Title:
PROCESS FOR PRODUCING HOLLOW MICROSPHERES AND PROCESS FOR PRODUCING POROUS MOLDED CERAMIC
Document Type and Number:
WIPO Patent Application WO/2010/070987
Kind Code:
A1
Abstract:
A process for producing hollow microspheres which comprises: a step (1) in which heat-expandable microspheres having a microcapsular structure comprising a shell formed from a thermoplastic resin and, encapsulated therein, a blowing agent capable of gasifying or generating a gas and a solid material having an average particle diameter or average major-axis length smaller than the average particle diameter of the heat-expandable microspheres are dispersed in a liquid dispersion medium to prepare a slurry; and a step (2) in which the heat-expandable microspheres are heated in the slurry to soften and thermally expand the shells thereof, thereby forming hollow microspheres having the solid material adherent to the surface of the softened shells.
Inventors:
EJIRI TETSUO (JP)
SATAKE YOSHIKATSU (JP)
SATAKE YOSHIKATSU (JP)
Application Number:
PCT/JP2009/068869
Publication Date:
June 24, 2010
Filing Date:
November 05, 2009
Export Citation:
Assignee:
KUREHA CORP (JP)
EJIRI TETSUO (JP)
SATAKE YOSHIKATSU (JP)
EJIRI TETSUO (JP)
SATAKE YOSHIKATSU (JP)
International Classes:
B01J13/04; C04B38/06; C09K3/00
Foreign References:
| JPH06240040A | 1994-08-30 | |||
| JP2005103469A | 2005-04-21 | |||
| JP2004137293A | 2004-05-13 | |||
| JP2007039333A | 2007-02-15 | |||
| JP2006035092A | 2006-02-09 |
Attorney, Agent or Firm:
NISHIKAWA Shigeaki et al. (JP)
Shigeaki Nishikawa (JP)
Shigeaki Nishikawa (JP)
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