JPH05269872A - Production of unsaturated polyester resin molded object - Google Patents
Production of unsaturated polyester resin molded objectInfo
- Publication number
- JPH05269872A JPH05269872A JP4100345A JP10034592A JPH05269872A JP H05269872 A JPH05269872 A JP H05269872A JP 4100345 A JP4100345 A JP 4100345A JP 10034592 A JP10034592 A JP 10034592A JP H05269872 A JPH05269872 A JP H05269872A
- Authority
- JP
- Japan
- Prior art keywords
- unsaturated polyester
- polyester resin
- film
- resin molded
- oxygen permeability
- 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
Links
Landscapes
- Moulding By Coating Moulds (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は不完全硬化状態の表面を
有する不飽和ポリエステル樹脂成形体の製造方法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing an unsaturated polyester resin molded product having an incompletely cured surface.
【０００２】[0002]
【従来の技術】従来、不飽和ポリエステル樹脂成形体の
表面を、キャリヤフイルムで覆う、いわゆるフイルム成
形法には連続成形法とハンドレイアップ成形法がある。
これらの成形方法で得られた不飽和ポリエステル樹脂成
形体を接合したり、表面に仕上げ剤を上塗りする等の２
次接着加工が行われ、その際不飽和ポリエステル樹脂成
形体表面の接着性等を良くするため表面の研磨、溶剤に
よる脱脂あるいは表面処理剤（プライマー処理剤等）の
塗布が行われている。2. Description of the Related Art Conventionally, there are a continuous molding method and a hand lay-up molding method as a so-called film molding method in which the surface of an unsaturated polyester resin molded article is covered with a carrier film.
2 such as joining the unsaturated polyester resin moldings obtained by these molding methods, or coating the surface with a finishing agent.
Subsequent adhesion processing is performed. At this time, surface polishing, degreasing with a solvent, or application of a surface treatment agent (primer treatment agent or the like) is performed in order to improve the adhesiveness of the surface of the unsaturated polyester resin molded article.
【０００３】また特開昭６３−１３７１３号公報に開示
されているように、ＦＲＰ板の連続成型プロセスにおい
て，熱硬化性樹脂がゲル化した後完全硬化する前に，キ
ャリヤフイルムを剥離し、表面に不完全硬化状態を作
り，接着性等を改良する方法がある。Further, as disclosed in Japanese Patent Laid-Open No. 63-13713, in a continuous molding process of an FRP plate, the carrier film is peeled off after the thermosetting resin is gelled and before it is completely cured. There is a method to improve the adhesiveness by making an incompletely cured state.
【０００４】[0004]
【発明が解決しようとする課題】しかし、不飽和ポリエ
ステル樹脂成形体の表面を研磨する方法は、粉塵を発生
し作業環境を悪化するとともに、不飽和ポリエステル樹
脂成形体の表面を、発生した粉塵で汚す等の課題があ
る。また研磨の程度の管理が難しく、２次接着加工の品
質に斑を生じることがある。さらに、研磨の作業コスト
が高い等の課題がある。不飽和ポリエステル樹脂成形体
の表面の溶剤による脱脂は、溶剤の気化により作業環境
を悪化する。また、二次接着力もほとんど向上しない。
さらに、不飽和ポリエステル樹脂成形体の表面に、表面
処理剤を塗布する方法は、均一な塗布が難しく、乾燥時
間等のいわゆる２次接着加工を施工するまでのオープン
タイムに制限があり、作業手順が複雑となり、接着強度
等の品質面に斑が生じやすく、コストが高くつく課題が
ある。However, the method of polishing the surface of the unsaturated polyester resin molded body is not suitable for generating a dust and deteriorating the working environment, and the surface of the unsaturated polyester resin molded body is treated with the generated dust. There are issues such as soiling. Further, it is difficult to control the degree of polishing, and unevenness may occur in the quality of the secondary bonding process. Further, there are problems such as high polishing work cost. Degreasing the surface of the unsaturated polyester resin molded product with a solvent deteriorates the working environment due to vaporization of the solvent. Also, the secondary adhesive strength is hardly improved.
Further, in the method of applying a surface treatment agent on the surface of an unsaturated polyester resin molded product, it is difficult to apply it uniformly, and there is a limitation in the open time until the so-called secondary adhesion processing such as drying time is applied. Is complicated, unevenness in quality such as adhesive strength is likely to occur, and there is a problem that cost is high.
【０００５】また特開昭６３−１３７１３号公報に開示
される、ＦＲＰ板の連続成型プロセスにおいて、熱硬化
性樹脂がゲル化した後、完全に硬化する前に、キャリヤ
フイルムを剥離し、表面に不完全硬化状態を作る方法
は、加熱硬化途中の加熱炉の中においてキャリヤフイル
ムを剥離しなければならず、樹脂の硬化状態に斑を生
じ、さらにガスを発生するので、品質の斑及び作業環境
の悪化の課題がある。また加熱炉の中を循環する熱風に
よって埃などが、不完全硬化状態の熱硬化性樹脂に付着
し汚すなどの課題がある。Further, in the continuous molding process of the FRP plate disclosed in Japanese Patent Laid-Open No. 63-13713, after the thermosetting resin has gelled, the carrier film is peeled off before the resin is completely cured, and the surface is In the method of creating an incompletely cured state, the carrier film has to be peeled off in a heating furnace in the middle of heating and curing, which causes unevenness in the cured state of the resin, and further gas is generated. There is a problem of deterioration. Further, there is a problem that dust or the like adheres to the incompletely cured thermosetting resin and is contaminated by the hot air circulating in the heating furnace.
【０００６】本発明は、表面のみが不完全硬化状態で、
成形体は完全に硬化している安定した品質の不飽和ポリ
エステル樹脂成形体を、良い作業環境の中で、制御の難
しいオープンタイムを特に考慮せずに、製造することが
できる不飽和ポリエステル樹脂成形体の製造方法を提供
するものである。In the present invention, only the surface is in an incompletely cured state,
Molded product is completely cured Unsaturated polyester resin molding that can produce stable quality unsaturated polyester resin molded product in good working environment without considering open time that is difficult to control. A method of manufacturing a body is provided.
【０００７】[0007]
【課題を解決するための手段】前記課題は本発明の不飽
和ポリエステル樹脂の少なくとも一表面に酸素透過度１
６０（cc/m2 24Hr atm 30 μm 換算）以上であるフイル
ムを貼着する不飽和ポリエステル樹脂成形体の製造方法
によって解決される。以下本発明について説明する。The above object is to provide an oxygen permeation rate of 1 on at least one surface of the unsaturated polyester resin of the present invention.
The problem is solved by a method for producing an unsaturated polyester resin molded body in which a film having a thickness of 60 (cc / m 2 24Hr atm 30 μm conversion) or more is attached. The present invention will be described below.
【０００８】本発明の不飽和ポリエステル樹脂の上下両
面を、キャリヤフイルムで挟み、熱硬化する連続製造方
法においては、本発明の酸素透過度１６０（cc/m2 24Hr
atm30 μm 換算）以上であるフイルムをキャリアフイ
ルムとして使用すればよく、またハンドレイアップ製造
方法の場合は、積層された熱硬化性樹脂の表面に、本発
明の酸素透過度１６０（cc/m2 24Hr atm 30 μm 換算）
以上であるフイルムを貼着すればよい。In the continuous production method in which the upper and lower surfaces of the unsaturated polyester resin of the present invention are sandwiched between carrier films and heat-cured, the oxygen permeability of the present invention is 160 (cc / m 2 24Hr).
A film having a thickness of atm 30 μm or more) may be used as the carrier film, and in the case of the hand layup manufacturing method, the oxygen permeability of the present invention is 160 (cc / m 2) on the surface of the laminated thermosetting resin. 24Hr atm 30 μm conversion)
The above film may be attached.
【０００９】本発明の不完全硬化状態の面を得るために
使用するフイルムとは酸素透過度１６０（cc/m2 24Hr a
tm 30 μm 換算）以上であるフイルムである。The film used to obtain the incompletely cured surface of the present invention has an oxygen permeability of 160 (cc / m 2 24 Hr a
tm 30 μm equivalent) or more.
【００１０】本発明でいう酸素透過度はＡＳＴＭ Ｄ−
１５２５−５８による。 酸素透過度１６０（cc/m2 24
Hr atm 30 μm 換算）以上であるフイルムとしては、ポ
リエチレンフイルム、ポリプロピレンフイルムおよびポ
リスチレンフイルムを挙げることができるが、これに限
られるものではなく、連続製造方法あるいはハンドレイ
アップ製造方法に使用できる強度を有し酸素透過度が１
６０（cc/m2 24Hr atm30 μm 換算））以上のフイルム
であればよい。例えばそのままでは使用できないナイロ
ンフイルムに細孔を穿ち酸素透過度が１６０（cc/m2 24
Hr atm 30 μm換算））以上として用いることもでき
る。The oxygen permeability referred to in the present invention is ASTM D-
According to 1525-58. Oxygen permeability 160 (cc / m 2 24
Examples of the film having a Hr atm of 30 μm or more) include polyethylene film, polypropylene film and polystyrene film, but are not limited thereto, and have a strength that can be used in a continuous manufacturing method or a hand layup manufacturing method. Having oxygen permeability of 1
The film may be 60 (cc / m 2 24Hr atm 30 μm conversion) or more. For example, the nylon film, which cannot be used as it is, has pores perforated and has an oxygen permeability of 160 (cc / m 2 24
Hr atm 30 μm conversion)) or more.
【００１１】不飽和ポリエステル樹脂に含有されるスチ
レンモノマーに溶解しない、ポリエチレンフイルムおよ
びポリプロピレンフイルム等のフイルムは、不飽和ポリ
エステル樹脂の硬化が完了したのち不飽和ポリエステル
樹脂成形体から剥がしてもよいが、そのまま貼着してお
き、必要とする際に剥離してもよい。Films such as polyethylene film and polypropylene film which are not dissolved in the styrene monomer contained in the unsaturated polyester resin may be peeled off from the unsaturated polyester resin molding after the curing of the unsaturated polyester resin is completed. It may be attached as it is and peeled off when necessary.
【００１２】不飽和ポリエステル樹脂に含有されるスチ
レンモノマーに溶解するポリスチレンフイルムは、不飽
和ポリエステル樹脂成形体にポリスチレンフイルムを貼
着し、脱泡、厚み調整が完了するまでは、不飽和ポリエ
ステル樹脂の表面にフイルムとして成形に寄与するよう
に成形工程を調整することが必要である。ポリスチレン
フイルムはスチレンモノマーに溶解するので、特に剥離
する必要はなくそのまま２次接着をすることができる。
完全硬化状態の面を得るにはキヤリアフイルムとして従
来使用されているセロファン、ナイロン、ビニロン、ポ
リエステルが使用される。The polystyrene film which is soluble in the styrene monomer contained in the unsaturated polyester resin is prepared by adhering the polystyrene film to the unsaturated polyester resin molded product, and defoaming the unsaturated polyester resin until the thickness adjustment is completed. It is necessary to adjust the molding process so as to contribute to the molding as a film on the surface. Since the polystyrene film dissolves in the styrene monomer, it is not necessary to peel it off and the secondary adhesion can be performed as it is.
To obtain a completely cured surface, cellophane, nylon, vinylon or polyester, which is conventionally used as a carrier film, is used.
【００１３】[0013]
【作用】本発明の不飽和ポリエステル樹脂成形体の製造
方法によると、連続製造方法であれ、ハンドレイアップ
製造方法であれ、酸素透過度１６０（cc/m2 24Hr atm 3
0 μm 換算）以上であるフイルムを貼着された不飽和ポ
リエステル樹脂の表面は、フイルムを透過した酸素によ
り、硬化阻害が起こり不完全硬化状態となる。According to the method for producing an unsaturated polyester resin molding of the present invention, the oxygen permeability is 160 (cc / m 2 24Hr atm 3) regardless of whether it is a continuous production method or a hand layup production method.
On the surface of the unsaturated polyester resin having a film of 0 μm or more) adhered thereto, the oxygen permeating the film causes curing inhibition and becomes an incompletely cured state.
【００１４】[0014]
［実施例１］不飽和ポリエステル樹脂（大日本インキ化
学工業（株）社製、商品名 ＮＡ−１２８）１００重量
部に対し、ＢＰＯ（化薬アクゾ（株）製、カドックスＢ
−ＣＨ５０）１．０重量部、ＣＨＰ（日本油脂（株）
製、Ｈ−８０）０．５重量部を加え樹脂シロップを得
た。次にガラス板上にナイロンフイルム（ユニチカ
（株）社製 ＯＮ＃２５００）を敷きその上にチョップ
ドストランドマット（日東紡績（株）製 商品番号ＭＣ
−４５０）３枚積層しその上から樹脂シロップを含浸し
その上にポリエチレンフイルム（東和化工（株）製、Ｈ
ＤＰＥ、酸素透過率２，９００ｃｃ／ｍ2 、24Hr・atm
）を敷き、ガラス棒でしごくようにして十分脱泡した
後その上からガラス板で押さえて厚さ２．５ｍｍに調製
し乾燥器にいれ７０℃で３０分間加熱して硬化させた。
引き続いて１２０℃で１０分間の後硬化を行い冷却し厚
さ２．５ｍｍの不飽和ポリエステル樹脂成形板１（以下
実施例板１という）を得た。[Example 1] 100 parts by weight of an unsaturated polyester resin (manufactured by Dainippon Ink and Chemicals, Inc., trade name: NA-128) was added to BPO (manufactured by Kayaku Akzo Co., Ltd., Cadox B).
-CH50) 1.0 part by weight, CHP (NOF CORPORATION)
(Manufactured by H-80) was added to obtain a resin syrup. Next, a nylon film (ON # 2500 manufactured by Unitika Ltd.) is laid on a glass plate, and a chopped strand mat (product number MC manufactured by Nitto Boseki Co., Ltd.) is laid on the nylon film.
-450) 3 sheets were laminated, and a resin syrup was impregnated on top of them, and polyethylene film (manufactured by Towa Kako Co., Ltd., H
DPE, oxygen permeability 2,900 cc / m 2 , 24Hr · atm
) Was squeezed and thoroughly defoamed with a glass rod, and then a glass plate was pressed from above to adjust the thickness to 2.5 mm, which was placed in a dryer and heated at 70 ° C. for 30 minutes to cure.
Subsequently, post-curing was carried out at 120 ° C. for 10 minutes, followed by cooling to obtain an unsaturated polyester resin molded plate 1 (hereinafter referred to as Example plate 1) having a thickness of 2.5 mm.
【００１５】［実施例２］ポリエチレンフイルム（東和
化工（株）製、ＨＤＰＥ、酸素透過率２，９００ｃｃ／
ｍ2 、24Hr・atm ）の代わりにポリプロピレンフイルム
（東京セロファン紙（株）社製ＯＰＵ−１＃３０，厚さ
３０μｍ，酸素透過率１７００ｃｃ／ｍ2・24hr）を使
用した以外は実施例１と同様にして厚さ２．５ｍｍの不
飽和ポリエステル樹脂成形板２（以下実施例板２とい
う）を得た。[Example 2] Polyethylene film (manufactured by Towa Kako Co., Ltd., HDPE, oxygen permeability 2,900 cc /
Example 2 except that polypropylene film (OPU-1 # 30 manufactured by Tokyo Cellophane Paper Co., Ltd., thickness 30 μm, oxygen transmission rate 1700 cc / m 2 · 24 hr) was used in place of m 2 and 24 Hr · atm). Similarly, a 2.5 mm-thick unsaturated polyester resin molded plate 2 (hereinafter referred to as Example plate 2) was obtained.
【００１６】［実施例３］ポリエチレンフイルム（東和
化工（株）製、ＨＤＰＥ、酸素透過率２，９００ｃｃ／
ｍ2 、24Hr・atm ）の代わりにポリプロピレンフイルム
（東京セロファン紙（株）社製ＯＰＵ−１＃６０，厚さ
６０μｍ，酸素透過率１６５０ｃｃ／ｍ2・24hr）を使
用した以外は実施例１と同様にして厚さ２．５ｍｍの不
飽和ポリエステル樹脂成形板３（以下実施例板３とい
う）を得た。[Example 3] Polyethylene film (manufactured by Towa Kako Co., Ltd., HDPE, oxygen permeability 2,900 cc /
Example 2 except that polypropylene film (OPU-1 # 60 manufactured by Tokyo Cellophane Paper Co., Ltd., thickness 60 μm, oxygen transmission rate 1650 cc / m 2 · 24 hr) was used in place of m 2 and 24 Hr · atm). Similarly, an unsaturated polyester resin molded plate 3 (hereinafter referred to as Example plate 3) having a thickness of 2.5 mm was obtained.
【００１７】［実施例４］ポリエチレンフイルム（東和
化工（株）製、ＨＤＰＥ、酸素透過率２，９００ｃｃ／
ｍ2 、24Hr・atm ）の代わりにポリスチレンフイルム
（旭化成工業（株）社製、スタイロフィルムＧＰ３０，
酸素透過率６６００ｃｃ／ｍ2 ・２４ｈｒ）を使用した
以外は実施例１と同様にして厚さ２．５ｍｍの不飽和ポ
リエステル樹脂成形板４（以下実施例板４という）を得
た。[Example 4] Polyethylene film (manufactured by Towa Kako Co., Ltd., HDPE, oxygen permeability 2,900 cc /
m 2, 24Hr · atm) instead of polystyrene film of (Asahi Chemical Industry Co., Ltd., Stylo film GP30,
An unsaturated polyester resin molded plate 4 (hereinafter referred to as Example plate 4) having a thickness of 2.5 mm was obtained in the same manner as in Example 1 except that the oxygen permeability was 6600 cc / m 2 · 24 hr).
【００１８】［比較例］ポリエチレンフイルム（東和化
工（株）製、ＨＤＰＥ、酸素透過率２，９００ｃｃ／ｍ
2 、24Hr・atm ）の代わりにナイロンフイルム（ユニチ
カ（株）社製ＯＮ＃２５００）を使用した以外は実施例
１と同様にして厚さ２．５ｍｍの不飽和ポリエステル樹
脂成形板（以下比較例板１という）を得た。[Comparative Example] Polyethylene film (manufactured by Towa Kako Co., Ltd., HDPE, oxygen permeability 2,900 cc / m)
2 , 24 Hr · atm) was replaced with a nylon film (ON # 2500 manufactured by Unitika Ltd.) in the same manner as in Example 1 to form a 2.5 mm thick unsaturated polyester resin molded plate (Comparative Example below). Board 1) was obtained.
【００１９】［比較試験］実施例１〜４及び比較例１で
得た不飽和ポリエステル樹脂成形板（実施例板１〜４及
び比較例板１）のそれぞれからたて２５ｃｍ×よこ１
２．５ｃｍ，厚さ２．５ｍｍの板を２枚得た。図１に示
すとおり該２枚の板のたて方向側面をつき合わせ、つき
合わせ面を中心に巾１０ｃｍを接着面とした。接着面を
表１に示す接着面処理をした後接着面にチョップドスト
ランドマット（日東紡績（株）製、ＭＣ−４５０：巾１
０ｃｍ 長さ２５ｃｍ）を３枚積層し、硬化剤入りの不
飽和ポリエステル樹脂（日本油脂（株）製 パーメック
Ｎ／ナフテン酸コバルト＝１．０：０．５）を含浸し、
２５℃で４８時間放置した。次いで前記接着した不飽和
ポリエステル樹脂成形板から図２に示すとおり、つき合
わせ面を中心によこ方向に巾２．５ｃｍ、長さ２５ｃｍ
引張強度試験用試験片を得て引張試験機（島津製作所
（株）製、島津オートグラフＡＧ−５００Ｂ、 試験速
度１ｍｍ／分）を使用し引張り強度（単位接着面積当た
りの最大荷重（ｋｇ／ｃｍ2 ））を求め表１に示した。[Comparative Test] 25 cm vertical by 1 cm wide from each of the unsaturated polyester resin molded plates (Example plates 1 to 4 and Comparative plate 1) obtained in Examples 1 to 4 and Comparative Example 1.
Two sheets having a size of 2.5 cm and a thickness of 2.5 mm were obtained. As shown in FIG. 1, the side surfaces of the two plates in the vertical direction were brought into contact with each other, and a bonding surface having a width of 10 cm centered on the contact surface was used. After the adhesive surface is treated as shown in Table 1, a chopped strand mat (manufactured by Nitto Boseki Co., Ltd., MC-450: width 1) is applied to the adhesive surface.
0 cm length 25 cm), 3 sheets are laminated and impregnated with a curing agent-containing unsaturated polyester resin (Nippon Yushi Co., Ltd. Permek N / cobalt naphthenate = 1.0: 0.5),
It was left at 25 ° C. for 48 hours. Then, from the bonded unsaturated polyester resin molded plate, as shown in FIG. 2, a width of 2.5 cm and a length of 25 cm are centered on the butting surface in the lateral direction.
Obtain a test piece for tensile strength test and use a tensile tester (Shimadzu Corporation, Shimadzu Autograph AG-500B, test speed 1 mm / min) to measure tensile strength (maximum load per unit bonded area (kg / cm). 2 )) was obtained and shown in Table 1.
【００２０】表１に示す接着面処理は以下のとおりであ
る。 アセトン脱脂： 表面に付いている油分等の汚れをアセ
トンを含ませた布で拭き取る。 サンディング： サンディングペーパー（＃１６）で表
面を研磨する。 サンディング＋アセトン脱脂： サンディングペーパー
（＃１６）で表面を研磨し、その後アセトンを含ませた
布で拭き取る。 プライマー塗布：プライマー（東邦化学工業（株）製
商品名ハイセルプライマー）を１００〜１５０ｇ／ｍ2
塗布する。The adhesive surface treatment shown in Table 1 is as follows. Acetone degreasing: Wipe off dirt such as oil on the surface with a cloth soaked in acetone. Sanding: Polish the surface with sanding paper (# 16). Sanding + Acetone degreasing: Polish the surface with sanding paper (# 16) and then wipe with a cloth soaked in acetone. Primer application: Primer (manufactured by Toho Chemical Industry Co., Ltd.)
Product name High cell primer) 100-150 g / m 2
Apply.
【００２１】[0021]
【表１】 [Table 1]
【００２２】[0022]
【発明の効果】以上詳細に述べたとおり本願発明によっ
て製造される不飽和ポリエステル樹脂成形体の酸素透過
度１６０（cc/m2 24Hratm ）以上であるフイルムを貼着
された表面は不完全硬化状態となるので接着等の２次接
着加工に際しても脱脂、サンディング、表面処理剤（プ
ライマー処理剤等）の塗布等の特別の処理を必要とせず
容易にしかも安価に２次接着加工をすることができる。As described above in detail, the surface of the unsaturated polyester resin molding produced by the present invention, which has the oxygen permeability of 160 (cc / m 2 24Hratm) or more, is stuck in an incompletely cured state. Therefore, the secondary adhesion processing such as adhesion does not require special treatment such as degreasing, sanding, application of a surface treatment agent (primer treatment agent, etc.), and the secondary adhesion processing can be performed easily and at low cost. ..
【図１】不飽和ポリエステル樹脂板を接着した模式図。FIG. 1 is a schematic view in which an unsaturated polyester resin plate is bonded.
【図２】図１で得た接着した不飽和ポリエステル樹脂板
から得た引張強度試験用試験片の模式図。FIG. 2 is a schematic diagram of a tensile strength test specimen obtained from the bonded unsaturated polyester resin plate obtained in FIG.
１ 不飽和ポリエステル樹脂板 ２ 接着面 1 Unsaturated polyester resin plate 2 Adhesive surface
Claims (1)
酸素透過度１６０（cc/m2 24Hr atm 30 μm 換算）以
上であるフイルムを貼着することを特徴とする不飽和ポ
リエステル樹脂成形体の製造方法。1. A process for producing an unsaturated polyester resin molded article, which comprises sticking a film having an oxygen permeability of 160 (cc / m 2 24Hr atm 30 μm conversion) or more onto the surface of the unsaturated polyester resin molded article. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4100345A JPH07121558B2 (en) | 1992-03-26 | 1992-03-26 | Method for producing unsaturated polyester resin molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4100345A JPH07121558B2 (en) | 1992-03-26 | 1992-03-26 | Method for producing unsaturated polyester resin molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05269872A true JPH05269872A (en) | 1993-10-19 |
| JPH07121558B2 JPH07121558B2 (en) | 1995-12-25 |
Family
ID=14271530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4100345A Expired - Fee Related JPH07121558B2 (en) | 1992-03-26 | 1992-03-26 | Method for producing unsaturated polyester resin molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07121558B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0596635A (en) * | 1991-10-07 | 1993-04-20 | Takeda Chem Ind Ltd | Forming material |
-
1992
- 1992-03-26 JP JP4100345A patent/JPH07121558B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0596635A (en) * | 1991-10-07 | 1993-04-20 | Takeda Chem Ind Ltd | Forming material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07121558B2 (en) | 1995-12-25 |
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