JP3396401B2 - Composite molded products - Google Patents
Composite molded productsInfo
- Publication number
- JP3396401B2 JP3396401B2 JP18238497A JP18238497A JP3396401B2 JP 3396401 B2 JP3396401 B2 JP 3396401B2 JP 18238497 A JP18238497 A JP 18238497A JP 18238497 A JP18238497 A JP 18238497A JP 3396401 B2 JP3396401 B2 JP 3396401B2
- Authority
- JP
- Japan
- Prior art keywords
- core material
- thermoplastic resin
- fibers
- composite sheet
- shaping
- 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 - Lifetime
Links
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、補強芯材を熱可塑
性樹脂で被覆した、低伸縮性と難燃性に優れた複合成形
品に関する。
【０００２】
【従来の技術】熱可塑性樹脂、例えば塩化ビニル樹脂
は、汎用プラスチックの中で耐水性、難燃性に優れ、機
械的性質も良好であり、しかも価格も比較的安価である
ことから、建築部材の材料として広く採用されている。
例えば雨樋は、従来、硬質の塩化ビニルを用いた押出成
形により成形されるのが一般的である。
【０００３】ところで、雨樋は難燃性ではあるものの、
耐熱温度が６０〜７０℃であり、また、線膨張係数が
７．０×１０-3( １／℃）と大きいため、このような塩
化ビニル樹脂を雨樋の材料として用いた場合、雨樋は軒
先に取り付けられる関係上、直射日光などの熱により変
形しやすく、また、熱伸縮によるひび割れやそりが発生
して雨樋としての機能を果たさなくなる恐れがあるな
ど、長期にわたる使用に際しての信頼性に乏しいという
問題がある。
【０００４】このような問題を解決する一般的な対策と
して、熱可塑性樹脂と一方向または複数方向に配向した
長繊維よりなる複合シートを賦形し、その表面に熱可塑
性樹脂を押出被覆することが行われる。
【０００５】
【発明が解決しようとする課題】ところで、以上のよう
な長繊維と熱可塑性樹脂とからなる複合シートを、雨樋
等の異形断面形状でしかもその断面が一様な長尺物に賦
形するに当たり、図４（Ａ）に模式的に示すように、複
合シートの長繊維を賦形部に対して平行に配向させた場
合には繊維間で裂けが生じ、また、図４（Ｂ）に模式的
に示すように、それ以外の方に配向させた場合には、賦
形部で繊維が折れ、複合成形品の強度を発揮させること
ができないという問題があった。
【０００６】本発明はこのような実情に鑑みてなされた
もので、耐熱性に優れ、しかも賦形に際して裂け等の発
生がなく、しかも強度的にも優れた構造を持ち、特に雨
樋等に適した複合成形品の提供を目的としている。
【０００７】
【課題を解決するための手段】上記の目的を達成するた
め、本発明の複合成形品は、熱可塑性樹脂と強化繊維と
からなる複合シートが所要断面形状に賦形され、かつ、
その表面に熱可塑性樹脂が押出被覆されているととも
に、上記複合シートには、その賦形部分のみに強化短繊
維がランダム配向していることによって特徴づけられ
る。
【０００８】本発明において、熱可塑性樹脂により被覆
されて芯材となる複合シートに、その賦形部分のみに含
有させるべき短繊維は、カーボン繊維、金属繊維、ガラ
ス繊維等の無機繊維や、ケプラー，綿繊維等を挙げるこ
とができる。
【０００９】その短繊維の繊維長、径は、芯材の必要性
能により適宜選択されるが、特に、繊維長としては１０
０μｍ、繊維径としては５〜５０μｍで用いられる場合
が多い。
【００１０】また、本発明で用いられる複合シートは、
その賦形部分以外における強化繊維の形態ないしは配向
状態は特に限定されず、長繊維を一定方向に配向させて
もよ い。
【００１１】芯材となる複合シートを構成する熱可塑性
樹脂としては、その表面を被覆する熱可塑性樹脂との融
着性、成形性により適宜に選択されるが、一般には塩化
ビニル樹脂、アクリル樹脂、ＰＥＴ（ポリエチレンテレ
フタレート）、ＰＰ（ポリプロピレン）、ＰＥ（ポリエ
チレン）、ナイロン等が用いられる。
【００１２】また、芯材となる複合シートの成形に際し
ては、粉体含浸、液状含浸のほか、熱可塑性樹脂を短繊
維状にし、これを強化短繊維とエアー攪拌等により混合
した状態で、加熱・加圧によりシート状に成形する等の
方法を採用することができる。
【００１３】また、賦形後の複合シートの表面を覆う熱
可塑性樹脂としては、塩化ビニル樹脂、アクリル樹脂、
およびそれらの共重合体、ナイロン樹脂などの耐候性の
良好な樹脂を用いることが望ましい。
【００１４】以上の構成からなる本発明の複合成形品に
よれば、複合シートはその賦形部分のみにおいて短繊維
がランダム配向されているが故に、賦形に際して裂けが
生じたり、あるいは繊維が賦形部分で折れて強度を発揮
し得ないといった不具合が生じない。従って、成形安定
性に優れ、高強度で低伸縮性並びに耐熱性に優れた複合
成形品となる。
【００１５】
【実施例】以下、本発明の実施例を比較例とともに述べ
る。
（実施例１）
図１に本発明実施例の複合成形品の一部切欠き断面図を
示す。
【００１６】断面略コ字形に賦形した芯材１の表面を、
熱可塑性樹脂からなる表皮層２により押出被覆してい
る。芯材１は、短繊維１ａと長繊維１ｂ並びに熱可塑性
樹脂１ｃとからなり、短繊維１ａはランダム配向してお
り、芯材１のコーナー部分、つまり後述する芯材の成形
工程における賦形部分の近傍にのみ配した。また、長繊
維１ｂは成形品の長手方向に配向させて、短繊維１ａを
配した部分以外に配した。
【００１７】芯材１を構成する短繊維１ａおよび長繊維
１ｂの材質はそれぞれカーボン繊維とし、熱可塑性樹脂
１ｃはＰＥＴ（ポリエチレンテレフタレート）とした。
また、表皮層２の熱可塑性樹脂は塩化ビニル樹脂とし
た。
【００１８】以上の本発明実施例は、例えば図２に示す
芯材成形装置と、図３に示す芯材賦形押出被覆装置を用
いて製造することができる。芯材成形装置は、ランダム
に配向した強化短繊維と、互いに平行な強化長繊維に、
短繊維状あるいは粉状の熱可塑性樹脂を混合してなるマ
ットＭを繰り出すための繰り出し機１１、その繰り出し
機１１から繰り出されたマットＭを加熱して、マットＭ
内の熱可塑性樹脂を溶融させるための加熱炉１２、その
加熱炉１２を経たマットＭ内を加熱加圧する加熱プレス
ロール１３と、その加熱ロールプレス１３に隣接配置さ
れた冷却プレスロール１４、およびその冷却プレスロー
ル１４を経て得られる複合シートＳを巻き取る巻き取り
機１５を主たる構成要素としている。
【００１９】以上の芯材成形装置を用い、また、マット
Ｍとして、上記したように成形品のコーナー部分に相当
する位置にランダム配向したカーボン短繊維１ａを、他
の部分に相当する位置には一方向に配向したカーボン長
繊維１ｂを配置して、複合シートＳを製造した。
【００２０】芯材賦形押出被覆装置は、上記した芯材賦
形装置により得られた複合シートＳを巻回したロールか
ら、シートＳを繰り出す繰り出し機２１、その繰り出し
機２１から繰り出された複合シートＳを所要の断面形状
に賦形する賦形装置２２、賦形後のシートＳの表裏両面
に熱可塑性樹脂を押出す押出被覆金型２３、その押出被
覆金型２３を経た積層体を冷却してサイジングするため
の冷却サイジング装置２４、および、その冷却サイジン
グ装置２４を経て得られる製品Ｗを引き取る引取機２５
を主たる構成要素としている。
【００２１】ここで、芯材賦形装置２２は、例えばロー
ルやブロック状のシューにより、シートＳを徐々に所要
断面形状に賦形していく装置であり、必要に応じてシー
トＳを局部的に加熱したり、全体に加熱しながら賦形し
てもよい。
【００２２】また、押出被覆金型２３は、クロスヘッド
ダイによって、芯材である複合シートＳの表裏両面に連
続的に溶融状態の熱可塑性樹脂Ｐを押出し、シートＳの
表面を熱可塑性樹脂Ｐで被覆するようになっており、芯
材成形装置２２により複合シートＳを断面略コ字形に賦
形した芯材１の表面に、表皮層２として塩化ビニル樹脂
を押出被覆して、図１に示した複合成形品を得た。
【００２３】（比較例１）
芯材１に配する強化繊維を、成形品の長手方向（賦形部
に平行）に配向したカーボン長繊維１ｂのみとした以外
は、実施例１と同じとした。
【００２４】（比較例２）
芯材１に配する強化繊維を、成形品の長手方向に直交す
る方向（賦形部に直交する方向）に配向したカーボン長
繊維１ｂのみとした以外は、実施例１と同じとした。
【００２５】以上の各実施例並びに比較例について、複
合シートＳの賦形時の安定性を評価した結果を［表１］
に示す。
【００２６】
【表１】
【００２７】この［表１］から明らかなように、本発明
の実施例では、複合シートの賦形時に裂けや割れが生じ
なかったのに対し、各比較例では複合シートの裂けまた
は割れが発生し、本発明実施例の成形安定性を確認する
ことができた。
【００２８】
【発明の効果】以上のように、本発明によれば、強化繊
維と熱可塑性樹脂からなる複合シートの賦形部分のみ
に、ランダムに配向した短繊維を配しているため、賦形
部分での裂けや割れが発生することがなく、賦形時の成
形安定性が優れると同時に、製品としての強度等の品質
においても優れたものとなる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite molded article having a low elasticity and excellent flame retardancy, in which a reinforcing core material is coated with a thermoplastic resin. 2. Description of the Related Art Thermoplastic resins, for example, vinyl chloride resins are among general-purpose plastics because they have excellent water resistance, flame retardancy, good mechanical properties, and are relatively inexpensive. Widely used as a material for building components.
For example, rain gutters are conventionally generally formed by extrusion using hard vinyl chloride. [0003] Although rain gutters are flame-retardant,
Since the heat resistance temperature is 60 to 70 ° C. and the coefficient of linear expansion is as large as 7.0 × 10 −3 (1 / ° C.), when such a vinyl chloride resin is used as a material for the rain gutter, Because it is attached to the eaves, it is easily deformed by heat such as direct sunlight, and it may not function as a rain gutter due to cracks and warpage due to thermal expansion and contraction, so reliability for long-term use There is a problem that is poor. [0004] As a general measure to solve such a problem, a composite sheet comprising a thermoplastic resin and long fibers oriented in one direction or a plurality of directions is formed, and the surface thereof is extrusion-coated with the thermoplastic resin. Is performed. [0005] By the way, the composite sheet made of the long fibers and the thermoplastic resin as described above is converted into a long object having an irregular cross-sectional shape such as a rain gutter and a uniform cross-section. In shaping, when the long fibers of the composite sheet are oriented parallel to the shaping portion as shown schematically in FIG. 4 (A), tears occur between the fibers, and FIG. As schematically shown in B), when the fiber is oriented in the other direction, the fiber is broken at the shaping portion, and there is a problem that the strength of the composite molded product cannot be exhibited. The present invention has been made in view of such circumstances, and has a structure which is excellent in heat resistance, has no breakage during forming, and has excellent strength, and is particularly suitable for rain gutters and the like. The purpose is to provide suitable composite molded products. [0007] In order to achieve the above object, the composite molded article of the present invention comprises a composite sheet comprising a thermoplastic resin and a reinforcing fiber formed into a required cross-sectional shape, and
The surface thereof is extrusion-coated with a thermoplastic resin, and the composite sheet is characterized in that short reinforcing fibers are randomly oriented only in the imprinted portion . In the present invention, the short fibers to be included only in the imprinted portion of the composite sheet which is coated with a thermoplastic resin and serves as a core material include carbon fibers, metal fibers, glass fibers and the like. Examples thereof include inorganic fibers, Kepler, and cotton fibers. [0009] The fiber length and diameter of the short fibers are appropriately selected according to the required performance of the core material.
0 μm and a fiber diameter of 5 to 50 μm are often used. The composite sheet used in the present invention is:
Form or orientation of reinforcing fibers in addition the shaping portion is not particularly limited, by orienting the long fibers in a predetermined direction
Also not good. The thermoplastic resin constituting the composite sheet serving as the core material is appropriately selected depending on the fusing property and the moldability with the thermoplastic resin covering the surface thereof, but is generally selected from a vinyl chloride resin and an acrylic resin. , PET (polyethylene terephthalate), PP (polypropylene), PE (polyethylene), nylon and the like. When forming the composite sheet serving as a core material, in addition to powder impregnation and liquid impregnation, a thermoplastic resin is formed into short fibers, which are mixed with reinforcing short fibers by air stirring or the like. -A method such as molding into a sheet by pressing can be adopted. As the thermoplastic resin covering the surface of the composite sheet after shaping, vinyl chloride resin, acrylic resin,
It is desirable to use a resin having good weather resistance such as a copolymer thereof, a nylon resin and the like. According to the composite molded article of the present invention having the above configuration, because although the composite sheet is Oite short fibers only in its shaping section are randomly oriented, or caused tearing during shaping is, or fibers Does not break at the shaping portion and cannot exhibit strength. Therefore, a composite molded article having excellent molding stability, high strength, low elasticity and excellent heat resistance can be obtained. EXAMPLES Examples of the present invention will be described below along with comparative examples. (Embodiment 1) FIG. 1 shows a partially cutaway sectional view of a composite molded product of an embodiment of the present invention. The surface of the core material 1 having a substantially U-shaped cross section is
It is extrusion-coated with a skin layer 2 made of a thermoplastic resin. The core material 1 is composed of short fibers 1a, long fibers 1b, and a thermoplastic resin 1c, and the short fibers 1a are randomly oriented. Corner portions of the core material 1, that is, shaping portions in a core material forming step described later. Was arranged only in the vicinity of. In addition, the long fibers 1b were oriented in the longitudinal direction of the molded product, and were arranged in portions other than the portion where the short fibers 1a were arranged. The material of the short fiber 1a and the long fiber 1b constituting the core material 1 is carbon fiber, respectively, and the thermoplastic resin 1c is PET (polyethylene terephthalate).
The thermoplastic resin of the skin layer 2 was a vinyl chloride resin. The above embodiment of the present invention can be manufactured by using, for example, a core material forming apparatus shown in FIG. 2 and a core material forming extrusion coating apparatus shown in FIG. The core material forming device converts randomly oriented reinforced short fibers and reinforced long fibers parallel to each other,
An unwinding machine 11 for unwinding a mat M formed by mixing short fibrous or powdery thermoplastic resin, and heating the mat M unwound from the unwinding machine 11 to produce a mat M
A heating furnace 12 for melting the thermoplastic resin in the inside, a heating press roll 13 for heating and pressurizing the inside of the mat M passing through the heating furnace 12, a cooling press roll 14 disposed adjacent to the heating roll press 13, and And a winding machine 15 for winding the composite sheet S obtained through the cooling press roll 14 as a main component. Using the above-mentioned core material forming apparatus, the carbon fiber 1a randomly oriented at the position corresponding to the corner portion of the molded product as described above is used as the mat M, and the mat M is placed at the position corresponding to the other portion. The composite sheet S was manufactured by arranging the carbon long fibers 1b oriented in one direction. The core material extruding and coating apparatus is a feeding machine 21 for feeding the sheet S from a roll around which the composite sheet S obtained by the above-mentioned core material shaping device is wound, and a composite material fed from the feeding machine 21. A shaping device 22 for shaping the sheet S into a required cross-sectional shape, an extrusion coating die 23 for extruding a thermoplastic resin on both the front and back surfaces of the formed sheet S, and cooling of the laminate passing through the extrusion coating die 23 Sizing device 24 for sizing the product, and a take-off device 25 for picking up a product W obtained through the cooling sizing device 24
Is the main component. Here, the core material shaping device 22 is a device for shaping the sheet S into a required sectional shape gradually by using, for example, a roll or a block-shaped shoe. Or heating while heating the whole. The extrusion coating mold 23 continuously extrudes the molten thermoplastic resin P on both the front and back surfaces of the composite sheet S as a core material by a crosshead die, and cleans the surface of the sheet S with the thermoplastic resin P. The surface of a core material 1 obtained by shaping the composite sheet S into a substantially U-shaped cross section by a core material forming device 22 is extruded with a vinyl chloride resin as a skin layer 2, and FIG. The indicated composite article was obtained. (Comparative Example 1) The same procedure as in Example 1 was carried out except that the reinforcing fibers disposed on the core material 1 were only carbon long fibers 1b oriented in the longitudinal direction of the molded product (parallel to the shaping portion). . (Comparative Example 2) Except that the reinforcing fibers disposed on the core material 1 were only carbon long fibers 1b oriented in the direction perpendicular to the longitudinal direction of the molded product (the direction perpendicular to the shaping portion). Same as Example 1. For each of the above Examples and Comparative Examples, the results of evaluating the stability of the composite sheet S during shaping are shown in Table 1 below.
Shown in [Table 1] As is clear from Table 1, in the examples of the present invention, no tearing or cracking occurred during the shaping of the composite sheet, whereas in each comparative example, tearing or cracking of the composite sheet occurred. However, the molding stability of the examples of the present invention could be confirmed. As described above, according to the present invention, only the shaped part of the composite sheet comprising the reinforcing fibers and the thermoplastic resin is used.
In addition, since randomly oriented short fibers are arranged, no tearing or cracking occurs in the shaped part, and the molding stability at the time of shaping is excellent, and at the same time, in quality such as strength as a product Will also be excellent.
【図面の簡単な説明】
【図１】本発明の実施例１の構造を示す一部切欠き断面
図
【図２】実施例１で用いた芯材成形装置の説明図
【図３】実施例１で用いた芯材賦形押出被覆装置の説明
図
【図４】芯材に一方向に配向した長繊維を用いる場合の
模式的説明図で、（Ａ）は賦形部に平行に配向させた場
合、（Ｂ）は賦形部に直交する方向に配向させた場合の
説明図
【符号の説明】
１ 芯材
１ａ 短繊維
１ｂ 長繊維
１ｃ 熱可塑性樹脂
２ 表皮層
１１ 繰り出し機
１２ 加熱炉
１３ 加熱ロールプレス
１４ 冷却ロールプレス
１５ 巻き取り機
２１ 繰り出し機
２２ 賦形装置
２３ 押出被覆金型
２４ 冷却サイジング装置
２５ 引取機
Ｓ 複合シート
Ｐ 熱可塑性樹脂BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partially cutaway sectional view showing the structure of a first embodiment of the present invention. FIG. 2 is an explanatory view of a core material forming apparatus used in the first embodiment. FIG. 4 is an explanatory view of a core material extruding and coating apparatus used in 1. FIG. 4 is a schematic explanatory view in the case of using a long fiber oriented in one direction as a core material. (B) is an explanatory view in the case of orienting in the direction orthogonal to the shaping portion. [Description of Signs] 1 Core material 1a Short fiber 1b Long fiber 1c Thermoplastic resin 2 Skin layer 11 Feeding machine 12 Heating furnace 13 Heating roll press 14 Cooling roll press 15 Winding machine 21 Unreeling machine 22 Shaping device 23 Extrusion coating die 24 Cooling sizing device 25 Takeoff machine S Composite sheet P Thermoplastic resin
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｂ２９Ｋ 105:12 Ｂ２９Ｋ 105:12 Ｂ２９Ｌ 9:00 Ｂ２９Ｌ 9:00 (58)調査した分野(Int.Cl.7，ＤＢ名) B29C 47/00 - 47/96 E04D 13/064 ────────────────────────────────────────────────── ─── Continued on the front page (51) Int.Cl. 7 identification code FI B29K 105: 12 B29K 105: 12 B29L 9:00 B29L 9:00 (58) Investigated field (Int.Cl. 7 , DB name) B29C 47/00-47/96 E04D 13/064
Claims (1)
シートが所要断面形状に賦形され、かつ、その表面に熱
可塑性樹脂が押出被覆されているとともに、上記複合シ
ートは、その賦形部分のみに強化短繊維がランダム配向
していることを特徴とする複合成形品。(57) [Claims 1] A composite sheet comprising a thermoplastic resin and reinforcing fibers is formed into a required cross-sectional shape, and the surface thereof is extrusion-coated with the thermoplastic resin. The composite sheet is characterized in that the reinforcing short fibers are randomly oriented only in the shaped part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18238497A JP3396401B2 (en) | 1997-07-08 | 1997-07-08 | Composite molded products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18238497A JP3396401B2 (en) | 1997-07-08 | 1997-07-08 | Composite molded products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1119998A JPH1119998A (en) | 1999-01-26 |
| JP3396401B2 true JP3396401B2 (en) | 2003-04-14 |
Family
ID=16117379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18238497A Expired - Lifetime JP3396401B2 (en) | 1997-07-08 | 1997-07-08 | Composite molded products |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3396401B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0599524A3 (en) * | 1992-11-24 | 1996-04-17 | Advanced Micro Devices Inc | Self test mechanism for embedded memory arrays. |
| US8617445B2 (en) | 2005-03-15 | 2013-12-31 | Sekisui Chemical Co., Ltd. | Process for producing oriented thermoplastic polyester resin sheet, and laminate-molded body |
| JP4960679B2 (en) * | 2006-09-28 | 2012-06-27 | 積水化学工業株式会社 | Laminated molded body |
| JP4908999B2 (en) * | 2006-09-28 | 2012-04-04 | 積水化学工業株式会社 | Laminated molded body |
| EP2530124B1 (en) * | 2010-01-29 | 2021-02-24 | Toray Industries, Inc. | Fiber-reinforced thermoplastic resin composition, reinforcing fiber bundle, and process for production of fiber-reinforced thermoplastic resin composition |
| JP5919076B2 (en) * | 2012-04-18 | 2016-05-18 | クオドラント・プラスチック・コンポジット・ジャパン 株式会社 | Method for molding fiber reinforced thermoplastic resin sheet and heating apparatus |
-
1997
- 1997-07-08 JP JP18238497A patent/JP3396401B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1119998A (en) | 1999-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3396401B2 (en) | Composite molded products | |
| JP3884524B2 (en) | Laminated molded product and manufacturing method thereof | |
| JPH0249222B2 (en) | ||
| JPH02217231A (en) | Fiber reinforced synthetic resin molded form and production thereof | |
| JP2702546B2 (en) | Long composite molded article and method for producing the same | |
| JP2874951B2 (en) | Eaves gutter manufacturing method | |
| JPH02220841A (en) | Composite formed body in continuous form and manufacture thereof | |
| JP2000290384A (en) | Composite molding, production thereof and production of fiber-reinforced thermoplastic sheet used therefor | |
| JP3456853B2 (en) | Composite | |
| JP2904608B2 (en) | Fiber composite rain gutter and method of manufacturing the same | |
| JPH0822566B2 (en) | Method for manufacturing long composite molded body | |
| JP3590526B2 (en) | Composite | |
| JPH07112701B2 (en) | Method for manufacturing long composite molded body | |
| JP3169493B2 (en) | Rain gutter made of fiber composite resin and manufacturing method thereof | |
| JP2531127Y2 (en) | Eaves gutter | |
| JPH0741659B2 (en) | Heat shrinkable sleeve and manufacturing method thereof | |
| EP0740028A1 (en) | Gutter of fiber-containing thermoplastic resin | |
| JP2904602B2 (en) | Fiber composite rain gutter and method of manufacturing the same | |
| JPH02276625A (en) | Composite formed body in continuous form and manufacture thereof | |
| JP2516496Y2 (en) | Eaves gutter | |
| JPH02184428A (en) | Long composite molded object | |
| JP3231100B2 (en) | Manufacturing method of laminated molded products | |
| JP2004346332A (en) | Method for producing fiber-reinforced thermoplastic sheet | |
| JPH07310408A (en) | Rain gutter and its manufacture | |
| JPH07158220A (en) | Compound rain gutter and its manufacture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080207 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090207 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100207 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100207 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110207 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120207 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130207 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140207 Year of fee payment: 11 |
|
| EXPY | Cancellation because of completion of term |