光
器
特許出願人 日産自動車株式会社
代理人弁理士 杉 村 暁 秀
同 弁 理 士 杉 村 興
作 。
第1図
第2図
第3図
―
第4図
走行距離Figure 1 is a curve diagram showing the results of measuring the brightness (metallic feel) of the top coat clear paint composition of Example 2, Figure 2 is a curve diagram showing the results of measuring the brightness of the comparative top coat clear paint composition of Comparative Example 6 Figure 3 is an explanatory diagram showing the outline of the variable angle colorimeter used to measure color tone, Figure 4 is an outline diagram of the microscopic gloss meter used to measure shine. FIG. 1...Test piece 2...Light source 3...Receiver Patent applicant Nissan Motor Co., Ltd. Representative Patent Attorney Hidetoshi Sugimura Patent Attorney Oki Sugimura
Made by. Figure 1 Figure 2 Figure 3 - Figure 4 Travel distance
Claims (1)
のRは同じものでも異なるものでもよい)で表わされる
単量体20〜60重量部と二重結合を持つ単量体80〜
40重量部とを共重合して得たアクリル樹脂、およびア
ミノ樹脂またはイソシアネート基含有樹脂からなるトッ
プコートクリア塗料組成物。[Claims] 1. General formula I and/or II; ▲There are mathematical formulas, chemical formulas, tables, etc.▼...(I) ▲There are mathematical formulas, chemical formulas, tables, etc.▼...(II) (Formula (wherein, R represents a hydrogen atom or a methyl group, and each R may be the same or different) and 80 to 60 parts by weight of a monomer having a double bond.
A top coat clear paint composition comprising an acrylic resin obtained by copolymerizing 40 parts by weight with an amino resin or an isocyanate group-containing resin.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP49487A JPS63170475A (en) | 1987-01-07 | 1987-01-07 | Clear coating composition for topcoating |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP49487A JPS63170475A (en) | 1987-01-07 | 1987-01-07 | Clear coating composition for topcoating |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63170475A true JPS63170475A (en) | 1988-07-14 |
Family
ID=11475307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP49487A Pending JPS63170475A (en) | 1987-01-07 | 1987-01-07 | Clear coating composition for topcoating |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63170475A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005116090A1 (en) * | 2004-05-31 | 2005-12-08 | Mitsubishi Gas Chemical Company, Inc. | Thermoplastic transparent resin |
WO2013157530A1 (en) | 2012-04-17 | 2013-10-24 | 三菱瓦斯化学株式会社 | Laminate body |
WO2013157529A1 (en) | 2012-04-17 | 2013-10-24 | 三菱瓦斯化学株式会社 | Thermoplastic resin |
WO2023068290A1 (en) | 2021-10-22 | 2023-04-27 | 三菱瓦斯化学株式会社 | Thermoplastic resin composition, molded article, and method for producing and method for improving transmittance of thermoplastic resin composition |
-
1987
- 1987-01-07 JP JP49487A patent/JPS63170475A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005116090A1 (en) * | 2004-05-31 | 2005-12-08 | Mitsubishi Gas Chemical Company, Inc. | Thermoplastic transparent resin |
EP2813522A1 (en) * | 2004-05-31 | 2014-12-17 | Mitsubishi Gas Chemical Company, Inc. | Thermoplastic transparent resin |
US9085647B2 (en) | 2004-05-31 | 2015-07-21 | Mitsubishi Gas Chemical Company, Inc. | Thermoplastic transparent resin |
WO2013157530A1 (en) | 2012-04-17 | 2013-10-24 | 三菱瓦斯化学株式会社 | Laminate body |
WO2013157529A1 (en) | 2012-04-17 | 2013-10-24 | 三菱瓦斯化学株式会社 | Thermoplastic resin |
WO2023068290A1 (en) | 2021-10-22 | 2023-04-27 | 三菱瓦斯化学株式会社 | Thermoplastic resin composition, molded article, and method for producing and method for improving transmittance of thermoplastic resin composition |
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