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Patent Searching and Data


Title:
ACTIVE ESTER RESIN AND COMPOSITION AND HARDENED SUBSTANCE USING SAME
Document Type and Number:
WIPO Patent Application WO/2018/235425
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a means by which an obtained hardened substance has a low dielectric dissipation factor and superior heat resistance. Specifically, the present invention provides an active ester resin that is a reaction product of a first aromatic compound having at least two phenolic hydroxyl groups, a second aromatic compound having a phenolic hydroxyl group, a third aromatic compound having at least two carboxy groups, and/or acid halide or esterified forms thereof, wherein at least one of the first aromatic compound, the second aromatic compound, the third aromatic compound and/or the acid halide or esterified forms thereof includes a substituted group that includes an unsaturated bond.

Inventors:
SATOU YUTAKA (JP)
YAMOTO KAZUHISA (JP)
HAYASHI KOJI (JP)
Application Number:
JP2018/016548
Publication Date:
December 27, 2018
Filing Date:
April 24, 2018
Export Citation:
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Assignee:
DAINIPPON INK & CHEMICALS (JP)
International Classes:
C07C69/773; C08G59/40; H05K1/03
Domestic Patent References:
WO2012002119A12012-01-05
Foreign References:
JP2017088544A2017-05-25
JP2012246367A2012-12-13
Attorney, Agent or Firm:
OGAWA Shinji (JP)
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