JPS63156574A - Method for coating polyphenylene oxide resin - Google Patents

Method for coating polyphenylene oxide resin

Info

Publication number
JPS63156574A
JPS63156574A JP61302778A JP30277886A JPS63156574A JP S63156574 A JPS63156574 A JP S63156574A JP 61302778 A JP61302778 A JP 61302778A JP 30277886 A JP30277886 A JP 30277886A JP S63156574 A JPS63156574 A JP S63156574A
Authority
JP
Japan
Prior art keywords
parts
resistance
resin
coating
polyphenylene oxide
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
Application number
JP61302778A
Other languages
Japanese (ja)
Inventor
Masahiko Yamanaka
雅彦 山中
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP61302778A priority Critical patent/JPS63156574A/en
Publication of JPS63156574A publication Critical patent/JPS63156574A/en
Pending legal-status Critical Current

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  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)

Abstract

PURPOSE:To improve the initial adhesion, hot water resistance, moisture resistance, etc., of a coat, by coating a two-pack urethane paint consisting of a polyol having specified hydroxyl value and mol.wt. and an isocyanate on the surface of a polyphenylene oxide resin to be coated. CONSTITUTION:The two-pack urethane paint consisting of a polyol having 20-60 hydroxyl value in KOH mg/g and 3,500-5,000mol.wt. and an isocyanate is coated on the surface of a polyethylene oxide to be coated. As a result, the initial adhesion, hot water resistance, moisture resistance, gasoline resistance, weatherability, alkali resistance, etc., of the coat can be improved. Besides, the number of stages of work can be reduced without requiring a primer as in the conventional process.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明はポリフェニレンオキサイド(PPO)樹脂への
塗装方法に関するものである。
DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a method for coating polyphenylene oxide (PPO) resin.

(従来の技術) ppo樹脂は機械的強度、電気的特性、耐熱性、耐水性
等の緒特性にすぐれているため、自動車分野をはじめと
し電気、通信分野等広範囲の用途に用いられている。こ
のようなPPO樹脂に塗装を施す場合には、通常次に示
す塗料が用いられている。
(Prior Art) PPO resin has excellent properties such as mechanical strength, electrical properties, heat resistance, and water resistance, so it is used in a wide range of applications including the automobile field, electricity, and communication fields. When painting such PPO resin, the following paints are usually used.

i)溶剤蒸発型塗料 有機溶剤が蒸発するだけで塗膜を形成する塗料で、この
ために樹脂自体は初めから分子量の相当高いものが用い
られている。
i) Solvent evaporation type paint A paint that forms a coating film simply by evaporation of an organic solvent, and for this reason, the resin itself used has a fairly high molecular weight from the beginning.

1i)2液エポキシ塗料 エポキシ樹脂(個々の分子中に2個以上のエポキシ基を
もつ樹脂)のもつ硬化機能を発揮させるため、アミン、
ポリアミド樹脂など活性水素をもつ物質を、使用直前に
添加するものである。
1i) Two-component epoxy paint In order to exhibit the curing function of epoxy resin (resin with two or more epoxy groups in each molecule), amine,
A substance containing active hydrogen, such as polyamide resin, is added immediately before use.

(発明が解決しようとする問題点) しかしながら上記溶剤蒸発型塗料および2液エポキシ塗
料を用いるppo樹脂への塗装方法にあっては、溶剤蒸
発型塗料の場合は該塗料が耐薬品性、耐傷付性および耐
候性が悪いため、これ等の特性が要求される場合には使
用することかてりきない。また2液エポキシ塗料の場合
も、耐候性が悪いため自動車外装部品等の厳しい性能が
要求される場合には更に上塗り塗料を塗布する必要があ
り、塗装工程が増加するという問8点がある。
(Problems to be Solved by the Invention) However, in the method of coating PPO resin using the above-mentioned solvent evaporation paint and two-component epoxy paint, in the case of a solvent evaporation paint, the paint has chemical resistance and scratch resistance. Because of its poor durability and weather resistance, it cannot be used when these properties are required. In addition, two-component epoxy paints also have poor weather resistance, so when severe performance is required, such as in automobile exterior parts, it is necessary to apply an additional top coat, which increases the number of painting steps.

(問題点を解決するための手段) 本発明者は、上記問題点を解決すべく種々研究の結果、
水酸基価20〜60KO)1■/g、分子M3゜500
〜5,000のポリオールとイソシアネートから成る2
液ウレタン塗料をポリフェニレンオキサイド(PPO)
樹脂の被塗装面に塗装する場合に、塗膜とppo樹脂と
の密着性が著しく良好であると共に上記問題点が解決さ
れることを確かめた。
(Means for Solving the Problems) As a result of various studies to solve the above problems, the present inventor has found that
Hydroxyl value 20-60KO) 1■/g, molecule M3゜500
~5,000 polyols and isocyanates2
Polyphenylene oxide (PPO) liquid urethane paint
When coating a resin surface, it was confirmed that the adhesion between the coating film and the PPO resin was extremely good and the above problems were solved.

(作 用) 上記2液ウレタン塗料において、ポリオールの水酸基価
が20より小さくなると塗料の粘着性、耐溶剤性が悪(
なり、一方60を越えるとppo樹脂素材との密着性が
低下して好ましくない。
(Function) In the above two-component urethane paint, if the hydroxyl value of the polyol is less than 20, the adhesiveness and solvent resistance of the paint will be poor (
On the other hand, if it exceeds 60, the adhesion to the PPO resin material decreases, which is not preferable.

またポリオールの分子量が3.500より小さくなると
粘着性が生じ、5,000を越えると塗装作業性が悪く
なり好ましくない。
Moreover, if the molecular weight of the polyol is less than 3.500, stickiness will occur, and if it exceeds 5,000, coating workability will deteriorate, which is not preferable.

上記ポリオールとしては27〜30重量%の無水フタル
酸を含むポリエステル樹脂を用いるのが好ましい。無水
フタル酸を27〜30重量%とするのは速乾性をもたせ
、PPO素材に密着性のよいラーカータイプに近づける
ためである。
As the polyol, it is preferable to use a polyester resin containing 27 to 30% by weight of phthalic anhydride. The reason why the phthalic anhydride content is 27 to 30% by weight is to provide quick-drying properties and to approximate a lurker type with good adhesion to the PPO material.

(実験例) 次に本発明を実施例および比較例により更に説明する。(Experiment example) Next, the present invention will be further explained with reference to Examples and Comparative Examples.

尚実施例および比較例における「部」及び「%」は特記
しない限り重量による。
Note that "parts" and "%" in Examples and Comparative Examples are by weight unless otherwise specified.

止較貫上 脱水縮合反応が可能なデカンタ−/還流冷却器を備えた
21のフラスコに100部のキシレンを供給した後無水
フタル酸197部、アジピン酸395部、エチレングリ
コール55部、トリメチロールプロパン306部を16
0〜210°Cの温度に加熱して生成する縮合水を連続
的に除去しながら6時間反応を行ないセロソルブアセテ
ートで希釈して分子量3,000、水酸基価60KO1
l mg/gのポリエステル樹脂を得た。このポリエス
テル樹脂(不発渾分60%) 60部に酸化チタン35
部、酢酸ブチル5部を加え、イソシアネート(住友バイ
エルウレタン(株)製、「スミジュールN75J)を1
5部加え、酢酸ブチル/トルエン=171のシンナー3
0部で希釈し、70X150 waのppo樹脂(エン
ジニアリング・プラスチック (株)製EBN9001
)板に塗装した。このようにして塗膜厚35μlの試験
片を得た。
After supplying 100 parts of xylene to 21 flasks equipped with a decanter/reflux condenser capable of a dehydration condensation reaction, 197 parts of phthalic anhydride, 395 parts of adipic acid, 55 parts of ethylene glycol, and trimethylolpropane were added. 306 copies to 16
The reaction was carried out for 6 hours while heating to a temperature of 0 to 210°C and condensation water produced was continuously removed, and diluted with cellosolve acetate to give a molecular weight of 3,000 and a hydroxyl value of 60 KO1.
1 mg/g of polyester resin was obtained. 60 parts of this polyester resin (60% unexploded content) and 35 parts of titanium oxide
1 part of butyl acetate, and 1 part of isocyanate ("Sumidur N75J" manufactured by Sumitomo Bayer Urethane Co., Ltd.).
Add 5 parts of butyl acetate/toluene = 171 thinner 3
Dilute with 0 parts and use 70 x 150 wa of PPO resin (EBN9001 manufactured by Engineering Plastics Co., Ltd.).
) painted on the board. In this way, a test piece with a coating thickness of 35 μl was obtained.

1指貫上 比較例1と同様なフラスコに100部のキシレンを供給
した後、無水フタル酸253部、アジピン酸254部、
ネオペンチルグリコール100部およびトリメチロール
プロパン305部を150〜190°Cに加熱して生成
する縮合水を連続的に除去しながら5時間反応を行ない
セロソルブアセテートで希釈して分子量4,500 、
水酸基価35KOHmg/gのポリエステル樹脂を得た
。このポリエステル樹脂(不揮発分60%)60部に、
酸化チタン35部、酢酸ブチル5部を加え、イソシアネ
ート、「スミジュールN75」を10部加え、酢酸ブチ
ル/トルエン=171のシンナー30部で希釈し、比較
例1と同様にしてppo樹脂板に塗布し試験片を得た。
After feeding 100 parts of xylene into a flask similar to Comparative Example 1, 253 parts of phthalic anhydride, 254 parts of adipic acid,
100 parts of neopentyl glycol and 305 parts of trimethylolpropane were heated to 150 to 190°C, the reaction was carried out for 5 hours while continuously removing the water of condensation produced, and the mixture was diluted with cellosolve acetate to give a molecular weight of 4,500.
A polyester resin having a hydroxyl value of 35 KOHmg/g was obtained. To 60 parts of this polyester resin (60% non-volatile content),
Add 35 parts of titanium oxide and 5 parts of butyl acetate, add 10 parts of isocyanate "Sumidur N75", dilute with 30 parts of butyl acetate/toluene = 171 thinner, and apply to a PPO resin board in the same manner as Comparative Example 1. A test piece was obtained.

実m% 比較例1と同様なフラスコに100部のキシレンを供給
した後無水フタル酸304部、アジピン酸280部を1
50〜190°Cの温度に加熱して生成する縮合水を連
続的に除去しながら反応を行ない、セロソルブアセテー
トで希釈して分子量5.000 、水酸基価20 K 
011■/gのポリエステル樹脂(不揮発分60%)を
得た。このポリエステル樹脂60部に酸化チタン35部
、酢酸ブチル5部を加え、更にイソシアネート「スミジ
ュールN75」を4部加え、酢酸ブチル/トルエン=1
71のシンナー30部で希釈し、比較例1と同様にして
PPO樹脂板に塗布し試験片を得た。
Actual m% After feeding 100 parts of xylene into a flask similar to Comparative Example 1, 304 parts of phthalic anhydride and 280 parts of adipic acid were added to 1
The reaction is carried out while continuously removing the condensed water produced by heating to a temperature of 50 to 190°C, and diluted with cellosolve acetate to give a molecular weight of 5.000 and a hydroxyl value of 20 K.
A polyester resin (non-volatile content: 60%) with a weight of 0.011 cm/g was obtained. To 60 parts of this polyester resin, 35 parts of titanium oxide and 5 parts of butyl acetate were added, and 4 parts of isocyanate "Sumidur N75" were added, and butyl acetate/toluene = 1
The mixture was diluted with 30 parts of No. 71 thinner and applied to a PPO resin plate in the same manner as in Comparative Example 1 to obtain a test piece.

尖膳拠主 比較例1と同様なフラスコに100部のキシレンを供給
した後、アジピン酸323部、無水フタル酸325部、
トリメチロールプロパン420 部ヲ160〜200°
Cの温度で加熱して生成する縮合水を連続的に除去しな
がら6時間反応を行ない、セロソルブアセテートで希釈
して分子ff13,500、水酸基価3oxoo mg
/gのポリエステル樹脂(不揮発分60%)を得た。こ
のポリエステル樹脂60部に酸化チタン35部、酢酸ブ
チル5部を加え、更にイソシアネート[スミジュールN
75」を8部加え、酢酸ブチル/トルエン=171のシ
ンナー30部で希釈し、比較例1と同様にしてppo樹
脂板に塗装して試験片を作製した。
After feeding 100 parts of xylene into a flask similar to Comparative Example 1, 323 parts of adipic acid, 325 parts of phthalic anhydride,
Trimethylolpropane 420 parts 160-200°
The reaction was carried out for 6 hours while continuously removing condensation water produced by heating at a temperature of
/g of polyester resin (non-volatile content: 60%) was obtained. To 60 parts of this polyester resin, 35 parts of titanium oxide and 5 parts of butyl acetate were added, and furthermore, isocyanate [Sumidur N
75'' was added, diluted with 30 parts of butyl acetate/toluene=171 thinner, and painted on a PPO resin board in the same manner as in Comparative Example 1 to prepare a test piece.

ル較斑I 比較例1と同様なフラスコに100部のキシレンを供給
した後、ポリエステル樹脂としてデスモフェン0670
 (分子量2000、水酸基価143、住友バイエルウ
レタン(株)製)35部とイソシアネート「スミジュー
ルN75J25部と、酸化チタン35部を加え、酢酸ブ
チル/トルエン=171のシンナー35部で希釈し、比
較例1と同様にしてppo樹脂板に塗装して試験片を作
製した。
Comparison I After feeding 100 parts of xylene into a flask similar to Comparative Example 1, Desmophene 0670 was added as a polyester resin.
Comparative Example A test piece was prepared by coating a PPO resin plate in the same manner as in 1.

上記実施例1〜3および比較例1〜2の試験片につき塗
膜性能を次の測定方法により評価し、得た結果を表1に
示す。
The coating film performance of the test pieces of Examples 1 to 3 and Comparative Examples 1 to 2 was evaluated by the following measuring method, and the obtained results are shown in Table 1.

(イ)初期密着性 試験片の塗膜面にマルチクロスカッタを用い素地に軽く
達する等間隔IIWの平行線をたがいに直交させて引き
、11u11平方の正方形を25個つくる。この状態で
幅に余裕のある粘着テープを密着させ上方に一気に引き
はがし塗面のはがれの生じない正方形の数を調べ、O:
 25/25 、X : 0/25として評価する。
(a) Initial adhesion On the coated surface of the test piece, use a multi-cross cutter to draw parallel lines at equal intervals IIW that lightly reach the substrate, orthogonal to each other, to create 25 11x11 squares. In this state, adhere a piece of adhesive tape that has enough width and peel it upwards at once to check the number of squares that will not peel off the painted surface.O:
25/25, X: Evaluated as 0/25.

(ロ)耐温水性 JISに54007.2に準拠し、試験片を40°Cの
温水中に240時間浸漬して測定する。
(b) Hot water resistance Measurement is performed by immersing a test piece in 40°C warm water for 240 hours in accordance with JIS 54007.2.

(ハ)耐湿性 温度、湿度とも調整可能な密閉箱を使用し、試験片を温
度50″C1相対湿度95%に調整した密閉箱に水平に
おき、24時間ごとにふくれの発生およびその変化の状
態を調べ240時間まで行う。
(c) Moisture resistance Use a sealed box in which both temperature and humidity can be adjusted. Place the test piece horizontally in the sealed box adjusted to a temperature of 50" C1 and relative humidity of 95%, and check the occurrence of blistering and its changes every 24 hours. Check the condition and continue for up to 240 hours.

(ニ)耐ガソリン性 JISに54007.7に準拠し、試験片を室温でガソ
リン中に30分浸漬して測定する。
(d) Gasoline resistance Measured according to JIS 54007.7 by immersing a test piece in gasoline at room temperature for 30 minutes.

(ホ)耐酸性 JIS K54007.5に準拠し、試験片を室温で1
%)1250.溶液中に4時間浸漬して測定する。
(E) Acid resistance In accordance with JIS K54007.5, test the test piece at room temperature.
%) 1250. Measurement is performed by immersing the sample in the solution for 4 hours.

(へ)耐アルカリ性 JISに54007.4に準拠し、試験片を室温で5%
NaOH溶液中に4時間浸漬して測定する。
(f) Alkali resistance In accordance with JIS 54007.4, the test piece is 5% at room temperature.
Measurement is performed by immersing in NaOH solution for 4 hours.

(ト)耐候性 サンシャインウエザオメータ(スガ試験機(株)製、5
Mカラーコンピューター)により測定する。
(G) Weather-resistant Sunshine Weather-Ometer (manufactured by Suga Test Instruments Co., Ltd., 5)
Measured using M color computer).

光沢保持率=試験後の光沢/初期光沢 ΔE−色差 表1 (発明の効果) 以上説明してきたように、この発明においては、ppo
樹脂の被塗装面に水酸基価20〜60KOHmg/gで
分子量3,500〜5,000のポリオールとイソシア
ネ′−トから成る2液ウレタン塗料を用いて塗装を行な
う構成としたことにより、表1からも明らかなように該
塗料がppo樹脂素材に対して優れた塗膜性能を有する
ため自動車外装部品のような厳しい性能が要求される場
所にも使用できる。
Gloss retention rate = Gloss after test / Initial gloss ΔE - Color difference table 1 (Effects of the invention) As explained above, in this invention, ppo
By using a two-component urethane paint consisting of polyol and isocyanate with a hydroxyl value of 20 to 60 KOHmg/g and a molecular weight of 3,500 to 5,000 to the resin surface to be coated, Table 1 shows that As is clear, this paint has excellent coating performance against PPO resin materials, so it can be used in places where strict performance is required, such as automobile exterior parts.

また、従来のようにブライマーを必要としないので、工
程削減もできるという効果が得られる。
Furthermore, unlike the conventional method, there is no need for a brimer, so it is possible to reduce the number of steps.

Claims (1)

【特許請求の範囲】[Claims] 1、ポリフェニレンオキサイド樹脂の被塗装面に、水酸
基価20〜60KOH mg/gでかつ分子量3,50
0〜5,000のポリオールとイソシアネートから成る
2液ウレタン塗料を塗布することを特徴とするポリフェ
ニレンオキサイド樹脂への塗装方法。
1. Apply polyphenylene oxide resin to the surface to be coated with a hydroxyl value of 20 to 60 KOH mg/g and a molecular weight of 3.50.
A method for coating polyphenylene oxide resin, which comprises applying a two-component urethane paint consisting of 0 to 5,000 polyol and isocyanate.
JP61302778A 1986-12-20 1986-12-20 Method for coating polyphenylene oxide resin Pending JPS63156574A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61302778A JPS63156574A (en) 1986-12-20 1986-12-20 Method for coating polyphenylene oxide resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61302778A JPS63156574A (en) 1986-12-20 1986-12-20 Method for coating polyphenylene oxide resin

Publications (1)

Publication Number Publication Date
JPS63156574A true JPS63156574A (en) 1988-06-29

Family

ID=17913005

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61302778A Pending JPS63156574A (en) 1986-12-20 1986-12-20 Method for coating polyphenylene oxide resin

Country Status (1)

Country Link
JP (1) JPS63156574A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104017476A (en) * 2014-05-30 2014-09-03 百川化工(如皋)有限公司 Production method of 180-level polyurethane wire enamel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104017476A (en) * 2014-05-30 2014-09-03 百川化工(如皋)有限公司 Production method of 180-level polyurethane wire enamel
CN104017476B (en) * 2014-05-30 2016-02-24 百川化工(如皋)有限公司 A kind of production method of 180 level polyurethane enamelled wire paints

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