Title:
THERMOSETTING RESIN COMPOSITION, CURED PRODUCT, AND PRINTED WIRING BOARD
Document Type and Number:
WIPO Patent Application WO/2023/054617
Kind Code:
A1
Abstract:
[Problem] The present invention addresses the problem of providing a thermosetting resin composition, the provisionally cured state and the fully cured state of which are able to be distinguished from each other by visual observation. [Solution] The present invention provides a thermosetting resin composition which contains a thermosetting resin, a curing agent and a filler, and which is characterized in that formula 1 is satisfied if L1 is the L* value of the thermosetting resin composition before curing as determined by the L*a*b* color system, L2 is the L* value of a provisionally cured product, which is obtained by thermally curing the thermosetting resin composition at 80°C for 60 minutes, as determined by the L*a*b* color system, and L3 is the L* value of a fully cured product, which is obtained by further thermally curing the provisionally cured product at 150°C for 60 minutes, as determined by the L*a*b* color system. (Formula 1): (L2 – L3)/(L1 – L3) ≥ 0.70
Inventors:
OZAWA SATSUKI (JP)
SATO KAZUYA (JP)
SHIMAMIYA MARIKO (JP)
ARAI YASUAKI (JP)
TAKAHASHI CHIKA (JP)
SATO KAZUYA (JP)
SHIMAMIYA MARIKO (JP)
ARAI YASUAKI (JP)
TAKAHASHI CHIKA (JP)
Application Number:
PCT/JP2022/036527
Publication Date:
April 06, 2023
Filing Date:
September 29, 2022
Export Citation:
Assignee:
TAIYO INK MFG CO LTD (JP)
International Classes:
C08L101/00; C08G59/40; C08L63/00; H05K3/28
Foreign References:
| JP2007084796A | 2007-04-05 | |||
| JP2009272431A | 2009-11-19 |
Attorney, Agent or Firm:
MIYAJIMA Manabu et al. (JP)
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