Title:
THERMAL EXPANSION MICROSPHERES, MANUFACTURING METHOD AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2015/178329
Kind Code:
A1
Abstract:
Thermal expansion microspheres are provided which are substantially spherical, have excellent expansion, and have good workability when mixed with a resin; also provided are a manufacturing method and use of said microspheres. These thermal expansion microspheres comprise: an outer shell made of a thermoplastic resin; and a foaming agent which is enclosed in the outer shell and is vaporized by heating. The thermoplastic resin essentially contains methacrylic acid ester monomers and carboxylic group-containing monomers, and is obtained by polymerizing a polymerizable component in which a nitrile-base monomer is 0-30 parts by weight for every total 100 parts by weight of the methacrylic acid ester monomers and carboxylic group-containing monomers, and the foaming agent essentially contains hydrocarbons having 8 or more carbon atoms.
More Like This:
Inventors:
SAKABE KOICHI (JP)
MIKI KATSUSHI (JP)
NOMURA YASUYUKI (JP)
MIKI KATSUSHI (JP)
NOMURA YASUYUKI (JP)
Application Number:
PCT/JP2015/064141
Publication Date:
November 26, 2015
Filing Date:
May 18, 2015
Export Citation:
Assignee:
MATSUMOTO YUSHI SEIYAKU KK (JP)
International Classes:
C09K3/00; B01J13/02; C08F2/18; C08F220/00
Domestic Patent References:
| WO2009050863A1 | 2009-04-23 | |||
| WO2006030946A1 | 2006-03-23 | |||
| WO2014196625A1 | 2014-12-11 |
Foreign References:
| JP2014080616A | 2014-05-08 | |||
| JP2012513487A | 2012-06-14 | |||
| JP2011016884A | 2011-01-27 | |||
| JP2012122025A | 2012-06-28 |
Download PDF: