JPH0790032A - Polyester resin composition - Google Patents
Polyester resin compositionInfo
- Publication number
- JPH0790032A JPH0790032A JP23463993A JP23463993A JPH0790032A JP H0790032 A JPH0790032 A JP H0790032A JP 23463993 A JP23463993 A JP 23463993A JP 23463993 A JP23463993 A JP 23463993A JP H0790032 A JPH0790032 A JP H0790032A
- Authority
- JP
- Japan
- Prior art keywords
- resin composition
- polyester resin
- resin
- present
- engineering plastic
- 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.)
- Withdrawn
Links
Landscapes
- Macromonomer-Based Addition Polymer (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、電子部品等の製造にお
いて主として成形材料として使用されるポリエステル樹
脂組成物に関する。TECHNICAL FIELD The present invention relates to a polyester resin composition mainly used as a molding material in the production of electronic parts and the like.
【０００２】[0002]
【従来の技術】従来、ＰＢＴ、ＰＰＳ等のエンジニアリ
ングプラスチック（以下エンプラと略す）によりコイル
等の電気部品が一体化されているエンプラ成形品をさら
に熱硬化性樹脂でモールドする場合には、一般にはエポ
キシ樹脂組成物が使用されているが、硬化に長時間を要
し、インライン化が困難であるという問題があり、短時
間で硬化可能な樹脂組成物でエンプラ成形品をモールド
することが望まれている。2. Description of the Related Art Conventionally, when an engineering plastic molded product in which electrical parts such as a coil are integrated with an engineering plastic (hereinafter abbreviated as engineering plastic) such as PBT or PPS is further molded with a thermosetting resin, it is generally used. Although an epoxy resin composition is used, there is a problem that it takes a long time to cure and it is difficult to make in-line, and it is desired to mold an engineering plastic molded product with a resin composition that can be cured in a short time. ing.
【０００３】一方、不飽和ポリエステル樹脂、重合性モ
ノマー、充填材及び補強繊維を含有するポリエステル樹
脂組成物はその優れた電気特性や短時間で硬化可能とい
う特性等のため成形材料として広く使用されている。し
かし、エンプラ成形品をモールドする場合は、ポリエス
テル樹脂組成物では密着性が劣り、その結果絶縁性が不
十分であるという問題があり、その改良が望まれている
のが現状である。On the other hand, a polyester resin composition containing an unsaturated polyester resin, a polymerizable monomer, a filler and a reinforcing fiber is widely used as a molding material because of its excellent electric characteristics and characteristics such that it can be cured in a short time. There is. However, in the case of molding an engineering plastic molded product, there is a problem that the polyester resin composition has poor adhesion and, as a result, insufficient insulating properties, and at present, improvement thereof is desired.
【０００４】[0004]
【発明が解決しようとする課題】上記の事情に鑑み、本
発明はポリエステル樹脂組成物を使用したエンプラ成形
品のモールド品の密着性及び絶縁性を改善することを課
題とし、その目的は密着性及び絶縁性が改善されたエン
プラ成形品のモールド品が得られるポリエステル樹脂組
成物を提供することにある。In view of the above circumstances, the present invention aims to improve the adhesiveness and insulating property of the molded product of the engineering plastic molded product using the polyester resin composition. Another object of the present invention is to provide a polyester resin composition capable of obtaining a molded product of an engineering plastic molded product having an improved insulating property.
【０００５】[0005]
【課題を解決するための手段】本発明のポリエステル樹
脂組成物は、エステル基含有樹脂、重合性モノマー、充
填材及び補強繊維を含有するポリエステル樹脂組成物に
おいて、エステル基含有樹脂の合計量に対しノボラック
骨格を有するビニルエステル樹脂が３０重量％以上含有
されていることを特徴とする。The polyester resin composition of the present invention is a polyester resin composition containing an ester group-containing resin, a polymerizable monomer, a filler and a reinforcing fiber, based on the total amount of the ester group-containing resin. 30% by weight or more of a vinyl ester resin having a novolac skeleton is contained.
【０００６】以下、本発明をより詳細に説明する。本発
明で用いられるエステル基含有樹脂には不飽和ポリエス
テル樹脂やビニルエステル樹脂等がある。不飽和ポリエ
ステル樹脂は不飽和二塩基酸と二価アルコールを主体と
してエステル化反応させて得られた樹脂であり、具体的
にはフマル酸、マレイン酸、イタコン酸等の不飽和二塩
基酸とエチレングリコール、プロピレングリコール、ブ
チレングリコール、１，５−ペンタンジオール、ジエチ
レングリコール、トリエチレングリコール、ビスフェノ
ールＡのプロピレンオキサイド付加物、ビスフェノール
Ａのエチレンオキサイド付加物等の二価アルコールを反
応して得られる。また、ビニルエステル樹脂としてはエ
ポキシ樹脂とアクリル酸またはメタクリル酸を成分とし
て得られるものが例示できる。The present invention will be described in more detail below. Examples of the ester group-containing resin used in the present invention include unsaturated polyester resin and vinyl ester resin. The unsaturated polyester resin is a resin obtained by subjecting an unsaturated dibasic acid and a dihydric alcohol to an esterification reaction, and specifically, unsaturated dibasic acids such as fumaric acid, maleic acid and itaconic acid, and ethylene. It is obtained by reacting a dihydric alcohol such as glycol, propylene glycol, butylene glycol, 1,5-pentanediol, diethylene glycol, triethylene glycol, a propylene oxide adduct of bisphenol A, or an ethylene oxide adduct of bisphenol A. Further, as the vinyl ester resin, one obtained by using an epoxy resin and acrylic acid or methacrylic acid as components can be exemplified.
【０００７】本発明で用いられるノボラック骨格を有す
るビニルエステル樹脂は、フェノールノボラックエポキ
シ樹脂、クレゾールノボラックエポキシ樹脂等のノボラ
ック骨格を有するエポキシ樹脂とアクリル酸またはメタ
クリル酸を成分として得られるものを使用することがで
きる。As the vinyl ester resin having a novolac skeleton used in the present invention, an epoxy resin having a novolak skeleton such as a phenol novolac epoxy resin or a cresol novolac epoxy resin and a resin obtained by using acrylic acid or methacrylic acid as a component should be used. You can
【０００８】本発明ではエステル基含有樹脂の合計量に
対しノボラック骨格を有するビニルエステル樹脂が３０
重量％以上含有されていることが重要であり、３０重量
％未満では、ポリエステル樹脂組成物を使用したエンプ
ラ成形品のモールド品の密着性改善の効果が顕著でなく
なる。In the present invention, the vinyl ester resin having a novolac skeleton is 30 with respect to the total amount of the ester group-containing resin.
It is important that the content is not less than 30% by weight, and if it is less than 30% by weight, the effect of improving the adhesiveness of the molded product of the engineering plastic molded product using the polyester resin composition is not remarkable.
【０００９】本発明で用いられる重合性モノマーとして
は、スチレン、ビニルトルエン、フタル酸ジアリル、酢
酸ビニル、アクリル酸エステル類、メタクリル酸エステ
ル類を例示できるが、スチレン系単量体が好ましい。Examples of the polymerizable monomer used in the present invention include styrene, vinyltoluene, diallyl phthalate, vinyl acetate, acrylic acid esters and methacrylic acid esters, but styrene-based monomers are preferred.
【００１０】本発明で用いられる充填材としては、例え
ば炭酸カルシウム、タルク、クレー、水酸化アルミニウ
ム等が使用される。また、本発明で用いられる補強繊維
としては、例えばガラス繊維、炭素繊維、アラミド繊
維、ビニロン繊維等が使用される。Examples of the filler used in the present invention include calcium carbonate, talc, clay, aluminum hydroxide and the like. As the reinforcing fiber used in the present invention, for example, glass fiber, carbon fiber, aramid fiber, vinylon fiber or the like is used.
【００１１】また、本発明では上記の原料の他に必要に
応じて、飽和ポリエステル樹脂、ウレタンオリゴマー、
イソシアネート、有機過酸化物、顔料、離型剤等の各種
添加剤を含有させることができる。In the present invention, in addition to the above raw materials, a saturated polyester resin, urethane oligomer, and
Various additives such as isocyanates, organic peroxides, pigments and release agents can be contained.
【００１２】[0012]
【実施例】以下、本発明の実施例を説明する。勿論、こ
の発明は下記の実施例に限らない。EXAMPLES Examples of the present invention will be described below. Of course, the present invention is not limited to the following embodiments.
【００１３】（実施例１、２及び比較例）各原料を表１
に示す配合割合で配合し、ニーダーを用いて混練し、ポ
リエステル樹脂組成物を得た。(Examples 1 and 2 and Comparative Example) Each raw material is shown in Table 1.
Were blended in the blending ratio shown in and kneaded with a kneader to obtain a polyester resin composition.
【００１４】[0014]
【表１】 [Table 1]
【００１５】表１中の、ノボラック系ビニルエステル樹
脂としてはフェノールノボラックエポキシ樹脂とメタク
リル酸を成分とする日本触媒社製の品番ＲＦ１０５１を
使用し、不飽和ポリエステル樹脂としてはフマル酸とビ
スフェノールＡのプロピレンオキサイド付加物を反応し
て得られたものを使用し、飽和ポリエステルとしては日
本触媒社製の品番ＡＴ６００Ｈを使用し、ウレタンオリ
ゴマーとしては旭硝子社製の商品名ユラロイＰＬ８５−
０５を使用した。In Table 1, as the novolac vinyl ester resin, a phenol novolac epoxy resin and a product number RF1051 manufactured by Nippon Shokubai Co., which contains methacrylic acid as components, are used. As the unsaturated polyester resin, fumaric acid and propylene of bisphenol A are used. The product obtained by reacting an oxide adduct is used, as the saturated polyester, product number AT600H manufactured by Nippon Shokubai Co., Ltd. is used, and as the urethane oligomer, the product name Urayalloy PL85- manufactured by Asahi Glass Co., Ltd. is used.
05 was used.
【００１６】得られたポリエステル樹脂組成物を用いて
図１に示すように、エンプラを用いて予め作製された１
７ｍｍ角の平板（２）上に金型を用いてポリエステル樹
脂組成物により１０ｍｍφの円柱状硬化物（１）を形成
して、密着強度測定用テストピースを作製した。このと
きの硬化条件は金型温度１５０℃、硬化時間６分とし
た。次いで得られたテストピースを用いて、図２に示す
ように、平板（２）を固定具（４）により固定し、ドリ
ルチャック状のつかみ治具（３）により円柱状硬化物
（１）をつかみ、引っ張り試験機により平板（２）と円
柱状硬化物（１）の密着強度を測定した。得られた結果
を表２に示す。なお、図２に示す矢印は引っ張り方向を
示す。As shown in FIG. 1, the polyester resin composition thus obtained was preliminarily prepared using engineering plastics 1
A 10 mmφ cylindrical cured product (1) was formed from the polyester resin composition on a 7 mm square flat plate (2) using a mold to prepare a test piece for measuring adhesion strength. The curing conditions at this time were a mold temperature of 150 ° C. and a curing time of 6 minutes. Then, using the obtained test piece, as shown in FIG. 2, the flat plate (2) was fixed by a fixture (4), and the columnar cured product (1) was fixed by a drill chuck-shaped gripping jig (3). The adhesion strength between the flat plate (2) and the columnar cured product (1) was measured with a grip and tensile tester. The obtained results are shown in Table 2. The arrow shown in FIG. 2 indicates the pulling direction.
【００１７】また、上記のテストピースとは別に、ソレ
ノイドコイルをエンプラで成形したエンプラ成形品を前
記のポリエステル樹脂組成物を用いてさらにモールドし
て、エンプラ成形品のモールド品を作製した。このとき
の条件は金型はトランスファー金型を用い、金型温度１
４０℃、硬化時間４分とした。次いで得られたエンプラ
成形品のモールド材について、表２に示す処理をした
後、水中浸漬状態で真空脱気し、端子部以外は水中に浸
漬した状態で電気絶縁性を測定し、得られた結果を表２
に示す。なお、電気絶縁性については測定値が１００Ｍ
Ω以上であれば絶縁性は劣化していないと見なしてい
る。Separately from the above test piece, an engineering plastic molded product obtained by molding a solenoid coil with engineering plastic was further molded using the above polyester resin composition to produce a molded product of the engineering plastic molded product. The condition at this time is that the mold is a transfer mold and the mold temperature is 1
The temperature was 40 ° C. and the curing time was 4 minutes. Then, the molding material of the obtained engineering plastic molded product was subjected to the treatment shown in Table 2 and then degassed in vacuum under the condition of being immersed in water, and the electrical insulating property was measured under the condition of being immersed in water except for the terminal portion. The results are shown in Table 2.
Shown in. The measured value for electrical insulation is 100M.
If it is Ω or more, it is considered that the insulation is not deteriorated.
【００１８】[0018]
【表２】 [Table 2]
【００１９】表２の結果から、エステル基含有樹脂の合
計量の３０重量％以上のノボラック系ビニルエステル樹
脂を含有している実施例１及び２はノボラック系ビニル
エステル樹脂を含有していない比較例に比べ、密着強度
及び絶縁性が向上していることが確認された。From the results shown in Table 2, Examples 1 and 2 containing 30% by weight or more of the total amount of the ester group-containing resin contained a novolac vinyl ester resin, and Comparative Examples containing no novolac vinyl ester resin. It was confirmed that the adhesive strength and the insulating property were improved as compared with the above.
【００２０】[0020]
【発明の効果】本発明のポリエステル樹脂組成物はエス
テル基含有樹脂の合計量に対しノボラック骨格を有する
ビニルエステル樹脂が３０重量％以上含有されているの
で、本発明のポリエステル樹脂組成物を使用したエンプ
ラ成形品のモールド品は密着性及び絶縁性が改善され
る。Since the polyester resin composition of the present invention contains 30% by weight or more of the vinyl ester resin having a novolak skeleton with respect to the total amount of the ester group-containing resin, the polyester resin composition of the present invention was used. Adhesiveness and insulating properties of molded plastic products are improved.
【図１】本発明の実施例及び比較例の密着強度測定用テ
ストピースの斜視図である。FIG. 1 is a perspective view of a test piece for measuring adhesion strength according to an example of the present invention and a comparative example.
【図２】本発明の実施例及び比較例の密着強度測定の原
理を示す断面図である。FIG. 2 is a cross-sectional view showing the principle of adhesion strength measurement in Examples and Comparative Examples of the present invention.
１ 円柱状硬化物 ２ 平板 ３ つかみ治具 ４ 固定具 1 Cylindrical cured product 2 Flat plate 3 Grasping jig 4 Fixing tool
Claims (1)
充填材及び補強繊維を含有するポリエステル樹脂組成物
において、エステル基含有樹脂の合計量に対しノボラッ
ク骨格を有するビニルエステル樹脂が３０重量％以上含
有されていることを特徴とするポリエステル樹脂組成
物。1. An ester group-containing resin, a polymerizable monomer,
A polyester resin composition containing a filler and a reinforcing fiber, wherein a vinyl ester resin having a novolac skeleton is contained in an amount of 30% by weight or more based on the total amount of the ester group-containing resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23463993A JPH0790032A (en) | 1993-09-21 | 1993-09-21 | Polyester resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23463993A JPH0790032A (en) | 1993-09-21 | 1993-09-21 | Polyester resin composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0790032A true JPH0790032A (en) | 1995-04-04 |
Family
ID=16974185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23463993A Withdrawn JPH0790032A (en) | 1993-09-21 | 1993-09-21 | Polyester resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0790032A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7582077B2 (en) | 2004-03-31 | 2009-09-01 | Uni-Charm Corporation | Wearing article |
-
1993
- 1993-09-21 JP JP23463993A patent/JPH0790032A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7582077B2 (en) | 2004-03-31 | 2009-09-01 | Uni-Charm Corporation | Wearing article |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20001128 |