Title:
IRREGULARLY SHAPED PARTICLES AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2010/113812
Kind Code:
A1
Abstract:
Disclosed is a method for producing irregularly shaped particles which is a method for obtaining irregularly shaped particles by allowing seed particles to absorb a polymerizable vinyl monomer in an aqueous emulsion and polymerizing the absorbed polymerizable vinyl monomer, wherein the seed particles are resin particles derived from a (meth)acrylate ester containing at least an alkyl group having 3 or more but less than 6 carbon atoms in the ester moiety and having a weight average molecular weight (measured by GPC (gel permeation chromatography)) of 150,000 to 1,000,000, and the polymerizable vinyl monomer contains a crosslinkable monomer in an amount of 5 to 50% by weight of the total amount of the polymerizable vinyl monomer.
Inventors:
HARADA RYOSUKE (JP)
Application Number:
PCT/JP2010/055428
Publication Date:
October 07, 2010
Filing Date:
March 26, 2010
Export Citation:
Assignee:
SEKISUI PLASTICS (JP)
HARADA RYOSUKE (JP)
HARADA RYOSUKE (JP)
International Classes:
C08F2/00; C08F2/22; C08F265/06
Foreign References:
| JP2009161600A | 2009-07-23 | |||
| JP2006274238A | 2006-10-12 | |||
| JP2006219559A | 2006-08-24 | |||
| JP2004076216A | 2004-03-11 | |||
| JPH07188313A | 1995-07-25 | |||
| JPH01268704A | 1989-10-26 | |||
| JPS63223018A | 1988-09-16 | |||
| JP2000038455A | 2000-02-08 |
Other References:
"REFERENCE MANUFAL FOR THE COULTER MULTISIZER", 1987, COULTER ELECTRONICS LIMITED FOR THE MEASUREMENT
"REFERENCE MANUFAL FOR THE COULTER MULTISIZER", 1987, COULTER ELECTRONICS LIMITED
See also references of EP 2415786A4
"REFERENCE MANUFAL FOR THE COULTER MULTISIZER", 1987, COULTER ELECTRONICS LIMITED
See also references of EP 2415786A4
Attorney, Agent or Firm:
NOGAWA, Shintaro (JP)
Shintaro Nogawa (JP)
Shintaro Nogawa (JP)
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