Title:
POLYHYDROXY RESIN, METHOD FOR PRODUCING SAME, EPOXY RESIN, EPOXY RESIN COMPOSITION AND CURED PRODUCT OF EPOXY RESIN COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2017/170703
Kind Code:
A1
Abstract:
Provided are: an epoxy resin composition which is capable of providing a cured product that exhibits high Tg properties and excellent thermal decomposition stability if used for lamination, molding, casting, bonding and the like, while having an excellent effect of reducing chlorine ions in an extraction solution, and which is useful as a sealing material for electrical/electronic components and the like, a circuit board material and a sheet material; and a polyhydroxy resin which serves as a starting material for an epoxy resin that is used for the purpose of obtaining the above-described cured product.
A polyhydroxy resin represented by general formula (3), which is characterized in that: a component where n = 0 is from 15% to 30% (inclusive); a high molecular weight component where n = 6 or higher is 30% or less; and the total chlorine amount is 1,000 wt ppm or less.
(In the formula, n represents a number of 0-20.)
Inventors:
HIROTA KEN (JP)
OMURA MASAKI (JP)
OMURA MASAKI (JP)
Application Number:
PCT/JP2017/012921
Publication Date:
October 05, 2017
Filing Date:
March 29, 2017
Export Citation:
Assignee:
NIPPON STEEL & SUMIKIN CHEM CO (JP)
International Classes:
C08G61/02; C08G59/06
Domestic Patent References:
| WO2014065152A1 | 2014-05-01 | |||
| WO2011074517A1 | 2011-06-23 | |||
| WO2015146606A1 | 2015-10-01 | |||
| WO2014103926A1 | 2014-07-03 | |||
| WO2012043563A1 | 2012-04-05 | |||
| WO2009110052A1 | 2009-09-11 |
Foreign References:
| JP2006248912A | 2006-09-21 | |||
| JP2015189925A | 2015-11-02 | |||
| JP2013209503A | 2013-10-10 | |||
| JPH06271654A | 1994-09-27 | |||
| JP2016190891A | 2016-11-10 | |||
| JP2016074805A | 2016-05-12 |
Attorney, Agent or Firm:
SASAKI Kazuya et al. (JP)
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