Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
ELECTRET FILTER
Document Type and Number:
WIPO Patent Application WO/2016/088691
Kind Code:
A1
Abstract:
The present invention provides an electret filter that can be produced by a low-cost and easy method, said filter having electret properties, oil repellency, and oil mist resistance. An electret filter comprising a fiber layer that is formed from fibers, and an oil-repellent layer that includes a fluorine-containing polymer adhered to the surface of the fiber layer, wherein the fluorine-containing polymer is obtained from a monomer component that includes a monomer that has a fluorine-containing alkyl group having a carbon number of 7 or less or a fluorine-containing alkylene group having a carbon number of 7 or less, and the glass transition temperature or melting point of the fluorine-containing polymer is 60°C or more.

Inventors:
KITAGAWA YOSHIYUKI (JP)
Application Number:
PCT/JP2015/083521
Publication Date:
June 09, 2016
Filing Date:
November 30, 2015
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TOYO BOSEKI (JP)
International Classes:
B01D39/14; B01D39/16; B03C3/28; B32B27/12; B32B27/30; C08F14/18; D06M15/277
Domestic Patent References:
WO2009104699A12009-08-27
Foreign References:
JP2013034941A2013-02-21
JPH05214655A1993-08-24
JP2012001724A2012-01-05
JPS59181066U1984-12-03
JPH06319923A1994-11-22
Attorney, Agent or Firm:
UEKI, Kyuichi et al. (JP)
Hisakazu Ueki (JP)
Download PDF: