Title:
NOVOLAC RESIN AND THERMOSETTING RESIN COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2010/079672
Kind Code:
A1
Abstract:
Disclosed are a modified novolac resin having excellent moisture resistance and heat resistance, and a thermosetting resin composition wherein the modified novolac resin is blended as a curing agent. Specifically disclosed is a novolac resin represented by formula (III), wherein the ratio of ortho-ortho-ortho bonds produced by condensing a hydrogen atom in the ortho position of a phenol represented by formula (II') and a phenol represented by formula (II'') with an aldehyde group of an orthohydroxybenzaldehyde is not less than 70% by mole of the total bonds. Also specifically disclosed is an epoxy resin composition containing the novolac resin.
Inventors:
TAKIMOTO SHINICHI (JP)
ONO NORIYOSHI (JP)
ONO NORIYOSHI (JP)
Application Number:
PCT/JP2009/070879
Publication Date:
July 15, 2010
Filing Date:
December 15, 2009
Export Citation:
Assignee:
SHOWA HIGHPOLYMER (JP)
TAKIMOTO SHINICHI (JP)
ONO NORIYOSHI (JP)
TAKIMOTO SHINICHI (JP)
ONO NORIYOSHI (JP)
International Classes:
C08G8/00; C08G8/04; C08G59/08; C08G59/62
Domestic Patent References:
| WO2007037500A1 | 2007-04-05 |
Foreign References:
| JP2008262206A | 2008-10-30 | |||
| JP2004043777A | 2004-02-12 | |||
| JP2004269613A | 2004-09-30 | |||
| JP2004361638A | 2004-12-24 | |||
| JP2006249178A | 2006-09-21 |
Attorney, Agent or Firm:
OHTANI, Tamotsu (JP)
Tamotsu Otani (JP)
Tamotsu Otani (JP)
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