JPH047354A - Unsaturated polyester resin molding material - Google Patents
Unsaturated polyester resin molding materialInfo
- Publication number
- JPH047354A JPH047354A JP11130790A JP11130790A JPH047354A JP H047354 A JPH047354 A JP H047354A JP 11130790 A JP11130790 A JP 11130790A JP 11130790 A JP11130790 A JP 11130790A JP H047354 A JPH047354 A JP H047354A
- Authority
- JP
- Japan
- Prior art keywords
- unsaturated polyester
- polyester resin
- unsaturated
- weight
- molding material
- 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
- 239000012778 molding material Substances 0.000 title claims description 18
- 229920006337 unsaturated polyester resin Polymers 0.000 title claims description 11
- 229920006305 unsaturated polyester Polymers 0.000 claims abstract description 24
- 239000002253 acid Substances 0.000 claims abstract description 19
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 18
- 229920001225 polyester resin Polymers 0.000 claims abstract description 16
- 239000004645 polyester resin Substances 0.000 claims abstract description 16
- HJWLCRVIBGQPNF-UHFFFAOYSA-N prop-2-enylbenzene Chemical class C=CCC1=CC=CC=C1 HJWLCRVIBGQPNF-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000654 additive Substances 0.000 claims abstract description 6
- 239000000178 monomer Substances 0.000 claims description 9
- 238000002156 mixing Methods 0.000 abstract description 12
- 238000000465 moulding Methods 0.000 abstract description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract description 5
- 239000000945 filler Substances 0.000 abstract description 4
- 239000003999 initiator Substances 0.000 abstract description 4
- 239000003086 colorant Substances 0.000 abstract description 3
- 125000001931 aliphatic group Chemical group 0.000 abstract description 2
- 125000003118 aryl group Chemical group 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 abstract 1
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 12
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 9
- JLBJTVDPSNHSKJ-UHFFFAOYSA-N 4-Methylstyrene Chemical compound CC1=CC=C(C=C)C=C1 JLBJTVDPSNHSKJ-UHFFFAOYSA-N 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 4
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 4
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000006082 mold release agent Substances 0.000 description 3
- 239000012779 reinforcing material Substances 0.000 description 3
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical class [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 150000002334 glycols Chemical class 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
- -1 vinyl compounds Chemical class 0.000 description 2
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 2
- KMOUUZVZFBCRAM-OLQVQODUSA-N (3as,7ar)-3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione Chemical compound C1C=CC[C@@H]2C(=O)OC(=O)[C@@H]21 KMOUUZVZFBCRAM-OLQVQODUSA-N 0.000 description 1
- JZHGRUMIRATHIU-UHFFFAOYSA-N 1-ethenyl-3-methylbenzene Chemical compound CC1=CC=CC(C=C)=C1 JZHGRUMIRATHIU-UHFFFAOYSA-N 0.000 description 1
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 1
- 239000004641 Diallyl-phthalate Substances 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- QUDWYFHPNIMBFC-UHFFFAOYSA-N bis(prop-2-enyl) benzene-1,2-dicarboxylate Chemical compound C=CCOC(=O)C1=CC=CC=C1C(=O)OCC=C QUDWYFHPNIMBFC-UHFFFAOYSA-N 0.000 description 1
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical class C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［発明の目的コ
（産業上の利用分野）
本発明は、電気、電子機器部品、自動車をはじめとする
一般機械部品等の成形品に用いられる、引火点が高く寸
法安定性に優れた不飽和ポリエステル樹脂成形材料に関
する。DETAILED DESCRIPTION OF THE INVENTION [Purpose of the Invention (Industrial Field of Application) The present invention relates to a molded product having a high flash point and size, which is used for molded products such as electrical and electronic equipment parts and general mechanical parts including automobiles. This invention relates to an unsaturated polyester resin molding material with excellent stability.
（従来の技術）
一般に、電気、電子機器部品、自動車をはじめとする一
般機械部品等の成形用材料として、α、β−不飽和二塩
基酸とグリコール類との反応生成物に、共重合性モノマ
ー（ビニル化合物）を混合溶解してなる不飽和ポリエス
テルが使用されている。(Prior art) In general, reaction products of α,β-unsaturated dibasic acids and glycols are used as molding materials for electrical and electronic equipment parts, general mechanical parts such as automobiles, etc. An unsaturated polyester obtained by mixing and dissolving monomers (vinyl compounds) is used.
そしてこのような不飽和ポリエステルにおいては、従来
から共重合性モノマーとしてスチレンモノマーが使用さ
れている。In such unsaturated polyesters, styrene monomers have conventionally been used as copolymerizable monomers.
そのため、このような成形材料のほとんどは、引火点が
３２〜３５℃と低く、消防法で危険物である引火性固体
としての規制を受け、貯蔵、取扱い等において特別な配
慮を必要としていた。またスチレンモノマーは、労働安
全衛生法の第２種有機溶剤として規制を受け、作業環境
管理等の配慮を必要とした。Therefore, most of these molding materials have a low flash point of 32 to 35° C., and are regulated as flammable solids that are dangerous under the Fire Service Act, requiring special consideration in storage, handling, etc. Furthermore, styrene monomer is regulated as a Class 2 organic solvent under the Industrial Safety and Health Act, requiring consideration of work environment management, etc.
（発明が解決しようとする課題）
前記した貯蔵、取扱いおよび作業環境管理上の不都合を
解消するために、スチレンモノマーの代替として、α−
メチルスチレン、ジアリルフタレートモノマー アクリ
ルエステル誘導体等を使用する研究が行われてきたが、
いずれの化合物を使用した場合も、流動性、硬化性、離
型性、成形収縮率等の点で、成形材料として充分に満足
のゆくものは得られなかった。(Problems to be Solved by the Invention) In order to solve the above-mentioned inconveniences in storage, handling, and work environment management, α-
Research has been conducted using methylstyrene, diallylphthalate monomer, acrylic ester derivatives, etc.
No matter which compound was used, a fully satisfactory molding material could not be obtained in terms of fluidity, curability, mold releasability, mold shrinkage rate, etc.
本発明者らはこのような問題に鑑みて種々検討を重ねた
結果、共重合性モノマーとしてビニルトルエン誘導体を
使用し、かつこれに飽和ポリエステル樹脂を配合するこ
とにより、引火点が４０’Ｃ以上と高く、成形収縮率が
低く寸法安定性に優れた不飽和ポリエステル樹脂成形材
料が得られることを見出だし、本発明を完成した。The inventors of the present invention have conducted various studies in view of these problems, and have found that by using a vinyl toluene derivative as a copolymerizable monomer and blending it with a saturated polyester resin, the flash point can be increased to 40'C or higher. The inventors have discovered that it is possible to obtain an unsaturated polyester resin molding material that has a high molding shrinkage rate, a low molding shrinkage rate, and excellent dimensional stability, and has completed the present invention.
［発明の構成］
（課題を解決するための手段と作用）
すなわち本発明は、共重合性モノマーとしてビニルトル
エン誘導体を２０〜６０重量％の割合で含有する、不飽
和ポリエステル１０〜３０重量％と、平均分子量１５０
００〜３００００の飽和ポリエステル樹脂１〜６重量％
と、その他の添加剤とを配合してなる不飽和ポリエステ
ル樹脂成形材料であり、特に不飽和ポリエステルとして
は、不飽和酸成分の配合割合が、当量で酸成分全体の５
０％以上のものが使用される。[Structure of the invention] (Means and effects for solving the problem) That is, the present invention provides an unsaturated polyester containing 10 to 30% by weight of a vinyl toluene derivative as a copolymerizable monomer and 20 to 60% by weight. , average molecular weight 150
00-30000 saturated polyester resin 1-6% by weight
It is an unsaturated polyester resin molding material made by blending the unsaturated acid component with other additives. In particular, as an unsaturated polyester, the blending ratio of the unsaturated acid component is equivalent to 5% of the total acid component.
0% or more is used.
次に、本発明の詳細な説明する。Next, the present invention will be explained in detail.
本発明に使用する不飽和ポリエステルは、無水マレイン
酸、フマール酸等のα、β−不飽和二塩基酸、または必
要に応じてその一部を、オルソフタール酸、イソフター
ル酸、テレフタール酸、テトラヒドロ無水フタール酸、
コハク酸、アジピン酸のような芳香族または脂肪族の飽
和二塩基酸で置換した酸成分と、エチレングリコール、
ジエチレングリコール、プロピレングリコール、水素化
ビスフェノールＡのようなグリコール類とを、加熱し重
縮合反応させて得られた不飽和ポリエステルを、共重合
性モノマーであるビニルトルエン誘導体に混合溶解させ
たものである。The unsaturated polyester used in the present invention can be prepared by adding α,β-unsaturated dibasic acids such as maleic anhydride and fumaric acid, or a part thereof as necessary, to orthophthalic acid, isophthalic acid, terephthalic acid, tetrahydrophthalic anhydride, etc. acid,
An acid component substituted with an aromatic or aliphatic saturated dibasic acid such as succinic acid or adipic acid, and ethylene glycol,
An unsaturated polyester obtained by heating and polycondensing glycols such as diethylene glycol, propylene glycol, and hydrogenated bisphenol A is mixed and dissolved in a vinyl toluene derivative, which is a copolymerizable monomer.
ここで前記α、β−不飽和酸成分の配合割合は、当量で
酸成分全体の５０％以上とすることか望ましい。Here, it is desirable that the blending ratio of the α,β-unsaturated acid component is 50% or more of the total acid components in terms of equivalent amount.
すなわち、不飽和ポリエステルにおいて、不飽和酸成分
の配合割合が酸成分全体の５０当量％未満の場合には、
得られる成形体の離型性や寸法安定性が低下して実用に
供し得ない。That is, in the unsaturated polyester, if the blending ratio of the unsaturated acid component is less than 50 equivalent % of the total acid component,
The releasability and dimensional stability of the resulting molded product deteriorate, making it impossible to put it to practical use.
またビニルトルエン誘導体としては、オルソ又チルスチ
レン、メタメチルスチレン、バラメチルスチレン等があ
り、これらを単独でまたは混合して使用することができ
る。このようなビニルトルエン誘導体の含有量は、不飽
和ポリエステル全体の２０〜ＢＯ重量％とする。Vinyltoluene derivatives include ortho- or tylstyrene, metamethylstyrene, paramethylstyrene, and the like, and these can be used alone or in combination. The content of such vinyl toluene derivatives is 20 to BO weight % of the entire unsaturated polyester.
本発明において、不飽和ポリエステル中のビニルトルエ
ン誘導体の含有量を前記範囲に限定したのは、以下に示
す理由による。In the present invention, the reason why the content of the vinyl toluene derivative in the unsaturated polyester is limited to the above range is as follows.
すなわち、ビニルトルエン誘導体の含有量が２０重量％
未満では、得られる成形材料の流動性が悪くなり、反対
に６０重量％を越えると、成形体の寸法安定性および外
観光沢が低下して好ましくないためである。That is, the content of vinyltoluene derivative is 20% by weight.
If it is less than 60% by weight, the fluidity of the resulting molding material will deteriorate, and if it exceeds 60% by weight, the dimensional stability and appearance gloss of the molded article will deteriorate, which is undesirable.
またこうして得られる不飽和ポリエステルの配合量は、
成形材料全体の１０〜３０重量％とする。In addition, the amount of unsaturated polyester obtained in this way is
The amount is 10 to 30% by weight of the entire molding material.
すなわち、不飽和ポリエステルの配合量が１０重量％未
満では、得られる成形体の外観光沢か低下し、反対に３
０重量％を越えると、成形体の寸法安定性が低下して好
ましくない。That is, if the amount of unsaturated polyester blended is less than 10% by weight, the appearance gloss of the obtained molded product will decrease;
If it exceeds 0% by weight, the dimensional stability of the molded article will decrease, which is undesirable.
本発明において、前記不飽和ポリエステルとともに配合
する飽和ポリエステル樹脂は、平均分子量が１５（１０
０〜３００００のものとし、その配合量は成形材料全体
の１〜６重量％とする。In the present invention, the saturated polyester resin blended with the unsaturated polyester has an average molecular weight of 15 (10
0 to 30,000, and its blending amount is 1 to 6% by weight of the entire molding material.
ポリエステル樹脂の平均分子量および配合量をそれぞれ
前記範囲に限定したのは、次に示す理由による。The reason why the average molecular weight and blending amount of the polyester resin are limited to the above ranges is as follows.
すなわち、平均分子量が１５０００未満の飽和ポリエス
テル樹脂を使用した場合には、成形体の寸法安定性が低
下し、反対に飽和ポリエステル樹脂の分子量がａｏｏｏ
ｏを越えると、前記不飽和ポリエステルと相溶しなくな
り、好ましくないためである。That is, when a saturated polyester resin with an average molecular weight of less than 15,000 is used, the dimensional stability of the molded product decreases, and on the contrary, the molecular weight of the saturated polyester resin is
This is because if it exceeds o, it becomes incompatible with the unsaturated polyester, which is not preferable.
また、このような範囲の平均分子量を有する飽和ポリエ
ステル樹脂でも、配合量が１重量％未満の場合には、成
形体の寸法安定性が低くなり、反対に６重量％を越える
と、前記不飽和ポリエステルと相溶しなくなり、好まし
くないためである。Furthermore, even with saturated polyester resins having an average molecular weight within this range, if the blending amount is less than 1% by weight, the dimensional stability of the molded product will decrease, whereas if it exceeds 6% by weight, the unsaturated This is because it becomes incompatible with polyester, which is undesirable.
さらに本発明において、前記不飽和ポリエステルと前記
飽和ポリエステル樹脂とからなる組成物には、さらに硬
化開始剤、離型剤、充填材、補強材、着色剤等の添加剤
が配合される。Furthermore, in the present invention, additives such as a curing initiator, a mold release agent, a filler, a reinforcing material, and a coloring agent are further blended into the composition consisting of the unsaturated polyester and the saturated polyester resin.
ここで硬化開始剤としては、ターシャリ−ブチルパーオ
キシベンゾニー）、１．１−ジターシャリ−ブチルパー
オキシ３．３．５ トリメチルシクロヘキサン、ジクミ
ルパーオキサイド等の過酸化物が使用され、離型剤とし
ては、ステアリン酸亜鉛、ステアリン酸カルシウム等の
ステアリン酸塩が使用される。また、充填材としては、
シリカ、タルク、炭酸カルシウム、クレー等を使用する
ことができ、補強材としては、ガラス繊維、合成繊維等
の使用が好ましい。さらに着色剤としては、カーボンブ
ラック、各種顔料等を使用することができる。これらの
添加剤の配合量は、通常使用される量とする。Here, peroxides such as tert-butylperoxybenzony), 1-di-tert-butylperoxy 3.3.5-trimethylcyclohexane, and dicumyl peroxide are used as curing initiators, and mold release agents are used. As such, stearates such as zinc stearate and calcium stearate are used. In addition, as a filler,
Silica, talc, calcium carbonate, clay, etc. can be used, and as the reinforcing material, it is preferable to use glass fiber, synthetic fiber, etc. Further, as a coloring agent, carbon black, various pigments, etc. can be used. The amounts of these additives to be blended are the amounts normally used.
本発明においては、これらの成分を全て配合し常法によ
って混合、混練することによって、流動性、硬化性、離
型性等に優れ、かつ引火点が高くて成形収縮率が低い不
飽和ポリエステル樹脂成形材料が得られる。In the present invention, by blending all of these components and mixing and kneading them in a conventional manner, an unsaturated polyester resin with excellent fluidity, curability, mold releasability, etc., a high flash point, and a low mold shrinkage rate can be obtained. A molding material is obtained.
［実施例］ 以下、本発明の実施例について説明する。[Example] Examples of the present invention will be described below.
実施例１〜３
まず以下に示すようにして、不飽和ポリエステル（共重
合性モノマーの溶液）Ａ、Ｂ、ＣＳＤ。Examples 1 to 3 First, unsaturated polyesters (solutions of copolymerizable monomers) A, B, and CSD were prepared as shown below.
Ｅと、飽和ポリエステル樹脂（溶液）Ｆ、Ｇ、Ｈとをそ
れぞれ調製した。E, and saturated polyester resins (solutions) F, G, and H were prepared, respectively.
（１）プロピレングリコール１．１モルと無水マレイン
酸１．０モルとの反応生成物に、パラメチルスチレンを
含有量が８０重量％になるように混合し、不飽和ポリエ
ステル溶液Ａを得た。同様にして、不飽和ポリエステル
のバラメチルスチレン溶液Ｂ（パラメチルスチレンの含
有量６０重量％）およびＣ（同じく含有量４０重量％）
をそれぞれ得た。(1) Paramethylstyrene was mixed into a reaction product of 1.1 mol of propylene glycol and 1.0 mol of maleic anhydride so that the content was 80% by weight to obtain an unsaturated polyester solution A. Similarly, unsaturated polyester paramethylstyrene solutions B (paramethylstyrene content: 60% by weight) and C (paramethylstyrene content: 40% by weight)
were obtained respectively.
（２）プロピレングリコール１．１モルと無水マレイン
酸１．０モルとの反応生成物に、スチレンを混合しく含
有量６０重量％）、不飽和ポリエステルのスチレン溶液
りを得た。(2) Styrene was mixed into the reaction product of 1.1 mol of propylene glycol and 1.0 mol of maleic anhydride (content: 60% by weight) to obtain a styrene solution of unsaturated polyester.
（３）プロピレングリコール１．１モルと、不飽和酸で
ある無水マレイン酸０．４モル、および飽和酸であるイ
ソフタール酸０．６モルとの反応生成物に、パラメチル
スチレンを混合しく含有量４０重量％）、不飽和ポリエ
ステル溶液Ｅを得た。(3) Paramethylstyrene is mixed into the reaction product of 1.1 mole of propylene glycol, 0.4 mole of maleic anhydride, which is an unsaturated acid, and 0.6 mole, isophthalic acid, which is a saturated acid. 40% by weight), an unsaturated polyester solution E was obtained.
（４）飽和ポリエステル樹脂（東洋紡社製、バイロン３
００）を、パラメチルスチレンに３＝７および４：６の
重量比でそれぞれ混合溶解させ、飽和ポリエステル樹脂
溶液ＦおよびＧを得た。(4) Saturated polyester resin (manufactured by Toyobo Co., Ltd., Byron 3
00) were mixed and dissolved in para-methylstyrene at weight ratios of 3=7 and 4:6, respectively, to obtain saturated polyester resin solutions F and G.
（５）飽和ポリエステル樹脂（東洋紡社製、バイロン３
００）を、スチレンに４：６の重量比で溶解させ、飽和
ポリエステル樹脂溶液Ｈを得た。(5) Saturated polyester resin (manufactured by Toyobo Co., Ltd., Byron 3
00) was dissolved in styrene at a weight ratio of 4:6 to obtain a saturated polyester resin solution H.
次に、これらの溶液と、ターシャリ−ブチルパーオキシ
ベンゾエート（硬化開始剤）と、ステアリン酸亜鉛（離
型剤）と、炭酸カルシウム（充填材）、およびガラス繊
維（補強材）とを、表１に示す割合でそれぞれ配合し、
ニーダ−で３０分間間流混練して、塊状の不飽和ポリエ
ステル樹脂成形材料を得た。Next, these solutions, tertiary-butyl peroxybenzoate (curing initiator), zinc stearate (mold release agent), calcium carbonate (filler), and glass fiber (reinforcing material) were added as shown in Table 1. Blend each in the proportions shown in
The mixture was kneaded in a kneader for 30 minutes to obtain a lumpy unsaturated polyester resin molding material.
こうして実施例１〜３および比較例１〜３でそれぞれ得
られた不飽和ポリエステル樹脂成形材料を、温度１５０
℃、圧力４０ｋｇ／ｃシ、時間３分の条件で加熱加圧し
板状に成形した。The unsaturated polyester resin molding materials obtained in Examples 1 to 3 and Comparative Examples 1 to 3 were heated at a temperature of 150°C.
It was heated and pressed under conditions of temperature, pressure of 40 kg/c, and time of 3 minutes to form a plate shape.
次いで、得られた成形体の引火点と表面光沢を調べた。Next, the flash point and surface gloss of the obtained molded article were examined.
また成形収縮率を、ＪＩＳ Ｋ６９１１に準じて測定し
た。測定結果を第１表の下欄に示す。Further, the molding shrinkage rate was measured according to JIS K6911. The measurement results are shown in the lower column of Table 1.
（以下余白）
第１表の測定結果から明らかなように、実施例で得られ
た不飽和ポリエステル樹脂成形材料は、比較例のものよ
りはるかに引火点が高いうえに、得られる成形体は、成
形収縮率か低く表面光沢が良好である。(Left below) As is clear from the measurement results in Table 1, the unsaturated polyester resin molding materials obtained in the Examples have a much higher flash point than those in the Comparative Examples, and the resulting molded products have Low molding shrinkage and good surface gloss.
［発明の効果］
以上説明したように、本発明の不飽和ポリエステル樹脂
成形材料は、引火点が５０℃以上と高いので、保管貯蔵
や取扱いが容易である。[Effects of the Invention] As explained above, the unsaturated polyester resin molding material of the present invention has a high flash point of 50° C. or higher, so it is easy to store and handle.
またこの成形材料から得られる成形体は、表面光沢等の
外観が良好であるうえに、成形収縮率が低く寸法安定性
に優れている。Moreover, the molded product obtained from this molding material has a good appearance such as surface gloss, and has a low molding shrinkage rate and excellent dimensional stability.
Claims (2)
２０〜６０重量％の割合で含有する、不飽和ポリエステ
ル１０〜３０重量％と、平均分子量１５０００〜３００
００の飽和ポリエステル樹脂１〜６重量％と、その他の
添加剤とを配合してなることを特徴とする不飽和ポリエ
ステル樹脂成形材料。(1) 10 to 30% by weight of an unsaturated polyester containing 20 to 60% by weight of a vinyl toluene derivative as a copolymerizable monomer, and an average molecular weight of 15,000 to 300%.
An unsaturated polyester resin molding material comprising 1 to 6% by weight of a saturated polyester resin of No. 00 and other additives.
合割合が、当量で酸成分全体の５０％以上である請求項
１記載の不飽和ポリエステル樹脂成形材料。(2) The unsaturated polyester resin molding material according to claim 1, wherein the proportion of the unsaturated acid component in the unsaturated polyester is 50% or more of the total acid component in equivalent terms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11130790A JPH047354A (en) | 1990-04-25 | 1990-04-25 | Unsaturated polyester resin molding material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11130790A JPH047354A (en) | 1990-04-25 | 1990-04-25 | Unsaturated polyester resin molding material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH047354A true JPH047354A (en) | 1992-01-10 |
Family
ID=14557910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11130790A Pending JPH047354A (en) | 1990-04-25 | 1990-04-25 | Unsaturated polyester resin molding material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH047354A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006036839A (en) * | 2004-07-23 | 2006-02-09 | Japan Composite Co Ltd | Unsaturated polyester resin composition, molding material and molding comprising the same |
| JP2007177175A (en) * | 2005-12-28 | 2007-07-12 | Japan Composite Co Ltd | Cured material of thermosetting resin composition and method for producing the same |
-
1990
- 1990-04-25 JP JP11130790A patent/JPH047354A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006036839A (en) * | 2004-07-23 | 2006-02-09 | Japan Composite Co Ltd | Unsaturated polyester resin composition, molding material and molding comprising the same |
| JP2007177175A (en) * | 2005-12-28 | 2007-07-12 | Japan Composite Co Ltd | Cured material of thermosetting resin composition and method for producing the same |
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