JPH072995A - Unsaturated bisphenol polyester resin - Google Patents
Unsaturated bisphenol polyester resinInfo
- Publication number
- JPH072995A JPH072995A JP14743193A JP14743193A JPH072995A JP H072995 A JPH072995 A JP H072995A JP 14743193 A JP14743193 A JP 14743193A JP 14743193 A JP14743193 A JP 14743193A JP H072995 A JPH072995 A JP H072995A
- Authority
- JP
- Japan
- Prior art keywords
- bisphenol
- polyester resin
- alkylene oxide
- unsaturated polyester
- added
- 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
- Polyesters Or Polycarbonates (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、繊維強化プラスチック
（以下ＦＲＰと記す）成形物、特にゲルコート層を有す
るＦＲＰ成形物のマトリックス樹脂としての不飽和ポリ
エステル樹脂に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an unsaturated polyester resin as a matrix resin for a fiber reinforced plastic (hereinafter referred to as "FRP") molded product, particularly an FRP molded product having a gel coat layer.
【０００２】[0002]
【従来の技術】ビスフェノールＡアルキレンオキサイド
付加物とジカルボン酸成分よりなるビスフェノール系不
飽和ポリエステル樹脂は、耐蝕性に優れ、高温水による
煮沸試験においても優れた性能を示しバスタブ等のゲル
コートや、耐蝕ＦＲＰ等に多用されている。2. Description of the Related Art A bisphenol unsaturated polyester resin composed of a bisphenol A alkylene oxide adduct and a dicarboxylic acid component has excellent corrosion resistance and shows excellent performance even in a boiling test with high temperature water, and a gel coat such as a bathtub or a corrosion resistant FRP. It is often used for etc.
【０００３】[0003]
【発明が解決しようとする課題】しかし、従来のビスフ
ェノールＡアルキレンオキサイド付加物とジカルボン酸
成分よりなるビスフェノール系不飽和ポリエステル樹脂
では、硬化前のプレポリマーの粘度が高くなる。このた
めに、架橋剤として使用するビニルモノマーの添加によ
り硬化前のプレポリマーの粘度を好ましい値に下げて使
用するが、ビニルモノマーを多量に使用するので硬化後
の収縮が大きく、ひけやガラス目を生じる結果、製品の
表面の外観が良くないという問題があった。However, in a conventional bisphenol unsaturated polyester resin comprising a bisphenol A alkylene oxide adduct and a dicarboxylic acid component, the viscosity of the prepolymer before curing becomes high. For this reason, the viscosity of the prepolymer before curing is lowered to a preferable value by adding a vinyl monomer used as a cross-linking agent, but since a large amount of vinyl monomer is used, the shrinkage after curing is large, and the shrinkage or glass As a result, there is a problem that the appearance of the surface of the product is not good.
【０００４】[0004]
【課題を解決するための手段】本発明のビスフェノール
Ｆアルキレンオキサイド付加物を含むグリコール成分と
ジカルボン酸成分よりなる不飽和ポリエステル樹脂のプ
レポリマーの粘度は、同一モル比からなるビスフェノー
ルＡアルキレンオキサイド付加物とジカルボン酸成分よ
りなる不飽和ポリエステル樹脂プレポリマーの粘度に比
べて低いので、好ましい粘度に低下させるために添加す
るビニルモノマーの使用量を減らす事が出来た。この結
果、ビスフェノールＦアルキレンオキサイド付加物とジ
カルボン酸成分よりなるビスフェノール系不飽和ポリエ
ステル樹脂は、ビスフェノールＡアルキレンオキサイド
付加物とジカルボン酸成分よりなるビスフェノール系不
飽和ポリエステル樹脂に比べて、硬化後の外観が向上す
ることを見出し本発明を完成させた。すなわち、本発明
は一般式（Ｉ）The viscosity of a prepolymer of an unsaturated polyester resin comprising a glycol component containing a bisphenol F alkylene oxide adduct of the present invention and a dicarboxylic acid component has the same molar ratio of bisphenol A alkylene oxide adduct. Since it is lower than the viscosity of the unsaturated polyester resin prepolymer composed of the dicarboxylic acid component, it was possible to reduce the amount of vinyl monomer added to reduce the viscosity to a preferable value. As a result, the bisphenol unsaturated polyester resin composed of the bisphenol F alkylene oxide adduct and the dicarboxylic acid component has an appearance after curing as compared with the bisphenol unsaturated polyester resin composed of the bisphenol A alkylene oxide adduct and the dicarboxylic acid component. The present invention has been completed by finding out that it is improved. That is, the invention has the general formula (I)
【化２】 （Ｒはアルキレンオキサイドを示す）で示されるビスフ
ェノールＦアルキレンオキサイド付加物を含むグリコー
ル成分とジカルボン酸成分とよりなるビスフェノール系
不飽和ポリエステル樹脂、とくに二核体純度が９５％以
上であるビスフェノールＦのアルキレンオキサイド付加
物を含むグリコール成分とジカルボン酸成分と低含有率
の架橋剤とよりなるビスフェノール系不飽和ポリエステ
ル樹脂に関するものである。[Chemical 2] (R represents alkylene oxide), a bisphenol unsaturated polyester resin comprising a glycol component containing a bisphenol F alkylene oxide adduct represented by (R) and a dicarboxylic acid component, and particularly an alkylene of bisphenol F having a binuclear purity of 95% or more. The present invention relates to a bisphenol unsaturated polyester resin comprising a glycol component containing an oxide adduct, a dicarboxylic acid component and a crosslinking agent having a low content.
【０００５】初めに、本発明では、プレポリマーとは、
ビスフェノールＦアルキレンオキサイド付加物を含むグ
リコール成分とジカルボン酸成分との脱水縮合生成物を
言い、この脱水縮合生成物に微量の重合禁止剤と架橋剤
を添加したものを不飽和ポリエステル樹脂と言い、この
不飽和ポリエステル樹脂に重合促進剤を加えたものを不
飽和ポリエステル樹脂混合物と言い、この不飽和ポリエ
ステル樹脂混合物を硬化したものを不飽和ポリエステル
樹脂硬化物と言い、前記不飽和ポリエステル樹脂に更に
揺変剤とビニルモノマーとを添加したものを積層用不飽
和ポリエステル樹脂と言い、これに重合促進剤を加えた
ものを積層用不飽和ポリエステル樹脂混合物と言う。本
発明に使用されるビスフェノールＦアルキレンオキサイ
ド付加物としては、特許出願番号Ｈ０４−２６８６４５
に記載されているような低粘度の物を使用することがで
きる。好ましくは、二核体含有率が９５％以上のビスフ
ェノールＦのエチレンオキサイド、プロピレンオキサイ
ドまたはブテンオキサイド付加物が使用できる。またビ
スフェノールＦアルキレンオキサイド付加物は従来のビ
スフェノールＡアルキレンオキサイド付加物と混合して
所望の粘度に低下させて使用することもできる。First, in the present invention, the prepolymer is
This is a dehydration condensation product of a glycol component containing a bisphenol F alkylene oxide adduct and a dicarboxylic acid component, and a product obtained by adding a trace amount of a polymerization inhibitor and a crosslinking agent to this dehydration condensation product is called an unsaturated polyester resin. An unsaturated polyester resin mixture with a polymerization accelerator added is referred to as an unsaturated polyester resin mixture, and a cured product of this unsaturated polyester resin mixture is referred to as an unsaturated polyester resin cured product. What added the agent and the vinyl monomer is called the unsaturated polyester resin for lamination, and what added the polymerization accelerator to this is called the unsaturated polyester resin mixture for lamination. Examples of the bisphenol F alkylene oxide adduct used in the present invention include Patent Application No. H04-268645.
It is possible to use low viscosity products such as those described in. Preferably, an ethylene oxide, propylene oxide or butene oxide adduct of bisphenol F having a binuclear content of 95% or more can be used. Further, the bisphenol F alkylene oxide adduct can be used by mixing it with a conventional bisphenol A alkylene oxide adduct to reduce the viscosity to a desired value.
【０００６】ビスフェノールＦアルキレンオキサイド付
加物以外のグリコール成分としては、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、ジ
プロピレングリコール、各種ブタンジオール類、ネオペ
ンチルグリコール、１，６−ヘキサンジオール、水素化
ビスフェノール等が挙げられる。これらは単独でも使用
できるが、所望の物性を得るために二以上のものを混合
して使用することもできる。Examples of the glycol component other than the bisphenol F alkylene oxide adduct include ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, various butanediols, neopentyl glycol, 1,6-hexanediol, hydrogenated bisphenol and the like. To be These may be used alone, or two or more of them may be mixed and used to obtain desired physical properties.
【０００７】また、本発明に使用されるジカルボン酸と
しては、不飽和酸であるマレイン酸、フマル酸、飽和酸
であるフタル酸、無水フタル酸、イソフタル酸、テレフ
タル酸、ＨＥＴ酸等が挙げられる。これらのジカルボン
酸は単独でも、二以上のものを混合して使用することも
できる。Examples of the dicarboxylic acid used in the present invention include unsaturated acids such as maleic acid, fumaric acid, saturated acids such as phthalic acid, phthalic anhydride, isophthalic acid, terephthalic acid and HET acid. . These dicarboxylic acids may be used alone or in combination of two or more.
【０００８】架橋剤としてはビニルモノマーが用いら
れ、例えばスチレン、ビニルトルエン、ジビニルベンゼ
ン、α−メチルスチレン、メタクリル酸、メタクリル酸
メチル等のメタクリル酸エステル類、アクリル酸、アク
リル酸メチル等のアクリル酸エステル類が例示される。
これらの架橋剤は前記のビスフェノール系アルキレンオ
キサイド付加物、グリコール成分およびジカルボン酸成
分に混合され、プレポリマーの粘度を低下させる作用も
行う。不飽和ポリエステル樹脂中の架橋剤の使用量は３
０〜６０重量％が好ましい。不飽和ポリエステル樹脂中
の架橋剤の量が３０重量％より少ないと不飽和ジカルボ
ン酸の二重結合の架橋が不十分となり耐水性が悪くな
り、また６０重量％を越えると成形された不飽和ポリエ
ステル樹脂硬化物の収縮が大きく、ひけおよびガラス目
等を生じる。As the cross-linking agent, a vinyl monomer is used, and examples thereof include styrene, vinyltoluene, divinylbenzene, α-methylstyrene, methacrylic acid esters such as methacrylic acid and methyl methacrylate, acrylic acid such as acrylic acid and methyl acrylate. Esters are exemplified.
These cross-linking agents are mixed with the above-mentioned bisphenol-based alkylene oxide adduct, glycol component and dicarboxylic acid component, and also act to reduce the viscosity of the prepolymer. The amount of crosslinking agent used in unsaturated polyester resin is 3
0 to 60% by weight is preferable. If the amount of the cross-linking agent in the unsaturated polyester resin is less than 30% by weight, the cross-linking of the double bond of the unsaturated dicarboxylic acid becomes insufficient and the water resistance becomes poor, and if it exceeds 60% by weight, the unsaturated polyester molded is formed. The shrinkage of the resin cured product is large, causing sink marks and glass eyes.
【０００９】本発明における不飽和ポリエステル樹脂は
従来の溶剤法、窒素法等により製造することができる。
例えば、原料として上記ビスフェノール系アルキレンオ
キサイド付加物、その他のグリコール成分、ジカルボン
酸成分を反応器に装入し、温度１８０〜２３０℃好まし
くは２００〜２２０℃で脱水縮合反応を行なう。得られ
るプレポリマーの酸価が４０ mgKOH/g以下好ましくは３
０ mgKOH/g以下となる点を反応の終点として、反応終了
後これに重合禁止剤等を添加し、架橋剤であるビニルモ
ノマーを添加して、均一に攪拌溶解して不飽和ポリエス
テル樹脂とする。得られた不飽和ポリエステル樹脂は液
体であり、その粘度はビニルモノマー含有量により任意
に調整可能であるが、１〜５０ポイズ、好ましくは２〜
２０ポイズである。The unsaturated polyester resin of the present invention can be produced by a conventional solvent method, nitrogen method or the like.
For example, the above-mentioned bisphenol-based alkylene oxide adduct, other glycol component, and dicarboxylic acid component are charged as a raw material into a reactor, and dehydration condensation reaction is carried out at a temperature of 180 to 230 ° C, preferably 200 to 220 ° C. The acid value of the obtained prepolymer is 40 mgKOH / g or less, preferably 3
The end point of the reaction is 0 mgKOH / g or less, and after the reaction is completed, a polymerization inhibitor or the like is added thereto, a vinyl monomer as a crosslinking agent is added, and the mixture is uniformly stirred and dissolved to obtain an unsaturated polyester resin. . The obtained unsaturated polyester resin is a liquid, and its viscosity can be arbitrarily adjusted by the vinyl monomer content, but it is 1 to 50 poise, preferably 2 to
20 poise.
【００１０】このようにして得られた不飽和ポリエステ
ル樹脂は、重合促進剤及び硬化剤が加えられ、均一に攪
拌混合された後、型枠に注型し硬化させて板を得たり、
あるいは、揺変剤を添加して、成形型に吹き付け硬化さ
せて積層板を得ることができる。The unsaturated polyester resin thus obtained is added with a polymerization accelerator and a curing agent, uniformly stirred and mixed, and then cast in a mold and cured to obtain a plate,
Alternatively, a thixotropic agent may be added and sprayed and cured in a mold to obtain a laminate.
【００１１】重合促進剤としては、ナフテン酸コバル
ト、オクテン酸コバルト、ナフテン酸銅、ナフテン酸マ
ンガン、ジメチルアニリン等が用いられ、添加量として
は不飽和ポリエステル樹脂１００部に対し０．１〜２．
０部が好ましい。As the polymerization accelerator, cobalt naphthenate, cobalt octenoate, copper naphthenate, manganese naphthenate, dimethylaniline and the like are used, and the addition amount is 0.1 to 2. per 100 parts of the unsaturated polyester resin.
0 part is preferred.
【００１２】硬化剤としては、メチルエチルケトンパー
オキサイド、アセチルアセトンパーオキサイド、イソブ
チルメチルケトンパーオキサイド、ベンゾイルパーオキ
サイド、ｔ−ブチルパーベンズェート、ｔ−ブチルハイ
ドロパーオキサイド、ラウリルパーオキサイド、シクロ
ヘキサノンパーオキサイド、クメンハイドロパーオキサ
イド等のパーオキサイドが使用され、添加量としてはプ
レポリマー１００部に対し０．３〜３．０部が好まし
い。Examples of the curing agent include methyl ethyl ketone peroxide, acetylacetone peroxide, isobutyl methyl ketone peroxide, benzoyl peroxide, t-butyl perbenzoate, t-butyl hydroperoxide, lauryl peroxide, cyclohexanone peroxide, cumene hydrol. A peroxide such as peroxide is used, and the addition amount is preferably 0.3 to 3.0 parts with respect to 100 parts of the prepolymer.
【００１３】[0013]
【実施例】以下、本発明を更に具体的に説明するため実
施例及び比較例を挙げて説明するが、本発明はこれらの
実施例に限定されるものではない。EXAMPLES The present invention will be described below in more detail with reference to Examples and Comparative Examples, but the present invention is not limited to these Examples.
【００１４】実施例 １ フマル酸１６３部とビスフェノールＦ２．８０ＰＯ付加
物（三井東圧化学（株）製、ＫＦ３００Ｃ）５３５部を
常法に従い脱水縮合を行ない、反応生成物の酸価が所定
の値を示した時点で、禁止剤としてハイドロキノン０．
０１部を入れスチレン３５０部を加えて溶解し、不飽和
ポリエステル樹脂を得た。この不飽和ポリエステル樹脂
の１００部に対し、６％ナフテン酸コバルト０．５部、
５５％メチルエチルケトンパーオキサイド１．０部を配
合した。次にこの混合物を３mm厚の型枠に注型硬化させ
注型板１を得た。さらに、この不飽和ポリエステル樹脂
に、揺変剤（徳山ソーダ（株）製、レオロシール１０２
Ｌ）とスチレンモノマーを更に添加して、この時スチレ
ン量の合計が５０〜５３％の範囲内になるようにして、
粘度２．５ポイズ、揺変性３、常温ゲル化時間１２分に
調節して積層用不飽和ポリエステル樹脂を得た後、重合
促進剤を加えて積層用不飽和ポリエステル樹脂混合物を
得た。次に成形型を用意し、常法の吹き付け成形によ
り、バスタブ用ゲルコートを約０．５mmの厚みに塗布し
アフターキュアー後、上記積層用不飽和ポリエステル樹
脂混合物及びガラスマット（３６０ｇ／m2）を用いて中
間層を成形し、更にその後、従来の不飽和ポリエステル
樹脂（三井東圧化学（株）製、エスターＲ２３５）及び
ガラスマット（４５０ｇ／m2）を用いて補強層を成形
し、硬化後、成形型から脱型し、厚さ約２．５mmの積層
板１を得た。Example 1 163 parts of fumaric acid and 535 parts of a bisphenol F2.80PO adduct (KF300C, manufactured by Mitsui Toatsu Chemicals, Inc.) were dehydrated and condensed by a conventional method, and the acid value of the reaction product was a predetermined value. At the time when the value was shown, hydroquinone of 0.1.
01 parts was added and 350 parts of styrene was added and dissolved to obtain an unsaturated polyester resin. To 100 parts of this unsaturated polyester resin, 0.5 parts of 6% cobalt naphthenate,
1.0 part of 55% methyl ethyl ketone peroxide was blended. Next, this mixture was cast and cured in a 3 mm thick mold to obtain a casting plate 1. Further, this unsaturated polyester resin is mixed with a thixotropic agent (Tokuyama Soda Co., Ltd., Reoro Seal 102).
L) and styrene monomer are further added so that the total amount of styrene at this time is within the range of 50 to 53%.
The viscosity was adjusted to 2.5 poise, thixotropy 3 and room temperature gelation time was adjusted to 12 minutes to obtain an unsaturated polyester resin for lamination, and then a polymerization accelerator was added to obtain an unsaturated polyester resin mixture for lamination. Next, a molding die is prepared, and a gel coat for bathtub is applied to a thickness of about 0.5 mm by a conventional blow molding and after curing, the above unsaturated polyester resin mixture for lamination and a glass mat (360 g / m 2 ) are applied. An intermediate layer is molded using the above, and then a reinforcing layer is molded using a conventional unsaturated polyester resin (Estar R235, manufactured by Mitsui Toatsu Chemicals, Inc.) and a glass mat (450 g / m 2 ) and after curing. Then, the mold was released from the mold to obtain a laminated plate 1 having a thickness of about 2.5 mm.
【００１５】実施例２；フマル酸１７３部、ビスフェノ
ールＦ２．４０ＰＯ付加物（三井東圧化学（株）製、Ｋ
Ｆ３００Ｂ）５２８部を用い、実施例１と同様にして注
型板２、積層板２を得た。Example 2 173 parts of fumaric acid, bisphenol F2.40PO adduct (K, manufactured by Mitsui Toatsu Chemicals, Inc.)
(F300B) 528 parts were used to obtain a casting plate 2 and a laminated plate 2 in the same manner as in Example 1.
【００１６】実施例３；フマル酸１６５部、ビスフェノ
ールＦ３．５６ＥＯ付加物（三井東圧化学（株）製、Ｋ
Ｆ３０１）５２８部を用い、実施例１と同様にして注型
板３、積層板３を得た。Example 3 165 parts of fumaric acid, bisphenol F3.56EO adduct (manufactured by Mitsui Toatsu Chemicals, Inc., K
F301) 528 parts were used to obtain a casting plate 3 and a laminated plate 3 in the same manner as in Example 1.
【００１７】実施例４；フマル酸１７４部、ビスフェノ
ールＦ２．４０ＰＯ付加物（三井東圧化学（株）製、Ｋ
Ｆ０３０、ＢＰＦの二核体純度９０．４％）５２７部を
用い、実施例１と同様にして注型板４、積層板４を得
た。Example 4 174 parts of fumaric acid, bisphenol F2.40PO adduct (K, manufactured by Mitsui Toatsu Chemicals, Inc.)
A casting plate 4 and a laminated plate 4 were obtained in the same manner as in Example 1, using 527 parts of F030 and BPF binuclear purity 90.4%).
【００１８】実施例５；フマル酸２３１部、ビスフェノ
ールＦ２．４０ＰＯ付加物（三井東圧化学（株）製、Ｋ
Ｆ３００Ｂ）３７９部、ネオペンチルグリコール１０９
部を用い、実施例１と同様にして注型板５、積層板５を
得た。Example 5: 231 parts of fumaric acid, bisphenol F2.40PO adduct (K, manufactured by Mitsui Toatsu Chemicals, Inc.)
F300B) 379 parts, neopentyl glycol 109
Using the parts, a cast plate 5 and a laminated plate 5 were obtained in the same manner as in Example 1.
【００１９】比較例１；フマル酸１６６部、ビスフェノ
ールＡ２．２０ＰＯ付加物（三井東圧化学（株）製、Ｋ
Ｒ３００）５３４部を用い、実施例１同様にして注型板
６、積層板６を得た。Comparative Example 1 166 parts of fumaric acid, bisphenol A 2.20 PO adduct (K, manufactured by Mitsui Toatsu Chemicals, Inc.)
R300) 534 parts were used to obtain a casting plate 6 and a laminated plate 6 in the same manner as in Example 1.
【００２０】比較例２；積層用樹脂として、三井東圧化
学（株）製、エスターＲ２８９Ａ（スチレン量５８〜６
０％）を用いて実施例１と同様にして注型板７、積層板
７を得た。エスターＲ２８９Ａは、耐煮沸性が良好であ
り、バスタブ等に使用されている。表１に注型板の耐煮
沸性および積層板の外観評価を示す。Comparative Example 2 As a resin for lamination, Mitsui Toatsu Chemical Co., Ltd., Ester R289A (styrene content 58-6)
0%) was used to obtain a casting plate 7 and a laminated plate 7 in the same manner as in Example 1. Ester R289A has good boiling resistance and is used in bathtubs and the like. Table 1 shows the boiling resistance of the casting plate and the appearance evaluation of the laminated plate.
【００２１】[0021]
【発明の効果】本発明により、耐煮沸性が良好で、ひ
け、ガラス目等の外観が改良されたＦＲＰの成形が可能
になった。Industrial Applicability According to the present invention, it is possible to mold an FRP having good boiling resistance and improved appearance such as sink marks and glass eyes.
【００２２】[0022]
【表１】 [Table 1]
フロントページの続き (72)発明者 安藤 慎二 大阪府高石市高砂１丁目６番地 三井東圧 化学株式会社内 (72)発明者 伊藤 健滋 大阪府高石市高砂１丁目６番地 三井東圧 化学株式会社内Front page continued (72) Inventor Shinji Ando 1-6 Takasago, Takaishi, Osaka Prefecture Mitsui Toatsu Chemical Co., Ltd. (72) Inventor Kenji Ito 1-6 Takasago, Takaishi City, Osaka Mitsui Toatsu Chemical Co., Ltd.
Claims (4)
ェノールＦアルキレンオキサイド付加物を含むグリコー
ル成分とジカルボン酸成分とビニルモノマー架橋剤とよ
りなるビスフェノール系不飽和ポリエステル樹脂。1. A compound represented by the general formula (I): A bisphenol unsaturated polyester resin comprising a glycol component containing a bisphenol F alkylene oxide adduct represented by (R represents an alkylene oxide), a dicarboxylic acid component, and a vinyl monomer crosslinking agent.
イド、プロピレンオキサイドまたはブチレンオキサイド
である請求項１記載のビスフェノール系不飽和ポリエス
テル樹脂。2. The bisphenol unsaturated polyester resin according to claim 1, wherein the alkylene oxide is ethylene oxide, propylene oxide or butylene oxide.
以上である請求項１記載のビスフェノール系不飽和ポリ
エステル樹脂。3. The binuclear purity of bisphenol F is 95%.
The bisphenol unsaturated polyester resin according to claim 1, which is the above.
０重量％である請求項１記載のビスフェノール系不飽和
ポリエステル樹脂。4. The vinyl monomer crosslinking agent content is 30-6.
The bisphenol unsaturated polyester resin according to claim 1, which is 0% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14743193A JPH072995A (en) | 1993-06-18 | 1993-06-18 | Unsaturated bisphenol polyester resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14743193A JPH072995A (en) | 1993-06-18 | 1993-06-18 | Unsaturated bisphenol polyester resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH072995A true JPH072995A (en) | 1995-01-06 |
Family
ID=15430171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14743193A Pending JPH072995A (en) | 1993-06-18 | 1993-06-18 | Unsaturated bisphenol polyester resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH072995A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190084549A (en) * | 2018-01-08 | 2019-07-17 | 주식회사 엘지화학 | Core-shell copolymer, method for preparing the copolymer and resin composition comprising the copolymer |
| EP4108703A4 (en) * | 2020-02-17 | 2024-07-10 | Toyo Boseki | Aromatic polyester and method for producing same |
-
1993
- 1993-06-18 JP JP14743193A patent/JPH072995A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190084549A (en) * | 2018-01-08 | 2019-07-17 | 주식회사 엘지화학 | Core-shell copolymer, method for preparing the copolymer and resin composition comprising the copolymer |
| EP4108703A4 (en) * | 2020-02-17 | 2024-07-10 | Toyo Boseki | Aromatic polyester and method for producing same |
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