Title:
CHARGE RETENTION MEDIUM
Document Type and Number:
WIPO Patent Application WO/2012/074115
Kind Code:
A1
Abstract:
Provided is a charge retention medium which, despite being obtained from a composition containing a fluorine-containing copolymer having recurring units based on tetrafluoroethylene and recurring units based on ethylene, has a surface electric potential at a practical level. The charge retention medium (electret (30)) is obtained from a composition containing: (A) a fluorine-containing copolymer having recurring units based on tetrafluoroethylene and recurring units based on ethylene; and (B) at least one type of charge additive selected from a group consisting of compounds having at least one amino group and having one or more reactive functional groups (excluding amino groups), and compounds that have two or more amino groups and that do not have reactive functional groups (excluding amino groups).
Inventors:
NAKANO TAKASHI (JP)
KASHIWAGI KIMIAKI (JP)
OKANO KUNIKO (JP)
SHIROTA NAOKO (JP)
MORIZAWA YOSHITOMI (JP)
HAMATANI YOSHIKI (JP)
KASHIWAGI KIMIAKI (JP)
OKANO KUNIKO (JP)
SHIROTA NAOKO (JP)
MORIZAWA YOSHITOMI (JP)
HAMATANI YOSHIKI (JP)
Application Number:
PCT/JP2011/077987
Publication Date:
June 07, 2012
Filing Date:
December 02, 2011
Export Citation:
Assignee:
ASAHI GLASS CO LTD (JP)
NAKANO TAKASHI (JP)
KASHIWAGI KIMIAKI (JP)
OKANO KUNIKO (JP)
SHIROTA NAOKO (JP)
MORIZAWA YOSHITOMI (JP)
HAMATANI YOSHIKI (JP)
NAKANO TAKASHI (JP)
KASHIWAGI KIMIAKI (JP)
OKANO KUNIKO (JP)
SHIROTA NAOKO (JP)
MORIZAWA YOSHITOMI (JP)
HAMATANI YOSHIKI (JP)
International Classes:
H01G7/02; C08K5/17; C08K5/544; C08L27/18; C09D123/08; C09D127/18; H02N1/00
Domestic Patent References:
| WO2010032759A1 | 2010-03-25 | |||
| WO2010095554A1 | 2010-08-26 | |||
| WO2010044421A1 | 2010-04-22 | |||
| WO2010044425A1 | 2010-04-22 | |||
| WO2010044421A1 | 2010-04-22 | |||
| WO2010032759A1 | 2010-03-25 |
Foreign References:
| JP2010167703A | 2010-08-05 | |||
| JPH06332198A | 1994-12-02 | |||
| JP2007199639A | 2007-08-09 | |||
| JP4456803B2 | 2010-04-28 | |||
| JP2009012474A | 2009-01-22 | |||
| JPS5021299A | 1975-03-06 | |||
| JP2010270652A | 2010-12-02 |
Other References:
"Hansen Solubility Parameters: A Users Handbook", 2007, CRC PRESS
"Hansen Solubility Parameters in Practice (HSPiP", HANSEN
G.M.SESSLER: "Electrets Third Edition", 1998, LAPLACIAN PRESS, article "Charging and Polarizing Methods", pages: 20
See also references of EP 2648196A4
"Hansen Solubility Parameters in Practice (HSPiP", HANSEN
G.M.SESSLER: "Electrets Third Edition", 1998, LAPLACIAN PRESS, article "Charging and Polarizing Methods", pages: 20
See also references of EP 2648196A4
Attorney, Agent or Firm:
SENMYO, Kenji et al. (JP)
Spring name Kenji (JP)
Spring name Kenji (JP)
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Claims: