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Patent Searching and Data


Title:
POROUS FILTER
Document Type and Number:
WIPO Patent Application WO/2015/182538
Kind Code:
A1
Abstract:
A porous filter comprising a porous laminate having a plurality of PTFE biaxially stretched porous sheets laminated therein. The Gurley number (G) and the bubble point (B) of the porous laminate fulfil formulas (1) and (2). log G > 3.7 × 10-3 × B - 0.8 … (1) log G < 4.9 × 10-3 × B + 0.45 … (2)

Inventors:
TSUJIWAKI HIROYUKI (JP)
UNO ATSUSHI (JP)
HAYASHI FUMIHIRO (JP)
Application Number:
PCT/JP2015/064860
Publication Date:
December 03, 2015
Filing Date:
May 25, 2015
Export Citation:
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Assignee:
SUMITOMO ELEC FINE POLYMER INC (JP)
International Classes:
B01D71/36; B01D69/02; B01D69/10; B01D69/12; B32B5/32; B32B7/02
Domestic Patent References:
WO2008018400A12008-02-14
Foreign References:
JP2009501632A2009-01-22
JPH11501961A1999-02-16
Attorney, Agent or Firm:
NISHIMA, Hideaki et al. (JP)
Hideaki Futajima (JP)
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