JPH1180527A - Unsaturated polyester resin composition - Google Patents
Unsaturated polyester resin compositionInfo
- Publication number
- JPH1180527A JPH1180527A JP23504197A JP23504197A JPH1180527A JP H1180527 A JPH1180527 A JP H1180527A JP 23504197 A JP23504197 A JP 23504197A JP 23504197 A JP23504197 A JP 23504197A JP H1180527 A JPH1180527 A JP H1180527A
- Authority
- JP
- Japan
- Prior art keywords
- unsaturated polyester
- polyester resin
- resin composition
- resin
- component
- 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
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polyesters Or Polycarbonates (AREA)
- Macromonomer-Based Addition Polymer (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、高湿度下において
外観の変化、電気特性の低下が少ない不飽和ポリエステ
ル樹脂成形材料を提供するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides an unsaturated polyester resin molding material which has little change in appearance and lowering of electric characteristics under high humidity.
【０００２】[0002]
【従来の技術】不飽和ポリエステルはフェノール樹脂、
エポキシ樹脂、ジアリルフタレート樹脂等に比較して絶
縁破壊強さ、絶縁抵抗、耐トラッキング性、耐アーク性
等電気特性が高位にバランスしているため重電機器、自
動車電装部品等の絶縁部品用に広く使用されてきた。一
方で、構造的にエステル結合を多くもつ不飽和ポリエス
テル樹脂は長期高湿度雰囲気下では、加水分解が避けら
れず、エポキシ樹脂、ジアリルフタレート樹脂といった
耐湿性の良い材料を使わざるを得ないという分野が多い
のも事実であった。2. Description of the Related Art Unsaturated polyesters are phenolic resins,
Compared to epoxy resin, diallyl phthalate resin, etc., electrical properties such as dielectric strength, insulation resistance, tracking resistance, arc resistance, etc. are balanced at a high level, so they are used for insulating parts such as heavy electrical equipment, automotive electrical parts, etc. Widely used. On the other hand, unsaturated polyester resin, which has many ester bonds in its structure, is inevitably hydrolyzed under long-term high humidity atmosphere, and has to use materials with good moisture resistance such as epoxy resin and diallyl phthalate resin. It was also a fact that there were many.
【０００３】これら耐湿性の改善のため、ガラス繊維な
ど無機フィラーの高充填化、ジアリルフタレートプレポ
リマーの併用などの手法も用いられるものの、耐燃性の
低下、成形性の低下、コストアップ等の問題があり十分
に満足が得られるというものではなかった。In order to improve the moisture resistance, techniques such as high filling of inorganic fillers such as glass fibers and the combined use of diallyl phthalate prepolymer are also used. However, problems such as a decrease in flame resistance, a decrease in moldability, and an increase in cost are required. However, it was not enough to obtain satisfaction.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、高湿度雰囲
気下において、外観の変化、電気特性の低下が少ない不
飽和ポリエステル樹脂組成物及びこれをもとにした成形
材料を提供することを目的とするものである。SUMMARY OF THE INVENTION It is an object of the present invention to provide an unsaturated polyester resin composition which is less likely to change its appearance and lower its electrical properties under a high humidity atmosphere, and to provide a molding material based thereon. It is assumed that.
【０００５】[0005]
【課題を解決するための手段】本発明は、樹脂原料のグ
リコール成分としてネオペンチルグリコール又は１，４
シクロヘキサンジメタノールを用い酸価が２０〜５０ｍ
ｇＫＯＨであることを特徴とする不飽和ポリエステル樹
脂組成物、及び上記組成物を含み且つ成形材料中に樹脂
成分として、ジアリルフタレートプレポリマーを含まな
い事を特徴とする不飽和ポリエステル樹脂成形材料に関
するものである。According to the present invention, neopentyl glycol or 1,4 is used as a glycol component of a resin raw material.
Acid value is 20-50m using cyclohexanedimethanol
gKOH, and an unsaturated polyester resin molding material containing the above composition and not containing a diallyl phthalate prepolymer as a resin component in the molding material. It is.
【０００６】ここで使用する不飽和ポリエステル樹脂
は、グリコール成分としてネオペンチルグリコール又は
１，４−シクロヘキサンジメタノールを用いたものであ
る。これらのグリコールから得られた不飽和ポリエステ
ル樹脂は架橋密度が高く、かつ構造的にエステル部分の
結合力が強いため、耐加水分解性が良好となり、一般的
に使用されるエチレングリコール、プロピレングリコー
ル等に比べ良好な耐加水分解性をしめす。酸価は２０〜
５０ｍｇＫＯＨが望ましく、２０ｍｇＫＯＨ未満では十
分な硬化性を得られず、得られた成形品が十分な耐湿性
を発揮することができない。また５０ｍｇＫＯＨを越え
ると、硬化が早すぎ、成形性が低下するため実用的では
ない。The unsaturated polyester resin used here uses neopentyl glycol or 1,4-cyclohexanedimethanol as a glycol component. Unsaturated polyester resins obtained from these glycols have a high crosslinking density and a strong bonding force of the ester moiety structurally, so that they have good hydrolysis resistance, and generally used ethylene glycol, propylene glycol and the like. Has better hydrolysis resistance than that of. Acid value is 20 ~
50 mgKOH is desirable. If it is less than 20 mgKOH, sufficient curability cannot be obtained, and the obtained molded product cannot exhibit sufficient moisture resistance. On the other hand, if it exceeds 50 mgKOH, the curing is too fast and the moldability is lowered, so that it is not practical.
【０００７】不飽和ポリエステル樹脂にジアリルフタレ
ートプレポリマーを加えることで耐加水分解性を向上す
ることは可能であるが、粘度上昇、熱安定性の低下、コ
ストアップ等の問題があり、必ずしも満足できるもので
はない。本発明の不飽和ポリエステル樹脂組成物では、
ジアリルフタレートプレポリマーを加えなくても、通常
の不飽和ポリエステル樹脂と良好な耐加水分解性を示
す。Although the hydrolysis resistance can be improved by adding a diallyl phthalate prepolymer to an unsaturated polyester resin, there are problems such as an increase in viscosity, a decrease in thermal stability, an increase in cost, and the like, which is not always satisfactory. Not something. In the unsaturated polyester resin composition of the present invention,
Even without adding diallyl phthalate prepolymer, it shows good hydrolysis resistance with ordinary unsaturated polyester resin.
【０００８】架橋剤としては、例えばスチレン、ジアリ
ルフタレートモノマー、メタクリル酸メチルエステル、
ジビニルベンゼン、アクリルアミド、ビニルトルエン、
モノクロルスチレン、アクリロニトリルなどのビニル系
単量体、などの通常のものが用いられるが、ジアリルフ
タレートプレポリマーを用いる必要はない。反応開始剤
としては、例えばベンゾイルパーオキサイド、ラウロイ
ルパーオキサイド、ブチルパーオキシブタン、ジ−ｔ−
ブチルパーオキシイソフタレート、ジクミルパーオキサ
イド（ＤＣＰ）、２，５−ジメチルヘキサン−２，５−
ジハイドロパーオキサイド、ｔ−ブチルパーオキシベン
ゾエート、メチルエチルケトンパーオキサイドなどの過
酸化物が用いられる。Examples of the crosslinking agent include styrene, diallyl phthalate monomer, methacrylic acid methyl ester,
Divinylbenzene, acrylamide, vinyltoluene,
Conventional monomers such as monochlorostyrene and vinyl monomers such as acrylonitrile are used, but it is not necessary to use diallyl phthalate prepolymer. Examples of the reaction initiator include benzoyl peroxide, lauroyl peroxide, butyl peroxybutane, and di-t-
Butyl peroxyisophthalate, dicumyl peroxide (DCP), 2,5-dimethylhexane-2,5-
A peroxide such as dihydroperoxide, t-butylperoxybenzoate, or methyl ethyl ketone peroxide is used.
【０００９】使用する無機基材については、特に制限さ
れるものではないが、強度向上のためにガラス繊維、耐
燃性の付与のために、水酸化アルミニウム、クレー、充
填材として炭酸カルシウムといったものが使用される。
さらに成形性向上のため必要に応じて、パルプ、粉砕布
といった有機フィラーも併用することもできる。The inorganic substrate to be used is not particularly limited, but glass fibers for improving strength, aluminum hydroxide and clay for imparting flame resistance, and calcium carbonate as filler are used. used.
Further, if necessary, an organic filler such as pulp or crushed cloth can be used in combination for improving formability.
【００１０】成形材料化には一般的な方法・工程が使用
でき、加熱ロール、加圧ロール、２軸押出し機等を用い
て混練し、更に粉砕あるいは造粒して得られる。A general method and process can be used for forming a molding material, and it is obtained by kneading using a heating roll, a pressure roll, a twin-screw extruder or the like, and further pulverizing or granulating.
【実施例】以下、実施例及び比較例により本発明を説明
する。表１及び表２に成形材料の配合を示す。かかる組
成の配合物を９０℃の熱ロールで混練、シート化し、冷
却、粉砕して成形材料を得た。The present invention will be described below with reference to examples and comparative examples. Tables 1 and 2 show the composition of the molding materials. The compound having such a composition was kneaded with a hot roll at 90 ° C., formed into a sheet, cooled and pulverized to obtain a molding material.
【００１１】[0011]
【表１】 [Table 1]
【００１２】[0012]
【発明の効果】上記の実施例及び比較例からも明らかな
ように、本発明の不飽和ポリエステル樹脂成形材料は高
湿度下において外観の変化、電気特性の低下が少なく重
電機器、自動車電装部品等の絶縁部品用に使用される。As is clear from the above Examples and Comparative Examples, the unsaturated polyester resin molding material of the present invention has little change in appearance and deterioration of electric characteristics under high humidity, and has little electric equipment and electric parts for automobiles. Used for insulating parts such as.
Claims (2)
ンチルグリコール又は１，４−シクロヘキサンジメタノ
ールを用い酸価が２０〜５０ｍｇＫＯＨであることを特
徴とする不飽和ポリエステル樹脂組成物。1. An unsaturated polyester resin composition comprising neopentyl glycol or 1,4-cyclohexane dimethanol as a glycol component of a resin raw material and having an acid value of 20 to 50 mg KOH.
含み、且つ樹脂成分として、ジアリルフタレートプレポ
リマーを含まない事を特徴とする不飽和ポリエステル樹
脂成形材料。2. An unsaturated polyester resin molding material comprising the resin composition according to claim 1 as an essential component and not containing a diallyl phthalate prepolymer as a resin component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23504197A JPH1180527A (en) | 1997-08-29 | 1997-08-29 | Unsaturated polyester resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23504197A JPH1180527A (en) | 1997-08-29 | 1997-08-29 | Unsaturated polyester resin composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1180527A true JPH1180527A (en) | 1999-03-26 |
Family
ID=16980215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23504197A Pending JPH1180527A (en) | 1997-08-29 | 1997-08-29 | Unsaturated polyester resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1180527A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002003591A (en) * | 2000-06-23 | 2002-01-09 | Toyobo Co Ltd | Flame-retarded polyester resin, adhesive and method of producing the same |
| JP2002003587A (en) * | 2000-06-21 | 2002-01-09 | Toyobo Co Ltd | Flame-retarded polyester resin for adhesive and adhesive thereof |
| JP2002003588A (en) * | 2000-06-23 | 2002-01-09 | Toyobo Co Ltd | Flame-retardant polyester resin and adhesive thereof |
-
1997
- 1997-08-29 JP JP23504197A patent/JPH1180527A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002003587A (en) * | 2000-06-21 | 2002-01-09 | Toyobo Co Ltd | Flame-retarded polyester resin for adhesive and adhesive thereof |
| JP2002003591A (en) * | 2000-06-23 | 2002-01-09 | Toyobo Co Ltd | Flame-retarded polyester resin, adhesive and method of producing the same |
| JP2002003588A (en) * | 2000-06-23 | 2002-01-09 | Toyobo Co Ltd | Flame-retardant polyester resin and adhesive thereof |
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