Title:
STRETCHED POLYTETRAFLUOROETHYLENE POROUS ARTICLE HAVING FINE PORES FORMED THEREIN AND METHOD FOR PRODUCTION THEREOF, AND METHOD OF ABLATION MACHINING
Document Type and Number:
WIPO Patent Application WO/2005/070611
Kind Code:
A1
Abstract:
A stretched polytetrafluoroethylene porous article having fine pores formed therein, wherein fine pores having a pore diameter greater than the average pore diameter of said stretched polytetrafluoroethylene porous article are formed by the irradiation with a pulse laser beam having a pulse width of 10 picoseconds or less, and a fine porous structure of the wall surface of said fine pore is not broken and is substantially retained; a method for producing the stretched polytetrafluoroethylene porous article; and a method of ablation machining.
Inventors:
MASUDA YASUHITO (JP)
OKUDA YASUHIRO (JP)
MISHIMA HIDEHIKO (JP)
OKUDA YASUHIRO (JP)
MISHIMA HIDEHIKO (JP)
Application Number:
PCT/JP2005/001051
Publication Date:
August 04, 2005
Filing Date:
January 20, 2005
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
MASUDA YASUHITO (JP)
OKUDA YASUHIRO (JP)
MISHIMA HIDEHIKO (JP)
MASUDA YASUHITO (JP)
OKUDA YASUHIRO (JP)
MISHIMA HIDEHIKO (JP)
International Classes:
B23K26/00; B23K26/382; B23K26/40; C08J9/36; (IPC1-7): B23K26/38
Foreign References:
| JPH10508798A | 1998-09-02 |
Other References:
MIDORIKAWA K.: "Femto-Byo Laser no Genjo to Kako Oyo.", 1998, ISBN: 4-947684-21-6, pages: 32, XP008074132
ADHI P.K. ET AL: "Femtosecond ultraviolet (248 nm) excimer laser processing of Teflon (PTFE).", APPLIED SURFACE SCIENCE., vol. 218, 2003, XP008074137
See also references of EP 1707299A4
ADHI P.K. ET AL: "Femtosecond ultraviolet (248 nm) excimer laser processing of Teflon (PTFE).", APPLIED SURFACE SCIENCE., vol. 218, 2003, XP008074137
See also references of EP 1707299A4
Attorney, Agent or Firm:
Nishikawa, Shigeaki (43-9 Higashi-Nippori 3-chom, Arakawa-ku Tokyo 14, JP)
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