JPS60240723A - Production of pale unsaturated polyester resin - Google Patents

Production of pale unsaturated polyester resin

Info

Publication number
JPS60240723A
JPS60240723A JP9606784A JP9606784A JPS60240723A JP S60240723 A JPS60240723 A JP S60240723A JP 9606784 A JP9606784 A JP 9606784A JP 9606784 A JP9606784 A JP 9606784A JP S60240723 A JPS60240723 A JP S60240723A
Authority
JP
Japan
Prior art keywords
acid
unsaturated polyester
polyester resin
anhydride
parts
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.)
Granted
Application number
JP9606784A
Other languages
Japanese (ja)
Other versions
JPH0414703B2 (en
Inventor
Kazuyuki Tanaka
一行 田中
Etsuji Iwami
悦司 岩見
Yukushi Arakawa
行志 荒川
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 Corp
Original Assignee
Hitachi Chemical 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 Hitachi Chemical Co Ltd filed Critical Hitachi Chemical Co Ltd
Priority to JP9606784A priority Critical patent/JPS60240723A/en
Publication of JPS60240723A publication Critical patent/JPS60240723A/en
Publication of JPH0414703B2 publication Critical patent/JPH0414703B2/ja
Granted legal-status Critical Current

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  • Polyesters Or Polycarbonates (AREA)

Abstract

PURPOSE:To produce the titled coloration-free transparent resin, by reacting an acid component containing alpha, beta-unsaturated dibasic acid (anhydride) and other polybasic acids with an alcohol component in the presence of a specified keto- enol tautomer. CONSTITUTION:An acid component comprising an alpha,beta-unsaturated dibasic acid and/or its anhydride, e.g., maleic acid (anhydride), and other polybasic acids (e.g., phthalic acid) is reacted with an alcohol component (e.g., ethylene glycol), the total amount of the both being 100pts.wt., at 150-210 deg.C in the presence of 0.001-1pt.wt. keto-enol tautomer of the formula [wherein R and R' are each an (un)substituted monovalent hydrocarbyl group] in an inert gas atmosphere.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は9着色の著しく改善された。淡色な不飽和ポリ
エステル樹脂の製造法に関するものである。
DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention has significantly improved coloring. This invention relates to a method for producing a light-colored unsaturated polyester resin.

(従来技術) α、β−不飽和二塩基酸および/または、その酸無水物
さらに必要に応じ多塩基酸を含む酸成分と、アルコール
成分を反応させて得られる不飽和ポリエステル樹脂は、
主にこれをビニルモノマーに溶解し、不飽和ポリエステ
ル樹脂組成物として。
(Prior art) An unsaturated polyester resin obtained by reacting an alcohol component with an acid component containing an α,β-unsaturated dibasic acid and/or its acid anhydride and, if necessary, a polybasic acid, is
This is mainly dissolved in vinyl monomer to form an unsaturated polyester resin composition.

各種用途に使用されている。例えば、この不飽和ポリエ
ステル樹脂組成物に必要に応じて、過酸化物、促進剤、
光増感剤などを添加して熱や光で硬化させて、ボタンや
置物などの注型品、木材9合板などの保護膜として使用
されている。
Used for various purposes. For example, peroxides, accelerators,
By adding photosensitizers and curing with heat or light, it is used as a protective film for cast products such as buttons and ornaments, and for wood 9 plywood.

また、この不飽和ポリエステル樹脂組成物をガラス繊維
、カーポ/繊維、有機繊維などの繊維状補強材に含浸し
、場合によっては不飽和ポリエステル樹脂組成物に充填
剤を混合したコジパウンドを繊維状補強材に含浸し、前
述の場合と同じく光や熱で硬化させ、FRPとして波板
、バスタブ。
In addition, this unsaturated polyester resin composition is impregnated into fibrous reinforcing materials such as glass fibers, carpo/fibers, and organic fibers, and in some cases, Kojipound, which is a mixture of unsaturated polyester resin compositions and fillers, is used as fibrous reinforcing materials. It is impregnated with FRP and cured with light or heat as in the previous case, and is made into corrugated sheets and bathtubs as FRP.

浄化槽、タンク、キッチンカウンターなどに使用されて
いる。
Used in septic tanks, tanks, kitchen counters, etc.

これらの用途の中で、ボタンなどの注型品を始めとし、
波板やバスタブ、キッチンカウンターなどは9色相、透
明感が商品価値を高める大きな因子となっており、その
為、不飽和ポリエステル樹脂には着色されていないこと
、透明でめることなどが要求されている。
Among these uses, starting with cast products such as buttons,
Corrugated sheets, bathtubs, kitchen counters, etc. come in 9 different hues, and transparency is a major factor in increasing product value. Therefore, unsaturated polyester resins are required to be uncolored and transparent. ing.

また不飽和ポリエステル樹脂を各種の溶剤に溶解し、ガ
ラス繊維布1紙などのシート状基材に含浸し、プリプレ
グとしこれを硬化させ、もしくは不飽和ポリエステル樹
脂を、ビニルモノマーに溶解した不飽和ポリエステル樹
脂組成物を、ガラス繊維布9紙などのシート状基材に含
浸し、硬化させ化粧板や積層板として、家具、調度品や
電気用品として使用される場合も着色が無く、透明感の
強い不飽和ポリエステル樹脂が珍重されている。
In addition, unsaturated polyester resin is dissolved in various solvents and impregnated into a sheet-like base material such as glass fiber cloth, and then cured to form a prepreg, or unsaturated polyester resin is dissolved in vinyl monomer. The resin composition is impregnated into a sheet-like base material such as glass fiber cloth9 paper, and when it is cured and used as a decorative board or laminate, or used as furniture, furnishings, or electrical appliances, it has no coloring and has a strong transparency. Unsaturated polyester resins are prized.

一般に不飽和ポリエステル樹脂を常法により合成すると
黄色に着色した樹脂が得られ、従来よりこの着色を防止
する為1種々の試みがなされてきた。
Generally, when an unsaturated polyester resin is synthesized by a conventional method, a yellow colored resin is obtained, and various attempts have been made to prevent this coloration.

例えば、不飽和ポリエステル樹脂の着色防止法として合
成時の温度を下げる方法、各種のリン化合物を合成時に
添加する方法などが知られている。
For example, known methods for preventing discoloration of unsaturated polyester resins include lowering the temperature during synthesis and adding various phosphorus compounds during synthesis.

しかしながら9合成の温度を下げる方法では。However, in the method of lowering the temperature of 9 synthesis.

合成の時間が長くなり、生産性の低下をまねき好ましく
ない。
This is undesirable because it increases the synthesis time and leads to a decrease in productivity.

また、各種のリン化合物を合成時に用いる方法では、リ
ン化合物は一般に不飽和0ポリエステル樹脂組成物をメ
チルエチルケトンパーオキサイドなどの過酸化物とす7
テン酸コバルトなどの促進剤で硬化させる場合の硬化遅
延剤となることが良く知られており、この方法により合
成した不飽和ポリエステル樹脂及びこれを用いた不飽和
ポリエステル樹脂組成物は硬化遅延の為、その使用範囲
が限定されてしまう。
In addition, in the method of using various phosphorus compounds during synthesis, the phosphorus compound is generally obtained by converting an unsaturated polyester resin composition into a peroxide such as methyl ethyl ketone peroxide.
It is well known that it acts as a curing retardant when curing with an accelerator such as cobalt thenate, and unsaturated polyester resins synthesized by this method and unsaturated polyester resin compositions using it are known to act as curing retardants. , its range of use is limited.

また、す/化合物による硬化遅延を起こさぬ範囲内で、
す/化合物を使用する場合、添加量の制限があり9着色
の防止効果を十分発揮出来ないなどの欠点が生じ、これ
は好ましい着色防止方法とは言いがたい。
In addition, within the range that does not cause curing delay due to the salt/compound,
When using such a compound, there is a limitation in the amount added, and there are drawbacks such as the inability to fully exhibit the effect of preventing coloring, and this cannot be said to be a preferable method for preventing coloring.

一方、やや黄色に着色した不飽和ポリエステル樹脂であ
っても、不飽和ポリエステル樹脂組成物に調整する段階
で、ブルーイング剤として青色染料、けい光増白剤など
を添加する方法がとられていたが、青色染料を添加した
場合には、樹脂に青味が付き黄色の着色は消えるかに見
えるが、樹脂組成物の透明感が低下し好ましくない。ま
たけい光増白剤を添加する方法では、光、熱によるけい
光増白剤の変色が著しく、その効果は一時的なものでこ
れも好ましい方法とはいいがたい。
On the other hand, even if the unsaturated polyester resin is slightly yellow colored, a blue dye, fluorescent whitening agent, etc. has been added as a bluing agent at the stage of preparing the unsaturated polyester resin composition. However, when a blue dye is added, the resin has a bluish tint and the yellow coloring appears to disappear, but the transparency of the resin composition decreases, which is not preferable. Furthermore, in the method of adding a fluorescent brightener, the color of the brightener changes significantly due to light and heat, and the effect is only temporary, so this method cannot be said to be a preferable method either.

(発明の目的) 本発明は、このような現状に鑑みなされたもので、不飽
和ポリエステル樹脂の着色を防止するばかりでなく、得
られる不飽和ポリエステル樹脂組成物の硬化性に悪影響
全人はさない不飽和ポリエステル樹脂の製造法を提供す
ることを目的とする。
(Objective of the Invention) The present invention has been made in view of the current situation, and it not only prevents coloring of unsaturated polyester resins, but also prevents any adverse effects on the curability of the resulting unsaturated polyester resin compositions. The purpose of the present invention is to provide a method for producing unsaturated polyester resin.

(発明の構成) 本発明は、α、β−不飽和二塩基酸および/またはその
酸無水物とその他の多塩基酸とを含む酸成分とアルコー
ル成分を反応させる際に1式U>で示されるケト−エノ
ール互変異性体を存在させることを特徴とする不飽和ポ
リエステル樹脂の製造法に関する。
(Structure of the Invention) The present invention provides a method for reacting an acid component containing an α,β-unsaturated dibasic acid and/or an acid anhydride thereof with another polybasic acid and an alcohol component as shown in formula 1 The present invention relates to a method for producing an unsaturated polyester resin characterized by the presence of a keto-enol tautomer.

(ただし、RおよびR′は非置換のまたは置換の一価の
炭化水素基であり、R及びR′は同一であっても相違し
てもよい) 式(I)におけるR及びπは非置換のまたは置換の一価
の炭化水素基であり、R及びWは同一であっても相違し
てもよい。
(However, R and R' are unsubstituted or substituted monovalent hydrocarbon groups, and R and R' may be the same or different.) R and π in formula (I) are unsubstituted or a substituted monovalent hydrocarbon group, and R and W may be the same or different.

ここで、非置換の一価の炭化水素基としては。Here, as an unsubstituted monovalent hydrocarbon group.

メチル基、エチル基、プロピル基、イソプロピル基、ブ
チル基、イソブチル基、オクチル基等のアルキル基、フ
ェニル基、シクロアルキル基、アラルキル基などがおる
。また置換の一価の炭化水素基としては、トリフロロメ
チル基等のハロゲン置換の炭化水素基などがある。
Examples include alkyl groups such as methyl group, ethyl group, propyl group, isopropyl group, butyl group, isobutyl group, and octyl group, phenyl group, cycloalkyl group, and aralkyl group. Examples of substituted monovalent hydrocarbon groups include halogen-substituted hydrocarbon groups such as trifluoromethyl group.

式(1)で示されるケト−エノール互変異性体の具体例
としては。
Specific examples of the keto-enol tautomer represented by formula (1) include:

2、2.6.6−チトラメチルー3,5−へブタンジオ
ジベンゾイルメタン 1、1.1− )リフロー−2,4−ペンタンジオンC
H3CCH2CCF3 111 0 などがあげられる。
2,2.6.6-titramethyl-3,5-hebutanediodibenzoylmethane 1,1.1-) reflow-2,4-pentanedione C
Examples include H3CCH2CCF3 111 0.

上記のケトルエノール互変異性体は、上記の酸成分とア
ルコール成分を反応させる際に存在させ好ましくは以下
に説明する不飽和ポリエステル樹脂の合成開始時または
合成の初期段階に系中へ添加される。またその添加量は
、酸成分とアルコール成分の初期仕込み1100重量部
に対し、 0.001部から1重量部の範囲とすること
が好ましく。
The above ketoluenol tautomer is present when the above acid component and alcohol component are reacted, and is preferably added to the system at the beginning of the synthesis of the unsaturated polyester resin described below or at an early stage of the synthesis. . Further, the amount added is preferably in the range of 0.001 part to 1 part by weight based on 1100 parts by weight of the initial charge of acid component and alcohol component.

0、005〜0.05重量部の範囲とすることがより好
ましい。
More preferably, the amount is in the range of 0.005 to 0.05 parts by weight.

α、β−不飽和二塩基酸および/またはその酸無水物と
しては、マレイン酸、7マール酸、イタコン酸、シトラ
コン酸、無水マレイン酸などがある。これらは二種以上
を併用してもよい。
Examples of the α,β-unsaturated dibasic acid and/or its acid anhydride include maleic acid, hexamaric acid, itaconic acid, citraconic acid, and maleic anhydride. Two or more of these may be used in combination.

その他の多塩基酸としては、フタル酸、無水フタル酸、
イソフタル酸、テレフタル酸、トリメリット酸、無水ト
リメリット酸、こはく酸、アゼライン酸、アジピン酸、
テトラヒトo7タル酸、テトラヒドロ無水フタル酸、ヘ
キサヒドロフタル酸。
Other polybasic acids include phthalic acid, phthalic anhydride,
Isophthalic acid, terephthalic acid, trimellitic acid, trimellitic anhydride, succinic acid, azelaic acid, adipic acid,
Tetrahydro7thalic acid, tetrahydrophthalic anhydride, hexahydrophthalic acid.

ヘキサヒドロ無水フタル酸、ロジン−無水マレイ′ン酸
付加物などを用いることが出来る。
Hexahydrophthalic anhydride, rosin-maleic anhydride adduct, etc. can be used.

ヘット酸、無水ヘット酸、テトラクロロフタル酸、テト
ラクロロ無水7タル酸等の塩素化多塩基酸、テトラブロ
モフタル酸、テトラブロモ無水フタル酸等の臭素化多塩
基酸などのハロゲン化多塩基酸を用いることが出来る。
Halogenated polybasic acids such as chlorinated polybasic acids such as het acid, het acid anhydride, tetrachlorophthalic acid, and tetrachloroheptalic anhydride, and brominated polybasic acids such as tetrabromophthalic acid and tetrabromophthalic anhydride. It can be used.

これらは二種以上併用してもよい。Two or more of these may be used in combination.

アルコール成分としては、エチレングリコール。The alcohol component is ethylene glycol.

ジエチレングリコール、フロピレンゲリコール。Diethylene glycol, phlopylene gelicol.

ジプロピレングリコール、1.3−ブタンジオール。Dipropylene glycol, 1,3-butanediol.

1.6−ヘキサンジオール、ネオペンチルグリコール等
の二価アルコール、グリセリン、トリメチロールプロパ
ン等の三価アルコール、ペンタエリスリトール等の四価
アルコールなどを使用することが出来る。
Dihydric alcohols such as 1,6-hexanediol and neopentyl glycol, trihydric alcohols such as glycerin and trimethylolpropane, and tetrahydric alcohols such as pentaerythritol can be used.

また前記の各種アルコールの塩素化、臭素化アルコール
等ハロゲン化アルコールを使用することも出来る。
It is also possible to use halogenated alcohols such as chlorinated and brominated alcohols of the various alcohols mentioned above.

その他の多塩基酸としてハロゲン化多塩基酸。Other polybasic acids include halogenated polybasic acids.

アルコール成分としてハロゲン化アルコール11いるこ
とが好ましい。これらは二種以上併用してもよい。
It is preferable to include halogenated alcohol 11 as the alcohol component. Two or more of these may be used in combination.

上記の酸成分とアルコール成分を反応させ、不飽和ポリ
エステル樹脂を得る製造法は、主に縮合反応を進めるこ
とにより行われ9両成分が反応する時に生ずる水のよう
な低分子を系外へ脱離させることにより進行する。
The production method for obtaining unsaturated polyester resin by reacting the above acid component and alcohol component is mainly carried out by proceeding with a condensation reaction.9 Low molecules such as water produced when the two components react are removed from the system. Proceed by letting go.

この反応を行う一般的装置及び反応条件について説明す
る。
A general apparatus and reaction conditions for carrying out this reaction will be explained.

反応装置は、ガラス、ステンレス等の酸成分に対して不
活性なものが選ばれ、攪拌装置、水とアルコール成分の
共沸によるアルコール成分の摺出を防ぐ為の分溜装置1
反応系の温度を高める刀α熱装置、この加熱装置の温度
制御回路、さらには♀素ガスなどの吹き込み装置を設え
た反応装置を用いることが好ましい。
The reactor is made of glass, stainless steel, or other material that is inert to acid components, and includes a stirring device and a fractionator 1 to prevent the alcohol component from sliding out due to azeotropy between water and the alcohol component.
It is preferable to use a reaction apparatus equipped with a heating device for raising the temperature of the reaction system, a temperature control circuit for this heating device, and a blowing device for ♀ elementary gas.

反応条件は1反応速度が十分大きい150℃以上の温度
で行うことが好ましい。高温における酸化反応による着
色を防止するためには、160℃〜210℃の範囲がよ
り好ましい。
As for the reaction conditions, it is preferable to carry out the reaction at a temperature of 150°C or higher at which the rate of one reaction is sufficiently high. In order to prevent coloring due to oxidation reactions at high temperatures, the temperature range is more preferably from 160°C to 210°C.

また、高温における酸化による副反応を防止するために
は、窒素9.二酸化炭素などの不活性気体を通気しなが
ら合成を行うことが好ましい。
In addition, in order to prevent side reactions due to oxidation at high temperatures, nitrogen 9. It is preferable to carry out the synthesis while passing an inert gas such as carbon dioxide.

反応は、酸成分およびアルコール成分を混合した系を加
熱して行き、生成する縮合水などの低分子化合物を系外
に除き進められるが、これは好ましくは不活性気体を通
じること忙よる自然溜め。
The reaction proceeds by heating a system in which an acid component and an alcohol component are mixed, and removing low-molecular compounds such as condensed water produced from the system. This is preferably done by passing an inert gas through a natural reservoir. .

または減圧摺出によって行われる。また摺出さるべき低
分子化合物が高沸点の場合は、高真空が必要である。
Or by vacuum ejection. Furthermore, if the low molecular weight compound to be removed has a high boiling point, a high vacuum is required.

さらに、縮合水などの低分子化合物の摺出を促進する為
、トルエンやキシレンなどの溶剤を共沸成分として系中
へ添加し、自然溜めを行うことも出来る。
Furthermore, in order to promote the sliding out of low-molecular compounds such as condensed water, a solvent such as toluene or xylene can be added to the system as an azeotropic component to perform natural accumulation.

反応の進行は、一般に反応により生成する溜め分量の測
定、末端の官能基の定量1反応系の粘度の測定などによ
り知ることが出来る。
The progress of the reaction can generally be determined by measuring the volume of the reservoir produced by the reaction, quantifying the terminal functional groups, and measuring the viscosity of the reaction system.

合成され九不飽和ポリエステル樹脂は、スチレン、ビニ
ルトルエン、ジビニルペンゼ/、メタクリル酸メチル、
酢酸ビニル等の重合性単量体に溶解し、不飽和ポリエス
テル樹脂組成物とされる。
The nine unsaturated polyester resins synthesized are styrene, vinyltoluene, divinylpenze/methyl methacrylate,
It is dissolved in a polymerizable monomer such as vinyl acetate to form an unsaturated polyester resin composition.

また必要に応じ、ハイドロキノン等の重合禁止剤。Also, if necessary, a polymerization inhibitor such as hydroquinone.

ナフテン酸コバルト等の重合促進剤、ベンゾフェノン等
の光増感剤、過酸化物などの各種の添加剤が刀口見られ
る。アリルグリシジルエーテル、フェニルグリシジルエ
ーテル等を用いて、不飽和ポリエステル樹脂を変性する
ことも可能でおる。
Various additives are commonly used, such as polymerization accelerators such as cobalt naphthenate, photosensitizers such as benzophenone, and peroxides. It is also possible to modify unsaturated polyester resins using allyl glycidyl ether, phenyl glycidyl ether, and the like.

(実施例) 以下実施例により本発明を説明する。部とめるのは重量
部を示す。
(Example) The present invention will be explained below with reference to Examples. Parts indicate parts by weight.

実施例1 撹拌棒、コンデンサー、窒素ガス導入管、温度計を取り
付けfcII!の四つロフラスコに、プロピレングリコ
ール152部、無水マレイン酸98部。
Example 1 Attach a stirring bar, condenser, nitrogen gas introduction tube, and thermometer fcII! 152 parts of propylene glycol and 98 parts of maleic anhydride in a four-bottle flask.

無水フタル酸148部、ベンゾイルアセトン0.04部
を仕込み、窒素ガスをゆっくり流しながら、マントルモ
ータを用い1〜1.5時間で温度を150℃に上げる。
148 parts of phthalic anhydride and 0.04 parts of benzoylacetone are charged, and the temperature is raised to 150° C. over 1 to 1.5 hours using a mantle motor while slowly flowing nitrogen gas.

さらに、4時間かけ温度を200℃に昇温し、その温度
で保温する。その後約12時間で、酸価32の不飽和ポ
リエステル樹脂を得た。
Furthermore, the temperature was raised to 200° C. over 4 hours and kept at that temperature. After about 12 hours, an unsaturated polyester resin having an acid value of 32 was obtained.

さらに温度を100℃に下げ9重合禁止剤としてハイド
pキノン0.05部、スチレン160部を加え、不飽和
ポリエステル樹脂組成物を得た。この不飽和ポリエステ
ル樹脂組成物の色相はハーゼン色数で80でめった。
The temperature was further lowered to 100°C, and 0.05 part of hyde p-quinone and 160 parts of styrene were added as polymerization inhibitors to obtain an unsaturated polyester resin composition. The hue of this unsaturated polyester resin composition was 80 on the Hazen color number.

また、この不飽和ポリエステル樹脂組成物を25℃で、
不飽和ポリエステル樹脂組成物に対して6チナ7テン酸
コバルト0.5重量%、55%メチルエチルケトンパー
オキサイド1重量%を用い硬化したところ、硬化までの
ゲルタイムは12分であった。
In addition, this unsaturated polyester resin composition was heated at 25°C.
When the unsaturated polyester resin composition was cured using 0.5% by weight of cobalt heptatenate and 1% by weight of 55% methyl ethyl ketone peroxide, the gel time until curing was 12 minutes.

実施例2 実施例1と同じ装置を用い、エチレングリコール136
部、無水マレイン酸98部、ヘット酸389部、カレン
ズDK−2(ジベンゾイルメタン;昭和電工■製)0.
06部を仕込み、2時間で170℃に昇温し、この温度
に保温を行い、15時間かけ酸価20の不飽和ポリエス
テル樹脂を得た。さらに温度を100℃に下げ、ノ・イ
ドロキノン0.09部、スチレン255部を添加し、不
飽和ポリエステル樹脂組成物を得た。
Example 2 Using the same equipment as in Example 1, ethylene glycol 136
part, maleic anhydride 98 parts, het acid 389 parts, Karenz DK-2 (dibenzoylmethane; manufactured by Showa Denko ■) 0.
06 parts were charged, the temperature was raised to 170° C. over 2 hours, the temperature was kept at this temperature, and an unsaturated polyester resin having an acid value of 20 was obtained over 15 hours. The temperature was further lowered to 100° C., and 0.09 parts of hydroquinone and 255 parts of styrene were added to obtain an unsaturated polyester resin composition.

この不飽和ポリエステル樹脂組成物の色相は。What is the hue of this unsaturated polyester resin composition?

ハーゼン色数で60でめつ九。The number of Hazen colors is 60, which is 9.

比較例1 実施例1と同じ合成装置を用い、プロピレングリコール
152部、無水マレイン酸98部、無水フタル酸148
部を仕込み、実施例1と同じ合成工程により、ff価2
8の不飽和ポリエステル樹脂を得た。実施例1と同じ<
、100℃に温度を下ケ、ハイドロキノ70.05 部
、スチレン160gを加え不飽和ポリエステル樹脂組成
物を調整したところ、その色相は、ハーゼン色数で12
0であった。
Comparative Example 1 Using the same synthesis apparatus as in Example 1, 152 parts of propylene glycol, 98 parts of maleic anhydride, and 148 parts of phthalic anhydride were used.
The same synthesis process as in Example 1 was carried out to obtain an ff value of 2.
An unsaturated polyester resin No. 8 was obtained. Same as Example 1<
When the temperature was lowered to 100°C and 70.05 parts of hydroquino and 160 g of styrene were added to prepare an unsaturated polyester resin composition, the hue was 12 on the Hazen color number.
It was 0.

比較例2 実施例1と同じ合成装置を用い、エチレングリコール1
36i1S 、 無水マレイン酸98部、ヘット酸38
9部を仕込み、実施例2と同じ合成工程を用いて酸価2
5の不飽和ポリエステル樹脂を得た。
Comparative Example 2 Using the same synthesis apparatus as in Example 1, ethylene glycol 1
36i1S, 98 parts of maleic anhydride, 38 parts of het acid
9 parts, and using the same synthesis process as in Example 2, the acid value was 2.
An unsaturated polyester resin No. 5 was obtained.

さらに、同様にして、ハイドロキノン0,09部。Furthermore, 0.09 parts of hydroquinone was added in the same manner.

スチレン255部を添加し、不飽和ポリエステル樹脂組
成物を得た。この不飽和ポリエステル樹脂組成物の色相
は、ハーゼン色数で400でめった。
255 parts of styrene was added to obtain an unsaturated polyester resin composition. The hue of this unsaturated polyester resin composition was 400 in Hazen color number.

(発明の効果) 本発明の製造法により9着色を大幅に低減し。(Effect of the invention) The production method of the present invention significantly reduces coloring.

透明感の強い淡色不飽和ポリエステル樹脂を得ることが
出来る。
A light-colored unsaturated polyester resin with strong transparency can be obtained.

+ゝ −゛\+ゝ −゛\

Claims (1)

【特許請求の範囲】 1、α、β−不飽和二塩基酸および/またはその酸無水
物とその他の多塩基酸とを含む酸成分とアルコール成分
を反応させる際に2式(11で示されるケト−エノール
互変異性体を存在させることを特徴とする淡色な不飽和
ポリエステル樹脂の製造法。 2 その他の多塩基酸が、)・ロゲン化多塩基酸である
特許請求の範囲第1項記載の淡色な不飽和ポリエステル
樹脂の製造法。 3、アルコール成分が、ハロゲン化アルコールである特
許請求の範囲第1項記載の淡色な不飽和ポリエステル樹
脂の製造法。
[Claims] When reacting an acid component containing a 1, α, β-unsaturated dibasic acid and/or its acid anhydride with another polybasic acid and an alcohol component, A method for producing a light-colored unsaturated polyester resin characterized by the presence of a keto-enol tautomer. 2. Claim 1, wherein the other polybasic acid is a)-logenated polybasic acid. A method for producing light-colored unsaturated polyester resin. 3. The method for producing a light-colored unsaturated polyester resin according to claim 1, wherein the alcohol component is a halogenated alcohol.
JP9606784A 1984-05-14 1984-05-14 Production of pale unsaturated polyester resin Granted JPS60240723A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9606784A JPS60240723A (en) 1984-05-14 1984-05-14 Production of pale unsaturated polyester resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9606784A JPS60240723A (en) 1984-05-14 1984-05-14 Production of pale unsaturated polyester resin

Publications (2)

Publication Number Publication Date
JPS60240723A true JPS60240723A (en) 1985-11-29
JPH0414703B2 JPH0414703B2 (en) 1992-03-13

Family

ID=14155075

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9606784A Granted JPS60240723A (en) 1984-05-14 1984-05-14 Production of pale unsaturated polyester resin

Country Status (1)

Country Link
JP (1) JPS60240723A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020117611A (en) * 2019-01-23 2020-08-06 三菱瓦斯化学株式会社 Resin composition, cured product, molding, prepreg, resin sheet, metal foil-clad laminate, printed wiring board, semiconductor device, encapsulant, fiber-reinforced composite material, and adhesive

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020117611A (en) * 2019-01-23 2020-08-06 三菱瓦斯化学株式会社 Resin composition, cured product, molding, prepreg, resin sheet, metal foil-clad laminate, printed wiring board, semiconductor device, encapsulant, fiber-reinforced composite material, and adhesive

Also Published As

Publication number Publication date
JPH0414703B2 (en) 1992-03-13

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