Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
PROCESS FOR MANUFACTURING ELECTRET, AND ELECTROSTATIC INDUCTION-TYPE CONVERSION ELEMENT
Document Type and Number:
WIPO Patent Application WO/2010/095554
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 thermal treatment is carried out at a temperature ranging from 250 to 330°C. Also specifically disclosed is an electrostatic induction-type conversion element comprising the electret.

Inventors:
KASHIWAGI KIMIAKI (JP)
Application Number:
PCT/JP2010/051990
Publication Date:
August 26, 2010
Filing Date:
February 10, 2010
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
ASAHI GLASS CO LTD (JP)
KASHIWAGI KIMIAKI (JP)
International Classes:
H01G7/02; H04R19/01; H04R19/04
Domestic Patent References:
WO2008114489A12008-09-25
Foreign References:
JP2008266563A2008-11-06
JP2008133088A2008-06-12
JP2006180450A2006-07-06
JPH0353657B21991-08-15
JP2009038508A2009-02-19
Other References:
See also references of EP 2400516A4
G.M. SESSLER: "Charging and Polarizing Methods", 1998, LAPLACIAN PRESS, pages: 20
JOUMAL OF CHEMICAL SOCIETY OF JAPAN, 2001, pages 661
Attorney, Agent or Firm:
SENMYO, Kenji et al. (JP)
Spring name Kenji (JP)
Download PDF: