JP3019527B2 - Fiber-reinforced thermoplastic resin molded article and molding method thereof - Google Patents
Fiber-reinforced thermoplastic resin molded article and molding method thereofInfo
- Publication number
- JP3019527B2 JP3019527B2 JP3239550A JP23955091A JP3019527B2 JP 3019527 B2 JP3019527 B2 JP 3019527B2 JP 3239550 A JP3239550 A JP 3239550A JP 23955091 A JP23955091 A JP 23955091A JP 3019527 B2 JP3019527 B2 JP 3019527B2
- Authority
- JP
- Japan
- Prior art keywords
- thermoplastic resin
- fiber
- reinforced thermoplastic
- sheet
- resin molded
- 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.)
- Expired - Fee Related
Links
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
- Reinforced Plastic Materials (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、外観のよい繊維強化熱
可塑性樹脂成形品を提供するものであり、成形品は車両
部品、弱電機器部品に使用される。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a fiber-reinforced thermoplastic resin molded article having a good appearance, and the molded article is used for vehicle parts and light electric equipment parts.
【０００２】[0002]
【従来の技術】近年、繊維強化熱可塑性樹脂成形品を得
る方法として、繊維強化熱可塑性樹脂シートを加熱し
て、プレス成形により製品得る、いわゆるスタンパブル
・シートの技術が注目されている。この技術は、強化に
もちいる繊維により２つに別けられる。１つは数ｍｍ〜
１００ｍｍ長さの中繊維長の単繊維と熱可塑性樹脂粉末
を湿式、または乾式で混合し、加熱ロールプレスを経て
繊維強化熱可塑性樹脂シートを製造し、これを予備加熱
後、プレスして繊維強化熱可塑性樹脂成形品を得る方法
である（例えば特開昭５７−２８１３５号公報）。もう
一方は、長繊維からなるマット状物に溶融した熱可塑性
樹脂を押出しラミネートし、ロールを経て繊維強化熱可
塑性樹脂シートを製造し、これを予備加熱しプレス成形
で繊維強化熱可塑性樹脂成形品を得るものである。2. Description of the Related Art In recent years, as a method of obtaining a fiber-reinforced thermoplastic resin molded article, a so-called stampable sheet technique of heating a fiber-reinforced thermoplastic resin sheet to obtain a product by press molding has attracted attention. This technique is divided into two parts by the fibers used for reinforcement. One is a few mm ~
A 100 mm long medium fiber length single fiber and a thermoplastic resin powder are mixed in a wet or dry method, a fiber reinforced thermoplastic resin sheet is manufactured through a heated roll press, and after preheating, press is performed to fiber reinforced. This is a method for obtaining a thermoplastic resin molded product (for example, JP-A-57-28135). The other is extruding and laminating a molten thermoplastic resin on a mat-like material made of long fibers, producing a fiber-reinforced thermoplastic resin sheet via a roll, preheating this, and press molding to form a fiber-reinforced thermoplastic resin molded product. Is what you get.
【０００３】[0003]
【発明が解決しようとする課題】これら従来の方法から
得られる繊維強化熱可塑性樹脂成形品はいずれも表面部
分に繊維が現れることから表面外観の粗いものしか得ら
れないという問題点がある。All of the fiber-reinforced thermoplastic resin molded articles obtained by these conventional methods have a problem that only fibers having a rough surface appearance can be obtained because fibers appear on the surface portion.
【０００４】[0004]
【課題を解決するための手段】本願発明者らはこの問題
点を克服する成形加工技術を開発すべく鋭意検討の結
果、本発明に至ったものである。即ち、本発明は、一対
の金型の下金型上に予熱した繊維強化熱可塑性樹脂シー
トと多孔性繊維質シートを重ねて載置し、該多孔性繊維
質シート側の金型内に設けた樹脂通路より溶融状態の熱
可塑性樹脂を供給し、加圧冷却することを特徴とする繊
維強化熱可塑性樹脂成形品の成形方法である。Means for Solving the Problems The present inventors have made intensive studies to develop a molding technique for overcoming this problem, and as a result, have reached the present invention. That is, in the present invention, a preheated fiber-reinforced thermoplastic resin sheet and a porous fibrous sheet are stacked and placed on a lower mold of a pair of molds, and provided in a mold on the porous fibrous sheet side. A method for forming a fiber-reinforced thermoplastic resin molded product, comprising supplying a molten thermoplastic resin from a resin passage that has been melted, and cooling under pressure.
【０００５】本発明に用いる繊維強化熱可塑性樹脂シー
トの強化用の繊維としては、ガラス繊維、カーボン繊
維、ステンレス等の金属繊維などの無機質繊維、アラミ
ド等の有機質繊維、および、無機、有機繊維の混合物を
使用することができ、特にガラス繊維は低コストで、高
い補強効果が得られ、繊維の直径は１〜５０μｍの一般
的に得られる繊維を使用することができ、繊維長は補強
効果の点から５ｍｍ以上のものが好適に用いられる。The fibers for reinforcing the fiber-reinforced thermoplastic resin sheet used in the present invention include inorganic fibers such as glass fibers, carbon fibers and metal fibers such as stainless steel, organic fibers such as aramid, and inorganic and organic fibers. Mixtures can be used, especially glass fiber is low cost, high reinforcing effect can be obtained, fiber diameter can be 1 ~ 50μm commonly available fiber can be used, fiber length is the reinforcing effect Those having a diameter of 5 mm or more from the point are preferably used.
【０００６】また繊維強化熱可塑性樹脂シートのマトリ
ックス樹脂としては、通常、押出成形、射出成形、プレ
ス成形等に用いられている熱可塑性樹脂ならばいづれも
使用可能で、例えば、ポリエチレン、ポリプロピレン、
ポリスチレン、アクリロニトリル・スチレン・ブタジエ
ン共重合体、ポリ塩化ビニル、ポリアミド、ポリカーボ
ネート、ポリエチレンテレフタレート、ポリブチレンフ
タレート、スチレン・アクリロニトリル共重合体等の熱
可塑性樹脂をあげることができ、これらの混合物、これ
らの熱可塑性樹脂を用いたポリマーアロイ等も用いるこ
とができる。特にコストが安く機械的、熱的性質が優れ
ている点から、ポリプロピレン、ナイロン等が好適なも
のとして用いることができる。As the matrix resin of the fiber-reinforced thermoplastic resin sheet, any thermoplastic resin used for extrusion molding, injection molding, press molding and the like can be used. For example, polyethylene, polypropylene, and the like can be used.
Thermoplastic resins such as polystyrene, acrylonitrile-styrene-butadiene copolymer, polyvinyl chloride, polyamide, polycarbonate, polyethylene terephthalate, polybutylene phthalate, styrene-acrylonitrile copolymer, and the like, and mixtures thereof, heat of these A polymer alloy using a plastic resin can also be used. Particularly, polypropylene, nylon, and the like can be preferably used because they are inexpensive and have excellent mechanical and thermal properties.
【０００７】多孔性繊維質シートとしては、長繊維を編
んだもの、長繊維を重ねておきニードル加工したニード
ル加工シート、長繊維をスネーク状に並べバインダーで
シート状にしたもの、５〜５０ｍｍ長の繊維を湿式抄紙
法で製造した抄紙シート等種々なものがあり、いずれも
使用可能である。Examples of the porous fibrous sheet include a knitted long fiber, a needle-processed sheet in which long fibers are stacked and needle-processed, a long fiber arranged in a snake shape and formed into a sheet with a binder, and a length of 5 to 50 mm. There are various papermaking sheets, such as papermaking sheets produced by the wet papermaking method, and any of them can be used.
【０００８】本願発明に用いられる熱可塑性樹脂はポリ
エチレン、ポリプロピレン、ポリスチレン、ポリ塩化ビ
ニル、ＡＢＳ樹脂、ポリアクリロニトリル、ポリアミ
ド、ポリカーボネート、ポリエチレンテレフタレート等
の一般的熱可塑性樹脂及びこれらの混合物、ポリマーア
ロイ等が用いられる。これらの熱可塑性樹脂には熱安定
剤、紫外線防止剤などの添加剤、また着色剤などを含ん
でいてもよい。実質的に繊維を含まず、表面が平滑で外
観のよい、繊維強化熱可塑性樹脂シートと溶着性のよい
熱可塑性樹脂を選べばよく、繊維強化熱可塑性樹脂シー
トのマトリックス樹脂と同類のものを用いるとよい。The thermoplastic resins used in the present invention include general thermoplastic resins such as polyethylene, polypropylene, polystyrene, polyvinyl chloride, ABS resin, polyacrylonitrile, polyamide, polycarbonate, polyethylene terephthalate, and mixtures thereof, and polymer alloys. Used. These thermoplastic resins may contain additives such as a heat stabilizer and an ultraviolet ray inhibitor, and a coloring agent. Substantially no fibers, the surface is smooth and the appearance is good, and a thermoplastic resin with good adhesion to the fiber-reinforced thermoplastic resin sheet may be selected, and the same resin as the matrix resin of the fiber-reinforced thermoplastic resin sheet is used. Good.
【０００９】以下に図で説明する。図１は金型の断面図
である。（１）は上金型で上下に駆動するプレス機の上
プラテンに取付けられている。（２）は上金型面、
（３）は樹脂通路、（５）は樹脂通路端でここに樹脂供
給装置が接続されている。（７）は下金型面で、下金型
面上に予熱した繊維強化熱可塑性樹脂シート（８）と多
孔性繊維質シート（９）を重ねて載置する。The following is a description with reference to the drawings. FIG. 1 is a sectional view of a mold. (1) is mounted on an upper platen of a press machine driven up and down by an upper mold. (2) is the upper mold surface,
(3) is a resin passage, and (5) is a resin passage end to which a resin supply device is connected. (7) is a lower mold surface on which a preheated fiber-reinforced thermoplastic resin sheet (8) and a porous fibrous sheet (9) are placed on top of each other.
【００１０】次に図２に示すように、型閉めを行なって
樹脂通路（３）を介して樹脂供給口（４）から溶融した
熱可塑性樹脂を供給する。このとき、光沢ムラ、小皺、
流れ模様などがない外観の良好な表面層を得るために、
型閉め速度は３０ｍｍ／ｓｅｃ以下とし、上下金型間の
クリアランスが予熱した繊維強化熱可塑性樹脂シートの
厚みプラス５０ｍｍ以下で予熱した繊維強化熱可塑性樹
脂シートの厚みよりも大きいときに熱可塑性樹脂の供給
を行なうことが望ましく、金型温度は５０℃以上が望ま
しい。Next, as shown in FIG. 2, the mold is closed and a molten thermoplastic resin is supplied from a resin supply port (4) through a resin passage (3). At this time, uneven gloss, fine wrinkles,
In order to obtain a good surface layer with no flowing pattern,
The mold closing speed is 30 mm / sec or less, and when the clearance between the upper and lower molds is greater than the thickness of the preheated fiber reinforced thermoplastic resin sheet by adding the thickness of the preheated fiber reinforced thermoplastic resin sheet to the thickness of the preheated fiber reinforced thermoplastic resin sheet is 50 mm or less. It is desirable to perform the supply and the mold temperature is desirably 50 ° C. or higher.
【００１１】次に図３に示すように、型締めを行なって
冷却して成形を行なう。繊維強化熱可塑性樹脂シートは
芯材層になり、熱可塑性樹脂層は表面層になる。Next, as shown in FIG. 3, the mold is clamped, cooled and molded. The fiber reinforced thermoplastic resin sheet becomes the core material layer, and the thermoplastic resin layer becomes the surface layer.
【００１２】本成形では、溶融した熱可塑性樹脂は多孔
性繊維質シート上を流動するので、予熱した繊維強化熱
可塑性樹脂シート層は溶融した熱可塑性樹脂の流動によ
り乱されることがなく多孔性繊維質シートにより保護さ
れる。また、多孔性繊維質シートの隙間を介して、繊維
強化熱可塑性樹脂シートのマトリックス樹脂と供給され
た溶融状態の熱可塑性樹脂が溶着して、強固な繊維強化
熱可塑性樹脂成形品ができる。また、成形品の外観はよ
く、表面は平滑である。特に、平均長さが５ｍｍ以上、
５０ｍｍ以下の繊維から湿式抄紙法で製造した多孔性繊
維質シートは表面が平滑で、適度な多孔性があるため、
これを用いると繊維強化熱可塑性樹脂シートがよく保護
され、得られる成形品の表面状態も良好であり、繊維強
化熱可塑性樹脂シート層と熱可塑性樹脂層の溶着性も優
れる。In the present molding, since the molten thermoplastic resin flows on the porous fibrous sheet, the preheated fiber-reinforced thermoplastic resin sheet layer is not disturbed by the flow of the molten thermoplastic resin and has a porous structure. Protected by fibrous sheet. Further, the matrix resin of the fiber-reinforced thermoplastic resin sheet and the supplied molten thermoplastic resin are welded to each other through the gaps in the porous fibrous sheet, whereby a strong fiber-reinforced thermoplastic resin molded product can be obtained. The appearance of the molded article is good and the surface is smooth. In particular, the average length is 5 mm or more,
Since the porous fibrous sheet produced by a wet papermaking method from fibers of 50 mm or less has a smooth surface and moderate porosity,
When this is used, the fiber reinforced thermoplastic resin sheet is well protected, the surface condition of the obtained molded article is good, and the weldability between the fiber reinforced thermoplastic resin sheet layer and the thermoplastic resin layer is also excellent.
【００１３】実施例１ 繊維強化熱可塑性樹脂シートとしては、マトリックス樹
脂がポリプロピレン６０ｗｔ％、平均長さ１３ｍｍ、平
均径９μｍのガラス繊維４０ｗｔ％のもので、湿式抄紙
法で製造した厚さ２．０ｍｍのものを用いた。多孔性繊
維質シートとしては、平均長さ１３ｍｍ、平均径が９μ
ｍのガラス繊維を湿式抄紙法により製造した目付け７５
ｇ／ｍ2 のものを用いた。繊維強化熱可塑性樹脂シート
をオーブンで２１０℃に予熱し、繊維強化熱可塑性樹脂
シートと多孔性繊維質シートを重ねて下金型上におき、
上金型内に設けた樹脂通路より２１０℃の住友ノーブレ
ンＡＸ５６８（住友化学工業株式会社製ポリプロピレ
ン、メルトフローレート６５ｇ／１０分）を、型閉め速
度７ｍｍ／ｓｅｃ、上下金型間クリアランスが１５〜１
０ｍｍの時に供給した。その後、型締め冷却して成形を
行なった。上下金型温度はそれぞれ７５℃、６５℃、成
形圧力は６０ｋｇ／ｃｍ2 、冷却時間は３０ｓｅｃで行
なった。得られた繊維強化熱可塑性樹脂成形品は、厚み
３．０ｍｍの外観の良好なものであった。Example 1 A fiber-reinforced thermoplastic resin sheet is a matrix resin having a polypropylene of 60 wt%, an average length of 13 mm, and an average diameter of 9 μm glass fiber of 40 wt%, and a thickness of 2.0 mm manufactured by a wet papermaking method. Was used. The porous fibrous sheet has an average length of 13 mm and an average diameter of 9 μm.
m of glass fiber manufactured by wet papermaking method
g / m 2 . The fiber reinforced thermoplastic resin sheet is preheated to 210 ° C. in an oven, and the fiber reinforced thermoplastic resin sheet and the porous fibrous sheet are stacked and placed on a lower mold,
Sumitomo Noblen AX568 (manufactured by Sumitomo Chemical Co., Ltd., melt flow rate 65 g / 10 minutes) at 210 ° C. from a resin passage provided in the upper mold, a mold closing speed of 7 mm / sec, and a clearance between upper and lower molds of 15 to 1
It was supplied at the time of 0 mm. Thereafter, the mold was cooled and molded. The upper and lower mold temperatures were 75 ° C. and 65 ° C., respectively, the molding pressure was 60 kg / cm 2 , and the cooling time was 30 seconds. The obtained fiber-reinforced thermoplastic resin molded article had a good appearance with a thickness of 3.0 mm.
【００１４】実施例２ 繊維強化熱可塑性樹脂シートとして、長ガラス繊維マッ
ト状物に溶融ポリプロピレンを押出しラミネートし、熱
ロール間を通して含浸させたガラス繊維４０ｗｔ％、厚
み３．０ｍｍのものを用いた以外は実施例１と同様にし
て成形を行なった。得られた繊維強化熱可塑性樹脂成形
品は、厚み３．７ｍｍの外観の良好なものであった。Example 2 A fiber-reinforced thermoplastic resin sheet was prepared by extruding and laminating molten polypropylene on a long glass fiber mat-like material and impregnating glass fiber by weight between 40 wt% and 3.0 mm through a hot roll. Was molded in the same manner as in Example 1. The obtained fiber-reinforced thermoplastic resin molded article had a good appearance of 3.7 mm in thickness.
【００１５】比較例１ 多孔性繊維質シートを用いなかった以外は実施例１と同
様に成形を行なった。樹脂供給口から供給された溶融樹
脂の流動により、この付近の繊維強化熱可塑性樹脂シー
トが樹脂供給口の外側に向かって一部押し流されて、得
られた成形品の表面にはリング上のマークが発生した。
また、樹脂供給口付近ではガラス繊維成分が少なく、樹
脂供給口から遠い部分でガラス繊維成分が多くなり、物
性的にも不均一なものであった。Comparative Example 1 Molding was performed in the same manner as in Example 1 except that the porous fibrous sheet was not used. Due to the flow of the molten resin supplied from the resin supply port, the fiber-reinforced thermoplastic resin sheet in the vicinity thereof is partially flushed toward the outside of the resin supply port, and a mark on a ring is formed on the surface of the obtained molded product. There has occurred.
In addition, the glass fiber component was small near the resin supply port, and increased in the portion far from the resin supply port, and the physical properties were uneven.
【００１６】実施例３ 多孔性繊維質シートとして平均長さ２５ｍｍ、平均径１
３μｍのガラス繊維から湿式抄紙法で製造した重量８０
ｇ／ｍ2 のものを用いた以外は実施例１と同様にして成
形を行なった。得られた繊維強化熱可塑性樹脂成形品
は、外観の良好なものであった。Example 3 A porous fibrous sheet having an average length of 25 mm and an average diameter of 1
Weight 80 manufactured by wet papermaking method from 3 μm glass fiber
The molding was carried out in the same manner as in Example 1 except that g / m 2 was used. The obtained fiber-reinforced thermoplastic resin molded product had a good appearance.
【００１７】実施例４ 多孔性繊維質シートとして平均長さ１３ｍｍ、平均径９
μｍのガラス繊維から湿式抄紙法で製造した重量１２０
ｇ／ｍ2 のものを用いた以外は実施例１と同様にして成
形を行なった。得られた繊維強化熱可塑性樹脂成形品
は、外観の良好なものであった。Example 4 As a porous fibrous sheet, the average length was 13 mm and the average diameter was 9
Weight 120 manufactured by wet papermaking method from glass fiber of μm
The molding was carried out in the same manner as in Example 1 except that g / m 2 was used. The obtained fiber-reinforced thermoplastic resin molded product had a good appearance.
【００１８】[0018]
【発明の効果】本発明により、表面が平滑で外観のよい
繊維強化熱可塑性樹脂成形品が得られる。また、溶融樹
脂供給時、繊維強化熱可塑性樹脂シート層は多孔性繊維
質シートで保護されるため乱されず、また多孔性繊維質
シートを介して芯材層と表面層が溶着するので、強固な
繊維強化熱可塑性樹脂成形品が得られる。According to the present invention, a fiber-reinforced thermoplastic resin molded article having a smooth surface and good appearance can be obtained. In addition, when the molten resin is supplied, the fiber reinforced thermoplastic resin sheet layer is protected by the porous fibrous sheet and is not disturbed, and the core material layer and the surface layer are welded through the porous fibrous sheet. A fiber-reinforced thermoplastic resin molded product can be obtained.
【００１９】[0019]
【図１】成形工程を示す縦の金型断面図である。FIG. 1 is a vertical mold sectional view showing a molding step.
【図２】成形工程を示す縦の金型断面図である。FIG. 2 is a vertical mold sectional view showing a molding step.
【図３】成形工程を示す縦の金型断面図である。FIG. 3 is a vertical mold sectional view showing a molding step.
【図４】得られた繊維強化熱可塑性樹脂成形品の斜視図
である。FIG. 4 is a perspective view of the obtained fiber-reinforced thermoplastic resin molded product.
（１）上金型 （２）上金型面 （３）樹脂通路 （４）樹脂供給口 （５）樹脂通路端 （６）下金型 （７）下金型面 （８）繊維強化熱可
塑性樹脂シート （９）多孔性繊維質シート （１０）熱可塑性樹
脂 （１１）芯材層 （１２）表面層(1) Upper mold (2) Upper mold surface (3) Resin passage (4) Resin supply port (5) Resin passage end (6) Lower mold (7) Lower mold surface (8) Fiber reinforced thermoplastic Resin sheet (9) Porous fibrous sheet (10) Thermoplastic resin (11) Core layer (12) Surface layer
フロントページの続き (72)発明者 北山 威夫 大阪府高槻市塚原２丁目10番１号 住友 化学工業株式会社内 (72)発明者 松原 重義 大阪府高槻市塚原２丁目10番１号 住友 化学工業株式会社内 (56)参考文献 特開 昭61−148011（ＪＰ，Ａ) 特開 昭63−269750（ＪＰ，Ａ) 特開 昭57−138933（ＪＰ，Ａ) 特開 平２−130115（ＪＰ，Ａ) 特開 平１−200950（ＪＰ，Ａ) 特開 昭63−101436（ＪＰ，Ａ) 特開 昭60−212313（ＪＰ，Ａ) 特開 昭57−189832（ＪＰ，Ａ) 特開 平２−175217（ＪＰ，Ａ) 特開 平２−198815（ＪＰ，Ａ) 特開 平３−76614（ＪＰ，Ａ) 特開 平３−130118（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B29C 45/00 - 45/24 B29C 39/10 Continued on the front page (72) Inventor Takeo Kitayama 2- 10-1 Tsukahara, Takatsuki-shi, Osaka Sumitomo Chemical Industries, Ltd. (72) Inventor Shigeyoshi Matsubara 2- 10-1 Tsukahara, Takatsuki-shi, Osaka Sumitomo Chemical Co., Ltd. In-company (56) References JP-A-61-148011 (JP, A) JP-A-63-269750 (JP, A) JP-A-57-138933 (JP, A) JP-A-2-130115 (JP, A) JP-A-1-200950 (JP, A) JP-A-63-101436 (JP, A) JP-A-60-212313 (JP, A) JP-A-57-189832 (JP, A) 175217 (JP, A) JP-A-2-198815 (JP, A) JP-A-3-76614 (JP, A) JP-A-3-130118 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) B29C 45/00-45/24 B29C 39/10
Claims (3)
熱可塑性樹脂シートと多孔性繊維質シートを重ねて載置
し、該多孔性繊維質シート側の金型内に設けた樹脂通路
より溶融状態の熱可塑性樹脂を供給し、加圧冷却するこ
とを特徴とする繊維強化熱可塑性樹脂成形品の成形方
法。1. A preheated fiber-reinforced thermoplastic resin sheet and a porous fibrous sheet are stacked and mounted on a lower mold of a pair of molds, and provided in a mold on the porous fibrous sheet side. A method for forming a fiber-reinforced thermoplastic resin molded product, comprising supplying a molten thermoplastic resin from a resin passage and cooling it under pressure.
維から湿式抄紙法により製造された多孔性繊維質シート
を用いることを特徴とする請求項１記載の繊維強化熱可
塑性樹脂成形品の成形方法。2. A fiber-reinforced thermoplastic resin molded article according to claim 1, wherein a porous fibrous sheet produced from fibers having an average length of 5 mm or more and 50 mm or less by a wet papermaking method is used. Method.
られる繊維強化熱可塑性樹脂成形品。3. A fiber-reinforced thermoplastic resin molded article obtained by the molding method according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3239550A JP3019527B2 (en) | 1991-09-19 | 1991-09-19 | Fiber-reinforced thermoplastic resin molded article and molding method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3239550A JP3019527B2 (en) | 1991-09-19 | 1991-09-19 | Fiber-reinforced thermoplastic resin molded article and molding method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0577273A JPH0577273A (en) | 1993-03-30 |
| JP3019527B2 true JP3019527B2 (en) | 2000-03-13 |
Family
ID=17046478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3239550A Expired - Fee Related JP3019527B2 (en) | 1991-09-19 | 1991-09-19 | Fiber-reinforced thermoplastic resin molded article and molding method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3019527B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11697274B2 (en) | 2018-03-30 | 2023-07-11 | Toray Industries, Inc. | Molded article and production method therefor |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002287768A (en) * | 2001-03-28 | 2002-10-04 | Nichias Corp | Molded acoustic material and method of manufacturing the same |
| JP2005343081A (en) * | 2004-06-04 | 2005-12-15 | Calsonic Kansei Corp | Method for producing interior finish material |
| TWI520844B (en) * | 2012-10-30 | 2016-02-11 | 三菱麗陽股份有限公司 | Method for fabricating preform and fiber-reinforced resin molded article |
| FR3011500B1 (en) * | 2013-10-03 | 2016-08-12 | Valeo Systemes Thermiques | HOT COMPRESSION METHOD AND OVERMOLDING COMPOSITE INSERT AND HOT COMPRESSION MOLD AND OVERMOLDING THEREOF |
| JP7020988B2 (en) * | 2018-04-17 | 2022-02-16 | 旭化成株式会社 | Manufacturing method of molded products |
-
1991
- 1991-09-19 JP JP3239550A patent/JP3019527B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11697274B2 (en) | 2018-03-30 | 2023-07-11 | Toray Industries, Inc. | Molded article and production method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0577273A (en) | 1993-03-30 |
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