Title:
POROUS POLYIMIDE FILM
Document Type and Number:
WIPO Patent Application WO/2022/230546
Kind Code:
A1
Abstract:
Provided is a porous polyimide film having an excellent gas permeation rate. The porous film is constituted from a porous material comprising either a polyimide resin or a polyimide resin composition including a polyimide resin and has gas permeability. At least one main surface of the porous film has a contact angle with water of 100° or greater or the at least one main surface has a content of fluorine atoms of 5 atm% or higher.
Inventors:
MORITA TAKAAKI (JP)
NISHIBATA MIKIO (JP)
HIKIMA TAKESHI (JP)
NISHIBATA MIKIO (JP)
HIKIMA TAKESHI (JP)
Application Number:
PCT/JP2022/015189
Publication Date:
November 03, 2022
Filing Date:
March 28, 2022
Export Citation:
Assignee:
TOKYO OHKA KOGYO CO LTD (JP)
International Classes:
B01D71/64; B01D69/02; C08G73/10
Foreign References:
| JPH0852332A | 1996-02-27 | |||
| JP2018114491A | 2018-07-26 | |||
| JPH119974A | 1999-01-19 | |||
| JP2017127992A | 2017-07-27 | |||
| JP2012115778A | 2012-06-21 |
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
Download PDF:
Previous Patent: SHIFT DEVICE FOR ELECTRIC VEHICLE
Next Patent: LAMINATE, AND METHOD FOR PRODUCING SAME
Next Patent: LAMINATE, AND METHOD FOR PRODUCING SAME