JP4380623B2 - 筒状成形体 - Google Patents
筒状成形体 Download PDFInfo
- Publication number
- JP4380623B2 JP4380623B2 JP2005320385A JP2005320385A JP4380623B2 JP 4380623 B2 JP4380623 B2 JP 4380623B2 JP 2005320385 A JP2005320385 A JP 2005320385A JP 2005320385 A JP2005320385 A JP 2005320385A JP 4380623 B2 JP4380623 B2 JP 4380623B2
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- JP
- Japan
- Prior art keywords
- resin layer
- cylindrical
- molded body
- foamed resin
- bent
- 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.)
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- Rigid Pipes And Flexible Pipes (AREA)
- Laminated Bodies (AREA)
Description
Pa 上記筒状成形体の変形例
1 円筒体
1a 帯状金属板
11a 折り曲げ片
11b 折り曲げ片
2a 内面発泡樹脂層
2b 外面発泡樹脂層
3 硬質樹脂層
4 変形例における円筒体
R 回転ロール
B 賦形ロール
C 成形ロール
D 発泡樹脂押出し機
E 硬質合成樹脂押出し機
F 冷却サイジングダイ
G 切断機
Claims (4)
- 帯状金属板を曲成して筒状体とし、該筒状体の対向する端部を隙間を介して内方に折り曲げ、折り曲げ片を形成し、上記隙間と対向する折り曲げ片とを含む筒状体の内面を発泡樹脂層で被覆するとともに、外面を硬質樹脂層で被覆し、上記折り曲げ片を繋ぎ合わせてなる筒状成形体。
- 上記筒状体の外面を発泡樹脂層で被覆し、さらに該発泡樹脂層の外周面を上記硬質樹脂層で被覆してなる請求項1に記載の筒状成形体。
- 上記発泡樹脂層が軟質塩化ビニル樹脂と発泡剤と発泡成形助剤とを含有する発泡性樹脂組成物を発泡させて形成され、上記硬質合成樹脂層がアクリル樹脂からなる請求項1又は2に記載の筒状成形体。
- 上記帯状金属板の表面に凹凸が設けられた請求項1乃至3のいずれかに記載の筒状成形体。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005320385A JP4380623B2 (ja) | 2005-11-04 | 2005-11-04 | 筒状成形体 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005320385A JP4380623B2 (ja) | 2005-11-04 | 2005-11-04 | 筒状成形体 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007125787A JP2007125787A (ja) | 2007-05-24 |
JP4380623B2 true JP4380623B2 (ja) | 2009-12-09 |
Family
ID=38148855
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005320385A Active JP4380623B2 (ja) | 2005-11-04 | 2005-11-04 | 筒状成形体 |
Country Status (1)
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JP (1) | JP4380623B2 (ja) |
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2005
- 2005-11-04 JP JP2005320385A patent/JP4380623B2/ja active Active
Also Published As
Publication number | Publication date |
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JP2007125787A (ja) | 2007-05-24 |
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