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Patent Searching and Data


Title:
COMPOSITE FILM MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2016/157635
Kind Code:
A1
Abstract:
Provided is a composite film manufacturing method comprising a coating step wherein a coating layer is formed by coating one surface or both surfaces of a porous substrate with a coating liquid that contains a resin, a solidifying step wherein said resin is solidified by contacting said coating layer with a solidifying liquid and a composite film provided with a porous layer that contains said resin is obtained on said one surface or both surfaces of said porous substrate, a water washing step wherein said composite film is water washed and a drying step wherein water is removed from said composite film while said composite film is conveyed at a speed of at least 30 m/min, wherein a drying device provided with a drying means that comprises a contact-type heating means and a heated air blowing means is used to remove water from said composite film by contacting said composite film with said contact-type heating means and by subjecting said composite film to heated air blown from said heated air blowing means.

Inventors:
TANIKAWA NOBORU (JP)
HONMOTO HIROYUKI (JP)
Application Number:
JP2015/084722
Publication Date:
October 06, 2016
Filing Date:
December 10, 2015
Export Citation:
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Assignee:
TEIJIN LTD (JP)
International Classes:
B01D69/12; B01D69/10; B32B5/32; F26B13/08
Foreign References:
JP2014173013A2014-09-22
JPH09187631A1997-07-22
JPS6287211A1987-04-21
JPS6078604A1985-05-04
JPS6323703A1988-02-01
Attorney, Agent or Firm:
NAKAJIMA, Jun et al. (?1600022, JP)
Nakajima 淳 (?1600022, JP)
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