Title:
フッ素樹脂チューブ及びその製造方法
Document Type and Number:
Japanese Patent JP3819929
Kind Code:
B1
Abstract:
A fluororesin tube 30 of the present invention has a tensile strength of 80 N/mm 2 or more in both of the circumferential direction and the axial direction. The fluororesin tube 30 is produced by winding with two or more turn of a fluororesin film 20 having a thickness T of 2.5 µm or less (particularly 2.0 µm or less) to form a lamination. At least an outermost layer of the tube is fused to a layer immediately thereunder and a rising height H of the fluororesin film at the end-of-winding side 21 is always 0.1 µm or more and 2.0 µm or less when measured at any position of the side 21. A level difference D of the end-of-winding side 21 of the fluororesin tube is preferably more than or equal to sum of the film thickness T and 0.1 µm, and less than or equal to 3.0 µm (particularly 2.3 µm) when measured at any position of the side 21.
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Inventors:
Nobuo Oyama
Application Number:
JP2005144575A
Publication Date:
September 13, 2006
Filing Date:
May 17, 2005
Export Citation:
Assignee:
Japan Gore-Tex Co., Ltd.
International Classes:
G03G15/20; B29C53/58; B29K27/12; B29L23/00
Domestic Patent References:
| JP2005024931A | ||||
| JP2003066662A | ||||
| JP2003254324A | ||||
| JP7205274A | ||||
| JP9258583A | ||||
| JP6246829A | ||||
| JP34007236B1 | ||||
| JP2003066733A | ||||
| JP5010393A | ||||
| JP2000098772A |
Attorney, Agent or Firm:
Kyuichi Ueki
Tadashi Sugakawa
Osamu Futakuchi
Hiroaki Ito
Tadashi Sugakawa
Osamu Futakuchi
Hiroaki Ito