Porous film of vinylidene fluoride resin and method for...

Details Porous film of vinylidene fluoride resin and method for... Porous film of vinylidene fluoride resin and method for...

2011-05-24

2011-05-24

Cheung, William K (Department: 1762)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S255000, C526S319000, C526S317100, C526S266000, C526S303100, C526S314000

Reexamination Certificate

active

07947790

ABSTRACT:
A porous membrane of vinylidene fluoride resin excellent in hydrophilicity and having a good balance among strength, elongation and water permeation rate, which is thus useful as a microfiltration membrane or a separator of battery. The porous membrane is formed from a copolymer of 100 mols of a vinylidene fluoride monomer and 0.01-10.0 mols of a hydrophilic monomer having at least one species of hydrophilic group selected from epoxy group, hydroxy group, carboxy group, ester group, amide group and acid anhydride group.

REFERENCES:
patent: 4618533 (1986-10-01), Steuck
patent: 4855163 (1989-08-01), Joffee et al.
patent: 5066401 (1991-11-01), Muller et al.
patent: 5514461 (1996-05-01), Meguro et al.
patent: 5776637 (1998-07-01), Kashio et al.
patent: 6299773 (2001-10-01), Takamura et al.
patent: 6327136 (2001-12-01), Meguro et al.
patent: 2002/0144944 (2002-10-01), Arcella et al.
patent: 2 620 712 (1989-03-01), None
patent: 1-144409 (1989-06-01), None
patent: 7-173323 (1995-07-01), None
patent: 10-168218 (1998-06-01), None
patent: 11-152366 (1999-06-01), None
patent: 2002-331232 (2002-11-01), None
Communication pursuant to Article 94(3) EPC dated May 19, 2009 issued in connection with European Application No. 04 726 807.3 corresponding to present U.S. application.

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