JPH0391518A - Unsaturated polyester resin molding material - Google Patents

Unsaturated polyester resin molding material

Info

Publication number
JPH0391518A
JPH0391518A JP22758889A JP22758889A JPH0391518A JP H0391518 A JPH0391518 A JP H0391518A JP 22758889 A JP22758889 A JP 22758889A JP 22758889 A JP22758889 A JP 22758889A JP H0391518 A JPH0391518 A JP H0391518A
Authority
JP
Japan
Prior art keywords
unsaturated polyester
flash point
molding material
polyester resin
resin molding
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
JP22758889A
Other languages
Japanese (ja)
Inventor
Soshichi Tawara
田原 荘七
Hisashi Oshima
久 大島
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 JP22758889A priority Critical patent/JPH0391518A/en
Publication of JPH0391518A publication Critical patent/JPH0391518A/en
Pending legal-status Critical Current

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  • Macromonomer-Based Addition Polymer (AREA)

Abstract

PURPOSE:To obtain the title material which is lowly inflammable and is out of the category of hazardous materials specified in the Fire Services Act by incorporating a monomer of a flash point <=40 deg.C and a monomer of a flash point >40 deg.C in an amount in a specified range in a molding material as a polymerizable monomer. CONSTITUTION:A molding material comprising 5-20wt.% unsaturated polyester, 5-20wt.% polymerizable monomer, 40-75wt.% filler, 0-10wt.% shrinkage- decreasing agent and 5-30wt.% fibrous reinforcement, wherein the polymerizable monomer comprises at most 8wt.%, based on the molding material, monomer of a flash point <=40 deg.C (e.g. styrene monomer) and 1-20wt.%, based on the molding material, monomer of a flash point >40 deg.C (e.g. diallyl maleate). In this way, the title material which has a flash point >=40 deg.C, is out of the category of hazardous materials specified in the Fire Services Act and has good moldability can be obtained.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は引火点の高い不飽和ポリエステル樹脂成形材料
に関するもので、詳しくは、引火点が40℃以上で引火
しにくい不飽和ポリエステル樹脂成形材料に関するもの
である。
Detailed Description of the Invention (Industrial Field of Application) The present invention relates to an unsaturated polyester resin molding material with a high flash point, and more specifically, an unsaturated polyester resin molding material with a flash point of 40° C. or higher and which is difficult to catch fire. It is related to.

(従来の技術) 不飽和ポリエステル樹脂はタンク、波板、パイプ、バス
タブなどの強化プラスチックを始め化粧板、塗料、電気
絶縁材料などに広く利用されている。
(Prior Art) Unsaturated polyester resins are widely used in reinforced plastics such as tanks, corrugated sheets, pipes, and bathtubs, decorative boards, paints, and electrical insulation materials.

不飽和ポリエステル樹脂成形材料としては、−般にプリ
ミックス、バルクモールディングコンパウンド、シート
モールデイングコンパウンドなどとして知られており、
自動車部品、建築資材、電気部品、精密部品などの用途
に広く利用されている。
Unsaturated polyester resin molding compounds are generally known as premixes, bulk molding compounds, sheet molding compounds, etc.
It is widely used in applications such as automobile parts, construction materials, electrical parts, and precision parts.

ところが、不飽和ポリエステル樹脂成形材料には架橋剤
として添加されている重合性単量体の引火点はスチレン
モノマーの如く、一般に低いものが多く使用されている
However, many polymerizable monomers added as crosslinking agents to unsaturated polyester resin molding materials generally have low flash points, such as styrene monomers.

従って不飽和ポリエステル樹脂成形材料の引火点は32
−40℃である。
Therefore, the flash point of unsaturated polyester resin molding material is 32
-40°C.

しかし、昭和63年S月24日(法律第55号)公布さ
れ、平成2年5月238施行される予定の消防法による
と、不飽和ポリエステル樹脂成形材料は第2類可燃性固
体で、固形アルコール、その他−気圧において、引火点
が40℃未満と規定している引火性固体に該当する恐れ
がある。
However, according to the Fire Service Act, which was promulgated on S. 24, 1988 (Law No. 55) and is scheduled to come into force on May 238, 1990, unsaturated polyester resin molding materials are class 2 flammable solids, and solid Alcohol and others - At atmospheric pressure, there is a possibility that it falls under the category of flammable solids, which are stipulated to have a flash point of less than 40°C.

もし、引火性固体に該当し、その規制を受けることにな
ると、不飽和ポリエステル樹脂成形材料の貯蔵や取扱い
について、大幅な規制を受けることになる。
If it falls under the category of flammable solid and is subject to such regulations, the storage and handling of unsaturated polyester resin molding materials will be subject to significant regulations.

不飽和ポリエステル樹脂成形材料で前記した成形品を成
形する成形メーカーや不飽和ポリエステル樹脂成形材料
を貯蔵する倉庫業者は法律で定められた取り扱い基準を
守るために、莫大な設備投資をしなければならず、大き
な負担となるばかりでなく、成形品の大幅なコストアッ
プをもたらす。
Molding manufacturers who mold the above-mentioned molded products using unsaturated polyester resin molding materials and warehouse operators who store unsaturated polyester resin molding materials must make huge capital investments in order to comply with the handling standards stipulated by law. This not only creates a large burden, but also significantly increases the cost of the molded product.

(発明が解決しようとする課題) 本発明の目的は前記の従来技術の欠点を除去して、引火
点を消防法の危険物の指定を受けない40℃以上にした
成形性良好な不飽和ポリエステル樹脂成形材料を提供す
ることにある。
(Problems to be Solved by the Invention) The purpose of the present invention is to eliminate the drawbacks of the above-mentioned prior art, and to produce an unsaturated polyester with good moldability that has a flash point of 40°C or higher, which is not designated as a hazardous material by the Fire Service Act. Our objective is to provide resin molding materials.

(課題を解決するための手段) 本発明は、 (A)  不飽和ポリエステル5〜20重量%、(B)
  重合性単量体5〜20重量%、(C)  充填剤4
0〜75重量%。
(Means for Solving the Problems) The present invention comprises: (A) 5 to 20% by weight of unsaturated polyester; (B)
Polymerizable monomer 5 to 20% by weight, (C) filler 4
0-75% by weight.

(D)  低収縮剤0〜10重量%及び(E)  繊維
状補強材5〜30重量%からなる成形材料において、重
合性単量体として引火点40℃以下の単量体を成形材料
中8重量%以下で且つ引火点40”Cより高い単量体を
成形材料中1〜20重量%の範囲で用いることを特徴と
する引火点が40℃以上である不飽和ポリエステル樹脂
成形材料である。
In a molding material consisting of (D) 0 to 10% by weight of a low shrinkage agent and (E) 5 to 30% by weight of a fibrous reinforcing material, a monomer with a flash point of 40°C or lower is contained as a polymerizable monomer in the molding material. This is an unsaturated polyester resin molding material having a flash point of 40"C or higher, characterized in that a monomer with a flash point higher than 40"C is used in the molding material in an amount of 1 to 20% by weight.

本発明者らは不飽和ポリエステル樹脂成形材料中に、含
有する引火点40”C以下の共重合性単量体が8%以下
であれば不飽和ポリエステル樹脂成形材料の引火点は4
0℃以上となり、危険物の第2類可燃性固体の引火性固
体に該当せず、その取扱いが大幅に緩和されることを見
出だした。
The present inventors believe that if the unsaturated polyester resin molding material contains 8% or less of a copolymerizable monomer with a flash point of 40"C or less, the flash point of the unsaturated polyester resin molding material is 4.
It has been found that the temperature reaches 0°C or higher, and it does not fall under the class 2 flammable solids of dangerous substances, which greatly eases its handling.

しかし、引火点40℃以下の共重合性単量体を8%以下
にした不飽和ポリエステル樹脂成形材料は非常に固く、
金型に入れて成形する時に、高い成形圧力を必要とする
ばかりでなく、不飽和ポリエステル樹脂成形材料の流動
性が悪く、欠陥のない成形品は出来ない0本発明者らは
、更に、引火点が40℃以上で、不飽和ポリエステルと
共重合性のある単量体を併用することにより、不飽和ポ
リエステル樹脂成形材料の流動性を改良し、更に。
However, unsaturated polyester resin molding materials containing 8% or less of copolymerizable monomers with a flash point of 40°C or lower are extremely hard.
In addition to requiring high molding pressure when molding in a mold, the fluidity of the unsaturated polyester resin molding material is poor, making it impossible to mold a defect-free molded product. By using a copolymerizable monomer with an unsaturated polyester at a temperature of 40°C or higher, the fluidity of the unsaturated polyester resin molding material is improved.

不飽和ポリエステル樹脂成形材料の引火点を40℃以上
に上げることを合わせて見出だし1本発明に至ったので
ある。
Together with raising the flash point of the unsaturated polyester resin molding material to 40° C. or higher, the present invention under the heading 1 was achieved.

本発明で使用される不飽和ポリエステルは酸成分と多価
アルコールとを、常法により、重縮合反応させることに
より得られる。
The unsaturated polyester used in the present invention can be obtained by subjecting an acid component and a polyhydric alcohol to a polycondensation reaction using a conventional method.

酸成分である不飽和多塩基酸としては1例えば無水マレ
イン酸、フマル酸、イタコン酸等が使用される。
As the unsaturated polybasic acid which is the acid component, for example, maleic anhydride, fumaric acid, itaconic acid, etc. are used.

また、所望により酸成分として、併用される飽和多塩基
酸としては、無水フタル酸、イソフタル酸、テレフタル
酸、コハク酸、アジピン酸等が使用される。
Further, as the saturated polybasic acid used in combination as an acid component if desired, phthalic anhydride, isophthalic acid, terephthalic acid, succinic acid, adipic acid, etc. are used.

一方、多価アルコールとしてはエチレングリコール、プ
ロピレングリコール、ネオペンチルグリコール、ビスフ
ェノールA1等の単独又は2〜3種類の併用で使用され
る。
On the other hand, as the polyhydric alcohol, ethylene glycol, propylene glycol, neopentyl glycol, bisphenol A1, etc. are used alone or in combination of two or three types.

本発明に使用される共重合性単量体としては、メチルメ
タクリレート、酢酸ビニル、スチレンモノマーなどが使
用されるが、最も安価で、反応性に富み、最も優れた共
重合性単量体として、広くスチレンモノマーが使用され
ている。
As the copolymerizable monomer used in the present invention, methyl methacrylate, vinyl acetate, styrene monomer, etc. are used, but as the cheapest, most reactive, and most excellent copolymerizable monomer, Styrene monomers are widely used.

しかし、スチレンモノマーの引火点は32℃であり、ま
た不飽和ポリエステル樹脂成形材料に含まれるスチレン
モノマーの量は普通8%以上であるため、不飽和ポリエ
ステル樹脂成形材料の引火点は40℃以下となる。
However, the flash point of styrene monomer is 32°C, and the amount of styrene monomer contained in unsaturated polyester resin molding materials is usually 8% or more, so the flash point of unsaturated polyester resin molding materials is 40°C or lower. Become.

充填剤としては、炭酸力ルシュウム、クレー水酸化アル
ミニュウム、硫酸バリウム、などの無機化合物がある。
Examples of fillers include inorganic compounds such as lucium carbonate, clay aluminum hydroxide, and barium sulfate.

低収縮剤としては、ポリスチレン、ポリ酢酸ビニル、ポ
リメタクリル酸メチル、飽和ポリエステル、あるいはポ
リブタジェン−スチレン共重合物等が使用される。
As the low shrinkage agent, polystyrene, polyvinyl acetate, polymethyl methacrylate, saturated polyester, polybutadiene-styrene copolymer, etc. are used.

繊維状補強材としては、ガラス繊維や合成繊維等が使用
されている。
Glass fibers, synthetic fibers, etc. are used as the fibrous reinforcing material.

本発明の不飽和ポリエステル樹脂成形材料には、上記し
た各成分の他に、硬化の為に通常用いられるジ−t−ブ
チルパーオキサイド、ジクミルパーオキサイド、ラウロ
イルパーオキサイド等の公知の硬化剤が使用される。
In addition to the above-mentioned components, the unsaturated polyester resin molding material of the present invention contains known curing agents such as di-t-butyl peroxide, dicumyl peroxide, and lauroyl peroxide, which are commonly used for curing. used.

また、必要に応じて、ステアリン酸亜鉛、ステアリン酸
カルシュウム、ステアリン酸アルミニュウムの如き内部
離型剤、ハイドロキノン、p−ベンゾキノン、t−ブチ
ルカテコールなどの安定剤、酸化マグネシュウム、水酸
化カルシュラムなどの増粘剤、各種の着色剤などの公知
の添加剤を配合しても差し支えない。
In addition, if necessary, internal mold release agents such as zinc stearate, calcium stearate, and aluminum stearate, stabilizers such as hydroquinone, p-benzoquinone, and t-butylcatechol, and thickeners such as magnesium oxide and calcium hydroxide may be added. Known additives such as coloring agents and various coloring agents may be added.

本発明の目的は40℃以下の引火点の共重合性単量体を
8%以下とし、その時に出てくる不飽和ポリエステル樹
脂成形材料の流動性不良を、40℃以上の共重合性単量
体を加えることにより改善し、不飽和ポリエステル樹脂
成形材料の引火点を40℃以上にすることにあるが、本
発明の目的を達成する為に使用する引火点が40℃以上
の共重合性単量体としては、アリルアルコールから誘導
されるもので、マレイン酸ジアリル、アジピン酸ジアリ
ル、安息香酸アリル、ジアリルフタレート(166℃引
火点、以下同じ)、ジアリルイソフタレート(340℃
)、イソシアヌル酸アリル等がある。また、ビニルトル
エン(171℃)、α−メチルスチレン(165℃)な
どのスチレン誘導体、トリメチロールプロパンメタクリ
レート(181’C)などのメタクリル酸やアクリル酸
のエステル化合物等が挙げられ、これらの単独又は2〜
3種を併用することも出来る。
The purpose of the present invention is to reduce the amount of copolymerizable monomers with a flash point of 40°C or lower to 8% or less, and to reduce the poor flowability of the unsaturated polyester resin molding material produced at that time. The objective of the present invention is to improve the flash point of the unsaturated polyester resin molding material by adding a polymer to 40°C or higher. The polymers are those derived from allyl alcohol, including diallyl maleate, diallyl adipate, allyl benzoate, diallyl phthalate (flash point 166°C, same hereinafter), diallyl isophthalate (340°C).
), allyl isocyanurate, etc. Other examples include styrene derivatives such as vinyltoluene (171°C) and α-methylstyrene (165°C), ester compounds of methacrylic acid and acrylic acid such as trimethylolpropane methacrylate (181'C), and these may be used alone or 2~
It is also possible to use three types in combination.

云うまでもなく引火点が40℃以上の上記共重合性単量
体の量を増加させると不飽和ポリエステル樹脂成形材料
の引火点は上昇し、本目的を達成するが、コスト高にな
ったり品質が過剰になるなど、やや汎用性に欠ける点が
出てくる。
Needless to say, if the amount of the copolymerizable monomer with a flash point of 40°C or higher is increased, the flash point of the unsaturated polyester resin molding material will be increased, and this objective will be achieved, but the cost will increase and the quality will deteriorate. There are some points where it lacks versatility, such as excessive numbers.

実施例 実施例を挙げ具体的に、本発明を説明する。Example The present invention will be specifically explained with reference to Examples.

0)不飽和ポリエステルの合成 ネオペンチルグリコール55モル、プロピレングリコー
ル55モル、イソフタル酸20モル、フマル酸80モル
を二段反応で常法により、エステル化反応を行い、反応
の末期にハイドロキノン0.03部を入れて、酸価38
KOH■/gの不飽和ポリエステルを合成した。
0) Synthesis of unsaturated polyester 55 moles of neopentyl glycol, 55 moles of propylene glycol, 20 moles of isophthalic acid, and 80 moles of fumaric acid were subjected to an esterification reaction using a conventional method in a two-step reaction, and at the end of the reaction, 0.03 moles of hydroquinone was added. acid value 38
An unsaturated polyester of KOH/g was synthesized.

(2)不飽和ポリエステル樹脂成形材料の製法不飽和ポ
リエステル、低収縮剤、引火点が40℃以下の共重合性
単量体、引火点が40℃以上の共重合性単量体、硬化剤
、内部離型剤、顔料をニーダ−に入れ、40分混練りし
、パテ化させる。
(2) Manufacturing method of unsaturated polyester resin molding material Unsaturated polyester, low shrinkage agent, copolymerizable monomer with a flash point of 40°C or lower, copolymerizable monomer with a flash point of 40°C or higher, curing agent, Put the internal mold release agent and pigment into a kneader and knead for 40 minutes to form a putty.

その後ガラス繊維を加え、10分間混練りして仕上げて
、成形性や引火点測定の供試体とした。
Thereafter, glass fiber was added and the mixture was kneaded for 10 minutes to complete the mixture, and it was used as a specimen for moldability and flash point measurements.

(3)不飽和ポリエステル樹脂成形材料の成形性テスト
法 長さ40cmX幅20cmX厚み5anの平板が成形で
きる金型を100トンのプレスに取りつけて、下記の条
件で成形を行い、目視で成形品に欠陥がないかを確認し
、流動性が悪く成形品にピンホール等が出来て、充填不
良となったものを不可とした。
(3) Moldability test method for unsaturated polyester resin molding material A mold capable of forming a flat plate of length 40 cm x width 20 cm x thickness 5 ann was attached to a 100 ton press, molding was performed under the following conditions, and the molded product was visually inspected. We checked to see if there were any defects, and those with poor fluidity and pinholes in the molded products, resulting in poor filling, were rejected.

金型温度  上型150℃  下型145℃成形圧力 
 50 kg/aJ (4)不飽和ポリエステル樹脂成形材料の引火点測定 今回改正される消防法に定められたセメ密閉式引火点測
定器を用いて引火点を測定した。
Mold temperature Upper mold 150℃ Lower mold 145℃ Molding pressure
50 kg/aJ (4) Measurement of flash point of unsaturated polyester resin molding material The flash point was measured using a sealed flash point measuring device specified in the Fire Service Act, which is being revised this time.

(5)評価結果 上記の製法で、各配合の不飽和ポリエステル樹脂成形材
料を作り成形性テストと引火点測定を行った結果を第1
表に示す。
(5) Evaluation results Using the above manufacturing method, unsaturated polyester resin molding materials of various formulations were made and moldability tests and flash point measurements were conducted.
Shown in the table.

尚、本発明は上述の実施例の不飽和ポリエステルの組成
や引火点40℃以下の共重合性単量体や引火点40℃以
上の共重合性単量体の種類に限定されるものでないこと
を申し述べる。
It should be noted that the present invention is not limited to the composition of the unsaturated polyester of the above-mentioned examples or the type of copolymerizable monomer with a flash point of 40°C or lower or a copolymerizable monomer with a flashpoint of 40°C or higher. I state this.

(発明の効果) 本発明の不飽和ポリエステル樹脂成形材料は消防法で定
めた危険物に該当しない。
(Effects of the Invention) The unsaturated polyester resin molding material of the present invention does not fall under the category of hazardous materials defined by the Fire Service Act.

Claims (1)

【特許請求の範囲】 (A)不飽和ポリエステル5〜20重量%、(B)重合
性単量体5〜20重量%。 (C)充填剤40〜75重量%、 (D)低収縮剤0〜10重量%及び (E)繊維状補強材5〜30重量% からなる成形材料において、重合性単量体として引火点
40℃以下の単量体を成形材料中8重量%以下で且つ引
火点40℃より高い単量体を成形材料中1〜20重量%
の範囲で用いることを特徴とする引火点が40℃以上で
ある不飽和ポリエステル樹脂成形材料。
[Scope of Claims] (A) 5 to 20% by weight of unsaturated polyester, (B) 5 to 20% by weight of polymerizable monomer. In a molding material consisting of (C) 40 to 75% by weight of filler, (D) 0 to 10% by weight of low shrinkage agent, and (E) 5 to 30% by weight of fibrous reinforcement, the polymerizable monomer has a flash point of 40%. 8% by weight or less of monomers with a temperature below 40°C in the molding material, and 1 to 20% by weight of monomers with a flash point higher than 40°C in the molding material.
An unsaturated polyester resin molding material having a flash point of 40°C or higher, characterized in that it is used within the range of 40°C or higher.
JP22758889A 1989-09-04 1989-09-04 Unsaturated polyester resin molding material Pending JPH0391518A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22758889A JPH0391518A (en) 1989-09-04 1989-09-04 Unsaturated polyester resin molding material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22758889A JPH0391518A (en) 1989-09-04 1989-09-04 Unsaturated polyester resin molding material

Publications (1)

Publication Number Publication Date
JPH0391518A true JPH0391518A (en) 1991-04-17

Family

ID=16863274

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22758889A Pending JPH0391518A (en) 1989-09-04 1989-09-04 Unsaturated polyester resin molding material

Country Status (1)

Country Link
JP (1) JPH0391518A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03192108A (en) * 1989-12-21 1991-08-22 Matsushita Electric Works Ltd Unsaturated polyester resin molding material

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51103994A (en) * 1975-03-12 1976-09-14 Dainippon Ink & Chemicals FUHOWAHORIESUTERUJUSHISOSEIBUTSU
JPS5421491A (en) * 1977-07-20 1979-02-17 Mitsubishi Petrochem Co Ltd Curable solid unsaturated polyester resin
JPS55144014A (en) * 1979-04-02 1980-11-10 Hitachi Chem Co Ltd Unsaturated polyester resin composition for casting electrical equipment
JPS56152820A (en) * 1979-11-13 1981-11-26 Union Carbide Corp Improved polyester formed article
JPS60235820A (en) * 1984-05-09 1985-11-22 Hitachi Chem Co Ltd Curable resin composition

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51103994A (en) * 1975-03-12 1976-09-14 Dainippon Ink & Chemicals FUHOWAHORIESUTERUJUSHISOSEIBUTSU
JPS5421491A (en) * 1977-07-20 1979-02-17 Mitsubishi Petrochem Co Ltd Curable solid unsaturated polyester resin
JPS55144014A (en) * 1979-04-02 1980-11-10 Hitachi Chem Co Ltd Unsaturated polyester resin composition for casting electrical equipment
JPS56152820A (en) * 1979-11-13 1981-11-26 Union Carbide Corp Improved polyester formed article
JPS60235820A (en) * 1984-05-09 1985-11-22 Hitachi Chem Co Ltd Curable resin composition

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03192108A (en) * 1989-12-21 1991-08-22 Matsushita Electric Works Ltd Unsaturated polyester resin molding material

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