JPS5942694B2 - How to paint resin molded products - Google Patents

How to paint resin molded products

Info

Publication number
JPS5942694B2
JPS5942694B2 JP6919777A JP6919777A JPS5942694B2 JP S5942694 B2 JPS5942694 B2 JP S5942694B2 JP 6919777 A JP6919777 A JP 6919777A JP 6919777 A JP6919777 A JP 6919777A JP S5942694 B2 JPS5942694 B2 JP S5942694B2
Authority
JP
Japan
Prior art keywords
coating
primer
resin
resin molded
thiol
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
Application number
JP6919777A
Other languages
Japanese (ja)
Other versions
JPS543884A (en
Inventor
幸正 安藤
栄一郎 滝山
春之 兼広
利明 羽入田
孝次郎 森
栄 尾形
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Resonac Holdings Corp
Original Assignee
Showa Highpolymer Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Showa Highpolymer Co Ltd filed Critical Showa Highpolymer Co Ltd
Priority to JP6919777A priority Critical patent/JPS5942694B2/en
Publication of JPS543884A publication Critical patent/JPS543884A/en
Publication of JPS5942694B2 publication Critical patent/JPS5942694B2/en
Expired legal-status Critical Current

Links

Description

【発明の詳細な説明】 本発明は熱硬化性または熱可塑性樹脂成形品などの導電
性をもたないか或は乏しい材料の自由に静電塗装または
電着塗装することを可能にする方法に関するものである
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method which makes it possible to freely electrostatically or electrodeposit materials with no or poor electrical conductivity, such as thermosetting or thermoplastic resin moldings. It is something.

不飽和ポリエステル樹脂、炭酸カルシウム、ガラス繊維
を主材とし、触媒、離型剤、増粘剤を配合して得られる
FRPを成形材料のシートモールディングコンパウンド
SMCや、バルクモールディングコンパウンドBMCを
使用した加圧加熱成形による自動車部品が用いられてい
る。
FRP, which is mainly made of unsaturated polyester resin, calcium carbonate, and glass fiber, and mixed with a catalyst, a mold release agent, and a thickener, is pressed using sheet molding compound SMC or bulk molding compound BMC as a molding material. Automotive parts made by thermoforming are used.

このSMC、BMC成形品を自動車部品として応用する
場合にはとしてスチールボディと同一ラインで同一塗装
のできることが理想的な塗装工程であり、その場合には
塗装ラインのはじめからアッセンブリーして電着塗装→
中塗り→上塗りといつた流れが可能となる。
When applying these SMC and BMC molded products as automobile parts, the ideal painting process would be to be able to paint them in the same way as the steel body on the same line. →
It is possible to create a flow from intermediate coating to top coating.

ところが従来SMC、BMC成形品は電気絶縁性が高く
、静電塗装または電着塗装は不可能であつた。
However, conventional SMC and BMC molded products have high electrical insulation properties and cannot be electrostatically painted or electrodeposited.

従来から導電性をもたない材料をメッキする方法の1つ
とし該材料の上に、密着性付与または向上のために溶剤
に溶解した形の熱可塑性ポリマーまたはゴム、例えばネ
オプレンラバー等を塗布し、溶剤除去後化学的に導電性
の金属皮膜を形成させ、更に、加熱または溶剤に浸漬す
るなどの後処理を施して該金属皮膜の接着性を向上させ
るなどの方法も提案されている。
A conventional method of plating non-conductive materials is to coat the material with a thermoplastic polymer or rubber dissolved in a solvent, such as neoprene rubber, to impart or improve adhesion. A method has also been proposed in which a conductive metal film is chemically formed after removing the solvent, and then a post-treatment such as heating or immersion in a solvent is performed to improve the adhesion of the metal film.

しかしながら、前述した熱可塑性ポリマーまた・ はゴ
ムをプライマーとして得られた金属皮膜は密着性が必ず
しも充分といわれない状況にある。
However, the adhesion of metal films obtained using the above-mentioned thermoplastic polymer or rubber as a primer is not necessarily sufficient.

またこれに静電塗装あるいは電着塗装を施したものは密
着性が充分でなく、耐湿試験や、デュポン式衝撃試、験
で大きな欠陥がでる。本発明者らは従来の化学的メッキ
方法の欠点を改良し、従来不可能であるか、もしくは満
足な結果が得られなかつた材料上に強固な導電性皮膜を
設け、これに静電塗装または電着塗装を施すことにより
目的を達成できることを見出し、本発明を完成すること
ができた。
Also, when electrostatic coating or electrodeposition coating is applied, the adhesion is insufficient, and major defects appear in moisture resistance tests and DuPont impact tests. The inventors of the present invention have improved the shortcomings of conventional chemical plating methods and applied electrostatic coating or It was discovered that the object could be achieved by applying electrodeposition coating, and the present invention was completed.

すなわち、本発明は1分子中に2個以上のチオール基を
有する多価チオール化合物(1)と、1分子中にチオー
ル基と反応可能な不飽和結合を1個より多く含む不飽和
化合物(4)とを該チオール基と該不飽和結合の数の合
計が4以上であるように選択してなる混合物またはこれ
らの付加反応により生成するプレポリマ一をプライマー
として熱可塑性または熱硬化性樹脂成形品上に塗布し、
ゲル化または硬化させ、該プライマー上に化学的方法で
導電性の金属皮膜を形成させ、これに静電塗装または電
着塗装を行うことを特徴とする樹脂成形品の塗装方法に
関するものである。チオール基を含む樹脂系が、化学的
に形成された金属皮膜と密着性に富む理由は必ずしも明
確とはいえないが、チオール基には重金属イオンの捕集
能力もあることから、チオール基または硫黄原子を介し
てポリマーと金属皮膜との結合の可能性も想定される。
本発明に適する多価チオール化合物の代表例としてはペ
ンタエリスリトールテトラメルカプトアセテート、水酸
基を含むチオアルコールと多価カルボン酸とのエステル
化物、多価アルコールとチオカルボン酸とのエステル化
物が一般に利用される。
That is, the present invention provides a polyvalent thiol compound (1) having two or more thiol groups in one molecule, and an unsaturated compound (4) containing more than one unsaturated bond capable of reacting with a thiol group in one molecule. ) selected such that the total number of the thiol group and the unsaturated bond is 4 or more, or a prepolymer produced by the addition reaction of these is used as a primer to form a thermoplastic or thermosetting resin molded product. Apply to
The present invention relates to a method for coating a resin molded article, which comprises gelling or curing the primer, forming a conductive metal film on the primer by a chemical method, and then applying electrostatic coating or electrodeposition coating to this. The reason why resin systems containing thiol groups have good adhesion to chemically formed metal films is not necessarily clear, but since thiol groups also have the ability to trap heavy metal ions, thiol groups or sulfur The possibility of a bond between the polymer and the metal film via atoms is also envisaged.
Typical examples of polyvalent thiol compounds suitable for the present invention include pentaerythritol tetramercaptoacetate, esterified products of hydroxyl group-containing thioalcohols and polyvalent carboxylic acids, and esterified products of polyvalent alcohols and thiocarboxylic acids.

更に不飽和化合物の代表例としては不飽和シクロアセタ
ールをあげることができる。最も代表的な例はなかでも
ジアリリデンペンタエリスリツトである。なお本発明で
使用しうる他の多価チオール化合物または不飽和化合物
については「導電性付与のための表面処理方法」と題す
る同一出願人に係る同日付特許願に記載のものを使用で
き、該特許願明細書の関連部分を引用することによつて
この明細書に組入れるものとする。不飽和化合物と多師
チオール化合物との混合割合はそれぞれの組合わせで異
るが、一般には官能基当量比で1:0.7〜2、好まし
くは1:0.8〜1.7、より好ましくは1:0.9〜
1.5である。
Furthermore, unsaturated cycloacetal can be cited as a representative example of the unsaturated compound. The most typical example is diarylidenepentaerythrite. Regarding other polyvalent thiol compounds or unsaturated compounds that can be used in the present invention, those described in the patent application filed by the same applicant and dated on the same day entitled "Surface treatment method for imparting electrical conductivity" can be used. The relevant portions of the patent application specification are incorporated herein by reference. The mixing ratio of the unsaturated compound and the polythiol compound differs depending on each combination, but generally the functional group equivalent ratio is 1:0.7 to 2, preferably 1:0.8 to 1.7, or more. Preferably 1:0.9~
It is 1.5.

これらの不飽和化合物と多価チオール化合物とは混合物
でも、付加反応により生成するプレポリマ一の形でも使
用するこ(!l:/)Sできる。混合物またはプレポリ
マ一の粘度が高く塗装に適当でない場合には適当な溶剤
を選択使用することも可能である。化学的金属皮膜を形
成させることは、例えば硝酸銀水溶液とフエーリング゛
液とから形成される銀鏡が代表的であり、全く同様に銅
鏡反応も利用可能である。こうして得られた強固な金属
皮膜に静電塗装、電着塗装をおこなうことできわめて密
着性、耐湿性のすぐれた皮膜が得られる。従来、SMC
.BMCを自動車部品へ応用するにあたつて、外観を重
要視する我が国の場合、塗装品の塗膜にピンホール、ク
レータ一等の欠陥が発生し易く問題であり、米国などに
比べて実用例がきわめてすくない。
These unsaturated compounds and polyvalent thiol compounds can be used either as a mixture or in the form of a prepolymer produced by an addition reaction. If the mixture or prepolymer has a high viscosity and is not suitable for coating, it is also possible to select and use a suitable solvent. A typical method for forming a chemical metal film is, for example, a silver mirror formed from an aqueous silver nitrate solution and Fehling's solution, and a copper mirror reaction can also be used in the same manner. By applying electrostatic coating or electrodeposition to the strong metal coating thus obtained, a coating with extremely excellent adhesion and moisture resistance can be obtained. Conventionally, SMC
.. When applying BMC to automobile parts, in Japan, where appearance is important, defects such as pinholes and craters are likely to occur in the paint film of painted products, which is a problem, and there are fewer practical examples than in the United States. There are very few.

しかるに、本発明のプラ不マ一は硬化の自由度が大きく
、カチオン触媒、過酸化物触媒を用いての硬化方法以外
に活性エネルギー線例えば紫外線照射による硬化も可能
であるため、ピンホール、クレータ一の発生が甚だ少な
く、上記した従来方式による塗膜欠陥が発生し難い。
However, the plastic material of the present invention has a large degree of curing flexibility, and in addition to curing methods using cation catalysts and peroxide catalysts, it can also be cured by active energy rays, such as ultraviolet irradiation. The number of defects caused by the above-mentioned conventional method is less likely to occur.

これに加えて化学メツキの後段に施す静電塗装あるいは
電着塗装による塗膜との密着が極めて良好であることか
ら、本発明のプライマー処理と化学メツキ処理を施した
樹脂成形品を塗装ラインのはじめから鋼板使用のボデイ
に組込み、鋼板部分の塗装と同時に電着下塗り→中塗り
→上塗りの現在用いられている塗装工程に載せることが
可能となる。このように本発明方法によれば各種の樹脂
成形品を自動車の部品として使用することが容易となる
。更に本発明方法の利用分解は電気電子部品、車輛部品
、住宅関連設備、インテリアまたはアウテリヤ製品、腐
食されやすい部署に用いられる物品の塗装とその用途は
極めて多岐且つ広範囲である。
In addition, because the adhesion with the electrostatic coating or electrodeposition coating applied after chemical plating is extremely good, resin molded products subjected to the primer treatment and chemical plating treatment of the present invention can be used on the painting line. It can be incorporated into a body using steel plates from the beginning, and can be applied to the currently used painting process of electrodeposition undercoating, intermediate coating, and topcoating at the same time as painting the steel plate parts. As described above, according to the method of the present invention, various resin molded products can be easily used as automobile parts. Furthermore, the method of the present invention can be used to paint electrical and electronic parts, vehicle parts, housing-related equipment, interior or exterior products, and articles used in areas susceptible to corrosion, and its uses are extremely diverse and wide-ranging.

本発明方法により導電性金属皮膜を形成させ、これに静
電塗装または電着塗装を施す材料としては、熱硬化性樹
脂、例えばSMC.BMC、フエノール樹脂、不飽和ポ
リエステル樹脂、エポキシ樹脂、ビニルエステル樹脂、
DAPlアミノ樹脂、シリコーン樹脂、ウレタン樹脂等
の成形品が望ましいが、高い焼付温度を必要としない時
には熱可塑性樹脂例えばポリ塩化ビニル、ポリスチレン
、スチレン−アクリロニトリル樹脂、ABSlポリアミ
ド、ポリイミド、ポリアセタール、ポリカーボネート、
ポリプロピレン、ポリエチレン、エチレン一酢酸ビニル
樹脂、ポリエチレンテレフタレート、ポリブチレンテレ
フタレート、メタクリル樹脂、SBRlNBRlMBR
lCRおよびIRl天然ゴム、エボナイト、などのゴム
成形品、プルラン(商品名)、セルロースアセテートも
利用しうる。次に本発明の理解を助けるために以下に実
施例を示すが、本発明はこれによつて制限されるもので
はない。
The material for forming a conductive metal film by the method of the present invention and applying electrostatic coating or electrocoating to it is a thermosetting resin, such as SMC. BMC, phenolic resin, unsaturated polyester resin, epoxy resin, vinyl ester resin,
Molded products of DAPl amino resin, silicone resin, urethane resin, etc. are desirable, but when high baking temperatures are not required, thermoplastic resins such as polyvinyl chloride, polystyrene, styrene-acrylonitrile resin, ABSl polyamide, polyimide, polyacetal, polycarbonate,
Polypropylene, polyethylene, ethylene monovinyl acetate resin, polyethylene terephthalate, polybutylene terephthalate, methacrylic resin, SBRlNBRlMBR
Rubber molded products such as CR and IR natural rubber, ebonite, pullulan (trade name), and cellulose acetate may also be used. Next, examples will be shown below to help understand the present invention, but the present invention is not limited thereto.

実施例 1 (i)不飽和ポリエステル樹脂をベースとし、ガラス繊
維、無機質充てん剤を併用したFRP成形材料〔商品名
ML−200(昭和高分子製SMC)〕を100トンプ
レスを使用し、金型温度140℃〜145℃、成形圧力
100Kf/c或成形時間3分により重量500t、肉
厚3能のトレイを成形し、600番サンドペーパーで表
面処理を行つた。
Example 1 (i) An FRP molding material based on unsaturated polyester resin, combined with glass fiber and inorganic filler [trade name ML-200 (SMC manufactured by Showa Kobunshi)] was molded using a 100-ton press. A tray having a weight of 500 tons and a wall thickness of 3 mm was formed at a temperature of 140 DEG C. to 145 DEG C., a molding pressure of 100 Kf/c, and a molding time of 3 minutes, and the surface was treated with No. 600 sandpaper.

(4)ジアリリデンペンタエリスリツト21.2f(0
.1モノ(ハ)を純度95%のペンタエリスリトールテ
トラメルカプトアセテート22.77(0.05モル)
を混合溶解し、光増感剤としてベンゾフエノン2.5p
hrを添加してプライマー樹脂組成物を造つた。
(4) Diarylidene pentaerythritol 21.2f (0
.. 1 mono(c) is 95% pure pentaerythritol tetramercaptoacetate 22.77 (0.05 mol)
Mix and dissolve and add 2.5p of benzophenone as a photosensitizer.
A primer resin composition was made by adding hr.

(1)で得られた成形品に(Ii)の樹脂組成物をバー
コータ一を用いて、15μ厚に塗布した後に、岩崎電気
(株)製の高圧水銀ランプ(有効出力80ワツト/有効
管長1cm/灯)を用い、空気雰囲気中照射距離15?
13m/分のラインスピードで紫外線照射を1回行な
いゲル化状態とした。
After applying the resin composition of (Ii) to a thickness of 15 μm on the molded product obtained in (1) using a bar coater, a high-pressure mercury lamp manufactured by Iwasaki Electric Co., Ltd. (effective output 80 W/effective tube length 1 cm) was applied. / lamp), irradiation distance in air atmosphere is 15?
Ultraviolet irradiation was performed once at a line speed of 13 m/min to form a gelatinized state.

このプライマー上に常法に従つて、硝酸銀溶液と還元液
とをスプレーガンで吹付け導電性を有する薄い銀皮膜を
形成した。この銀皮膜は薄く、更に光硬化させることが
可能であつた。水洗乾燥後同様に紫外線照射を5回行な
い、完全硬化させた。この銀皮膜に岩田塗装機工業の静
電塗装機をもちいてエポキシメラミン塗料F−388(
日本特殊塗料製)を30μの膜厚で塗装した後、150
℃、30分の焼付けを行つた。この塗装はピンホールの
発生が無く、ゴバン目試験による密着性は1000/1
00で、剥離は一切無かつた。また耐湿性は温度50℃
±1℃、湿度98%RH以上のヒユーミデイテイボツク
スを用い、24時間を1サイクルとして10サイクル行
い、プリスタ一の発生はなかつた。実施例 2 不飽和ポリエステル樹脂のリゴラツク一158BQT(
昭和高分子製)にパーメツク1phrを加え、離型剤処
理したガラス板上でガラスマツト(#450日東紡製)
4枚の含浸積層を行い、3×300×300WrfL3
の平板をパントレーアップ成形した。
A thin conductive silver film was formed on this primer by spraying a silver nitrate solution and a reducing solution with a spray gun according to a conventional method. This silver film was thin and could be further photocured. After washing with water and drying, it was irradiated with ultraviolet rays five times in the same manner to completely cure it. This silver film was coated with epoxy melamine paint F-388 (
After coating with a film thickness of 30μ (manufactured by Nippon Tokushu Paints), 150
Baking was performed at ℃ for 30 minutes. This coating has no pinholes and has adhesion of 1000/1 according to the goblin test.
00, there was no peeling at all. Also, humidity resistance is 50℃
Using a humidifier box with a temperature of ±1° C. and a humidity of 98% RH or more, 10 cycles were performed with one cycle of 24 hours, and no prismatic formation occurred. Example 2 Unsaturated polyester resin rigorack 158BQT (
Add 1 phr of Permec (manufactured by Showa Kobunshi) to glass matte (#450 manufactured by Nittobo) on a glass plate treated with a mold release agent.
Perform impregnated lamination of 4 sheets, 3 x 300 x 300WrfL3
The flat plate was pan-lay-up molded.

この平板を表面洗浄乾燥後、実施例1と同じ方法により
銀皮膜を得た。
After the surface of this flat plate was washed and dried, a silver film was obtained in the same manner as in Example 1.

これに静電塗装装置(日本工芸工業製)を使用し、メラ
ミンアルキツド塗料アミロン#100(日本特殊塗料製
)により30μの厚さに塗装後、140℃×30分の焼
付を行つた。この塗装物にはFRP塗装品にありがちな
ピンホール、ブリスタ一がなく、レベリングのすぐれた
塗装物が得られた。ゴバン目試験法による密着性は10
0/100で剥離はなかつた。
This was coated with melamine alkyd paint Amilon #100 (Nippon Tokushu Toyo Co., Ltd.) to a thickness of 30 μm using an electrostatic coating device (manufactured by Nippon Kogei Kogyo Co., Ltd.), and then baked at 140° C. for 30 minutes. This coated product had no pinholes or blisters that are common in FRP coated products, and a coated product with excellent leveling was obtained. Adhesion according to the goban test method is 10
There was no peeling at 0/100.

また耐湿性は温度50℃±1℃、湿度98%RH以上の
ヒユーミデイボツクスを用い、24時間を1サイクルと
して10サイクル行い、ブリスタ一の発生はなかつた。
実施例 3 不飽和ポリエステル樹風炭酸カルシウム、ガラス繊維を
主材とし、触媒、離型剤を配合し、混練して得られるバ
ルクモールデイングコンパウンド(BMC)〔商品名6
010(昭和高分子製無収縮タイプ)〕をBMC射出専
用機(日本製鋼所N−300)を使用し、金型温度15
0℃±5℃、射出圧1000Kク/Cd、射出速度2秒
、硬化時間90秒で、重量1Kqの箱状製品を得た。
The moisture resistance was evaluated using a humidifier box at a temperature of 50° C.±1° C. and a humidity of 98% RH or more, and 10 cycles were performed with each cycle of 24 hours, and no blisters were generated.
Example 3 Bulk molding compound (BMC) [Product name 6] made of unsaturated polyester dendritic calcium carbonate and glass fiber, mixed with a catalyst and a mold release agent, and kneaded.
010 (non-shrink type made by Showa Kobunshi)] using a BMC injection machine (Japan Steel Works N-300) at a mold temperature of 15
A box-shaped product having a weight of 1 Kq was obtained at 0° C.±5° C., an injection pressure of 1000 Kq/Cd, an injection speed of 2 seconds, and a curing time of 90 seconds.

この成形品から100×200cdの平面部を切り出し
、イソプロピルアルコールで洗浄後80℃で10分間乾
燥して、表面調整を行つた。これに実施例1と同様のプ
ライマーを用い、パラトルエンスルホン酸(カチオン触
媒)0.1phrを添加し、パーコータ一を用いて15
μ厚に塗布した後実施例1と同条件により紫外線照射を
1回行つてゲル化状態とした。
A flat part of 100 x 200 cd was cut out from this molded product, washed with isopropyl alcohol, and dried at 80°C for 10 minutes to condition the surface. Using the same primer as in Example 1, 0.1 phr of para-toluenesulfonic acid (cationic catalyst) was added to this, and 15 phr was added using a percoater.
After coating to a thickness of μ, UV irradiation was performed once under the same conditions as in Example 1 to form a gelatinized state.

このプライマー塗布BMC成形品を塩化第1錫(SnC
t2)10f1濃塩酸40d1水1tからなるセンシタ
イジング液中に20℃で5分間浸漬し、とり出して水洗
した後、塩化パラジウム(Pdct2)0.57、濃塩
酸10Tn1,、水1tから成るアクチベーシヨン液中
に40℃で5分間浸漬してとり出し、水洗した。
This primer-coated BMC molded product was coated with tin chloride (SnC).
t2) After immersing in a sensitizing solution consisting of 10f1 concentrated hydrochloric acid, 40dl, and 1 ton of water at 20°C for 5 minutes, taking it out and washing with water, sensitizing solution consisting of 0.57 palladium chloride (Pdct2), 10Tn1 of concentrated hydrochloric acid, and 1 ton of water. It was immersed in bathing liquid at 40°C for 5 minutes, taken out, and washed with water.

その後市販の硫酸銅メツキ液(奥野製薬工業(株)製)
中に20℃で5〜10分浸漬して、化学銅メツキ処理を
行つた。5〜10分でプライマー素地全面に均一な銅メ
ツキ皮膜を得た。
After that, commercially available copper sulfate plating solution (manufactured by Okuno Pharmaceutical Co., Ltd.)
Chemical copper plating treatment was carried out by immersing the sample in the liquid at 20° C. for 5 to 10 minutes. A uniform copper plating film was obtained over the entire surface of the primer base in 5 to 10 minutes.

水洗乾燥後、80℃に30分間加熱してカチオン触媒に
よる硬化を完了させた。こうして得られた導電性BMC
成形品に水溶性樹脂塗装メルタ(商品名、日本特殊塗料
(株)製)を電着塗装装置(岩田塗装機械工業(株)製
)で沈着させて、140℃で30分間焼付を行つた。得
られた塗膜はゴバン目試験法による密着性は100/1
00であり、耐衝撃性はデユポン式衝撃試験装置で50
07×20cm合格と良好で、耐水性は40℃、240
時間経過後もブリスタ一の発生はみられなかつた。実施
例 4 市販の硬質塩化ビニル板を#400のサンドペーパーで
研磨後、これを実施例1で調製したと同じプライマー樹
脂組成物を15μ厚に塗布した後、岩崎電気株式会社製
の高圧水銀ランプ(有効出力80ワツト/有効管長1c
m/1灯)を用い、空気雰囲気中照射距離15cms1
3m/分のラインスピードで紫外線照射を5回行い、完
全に硬化させ、鉛筆硬度Hのプライマー塗装を得た。
After washing with water and drying, it was heated to 80° C. for 30 minutes to complete curing by the cationic catalyst. Conductive BMC thus obtained
Water-soluble resin coating Melta (trade name, manufactured by Nippon Tokushu Toyo Co., Ltd.) was deposited on the molded product using an electrodeposition coating device (manufactured by Iwata Painting Machinery Co., Ltd.), and baked at 140° C. for 30 minutes. The adhesion of the resulting coating film was 100/1 according to the cross-cut test method.
00, and the impact resistance was 50 on a DuPont impact tester.
07x20cm passed, and water resistance was 40℃ and 240℃.
No blisters were observed even after the passage of time. Example 4 After polishing a commercially available hard vinyl chloride board with #400 sandpaper, the same primer resin composition as prepared in Example 1 was applied to a thickness of 15 μm, and then a high-pressure mercury lamp manufactured by Iwasaki Electric Co., Ltd. was used. (Effective output 80 watts/effective pipe length 1c
m/1 lamp), irradiation distance 15cms1 in air atmosphere
Ultraviolet irradiation was performed 5 times at a line speed of 3 m/min to completely cure the primer coating, resulting in a primer coating with a pencil hardness of H.

このプライマー上に実施例3の条件で銅皮膜を得た。A copper film was obtained on this primer under the conditions of Example 3.

充分洗浄乾・燥後、市販のラツカ一(商品名「ニツペア
クリル」日本ペイント製)を用い、日本工芸工業製の静
電塗装装置により膜厚50μになるように静電塗装を行
つた。常温で24時間乾燥後、得られた塗膜のゴバン目
試験法による密着性は100/100であつた。
After thorough washing and drying, electrostatic coating was performed using a commercially available Ratsukaichi (trade name "Nitsupe Acrylic" manufactured by Nippon Paint) to a film thickness of 50 μm using an electrostatic coating device manufactured by Nippon Kogei Kogyo. After drying at room temperature for 24 hours, the adhesion of the resulting coating film was 100/100 according to the cross-cut test method.

Claims (1)

【特許請求の範囲】[Claims] 1 1分子中に2個以上のチオール基を有する多価チオ
ール化合物(i)と、1分子中にチオール基と反応可能
な不飽和結合を1個より多く含む不飽和化合物(ii)
とを該チオール基と該不飽和結合の数の合計が4以上で
あるように選択してなる混合物またはこれらの付加反応
により生成するプレポリマーをプライマーとして、熱可
塑性または熱硬化性樹脂成形品上に塗布しゲル化または
硬化させ、該プライマー上に化学的方法で導電性の金属
皮膜を形成させ、これに静電塗装または電着塗装を行う
ことを特徴とする樹脂成形品の塗装方法。
1 Polyvalent thiol compound (i) having two or more thiol groups in one molecule, and unsaturated compound (ii) containing more than one unsaturated bond capable of reacting with a thiol group in one molecule
A mixture of and selected such that the total number of the thiol group and the unsaturated bond is 4 or more, or a prepolymer produced by an addition reaction of these, is used as a primer to form a thermoplastic or thermosetting resin molded product. A method for coating a resin molded article, which comprises coating the primer on the primer and gelling or curing it, forming a conductive metal film on the primer by a chemical method, and applying electrostatic coating or electrodeposition coating to this.
JP6919777A 1977-06-11 1977-06-11 How to paint resin molded products Expired JPS5942694B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6919777A JPS5942694B2 (en) 1977-06-11 1977-06-11 How to paint resin molded products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6919777A JPS5942694B2 (en) 1977-06-11 1977-06-11 How to paint resin molded products

Publications (2)

Publication Number Publication Date
JPS543884A JPS543884A (en) 1979-01-12
JPS5942694B2 true JPS5942694B2 (en) 1984-10-17

Family

ID=13395752

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6919777A Expired JPS5942694B2 (en) 1977-06-11 1977-06-11 How to paint resin molded products

Country Status (1)

Country Link
JP (1) JPS5942694B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59190218A (en) * 1983-04-12 1984-10-29 Ube Kagaku Kogyo Kk High-density magnesia clinker and its preparation

Also Published As

Publication number Publication date
JPS543884A (en) 1979-01-12

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