Title:
PROCESS FOR MANUFACTURING ELECTRET, AND ELECTROSTATIC INDUCTION-TYPE CONVERSION ELEMENT
Document Type and Number:
WIPO Patent Application WO/2010/095553
Kind Code:
A1
Abstract:
Disclosed is a process for manufacturing an electret that can realize high long-term stability of electrical charges carried therein and has high thermal stability and excellent charge-retaining properties. Also disclosed is an electrostatic induction-type conversion element comprising the electret.
Specifically disclosed is a process for manufacturing an electret, which is characterized by involving a step of thermally treating a composition comprising a fluorine-containing polymer and a silane coupling agent, wherein the fluorine-containing polymer has an aliphatic ring structure in the main chain thereof and also has a carboxy group or an alkoxycarbonyl group as a terminal group thereof, the silane coupling agent has an amino group, and the weight average molecular weight of the fluorine-containing polymer is 200,000 or more. Also specifically disclosed is an electrostatic induction-type conversion element comprising the electret.
Inventors:
KASHIWAGI KIMIAKI (JP)
Application Number:
PCT/JP2010/051989
Publication Date:
August 26, 2010
Filing Date:
February 10, 2010
Export Citation:
Assignee:
ASAHI GLASS CO LTD (JP)
KASHIWAGI KIMIAKI (JP)
KASHIWAGI KIMIAKI (JP)
International Classes:
H01G7/02; H04R19/01; H04R19/04; H04R31/00
Domestic Patent References:
| WO2008133088A1 | 2008-11-06 |
Foreign References:
| JP2008266563A | 2008-11-06 | |||
| JP2009038507A | 2009-02-19 |
Other References:
See also references of EP 2400515A4
JOURNAL OF CHEMICAL SOCIETY OF JAPAN, 2001, pages 661
JOURNAL OF CHEMICAL SOCIETY OF JAPAN, 2001, pages 661
Attorney, Agent or Firm:
SENMYO, Kenji et al. (JP)
Spring name Kenji (JP)
Spring name Kenji (JP)
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