Title:
CROSSLINKED POLYMER PARTICLES FOR EPOXY RESINS, EPOXY RESIN COMPOSITION, AND CURED EPOXY ARTICLE
Document Type and Number:
WIPO Patent Application WO/2012/096256
Kind Code:
A1
Abstract:
Disclosed are: crosslinked polymer particles for epoxy resins, comprising a (meth)acrylic acid ester monomer unit and a crosslinkable monomer unit and having a volume average primary particle diameter of 0.5-10 μm, wherein the glass transition temperature of a monomer component other than the crosslinkable monomer is 30˚C or higher as determined by an FOX method and the polymer particles have a refractive index of 1.490-1.510 at 23˚C; an epoxy resin composition which comprises the crosslinkable polymer particles, an epoxy resin and a curing agent; and a cured epoxy article which is produced by curing the resin composition, is colorless and transparent, and has cracking resistance.
Inventors:
NISHII HIROYUKI (JP)
KASAI TOSHIHIRO (JP)
KASAI TOSHIHIRO (JP)
Application Number:
PCT/JP2012/050274
Publication Date:
July 19, 2012
Filing Date:
January 10, 2012
Export Citation:
Assignee:
MITSUBISHI RAYON CO (JP)
NISHII HIROYUKI (JP)
KASAI TOSHIHIRO (JP)
NISHII HIROYUKI (JP)
KASAI TOSHIHIRO (JP)
International Classes:
C08L63/00; C08F220/10; C08L33/06
Foreign References:
| JP2005350647A | 2005-12-22 | |||
| JP2005350646A | 2005-12-22 | |||
| JPH08100163A | 1996-04-16 | |||
| JP2009249569A | 2009-10-29 | |||
| JP2003082062A | 2003-03-19 | |||
| JP2010053199A | 2010-03-11 |
Other References:
"Polymer Handbook", JOHN WILEY & SONS INC.
See also references of EP 2664651A4
See also references of EP 2664651A4
Attorney, Agent or Firm:
MIYAZAKI, Teruo et al. (JP)
Akio Miyazaki (JP)
Akio Miyazaki (JP)
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Claims: