Title:
POWDERY VINYL POLYMER, CURABLE RESIN COMPOSITION, AND CURED OBJECT
Document Type and Number:
WIPO Patent Application WO/2010/090246
Kind Code:
A1
Abstract:
A powdery vinyl polymer which has excellent dispersibility in a curable resin composition and makes the curable resin composition rapidly come into a gel state when heated at a given temperature for a short time period. The powdery polymer has a low ion concentration and is useful as a pregellant which is for imparting excellent electrical characteristics to a cured object to be obtained and is suitable for use in the field of electronic materials. Provided are a curable resin composition containing the powdery vinyl polymer and a cured object obtained from the curable resin composition. The powdery vinyl polymer has an acetone soluble content of 30 mass% or higher, the acetone solubles having a mass-average molecular weight of 100,000 or higher, and has an alkali metal ion content of 10 ppm or lower and a volume-average primary-particle diameter (Dv) of 200 nm or larger.
Inventors:
FUKUTANI KAORI (JP)
KASAI TOSHIHIRO (JP)
KASAI TOSHIHIRO (JP)
Application Number:
PCT/JP2010/051575
Publication Date:
August 12, 2010
Filing Date:
February 04, 2010
Export Citation:
Assignee:
MITSUBISHI RAYON CO (JP)
FUKUTANI KAORI (JP)
KASAI TOSHIHIRO (JP)
FUKUTANI KAORI (JP)
KASAI TOSHIHIRO (JP)
International Classes:
C08F265/06; C08G59/50; C08L51/00; C08L63/00
Foreign References:
| JP2007277529A | 2007-10-25 | |||
| JP2004238432A | 2004-08-26 | |||
| JP2004224846A | 2004-08-12 | |||
| JP2005232411A | 2005-09-02 | |||
| JP2003049050A | 2003-02-21 | |||
| JPH11129368A | 1999-05-18 | |||
| JP2009024751A | 2009-02-05 | |||
| JP2009193366A | 2009-08-27 |
Other References:
See also references of EP 2395032A1
Attorney, Agent or Firm:
MIYAZAKI, Teruo et al. (JP)
Akio Miyazaki (JP)
Akio Miyazaki (JP)
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